CN106099895A - Arc Suppression Coil Control method, device and arc-extinguishing system - Google Patents
Arc Suppression Coil Control method, device and arc-extinguishing system Download PDFInfo
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- CN106099895A CN106099895A CN201610576948.0A CN201610576948A CN106099895A CN 106099895 A CN106099895 A CN 106099895A CN 201610576948 A CN201610576948 A CN 201610576948A CN 106099895 A CN106099895 A CN 106099895A
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- suppression coil
- arc suppression
- neutral point
- bus
- arc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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Abstract
The invention discloses a kind of Arc Suppression Coil Control method, device and arc-extinguishing system.This arc-extinguishing system includes: N number of grounding transformer, connects one to one with N section bus, and for drawing N number of neutral point from N section bus, wherein, N is greater than the natural number of 2；N number of arc suppression coil, connects one to one with N number of neutral point；And controller, it is connected with N number of arc suppression coil, for regulating the gear of N number of arc suppression coil respectively according to preset algorithm, wherein, the gear that N number of arc suppression coil is respectively used to according to self provides current compensation to corresponding neutral point.By the present invention, the problem solving the loop complexity that in correlation technique, single busbar three segmentation or single busbar four segmentation are carried out extinguishing arc.
Description
Technical field
The present invention relates to power domain, in particular to a kind of Arc Suppression Coil Control method, device and arc-extinguishing system.
Background technology
All low-pressure end is realized through grounding through arc by arc-extinguishing coil automatic tuning complete set of equipments in present stage transformer station.
Arc-extinguishing coil automatic tuning complete set of equipments mainly includes grounding transformer, arc suppression coil, damping resistance case and controller etc..At present
The controller that each producer producing arc-extinguishing coil automatic tuning complete set of equipments is configured all uses a control one or to control two modes,
That is, a controller can realize accessing separate unit or two arc suppression coils, arc suppression coil is realized point row or gear arranged side by side adjusts.
The Load Substation built by three main transformers of Beijing area at present, low pressure 10kV side is frequently with single busbar three segmentation
Or single busbar four section wiring, such wiring construction breaking down or during inspection travel, often occurs needing three extinguishing arcs
The situation of coil paired running, uses the arc-extinguishing coil automatic tuning complete set of equipments of a control one or control two formulas of producer's offer,
Needing to provide three sets one to control a controller uses master slave system to adjust side by side, or uses principal and subordinate side by two set one control two controllers
Formula adjusts side by side, and such implementation not only causes logical circuit complexity arranged side by side loaded down with trivial details, secondary connection difficulty, and can cause
The problems such as equipment redundancy configures, and causes construction investment to improve, O&M inconvenience.
For the problem that the loop that single busbar three segmentation or single busbar four segmentation carry out in correlation technique extinguishing arc is complicated, mesh
Before effective solution is not yet proposed.
Summary of the invention
Present invention is primarily targeted at a kind of Arc Suppression Coil Control method of offer, device and arc-extinguishing system, to solve phase
Single busbar three segmentation or single busbar four segmentation are carried out the problem that the loop of extinguishing arc is complicated by pass technology.
To achieve these goals, according to an aspect of the invention, it is provided a kind of arc-extinguishing system.This system includes: N
Individual grounding transformer, connects one to one with N section bus, and for drawing N number of neutral point from N section bus, wherein, N is greater than 2
Natural number；N number of arc suppression coil, connects one to one with N number of neutral point；And controller, it is connected with N number of arc suppression coil, uses
In regulating the gear of N number of arc suppression coil respectively according to preset algorithm, wherein, N number of arc suppression coil is respectively used to the shelves according to self
Position provides current compensation to corresponding neutral point.
Further, this system also includes: N number of electrical quantity sensor, for detecting the electrical quantity of N number of neutral point respectively,
Wherein, controller is also connected with N number of electrical quantity sensor, for regulating N number of extinguishing arc respectively according to the electrical quantity of N number of neutral point
The gear of coil.
Further, N section bus includes (N-1) individual bus pair, and each bus is to including two sections of mothers adjacent in N section bus
Line, this system also includes: (N-1) individual switch, for control (N-1) individual bus is to being opened or closed respectively, wherein, each bus
To the two sections of buses included at corresponding fanout operation when switching off, and the paired running when corresponding switch Guan Bi, wherein,
Controller is additionally operable to the on off state according to (N-1) individual switch and judges the running status of (N-1) individual bus pair, and according to (N-1)
The running status of individual bus pair and the electrical quantity of N number of neutral point regulate the gear of N number of arc suppression coil respectively.
