CN106452203A - Reliable drive control system, and control method thereof - Google Patents
Reliable drive control system, and control method thereof Download PDFInfo
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- CN106452203A CN106452203A CN201610946114.4A CN201610946114A CN106452203A CN 106452203 A CN106452203 A CN 106452203A CN 201610946114 A CN201610946114 A CN 201610946114A CN 106452203 A CN106452203 A CN 106452203A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
- H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a reliable drive control system. The reliable drive control system includes the following parts: a first control device for outputting a first signal, a second control device for outputting a second signal, a first controlled device receiving the first signal, a second switch control module receiving the first signal, a second controller device receiving the second signal, a first switch control module receiving the second signal, a first fault detection module for detecting the operating state of the first signal, and a second fault detection module for detecting the operating state of the second signal, wherein when the first fault detection module detects that the operating state of the first signal is failure, the first fault detection module controls the first switch control module to conduct, and then the second signal is output to the first controlled device through the first switch control module; and when the second fault detection module detects that the operating state of the second signal is failure, the second fault detection module controls the second switch control module to conduct, and then the first signal is output to the second controlled device through the second switch control module.
Description
Technical field
The present invention relates to control technology, and in particular to a kind of reliable driving control system and its control method.
Background technology
Most of pressurized-water reactor nuclear power plants all adopt magnetic force enhancing drive mechanism, and the drive mechanism of the type is by coordinating not
The orderly action of same hold assembly (hook) is realizing lifting, insertion or the holding action of control rod, and then realizes reactor work(
The control of rate.
CRDM is a kind of special electric machine, and the action of its hook is by the confession power-off realization to corresponding coil.CRDM
General arrangements lifting coil, transmission hook (also known as moveable finger, mobile hook) coil and holding (also known as fixing hook) hook
Three kinds of coils of coil.Wherein lifting coil is used for lifting (coil power supply) or release (coil blackout) transmission hook, transmits hook
Coil and keep hook coil to be respectively used for transmitting hook and keep hook to the clamping (coil power supply) of control rod drive rod or
Release (coil blackout).Under normal circumstances, transmission hook and keep hook at least one is driven the clamping (coil of bar
Power supply), if both will be while release (coil blackout), will cause the landing of control rod.The unexpected landing of control rod will reduce nuclear power
Stand operation economy, if control rod landing triggering emergency shut-down operating mode, by trigger protection action, reactor of closing down.Therefore right
The effective control of CRDM hook coil is the basic guarantee that CRDM is reliably captured to control rod.
According to the difference of control rod quantity, the CRDM of respective numbers need to be configured, and then needs many set CRDM control devices (logical
Frequently referred to power cabinet, need to typically configure several to dozens of).In current nuclear power station, the control device of CRDM is each other
Independent, the control to CRDM is realized each via nonredundancy mode.The shortcoming of this type control method is：When the control device
Two hook common power supply section failure when, CRDM hook will discharge, it is impossible to clamp control rod.Control rod will lose control
System, falls into reactor core, affects the economy of power station operation.
For the shortcoming of traditional control method, devise one kind herein and can improve CRDM power supply reliability, it is ensured which has
Effect crawl control rod, reduces the control method of control rod accident landing probability.
Content of the invention
It is an object of the invention to provide for a kind of reliable driving control system and its control method, the design is adopted
Different control devices is matched (device to) two-by-two, by 2 controlled units（Transmission hook coil and holding hook coil）For
Electricity part is interconnected by switch control module, is mutually redundant, and is controlled after fault monitor module detects power supply state
Opening and shutoff for switch control module, realizes the redundant power supply between 2 control devices, realizes drive mechanism to control rod
Reliable crawl.
For reaching above-mentioned purpose, technical scheme is as follows：A kind of reliable driving control system, including with bottom
Part,
For exporting the first control device of the first signal；
For exporting the second control device of secondary signal；
Receive the first controlled unit and the second switch control module of the first signal；
Receive the second controlled unit and the first switch control module of secondary signal；
Detect the Fisrt fault detection module of the first signal running status；
When Fisrt fault detection module detects the first signal running status for fault, Fisrt fault detection module control first
Switch control module is turned on, then secondary signal is exported to the first controlled unit through first switch control module；
Second fault detection module of detection secondary signal running status；
When the second fault detection module detects secondary signal running status for fault, the second fault detection module control second
Switch control module is turned on, then the first signal is exported to the second controlled unit by second switch control module.
