CN110515320A - Drive control method, drive system, processing system and storage medium - Google Patents
Drive control method, drive system, processing system and storage medium Download PDFInfo
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- CN110515320A CN110515320A CN201810494140.7A CN201810494140A CN110515320A CN 110515320 A CN110515320 A CN 110515320A CN 201810494140 A CN201810494140 A CN 201810494140A CN 110515320 A CN110515320 A CN 110515320A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The present invention provides a kind of drive control methods, suitable for including the drive system of driver, bus and multiple electric motors, wherein each motor is in the first direct-connected connection status of bus, with one of the second connection status of driver connection or off state state, drive control method includes: to detect the mechanical energy output of running motor, and wherein mechanical energy output is the parameter obtained according to the output power and continuous operating time of motor；Judge whether the mechanical energy output of running motor meets or exceeds a preset threshold；If the mechanical energy output of a certain running motor meets or exceeds a preset threshold, the running motor of this is switched into off state, wherein running motor refers to the motor in the first connection status or the second connection status.In addition, the present invention also provides corresponding drive system, processing system and storage mediums.
Description
Technical field
The present invention relates to industrial control field more particularly to a kind of drive control method, drive system, processing system and deposit
Storage media.
Background technique
More pump controls are widely used in many fields such as constant pressure water supply system.It include more electricity in multiple pump
Machine, these motors may be coupled to power supply buses (i.e. in power frequency operation state), (are in by driver/transducer drive
Converting operation state) or be in standby.
Fig. 1 shows an example of multi-pump control system.In this example, several motors are parallel, and driver 1 is used as
The starter and controller of motor.For example, motor M2 is controlled by driver 1 when motor M1 is connected to bus, motor M3 and M4
In standby.If M2 reaches maximum operational speed but still be unable to satisfy the aggregate demand of system, motor M2 will be switched to directly
It is connected to bus and motor M3 will be started by driver 1.In addition, if motor M2 has reached the minimum speed of service but there is still a need for reductions
One motor, then switch to motor M2 standby mode and switch to motor M1 from direct-connected bus and controlled by driver 1.
In the prior art, some motors (such as motor M1 in the example of Fig. 1) can be run for a long time with maximum speed, and one
A little motors are in standby (such as motor M3 and M4 in the example of Fig. 1) or within most times with lower speed
Degree operation (such as motor M2 in the example of such as Fig. 1).In this way, workload and the runing time meeting of every motor (or pump)
Quite imbalance, such as the operating load of motor M1 are much larger than motor M3 and M4, so that it is more serious to will lead to part motor fret
And it is easier to break down.
Summary of the invention
In view of the above problems in the prior art, the invention proposes a kind of drive control methods, drive system, processing system
And storage medium.Technical solution of the present invention can be balanced by the monitoring of output power and continuous operating time to motor
The workload between each motor in drive system comprising more motors.In particular, drive control method of the invention and
Drive system can select to need motor to be started according to the output power and continuous operating time of motor, each in balance system
Load between platform motor improves system stability, reduces the synthesis use cost of user.In addition, method of the invention can be with
Driver/frequency converter control logic or control program are updated to realize, are changed without the framework to existing drive system
Become, application prospect is extensive.
According to an aspect of the invention, there is provided a kind of drive control method, it is suitable for including driver, bus and more
The drive system of platform motor, wherein each motor is in the first direct-connected connection status of the bus, with the driver
One of second connection status of connection or off state state, the drive control method include:
Detect running motor mechanical energy output, wherein the mechanical energy output be according to motor output power and
The parameter that continuous operating time obtains；
Judge whether the mechanical energy output of the running motor meets or exceeds a preset threshold；
It, will be in this operation if the mechanical energy output of a certain running motor meets or exceeds a preset threshold
Motor switch to off state,
Wherein, the running motor refers to the motor in first connection status or the second connection status.
According to one embodiment of present invention, in above-mentioned drive control method, the mechanical energy height output is operation
In motor output power and its continuous operating time product.
According to one embodiment of present invention, in above-mentioned drive control method, the continuous operating time is with motor
The last time starting is time to count.