Further, (N-1) individual switch at least includes a block switch.
Further, N number of electrical quantity sensor includes the first electrical quantity sensor, and N number of neutral point includes the first neutral point,
First electrical quantity sensor and the first neutral point are connected, and the first electrical quantity sensor includes: voltage transformer, for collection
The voltage of one neutral point；And current transformer, for gathering the electric current of the first neutral point.
Further, this system also includes: N number of adjustable damping resistance box, connects one to one with N number of arc suppression coil, with
Controller is connected, for regulating the neutral point displacement voltage of N number of neutral point respectively.
Further, N section bus include the first bus, controller and the first bus by being connected by electric switch, wherein,
When being closed by electric switch, the first bus provides working power to controller.
Further, N section bus includes the first bus, and this system also includes: by electric switch, wherein, and controller and first
Bus is by being connected by electric switch, and the first bus, for when being closed by electric switch, provides working power to controller.
To achieve these goals, according to an aspect of the invention, it is provided a kind of Arc Suppression Coil Control method.The party
Method comprises determining that preset algorithm；And the gear of N number of arc suppression coil is regulated respectively according to preset algorithm, wherein, N is greater than 2
Natural number, N number of arc suppression coil connects one to one with N number of neutral point, and N number of neutral point is respectively the neutrality drawn by N section bus
Point, the gear that N number of arc suppression coil is respectively used to according to self provides current compensation to corresponding neutral point.
Further, the gear regulating N number of arc suppression coil according to preset algorithm respectively includes: judge N section bus respectively
Running status is fanout operation or paired running；If it is judged that the running status having at least two sections of buses in N section bus is also
Row run, and determine main arc suppression coil in the arc suppression coil that the neutral point that the bus of paired running is corresponding is connected；Determine main disappearing
The gear of arc coil；Regulate the gear of main arc suppression coil to the gear determined；And the gear difference according to main arc suppression coil
Regulate in N number of arc suppression coil the gear of arc suppression coil in addition to main arc suppression coil.
To achieve these goals, according to an aspect of the invention, it is provided a kind of Arc Suppression Coil Control device.This dress
Put and comprise determining that unit, be used for determining preset algorithm；And regulation unit, for regulating N number of extinguishing arc respectively according to preset algorithm
The gear of coil, wherein, N is greater than the natural number of 2, and N number of arc suppression coil connects one to one with N number of neutral point, N number of neutral point
Being respectively the neutral point drawn by N section bus, the gear that N number of arc suppression coil is respectively used to according to self carries to corresponding neutral point
For current compensation.
The present invention passes through N number of grounding transformer, connects one to one with N section bus, for from the extraction of N section bus is N number of
Property point, wherein, N is greater than the natural number of 2；N number of arc suppression coil, connects one to one with N number of neutral point；And controller, with N
Individual arc suppression coil is connected, and for regulating the gear of N number of arc suppression coil respectively according to preset algorithm, wherein, N number of arc suppression coil divides
Yong Yu not provide current compensation according to the gear of self to corresponding neutral point, solve in correlation technique single busbar three segmentation
Or single busbar four segmentation carries out the problem that the loop of extinguishing arc is complicated, and then reach to simplify single busbar three segmentation or single busbar four
Segmentation carries out the effect of the circuit connection of extinguishing arc.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of arc-extinguishing system according to a first embodiment of the present invention；
Fig. 2 is the schematic diagram of arc-extinguishing system according to a second embodiment of the present invention；
Fig. 3 is the flow chart of extinguishing arc control method according to embodiments of the present invention；And
Fig. 4 is the schematic diagram of arc extinguishing control device according to embodiments of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order to make those skilled in the art be more fully understood that the application scheme, below in conjunction with in the embodiment of the present application
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present application, it is clear that described embodiment is only
The embodiment of the application part rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of the application protection
Enclose.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so use
Data can exchange in the appropriate case, in order to embodiments herein described herein.Additionally, term " includes " and " tool
Have " and their any deformation, it is intended that cover non-exclusive comprising, such as, contain series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps or the unit clearly listed, but can include the most clear
That list to Chu or for intrinsic other step of these processes, method, product or equipment or unit.