Based on said structure, the design principle of the present invention is：In traditional 2 independent control intervals, each control room
Every control device and controlled unit is all included, control device sends a signal to control device, and control device is receiving letter
Number laggard action is made, for example, in the control rod driving system in pressurized-water reactor nuclear power plant, according to the difference of control rod quantity, need
The CRDM of configuration respective numbers, and then (commonly referred to power cabinet need to typically be configured several to several to need many set CRDM control devices
Ten).In current nuclear power station, the control device of CRDM is independent of one another, and it is right to realize each via nonredundancy mode
The control of CRDM.The shortcoming of this type control method is：The two hook common power supply section failure when the control device
When, CRDM hook will discharge, it is impossible to clamp control rod.Control rod will be out of hand, falls into reactor core, affects the economy of power station operation
Property.In order to solve above-mentioned existing issue, 2 independent control intervals are grouped together in prior art by the present invention
Control is right, increases switch control module and fault detection module in control centering, and 2 switch control modules are received respectively from the
First signal of one control device and the secondary signal from second control device, i.e. second switch control module receive first and believe
Number, first switch control module receives secondary signal；After so arranging, 2 fault detection module detect the shape of 2 signals respectively
State, i.e. the Fisrt fault of the second fault detection module of detection secondary signal running status and the first signal running status of detection
Detection module, and Fisrt fault detection module control the cut-offfing of first switch control module, the second fault detection module control the
Cut-offfing for two switch control modules, so allows under switch control module conducting state, can receive other road control dress
The signal that puts, causes 2 control intervals be formed and is mutually redundant.
Specifically, for example, by taking the control of nuclear power station control rod as an example, there is a control device in each control interval, and
This control device includes that transmitting hook coil current adjusts circuit and keep hook coil current to adjust circuit, while there is also
Receiving the transmission hook coil of transmission hook coil current regulation circuit output power supply and receiving keeps hook coil current to adjust
The holding hook coil of circuit power, transmission hook coil current adjusts circuit and keeps hook coil current regulation circuit suitable
In control device, transmit hook coil and keep hook coil equivalent to controlled unit, control device is by entering input current
Row conditioning, requires to encourage each coil of drive mechanism with regular hour order according to dynamic rod, so as to realize the effective of each hook
Action.For the defect that control device each works independently, a kind of control method is devised herein by each two control device two
Two pairings, are combined into device pair, are mutually redundant.
For ease of description, herein the control device for matching two-by-two is respectively become first control device (abbreviation device A)
With second control device (abbreviation device B), and by be mutually paired 2 control covering devices become control device to (abbreviation device
Right).
For realizing for two single control device (device A and device B) being combined into device pair, need design connection female
Coordinated operation between line, one-way conduction module, switch control module and fault-finding module coordination device pair.Each functions of modules
It is described as follows：
Connection bus：Signal flows to the path of switch control module, for realizing being interconnected between device pair, realizes a certain
Device (as device A) occurs effectively to capture real by another device (device B) of device centering under the failure condition of control rod
Excitation of the device (device A) to CRDM coil is applied, is realized the reliability to control rod and capture；
One-way conduction module, for realizing electric current from the one-way flow for adjusting circuit and corresponding to the device coil, it is to avoid electric current leads to
The uncontrolled other side's device that flows to of the connection bus crossed between device pair corresponds to CRDM coil；
Switch control module, for realizing opening and shutoff for electric current between device pair, that is, determines whether by this device (device B)
Realize the crawl of the corresponding control rod of other side's device (device A).The module is controlled by fault-finding module, under normal circumstances, module
It is off state；
Can fault-finding module, normally capture control rod for detecting other side (device A), and cannot be reliable other side is detected
During crawl control rod, the switch control module of other side is turned on, realize grabbing other side's correspondence control rod by this device (device B)
Take.