According to one embodiment of present invention, above-mentioned by the running motor of this in above-mentioned drive control method
The step of switching to off state further comprises:
Judge that the running motor of this is in first connection status or the second connection status；
If will work as while the running motor of this is switched to off state in the first connection status
The preceding motor for being in the second connection status switches to the first connection status, and a motor in an off state is switched to
Two connection status；
If being in the second connection status, the running motor of this is only switched into off state, and will be at one
The second connection status is switched in the motor of off state.
Therefore, the control mode in the embodiment can be excellent under the premise of guaranteeing remains unchanged operation number of motors
The motor of converting operation state is first switched into power frequency state, then the motor newly started is switched into frequency conversion state by driver.
Motor, which is directly accessed bus, will lead to biggish rush of current, therefore the embodiment can make the switching of all associated motors
More smooth, reliable, the impact for also making whole system suffered in handoff procedure is smaller.
According to one embodiment of present invention, in above-mentioned drive control method, further comprise:
While the mechanical energy output for detecting running motor, the accumulative fortune of each motor is persistently added up and recorded
Row time and the aggregate demand for detecting drive system；
When the aggregate demand of the drive system rises to the general power greater than all running motors, second will be in
The motor of connection status switches to the first connection status and accumulated running time in motor in an off state is the smallest
One motor switches to the second connection status.When the embodiment can make the accumulative operation of each motor in drive system
Between as close possible to so that the operational reliability of whole system is promoted.
According to one embodiment of present invention, in above-mentioned drive control method, further comprise:
While the mechanical energy output for detecting running motor, the accumulative fortune of each motor is persistently added up and recorded
Row time and the aggregate demand for detecting drive system；
When the aggregate demand of the drive system deteriorates to less than the general power of all motors for being in the first connection status,
An accumulated running time maximum motor in running motor is switched into off state.The program, which can be reduced, newly to be opened
Rush of current suffered by dynamic motor.
According to one embodiment of present invention, in above-mentioned drive control method, it is above-mentioned will be in running motor
A step of accumulated running time maximum motor switches to off state further comprises:
Judge that this accumulated running time maximum motor is in first connection status or the second connection status；
If being in the first connection status, this accumulated running time maximum motor is only switched into off state.
If being in the second connection status, this accumulated running time maximum motor is being switched into off state
Meanwhile the second connection status is switched to by accumulated running time in the motor for being currently at the first connection status the smallest one.
According to one embodiment of present invention, in above-mentioned drive control method, when the running motor includes
Only have one to be in the second connection status, and remaining running motor when at least two motors, in the running motor
It is in the first connection status.
According to another aspect of the present invention, a kind of drive system is provided, comprising: driver, bus and multiple electric motors,
In each motor be in the first direct-connected connection status of the bus, with the second connection status of driver connection or
One of off state state,
Wherein, the driver detects the mechanical energy output of running motor, and the mechanical energy output is according to motor
Output power and the obtained parameter of continuous operating time；
Wherein, the driver judges whether the mechanical energy output of the running motor meets or exceeds a default threshold
Value, if the mechanical energy output of a certain running motor meets or exceeds a preset threshold, by the running electricity of this
Machine-cut shifts to off state, and the running motor refers to the electricity in first connection status or the second connection status
Machine.
According to another aspect of the invention, a kind of processing system is provided, comprising:
One or more processors；
Memory；And
One or more programs are stored in the memory and are configured as being executed by one or more of processors,
One or more of programs include the instruction for executing drive control method as discussed above.
In accordance with a further aspect of the present invention, a kind of storage medium is provided, one or more programs are stored with, it is one
Or multiple programs include instruction, described instruction by data processing system when being executed, so that the data processing system executes such as
Drive control method discussed above.
It should be appreciated that the general description and the following detailed description more than present invention be all it is exemplary and illustrative,
And it is intended that the present invention as claimed in claim provides further explanation.
Detailed description of the invention
It is to provide further understanding of the invention including attached drawing, they are included and constitute part of this application,
Attached drawing shows the embodiment of the present invention, and plays the role of explaining the principle of the invention together with this specification.In attached drawing:
Fig. 1 shows an example of multi-pump control system.