The embodiment provides a kind of arc-extinguishing system.
This arc-extinguishing system includes N number of grounding transformer, N number of arc suppression coil and controller.
N number of grounding transformer connects one to one with N section bus, for drawing N number of neutral point, wherein, N from N section bus
It is greater than the natural number of 2.
N number of arc suppression coil, connects one to one with N number of neutral point.
Controller, is connected with N number of arc suppression coil, for regulating the gear of N number of arc suppression coil respectively according to preset algorithm,
Wherein, the gear that N number of arc suppression coil is respectively used to according to self provides current compensation to corresponding neutral point.
Fig. 1 is the schematic diagram of arc-extinguishing system according to a first embodiment of the present invention.As it is shown in figure 1, this arc-extinguishing system wraps
Include three grounding transformers, three arc suppression coils and controller 50.
Three grounding transformers include grounding transformer 21, grounding transformer 22 and grounding transformer 23, respectively with bus
11, bus 12 and 13 3 sections of buses of bus connect one to one.Grounding transformer is used for drawing neutral point, and grounding transformer 21 draws
Going out the neutral point 31 of bus 11, the neutral point 32 of bus 12 drawn by grounding transformer 22, and bus 13 drawn by grounding transformer 23
Neutral point 33.Arc suppression coil 41, arc suppression coil 42 and arc suppression coil 43 respectively with neutral point 31, neutral point 32 and neutral point 33 1
One corresponding connection.Controller 50 for regulating arc suppression coil 41, arc suppression coil 42 and arc suppression coil 43 respectively according to preset algorithm
Gear.
In the Load Substation that major part is built by three main transformers, low-pressure side is frequently with bus three segmentation or bus four points
The mode of connection of section.This embodiment, as a example by three segmentations, describes the arc-extinguishing system that the present invention provides.
Grounding transformer is called for short ground connection and becomes, and its effect is to draw neutral point to connect arc suppression coil or resistance etc..
Connected one to one with multistage bus by multiple grounding transformers, multistage bus can be drawn the most
Individual neutral point.
One arc suppression coil of the equal adjunction of each neutral point, power system transmission path after grounding through arc,
Current compensation can be provided to neutral point, so that the current value that the current value of ground short circuit point occurs less than electric arc, eliminate electric arc
Phenomenon.
Arc suppression coil can be by controller control, and controller can regulate each arc suppression coil respectively according to preset algorithm
Gear, each arc suppression coil provides the compensation electric current corresponding to gear according to self gear to the neutral point connected.Controller
Preset algorithm can be, according to outside input, the gear of each arc suppression coil is performed regulation, such as, operative, remotely takes
The outside inputs such as the instruction of business device.Or, it is also possible to it is the feedback parameter by collecting, such as, the voltage electricity at neutral point
Stream etc., calculate, according to feedback parameter, the gear that should arrange of arc suppression coil that correspondence connects and regulate arc suppression coil to calculating
Gear.
This embodiment provide arc-extinguishing system, by N number of grounding transformer, connect one to one with N section bus, for from
N section bus draws N number of neutral point, and wherein, N is greater than the natural number of 2；N number of arc suppression coil, with N number of neutral point one_to_one corresponding even
Connect；And controller, it is connected with N number of arc suppression coil, for regulating the gear of N number of arc suppression coil respectively according to preset algorithm,
Wherein, the gear that N number of arc suppression coil is respectively used to according to self provides current compensation to corresponding neutral point, solves relevant skill
Single busbar three segmentation or single busbar four segmentation are carried out the problem that the loop of extinguishing arc is complicated by art, and then has reached to simplify single mother
Line three segmentation or single busbar four segmentation carry out the effect of the circuit connection of extinguishing arc.
As a preferred embodiment of above-described embodiment, this system can also include N number of electrical quantity sensor, N number of electricity
Parameter sensors is for detecting the electrical quantity of N number of neutral point, such as, curtage respectively.Controller also passes with N number of electrical quantity
Sensor is connected, for regulating the gear of N number of arc suppression coil respectively according to the electrical quantity of N number of neutral point.