The circuit design of this control system has two kinds：
The first：
The holding hook coil of control device adjust between circuit and its corresponding coil path one-way conduction module in parallel and
Switch control module (one-way conduction module and switch control module are serially connected)；In one-way conduction module and switch control module
Between lead be connected with each other (this is connected bus) with another device for being matched is needed；Will transmission hook coil and retaining hook
The current signal of pawl coil delivers to the fault-finding module of other side；Fault-finding module is set, monitors the electric current letter that other side sends
Number, its effective crawl to control rod is judged according to current signal, and command adapted thereto is sent to the switch control module of other side.
Second：One-way conduction module is not provided with, 2 connection buses are directly set respectively by the first of first control device
Signal is guided in second switch control module and guides to the secondary signal of second control device in the first control module, other knots
Structure is identical with the structure of first kind of way.
The workflow of control method is：
There is 2 control intervals, i.e. the first control interval and the second control interval in the system, the first control interval included the first control
Device processed（Device A）, first switch control module, the first controlled unit, the second control interval included second control device（Device
B）, second switch control module, the second controlled unit, wherein, Fisrt fault detecting module was may be located in the first control interval
Can also be located in the second control interval, the second fault-finding module may be located in the first control interval and can also be located at second
In control interval, it is preferred that in order to prevent the interruption that powers due to the control interval, causing trouble detecting module cannot work, because
This, Fisrt fault detecting module was located in the second control interval, and the second fault-finding module was located at for the first control interval so that 2
Individual fault-finding module crossfeed, it is ensured that fault-finding module energy normal work.
Fault-finding module continues to monitor the operation conditions of other side, and optionally sends closure to switch control module and refer to
Order；
Under normal circumstances, when each device A and device B possess the normal control ability to control rod, fault-finding module is not sent out
Go out close command, switch control module is off, each device interval works independently, the work shape of the other side that is independent of each other
State, each via the current regulating circuit of oneself（Control device）Directly to corresponding coil（Controlled unit）Power supply, it is right to realize
The control of control rod；
When certain fault-finding module monitors to other side (device B) normally cannot clamp control rod, when may cause Dropping of control rod
(transmission hook coil and holding hook coil current all surprisingly drop to below the threshold value for being not enough to maintain hook clamping), while
Proceed by following responses：
The normal control command (be no longer controlled rod move rod response) of device A interrupt control rod in first control interval of locking
Current dynamic rod process；
The holding hook coil current of device A adjusts circuit forced-triggered total current (generally, it is sufficient to realize hook is closed
Definite value electric current be referred to as total current, and maintain the slightly smaller definite value electric current of its closure state to be referred to as half electric current after hook closure) one
Fix time (as 300 milliseconds) enter half current work state afterwards；
The switch control module in the second control interval is turned on, now, the holding hook coil current of device A adjusts circuit can be same
When to device A (electric current by current regulating circuit be directly injected into keep hook coil) and device B (electric current by device A electric current tune
Economize on electricity road flows to the one-way conduction module of device A, flows to connection bus again, flow to the switch control module of device B again, flow to again
Holding hook coil corresponding to device B) corresponding to holding hook coil power supply, the excitation corresponding all CRDM hooks of stream oriented device
Pawl coil（First controlled unit and the second controlled unit）, clamped or maintained its clamp position to control rod, realized to control
The reliable crawl of rod processed.
Now, device B can exit the control to control rod, carry out overhaul of the equipments, after failture evacuation, can send out to device B
Go out control rod clamping order, clipping operation of the device B to control rod corresponding to which is realized, then carries out fault clearance.Fault is clear
After removing, the switch control module of the fault-finding module shearing device B of device A, the electric current that device A is provided is disconnected to device B, extensive
Multiple stream oriented device normal control each to its control rod.
Preferably, as described above, there are two states in present invention connection bus：
The first：First signal is input to second switch control module by the first one-way conduction module and first switch controls mould
Block, secondary signal is input to second switch control module and first switch control module by the second one-way conduction module.Lead to
Cross 2 one-way conduction modules and a connection bus composition communication path.
Preferably, the first one-way conduction module or with one-way conduction module be diode.