Fig. 2 shows the flow charts of one embodiment of drive control method according to the present invention.
Fig. 3 shows the flow chart of another embodiment of drive control method according to the present invention.
Specific embodiment
The embodiment of the present invention is described with detailed reference to attached drawing now.Now with detailed reference to preferred implementation of the invention
Example, its example is shown in the drawings.In the case of any possible, phase will be indicated using identical label in all the appended drawings
Same or similar part.In addition, although term used in the present invention is selected from public term, this
Some terms mentioned in description of the invention may be that applicant is judged to carry out selection as his or her, and detailed meanings are at this
Illustrate in the relevant portion of the description of text.Furthermore, it is desirable that not only by used actual terms, and be also to by each
Meaning that term is contained understands the present invention.
Discuss basic principle and preferred embodiment of the invention in more detail with reference to attached drawing.Fig. 2 shows according to this hair
One embodiment of bright drive control method.The drive control method is suitable for including driver, bus and multiple electric motors
Drive system, such as drive system shown in FIG. 1, in the drive system each motor be in the bus it is direct-connected the
One connection status (being in power frequency operation), the second connection status (frequency conversion fortune driven by driver with driver connection
Row) or one of off state (standby) state.
Drive control method of the invention can balance the workload between each motor in above-mentioned drive system,
Mainly comprise the steps that the machine for detecting running motor (i.e. the motor in the first connection status or the second connection status)
Tool can export, and wherein mechanical energy output is the parameter (step S1) obtained according to the output power and continuous operating time of motor；
Judge whether the mechanical energy output of running motor meets or exceeds a preset threshold (step S2), if in a certain operation
Motor mechanical energy output meet or exceed a preset threshold, then by the running motor of this switch to off state (step
Rapid S3)；If not up to above-mentioned preset threshold keeps current operating status (step S4).
Above-mentioned drive control method can be balanced by monitoring and using the mechanical energy output of motor comprising more motors
The workload between each motor in drive system.In particular, drive control method of the invention and drive system can be with
It is each in balance system according to the motor that the output power of motor and continuous operating time selection need to start and need to turn off
Load between platform motor improves system stability, reduces the synthesis use cost of user.The drive control method can update
Driver/frequency converter control logic controls program to realize, is changed without the framework to existing drive system, because
This can be applied to existing various multi-pump control systems.
Mechanical energy height output in above-mentioned steps S2 is the output power and its continuous operating time of running motor
Product.To realize that step S2, driver can persistently record continuous operating time t and output power the P (P=of every motor
T*n/9550).Due to the torque T of motor and square (n of speed2) proportional, and cube (n of output power P and speed3) at
Ratio, therefore output power P can be calculated according to following formula:
P=k*n3
Wherein, T be the output torque (N.m) of motor, n be motor speed (r/min), P be motor output power (kW),
T is that the continuous operating time (h) of motor, k are and the related coefficient of pump.Above-mentioned continuous operating time is opened with motor the last time
It moves as time to count.Finally, mechanical energy exports E (kJ)=P*t, the preset threshold of mechanical energy output E can be set.In this way, can
To turn off the motor when the output of the mechanical energy of a certain running motor equals or exceeds the preset threshold.
In further embodiment as shown in Figure 3, while turning off the motor, it can also judge in this operation
Motor be in the first connection status or the second connection status (step S3-1).If being in the first connection status,
While the running motor of this is switched to off state, the motor for being currently at the second connection status is switched to first
Connection status, and a motor in an off state is switched into the second connection status (step S3-2)；If being in second
The running motor of this is then only switched to off state (step S3-3) by connection status.Generally, in drive system, when
When running motor includes at least two motors, only one is in the second connection status, and remaining in running motor
Running motor is in the first connection status.In other words, a generally only motor is by driver driving (converting operation).