N section bus is divided into (N-1) individual bus pair, and each bus is to including two sections of buses adjacent in N section bus, adjacent
Two sections of buses can be with paired running.This system can also include (N-1) individual switch, and (N-1) individual switch is for controlling (N-respectively
1) individual bus is to being opened or closed, each bus two sections of buses to including at corresponding fanout operation when switching off, and
Paired running when corresponding switch closes.The controller of this system is additionally operable to the on off state according to (N-1) individual switch and judges (N-
1) running status of individual bus pair, and regulate respectively according to the running status of (N-1) individual bus pair and the electrical quantity of N number of neutral point
The gear of N number of arc suppression coil.Preferably, (N-1) individual switch at least includes a block switch.
N number of electrical quantity sensor includes the first electrical quantity sensor, and N number of neutral point includes the first neutral point, the first electricity ginseng
Number sensor and the first neutral point are connected, and as a example by the first electrical quantity sensor, the first electrical quantity sensor can include electricity
Pressure transformer summation current transformer.Voltage transformer is for gathering the voltage of the first neutral point；Current transformer is for collection the
The electric current of one neutral point.
Preferably, this system can also include N number of adjustable damping resistance box.N number of adjustable damping resistance box and N number of arc blowout wire
Circle connects one to one, and is connected with controller, for regulating the neutral point displacement voltage of N number of neutral point respectively.
Preferably, this system can also include by electric switch.N section bus includes that the first bus, the first bus can be N sections
Any one section of bus in bus.Controller can be with the first bus by being connected by electric switch, when being closed by electric switch,
First bus provides working power to controller.
Preferably, N can be 3 or 4, that is, this embodiment provide arc-extinguishing system can control three arc suppression coils or
Four arc suppression coils.
Fig. 2 is the schematic diagram of arc-extinguishing system according to a second embodiment of the present invention.This embodiment can be as above-mentioned first
The preferred implementation of embodiment, as in figure 2 it is shown, the mode that this system is control three arc suppression coil, arc suppression coil LF1 and ground connection
The neutral point that transformator TM1 is drawn by bus MX1 is connected；Voltage transformer TV1 gathers the neutrality that grounding transformer TM1 draws
The voltage of point；Damping case ZNX1 is connected with arc suppression coil LF1, regulates neutral point displacement voltage according to resistance；Current transformer
CT1 is arranged in damping case ZNX1, for gathering the electric current of the neutral point that grounding transformer TM1 draws；Arc suppression coil LF2 with connect
Ground transformator TM2 is by bus MX2a or bus MX2b (connected mode shown in Fig. 2 is that grounding transformer TM2 connects bus MX2b)
The neutral point drawn is connected；Voltage transformer TV2 gathers the voltage of the neutral point that grounding transformer TM2 draws；Damping case
ZNX2 is connected with arc suppression coil LF2, regulates neutral point displacement voltage according to resistance；Current Transmit 2 is arranged on damping case
In ZNX2, for gathering the electric current of the neutral point that grounding transformer TM2 draws；Arc suppression coil LF3 and grounding transformer TM3 is by mother
The neutral point that line MX3 draws is connected；Voltage transformer TV3 gathers the voltage of the neutral point that grounding transformer TM3 draws；Damping
Case ZNX3 is connected with arc suppression coil LF3, regulates neutral point displacement voltage according to resistance；Current Transmit 3 is arranged on damping
In case ZNX3, for gathering the electric current of the neutral point that grounding transformer TM3 draws；Controller KZ and arc suppression coil LF1, arc blowout wire
Circle LF2 is connected with arc suppression coil LF3, for controlling the gear of three arc suppression coils respectively；Controller KZ also with mutual induction of voltage
Device TV1, TV2, TV3, Current Transmit 1, CT2, CT3, damping case ZNX1, ZNX2, ZNX3 are connected, for mutual according to voltage
The neutral point voltage of sensor measurement, the neutral point current of current transformer measurement and the resistance damping case current calculate,
To determine the gear of three arc suppression coils respectively.Also including in this system switching KG1 and switch KG3, switch KG1 is female when Guan Bi
Line MX1 and bus MX2a paired running, switch KG1 bus MX1 and bus MX2a fanout operation when disconnecting, switch KG2 is closing
Bus MX3 and bus MX2b paired running during conjunction, switch KG2 bus MX3 and bus MX2b fanout operation, controller when disconnecting
KZ is also connected with switch KG1 and switch KG3, according to switch KG1 and the condition adjudgement operation when first three section of bus switching KG3
State.Bus MX2a and bus MX2b is one section of bus, is divided into bus MX2a and two portions of bus MX2b by electric switch KG2
Point, controller KZ is also connected with by electric switch KG2, and by electric switch KG2 when Guan Bi, bus MX2a and bus MX2b is to control
Device KZ provides working power.