Second：First signal is directly inputted to second switch control module, and secondary signal is by being directly inputted to first
Switch control module.One-way conduction module is not provided with, and coupling cock control is directly caused using two independent connection buses
Conducting between module and signal.
When the fault-finding module for detecting signal in this control interval was located in this control interval, then mean that the fault is visited
Surveying module needs to connect the power supply in this control interval, in order to prevent upstream power supply trouble so as to cause to detect this control interval signal
Fault-finding module dead electricity, it is therefore desirable to malfunctioning module carried out arranged in a crossed manner, so avoids upstream and power to cause
Dead electricity risk；Therefore, the power supply of Fisrt fault detection module and the power supply of second control device are consistent, the second fault
The power supply of detection module is consistent with the power supply of first control device.
Preferably, the Fisrt fault detection module includes the first current sensor and a FPGA, the first current sense
Device detects the first signal, controls first switch module after the feedback signal of a FPGA the first current sensor of reception；Described
Two fault detection module include the second current sensor and the 2nd FPGA, and the second current sensor detects the first signal, second
Control second switch module after the feedback signal of FPGA the second current sensor of reception.
Preferably, the first control device and second control device all include that transmitting hook coil current adjusts circuit
Or/and keeping hook coil current to adjust circuit, first controlled unit and the second controlled unit are transmission hook coil
Or/and keep hook coil.
Preferably, the transmission hook coil current adjusts circuit or/and keeps hook coil current to adjust circuit composition
The rod control power cabinet of control control rod.
Preferably, second switch control module or/and first switch control module are controlled audion.
Based on a kind of control method of reliable driving control system, comprise the following steps：
S1：The running status of the first signal is detected using Fisrt fault detection module real-time detection, using the second fault detect mould
The running status of block real-time detection secondary signal；
S2：When the running status of the running status for detecting the first signal and secondary signal is all normal, Fisrt fault detects mould
Block and the second fault detection module do not send control instruction, and first switch control module and second switch control module are in breaking
Open state, first control device directly sends the first signal to the first controlled unit, and second control device is directly controlled to second
Device sends secondary signal, realizes the control to controlled unit；
S3：When the first signal running status is detected for fault, Fisrt fault detection module controls first switch control module
Turn on, then secondary signal is exported to the first controlled unit through first switch control module, and the first controlled unit is controlled by second
Device controls；
S4：When secondary signal running status is detected for fault, the second fault detection module controls second switch control module
Turn on, then the first signal is exported to the second controlled unit by second switch control module, and the second controlled unit is controlled by first
Device controls.
Effect of the invention is that：Driving mechanisms control device can be matched two-by-two with this method, device is realized to it
Between running status mutual supervision, each work independently under normal condition, be independent of each other.Control rod cannot effectively be captured in a side
When (scram will be caused even to trigger shutdown), the control that both sides correspond to control rod is carried out by the opposing party, realizes the reliability of control rod
Crawl.Now failed equipment can be completely out of service, carries out plant maintenance and maintenance, without causing scram shutdown.When setting
After standby failture evacuation, can recover independently to be controlled the control of rod by each device.The control method, by redundant configuration, it is ensured that
The reliable crawl of control rod, significantly reduces the risk of control rod accident landing, and enables nuclear power station remaining electric
In the case that factory is run without shutdown, integrally exit failed equipment and keeped in repair, improve the economy of nuclear power station operation, tool
There is significantly economic benefit.
Description of the drawings
Fig. 1 holds Trigger Function figure for double fastener.Fig. 2 is the structural representation of embodiment 2.
Specific embodiment
With reference to embodiment and its accompanying drawing, the present invention is described in further detail, but embodiments of the present invention
Not limited to this.
Embodiment 1
As shown in Figure 1.
A kind of reliable driving control system, including with lower component,
For exporting the first control device of the first signal；
For exporting the second control device of secondary signal；
Receive the first controlled unit and the second switch control module of the first signal；
Receive the second controlled unit and the first switch control module of secondary signal；
Detect the Fisrt fault detection module of the first signal running status；
When Fisrt fault detection module detects the first signal running status for fault, Fisrt fault detection module control first
Switch control module is turned on, then secondary signal is exported to the first controlled unit through first switch control module；
Second fault detection module of detection secondary signal running status；
When the second fault detection module detects secondary signal running status for fault, the second fault detection module control second
Switch control module is turned on, then the first signal is exported to the second controlled unit by second switch control module.