Therefore, the control mode in the embodiment can be under the premise of guaranteeing remains unchanged operation number of motors, preferentially by frequency conversion
The motor of operating status switches to power frequency state, then the motor newly started is switched to frequency conversion state by driver.Motor is straight
Access bus will lead to biggish rush of current, therefore the embodiment can make the switching of all associated motors more flat
Suitable, reliable, the impact for also making whole system suffered in handoff procedure is smaller.
On the other hand, in order to which preferably by load, fifty-fifty each motor, the present invention can also further consider each
The accumulated running time of platform motor, the accumulated running time are, for example, accumulated running time recorded in whole life cycle.
According to one embodiment, drive control method of the invention can also be defeated in the mechanical energy for detecting running motor
While out, persistently adds up and record the accumulated running time of each motor and detect the aggregate demand of drive system.
On the one hand, it when the aggregate demand of drive system rises to the general power greater than all running motors, will be in
The motor of second connection status switch to the first connection status and by the accumulated running time in motor in an off state most
A small motor switches to the second connection status.
On the other hand, when the aggregate demand of drive system deteriorates to less than the total work of all motors for being in the first connection status
When rate, the accumulated running time maximum motor in running motor is switched into off state.
It is appreciated that the embodiment can make the accumulated running time of each motor in drive system connect as far as possible
Closely, so that the operational reliability of whole system is promoted.
Further, the above-mentioned accumulated running time maximum motor by running motor in the embodiment
The step of switching to off state can also include:
Judge that this accumulated running time maximum motor is in the first connection status or the second connection status；
If being in the first connection status, this accumulated running time maximum motor is only switched into off state；
It, will while this accumulated running time maximum motor is switched to off state if being in the second connection status
It is currently at accumulated running time in the motor of the first connection status the smallest one and switches to the second connection status.Institute as above
It states, the program can reduce rush of current suffered by the motor newly started.
In addition, each embodiment of the invention can pass through the data processor by processing system such as computer execution
To realize.Obviously, data processor constitutes the present invention.In addition, being commonly stored data processing in one storage medium
Program is by directly reading out storage medium or the storage equipment by program being installed or being copied to processing system for program
It is executed in (such as hard disk and/or memory).Therefore, such storage medium also constitutes the present invention.Storage medium can be used any
The recording mode of type, such as paper storage medium (such as paper tape), magnetic storage medium (such as floppy disk, hard disk, flash memory), light are deposited
Storage media (such as CD-ROM), magnetic-optical storage medium (such as MO) etc..
Therefore, the invention also discloses a kind of non-volatile memory mediums, wherein it is stored with data processor, the data
Processing routine is used to execute any example of the above method of the present invention.
In addition, method and step of the invention in addition to can be realized with data processor, can also be realized by hardware,
For example, can be by logic gate, switch, specific integrated circuit (ASIC), programmable logic controller (PLC) and embedding microcontroller etc. Lai real
It is existing.Therefore this hardware that the method for the present invention may be implemented also may be constructed the present invention.
To sum up, it is (mostly electric to improve more pumps for drive control method, drive system, processing system and storage medium of the invention
Machine) system stability under application scenarios and service life.In particular, drive control method of the invention and drive system can bases
Output power and the continuous operating time selection of motor need motor to be started, negative between each motor in balance system
Lotus improves system stability, reduces the synthesis use cost of user.In addition, method of the invention can update driver/frequency conversion
The control logic of device controls program to realize, is changed without the framework to existing drive system, application prospect is wide
It is general.
Those skilled in the art can be obvious, the above exemplary embodiments of the invention can be carry out various modifications and modification and
Without departing from the spirit and scope of the present invention.Accordingly, it is intended to which present invention covering is made to fall in the appended claims and its equivalence techniques
Modifications of the present invention and modification in aspects.
Claims (11)
1. a kind of drive control method, suitable for including the drive system of driver, bus and multiple electric motors, wherein each electricity
Machine is in the first direct-connected connection status of the bus, in the second connection status of driver connection or off state
A kind of state, which is characterized in that the drive control method includes:
The mechanical energy output of running motor is detected, wherein mechanical energy output is according to the output power of motor and continuous
The parameter that runing time obtains；
Judge whether the mechanical energy output of the running motor meets or exceeds a preset threshold；
If the mechanical energy output of a certain running motor meets or exceeds a preset threshold, by the running electricity of this
Machine-cut shifts to off state,
Wherein, the running motor refers to the motor in first connection status or the second connection status.