Based on said structure, the design principle of the present invention is：In traditional 2 independent control intervals, each control room
Every control device and controlled unit is all included, control device sends a signal to control device, and control device is receiving letter
Number laggard action is made, for example, in the control rod driving system in pressurized-water reactor nuclear power plant, according to the difference of control rod quantity, need
The CRDM of configuration respective numbers, and then (commonly referred to power cabinet need to typically be configured several to several to need many set CRDM control devices
Ten).In current nuclear power station, the control device of CRDM is independent of one another, and it is right to realize each via nonredundancy mode
The control of CRDM.The shortcoming of this type control method is：The two hook common power supply section failure when the control device
When, CRDM hook will discharge, it is impossible to clamp control rod.Control rod will be out of hand, falls into reactor core, affects the economy of power station operation
Property.In order to solve above-mentioned existing issue, 2 independent control intervals are grouped together in prior art by the present invention
Control is right, increases switch control module and fault detection module in control centering, and 2 switch control modules are received respectively from the
First signal of one control device and the secondary signal from second control device, i.e. second switch control module receive first and believe
Number, first switch control module receives secondary signal；After so arranging, 2 fault detection module detect the shape of 2 signals respectively
State, i.e. the Fisrt fault of the second fault detection module of detection secondary signal running status and the first signal running status of detection
Detection module, and Fisrt fault detection module control the cut-offfing of first switch control module, the second fault detection module control the
Cut-offfing for two switch control modules, so allows under switch control module conducting state, can receive other road control dress
The signal that puts, causes 2 control intervals be formed and is mutually redundant.
As depicted in figs. 1 and 2, specifically, for example, by taking the control of nuclear power station control rod as an example, each control interval is present
One control device, and this control device includes that transmitting hook coil current adjusts circuit and keep hook coil current to adjust
Circuit, adjusts the transmission hook coil of circuit output power supply and receives retaining hook while there is also and receive transmission hook coil current
Pawl coil current adjusts the holding hook coil of circuit power, and transmission hook coil current adjusts circuit and keeps hook coil electricity
Stream adjusts circuit equivalent to control device, transmits hook coil and keeps hook coil equivalent to controlled unit, and control device leads to
Crossing and input current is nursed one's health, requires each coil of drive mechanism to be encouraged with regular hour order according to dynamic rod, so as to reality
The existing effective action of each hook.For the defect that control device each works independently, devising a kind of control method herein will be per
Two control devices are matched two-by-two, are combined into device pair, are mutually redundant.
For ease of description, herein the control device for matching two-by-two is respectively become first control device (abbreviation device A)
With second control device (abbreviation device B), and by be mutually paired 2 control covering devices become control device to (abbreviation device
Right).
For realizing for two single control device (device A and device B) being combined into device pair, need design connection female
Coordinated operation between line, one-way conduction module, switch control module and fault-finding module coordination device pair.Each functions of modules
It is described as follows：
Connection bus：Signal flows to the path of switch control module, for realizing being interconnected between device pair, realizes a certain
Device (as device A) occurs effectively to capture real by another device (device B) of device centering under the failure condition of control rod
Excitation of the device (device A) to CRDM coil is applied, is realized the reliability to control rod and capture；
One-way conduction module, for realizing electric current from the one-way flow for adjusting circuit and corresponding to the device coil, it is to avoid electric current leads to
The uncontrolled other side's device that flows to of the connection bus crossed between device pair corresponds to CRDM coil；
Switch control module, for realizing opening and shutoff for electric current between device pair, that is, determines whether by this device (device B)
Realize the crawl of the corresponding control rod of other side's device (device A).The module is controlled by fault-finding module, under normal circumstances, module
It is off state；
Can fault-finding module, normally capture control rod for detecting other side (device A), and cannot be reliable other side is detected
During crawl control rod, the switch control module of other side is turned on, realize grabbing other side's correspondence control rod by this device (device B)
Take.
The circuit design of this control system has two kinds：
The first：
The holding hook coil of control device adjust between circuit and its corresponding coil path one-way conduction module in parallel and
Switch control module (one-way conduction module and switch control module are serially connected)；In one-way conduction module and switch control module
Between lead be connected with each other (this is connected bus) with another device for being matched is needed；Will transmission hook coil and retaining hook
The current signal of pawl coil delivers to the fault-finding module of other side；Fault-finding module is set, monitors the electric current letter that other side sends
Number, its effective crawl to control rod is judged according to current signal, and command adapted thereto is sent to the switch control module of other side.
Second：One-way conduction module is not provided with, 2 connection buses are directly set respectively by the first of first control device
Signal is guided in second switch control module and guides to the secondary signal of second control device in the first control module, other knots
Structure is identical with the structure of first kind of way.
The workflow of control method is：
There is 2 control intervals, i.e. the first control interval and the second control interval in the system, the first control interval included the first control
Device processed（Device A）, first switch control module, the first controlled unit, the second control interval included second control device（Device
B）, second switch control module, the second controlled unit, wherein, Fisrt fault detecting module was may be located in the first control interval
Can also be located in the second control interval, the second fault-finding module may be located in the first control interval and can also be located at second
In control interval, it is preferred that in order to prevent the interruption that powers due to the control interval, causing trouble detecting module cannot work, because
This, Fisrt fault detecting module was located in the second control interval, and the second fault-finding module was located at for the first control interval so that 2
Individual fault-finding module crossfeed, it is ensured that fault-finding module energy normal work.
Fault-finding module continues to monitor the operation conditions of other side, and optionally sends closure to switch control module and refer to
Order；
Under normal circumstances, when each device A and device B possess the normal control ability to control rod, fault-finding module is not sent out
Go out close command, switch control module is off, each device interval works independently, the work shape of the other side that is independent of each other
State, each via the current regulating circuit of oneself（Control device）Directly to corresponding coil（Controlled unit）Power supply, it is right to realize
The control of control rod；
When certain fault-finding module monitors to other side (device B) normally cannot clamp control rod, when may cause Dropping of control rod
(transmission hook coil and holding hook coil current all surprisingly drop to below the threshold value for being not enough to maintain hook clamping), while
Proceed by following responses：
The normal control command (be no longer controlled rod move rod response) of device A interrupt control rod in first control interval of locking
Current control rod moves rod process；
The holding hook coil current of device A adjusts circuit forced-triggered total current (generally, it is sufficient to realize hook is closed
Definite value electric current be referred to as total current, and maintain the slightly smaller definite value electric current of its closure state to be referred to as half electric current after hook closure) one
Fix time (as 300 milliseconds) enter half current work state afterwards；
The switch control module in the second control interval is turned on, now, the holding hook coil current of device A adjusts circuit can be same
When to device A (electric current by current regulating circuit be directly injected into keep hook coil) and device B (electric current by device A electric current tune
Economize on electricity road flows to the one-way conduction module of device A, flows to connection bus again, flow to the switch control module of device B again, flow to again
Holding hook coil corresponding to device B) corresponding to holding hook coil power supply, the excitation corresponding all CRDM hooks of stream oriented device
Pawl coil（First controlled unit and the second controlled unit）, clamped or maintained its clamp position to control rod, realized to control
The reliable crawl of rod processed.
The switch control module in the second control interval is turned on, now, the holding hook coil current of device A adjusts circuit
Can be while (adjusting electricity by the electric current of device A to device A (be directly injected into by current regulating circuit and keep hook coil) and device B
Holding hook coil corresponding to the switch control module à device B of the one-way conduction module à connection bus à device B of road à device A
Passage is realized) corresponding to holding hook coil power supply, the excitation corresponding all CRDM hook coils of stream oriented device（First controlled dress
Put and the second controlled unit）, clamped or maintained its clamp position to control rod, realize the reliability to control rod and capture.