2. drive control method as described in claim 1, which is characterized in that the mechanical energy height output is running motor
Output power and its continuous operating time product.
3. drive control method as claimed in claim 2, which is characterized in that the continuous operating time is with motor the last time
Starting is time to count.
4. drive control method as described in claim 1, which is characterized in that above-mentioned that the running motor of this is switched to pass
The step of disconnected state, further comprises:
Judge that the running motor of this is in first connection status or the second connection status；
If will currently locate while the running motor of this is switched to off state in the first connection status
The first connection status is switched in the motor of the second connection status, and a motor in an off state is switched into the second company
Connect state；
If being in the second connection status, the running motor of this is only switched into off state, and by one in pass
The motor of disconnected state switches to the second connection status.
5. drive control method as described in claim 1, which is characterized in that further comprise:
While the mechanical energy output for detecting running motor, when persistently adding up and recording the accumulative operation of each motor
Between and detect the aggregate demand of drive system；
It, will be in the second connection when the aggregate demand of the drive system rises to the general power greater than all running motors
The motor of state switches to the first connection status and accumulated running time in motor in an off state is one the smallest
Motor switches to the second connection status.
6. drive control method as described in claim 1, which is characterized in that further comprise:
While the mechanical energy output for detecting running motor, when persistently adding up and recording the accumulative operation of each motor
Between and detect the aggregate demand of drive system；
When the aggregate demand of the drive system deteriorates to less than the general power of all motors for being in the first connection status, will transport
The maximum motor of the accumulated running time in motor in row switches to off state.
7. drive control method as claimed in claim 6, which is characterized in that the above-mentioned accumulative operation by running motor
A step of time maximum motor switches to off state further comprises:
Judge that this accumulated running time maximum motor is in first connection status or the second connection status；
If being in the first connection status, this accumulated running time maximum motor is only switched into off state.
If being in the second connection status, this accumulated running time maximum motor is being switched into the same of off state
When, the second connection status is switched to by accumulated running time in the motor for being currently at the first connection status the smallest one.
8. drive control method as described in claim 1, which is characterized in that when the running motor includes at least two
Only have one to be in the second connection status when motor, in the running motor, and remaining running motor is in the
One connection status.
9. a kind of drive system characterized by comprising driver, bus and multiple electric motors, wherein each motor is in same
The first direct-connected connection status of the bus, the second connection status or one of off state shape with driver connection
State,
Wherein, the driver detects the mechanical energy output of running motor, and the mechanical energy output is according to the defeated of motor
The parameter that power and continuous operating time obtain out；
Wherein, the driver judges whether the mechanical energy output of the running motor meets or exceeds a preset threshold,
If the mechanical energy output of a certain running motor meets or exceeds a preset threshold, the running motor of this is cut
Off state is shifted to, the running motor refers to the motor in first connection status or the second connection status.
10. a kind of processing system characterized by comprising
One or more processors；
Memory；And
One or more programs are stored in the memory and are configured as being executed by one or more of processors, described
One or more programs include that the instruction of drive control method described in any one of 1-8 is required for perform claim.
11. a kind of storage medium, is stored with one or more programs, one or more of programs include instruction, described instruction
When being executed by data processing system, so that the data processing system executes such as drive of any of claims 1-8
Flowing control method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494140.7A CN110515320A (en) | 2018-05-22 | 2018-05-22 | Drive control method, drive system, processing system and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494140.7A CN110515320A (en) | 2018-05-22 | 2018-05-22 | Drive control method, drive system, processing system and storage medium |
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Cited By (2)
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| CN111273707A (en) * | 2020-01-21 | 2020-06-12 | 深圳市雷赛软件技术有限公司 | Cross belt sorting machine, cross belt sorting trolley and control method thereof |
| CN114634005A (en) * | 2022-03-31 | 2022-06-17 | 国能神东煤炭集团有限责任公司 | Drive control method and system for belt conveyor |
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