Now, device B can exit the control to control rod, carry out overhaul of the equipments, after failture evacuation, can send out to device B
Go out control rod clamping order, clipping operation of the device B to control rod corresponding to which is realized, then carries out fault clearance.Fault is clear
After removing, the switch control module of the fault-finding module shearing device B of device A, the electric current that device A is provided is disconnected to device B, extensive
Multiple stream oriented device normal control each to its control rod.
Preferably, as described above, there are two states in present invention connection bus：
The first：First signal is input to second switch control module by the first one-way conduction module and first switch controls mould
Block, secondary signal is input to second switch control module and first switch control module by the second one-way conduction module.Lead to
Cross 2 one-way conduction modules and a connection bus composition communication path.
Preferably, the first one-way conduction module or with one-way conduction module be diode.
Second：First signal is directly inputted to second switch control module, and secondary signal is by being directly inputted to first
Switch control module.One-way conduction module is not provided with, and coupling cock control is directly caused using two independent connection buses
Conducting between module and signal.
When the fault-finding module for detecting signal in this control interval was located in this control interval, then mean that the fault is visited
Surveying module needs to connect the power supply in this control interval, in order to prevent upstream power supply trouble so as to cause to detect this control interval signal
Fault-finding module dead electricity, it is therefore desirable to malfunctioning module carried out arranged in a crossed manner, so avoids upstream and power to cause
Dead electricity risk；Therefore, the power supply of Fisrt fault detection module and the power supply of second control device are consistent, the second fault
The power supply of detection module is consistent with the power supply of first control device.
Preferably, the Fisrt fault detection module includes the first current sensor and a FPGA, the first current sense
Device detects the first signal, controls first switch module after the feedback signal of a FPGA the first current sensor of reception；Described
Two fault detection module include the second current sensor and the 2nd FPGA, and the second current sensor detects the first signal, second
Control second switch module after the feedback signal of FPGA the second current sensor of reception.
Preferably, the first control device and second control device all include that transmitting hook coil current adjusts circuit
Or/and keeping hook coil current to adjust circuit, first controlled unit and the second controlled unit are transmission hook coil
Or/and keep hook coil.
Preferably, the transmission hook coil current adjusts circuit or/and keeps hook coil current to adjust circuit composition
The rod control power cabinet of control control rod.
Preferably, second switch control module or/and first switch control module are controlled audion.
Based on a kind of control method of reliable driving control system, comprise the following steps：
S1：The running status of the first signal is detected using Fisrt fault detection module real-time detection, using the second fault detect mould
The running status of block real-time detection secondary signal；
S2：When the running status of the running status for detecting the first signal and secondary signal is all normal, Fisrt fault detects mould
Block and the second fault detection module do not send control instruction, and first switch control module and second switch control module are in breaking
Open state, first control device directly sends the first signal to the first controlled unit, and second control device is directly controlled to second
Device sends secondary signal, realizes the control to controlled unit；
S3：When the first signal running status is detected for fault, Fisrt fault detection module controls first switch control module
Turn on, then secondary signal is exported to the first controlled unit through first switch control module, and the first controlled unit is controlled by second
Device controls；
S4：When secondary signal running status is detected for fault, the second fault detection module controls second switch control module
Turn on, then the first signal is exported to the second controlled unit by second switch control module, and the second controlled unit is controlled by first
Device controls.
Embodiment 2
Specifically, as shown in Fig. 2 the system is using the first connection bus mode, i.e., using 2 one-way conduction modules and 1
Connection substantially to system connect, this control system method by being verified, in being embodied as, one-way conduction module
Realized using Power Diode Pumped, switch control module is realized using IGBT, and fault detection module is realized by FPGA, current sensor
Realized using Hall element, complete first closing bar control power cabinet in test（Control device fault in the first interval of simulation）,
MG1 the and SG1 loss of power of first set drive mechanism drives, and current feedback signal is transferred to FPGA2 by H1 and H2 sensor,
FPGA2 sends IGBL drive signal and turns on to VT1, VT1, it is achieved that from the second rod control power cabinet to the holding of two sets of drive mechanisms
Hook coil is powered simultaneously, while making two sets of drive mechanisms be controlled the clamping of rod.Whole system response time is less than 150 millis
Second, less than the electromechanical time delay of drive mechanism, it is to avoid the generation of slide bar.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as adopting
The design principle of the present invention, and the change for carrying out non-creativeness work on this basis and making, all should belong to the present invention's
Within protection domain.
Claims (10)
1. a kind of reliable driving control system, it is characterised in that include with lower component,
For exporting the first control device of the first signal；
For exporting the second control device of secondary signal；
Receive the first controlled unit and the second switch control module of the first signal；
Receive the second controlled unit and the first switch control module of secondary signal；
Detect the Fisrt fault detection module of the first signal running status；
When Fisrt fault detection module detects the first signal running status for fault, Fisrt fault detection module control first
Switch control module is turned on, then secondary signal is exported to the first controlled unit through first switch control module；
Second fault detection module of detection secondary signal running status；
When the second fault detection module detects secondary signal running status for fault, the second fault detection module control second
Switch control module is turned on, then the first signal is exported to the second controlled unit by second switch control module.
2. a kind of reliable driving control system according to claim 1, it is characterised in that：First signal is single by first
Second switch control module and first switch control module are input to conduction module, secondary signal passes through the second one-way conduction mould
Block is input to second switch control module and first switch control module.
3. a kind of reliable driving control system that is stated according to claim 2, it is characterised in that：The first one-way conduction module
Or with one-way conduction module be diode.
4. a kind of reliable driving control system according to claim 1, it is characterised in that：First signal is directly inputted to
Second switch control module, secondary signal is by being directly inputted to first switch control module.
5. a kind of reliable driving control system according to claim 1, it is characterised in that：Fisrt fault detection module
Power supply is consistent with the power supply of second control device, the power supply of the second fault detection module and first control device
Power supply consistent.
6. a kind of reliable driving control system according to claim 1, it is characterised in that：The Fisrt fault detects mould
Block includes the first current sensor and a FPGA, and the first current sensor detects the first signal, and a FPGA receives the first electricity
Control first switch module after the feedback signal of flow sensor；Second fault detection module include the second current sensor and
2nd FPGA, the second current sensor detects the first signal, controls after the feedback signal of the 2nd FPGA the second current sensor of reception
Second switch module processed.
7. a kind of reliable driving control system according to claim 1, it is characterised in that：The first control device and
Second control device all includes that transmitting hook coil current adjusts circuit or/and keep hook coil current to adjust circuit, described
First controlled unit and the second controlled unit are transmission hook coil or/and keep hook coil.
8. a kind of reliable driving control system according to claim 7, it is characterised in that：The transmission hook coil electricity
Stream adjusts circuit or/and keeps hook coil current to adjust the rod control power cabinet that circuit constitutes control control rod.
9. a kind of reliable driving control system according to claim 1, it is characterised in that：Second switch control module
Or/and first switch control module is controlled audion.
10. based on a kind of control method of reliable driving control system of any one in claim 1-9, including following step
Suddenly：
S1：The running status of the first signal is detected using Fisrt fault detection module real-time detection, using the second fault detect mould
The running status of block real-time detection secondary signal；
S2：When the running status of the running status for detecting the first signal and secondary signal is all normal, Fisrt fault detects mould
Block and the second fault detection module do not send control instruction, and first switch control module and second switch control module are in breaking
Open state, first control device directly sends the first signal to the first controlled unit, and second control device is directly controlled to second
Device sends secondary signal, realizes the control to controlled unit；
S3：When the first signal running status is detected for fault, Fisrt fault detection module controls first switch control module
Turn on, then secondary signal is exported to the first controlled unit through first switch control module, and the first controlled unit is controlled by second
Device controls；
S4：When secondary signal running status is detected for fault, the second fault detection module controls second switch control module
Turn on, then the first signal is exported to the second controlled unit by second switch control module, and the second controlled unit is controlled by first
Device controls.
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| CN201610946114.4A CN106452203A (en) | 2016-10-26 | 2016-10-26 | Reliable drive control system, and control method thereof |
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| CN114094688A (en) * | 2020-08-24 | 2022-02-25 | 航天科工惯性技术有限公司 | MPPT redundant backup system of solar unmanned aerial vehicle and MPPT switching method |
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Application publication date: 20170222 |