The arc-extinguishing system that this embodiment provides can realize the control to three arc suppression coils by a controller.When appointing
Anticipate two sections of adjacent bus paired runnings time, such as, bus MX1 and bus MX2a is arranged side by side, or bus MX3 and bus MX2b is also
During row, controller artificially or be automatically set controlled host object controlled can automatically be given tacit consent to (controlled master from machine by software
Machine and controlled be to determine among the arc suppression coil that two sections of buses of paired running are connected from machine), outside so can reducing
Portion sets controlled main frame and the controlled operation from machine, reduces misuse rate, simplifies O&M, when three sections of equal paired runnings of bus,
To the control mode of arc suppression coil in like manner, can first arrange wherein an arc suppression coil as controlled main frame, remaining arc suppression coil
As controlled from machine.
Specifically, when controller KZ detects that switch KG1 and switch KG3 disconnects, when being closed by electric switch KG2, control
Device KZ judges three sections of bus fanout operations, regulates three according to parameters such as the voltage x current of the neutral point of three sections of buses respectively and disappears
The gear of arc coil, controller KZ is operated in fanout operation pattern；When controller KZ detects switch KG1 and by electric switch KG2
Guan Bi, when switch KG3 disconnects, controller KZ judges bus MX1 and bus MX2a paired running, at arc suppression coil LF1 and disappearing
Arc coil LF2 arranges controlled main frame and controlled from machine, the gear Collaborative Control to arc suppression coil LF1 and arc suppression coil LF2, and
The parameters such as the neutral point voltage electric current according to bus MX3 perform individually regulation to the gear of arc suppression coil LF3；When controller KZ examines
Measuring switch KG3 and closed by electric switch KG2, when switch KG1 disconnects, controller KZ judges bus MX3 and bus MX2b also
Row run, and controller KZ is to the control mode of three arc suppression coils and controlling party when bus MX1 and bus MX2a paired running
Formula is similar, does not repeats them here；When controller KZ detects switch KG1, closed by electric switch KG2 and switch KG3, control
Device KZ judges three sections of bus paired runnings, and controller KZ arranges controlled main frame and controlled from machine in three arc suppression coils, and
The parameters such as the voltage x current according to three neutral points detected perform Collaborative Control to the gear of three arc suppression coils.
Controlled main frame and controlled after machine, first according to controlled main frame is set in Liang Tai and more than two arc suppression coils
The gear of the controlled main frames of parameter determination such as the voltage x current of corresponding neutral point, the gear then fixing controlled main frame is motionless,
The controlled gear from machine is held by the voltage x current value of other neutral point carrying out according to controlled main frame detecting after current compensation
Row regulation.
The system that this embodiment provides can carry out free control to three arc suppression coils, can adjust with principal and subordinate, it is also possible to
Realize the multiple control modes such as control one arc suppression coil, control two arc suppression coils and control three arc suppression coils, outside enormously simplify
Portion connects circuit, optimizes group screen scheme.
Embodiments of the invention additionally provide a kind of extinguishing arc control method.The extinguishing arc controlling party that embodiments of the invention provide
Method can apply in the arc-extinguishing system of the present invention.
Fig. 3 is the flow chart of extinguishing arc control method according to embodiments of the present invention.As it is shown on figure 3, the method includes following
Step:
Step S301, determines preset algorithm.
Step S302, regulates the gear of N number of arc suppression coil respectively according to preset algorithm, and wherein, N is greater than the natural number of 2,
N number of arc suppression coil connects one to one with N number of neutral point, and N number of neutral point is respectively the neutral point drawn by N section bus, N number of disappears
The gear that arc coil is respectively used to according to self provides current compensation to corresponding neutral point.
The extinguishing arc control method that this embodiment provides, is determined by preset algorithm, regulates N number of disappearing according to preset algorithm respectively
The gear of arc coil, solves that single busbar three segmentation or single busbar four segmentation carry out in correlation technique the loop of extinguishing arc is complicated
Problem, and then reached to simplify the effect of the circuit connection that single busbar three segmentation or single busbar four segmentation are carried out extinguishing arc.
Preferably, regulate the gear of N number of arc suppression coil respectively to may include that judge N section bus respectively according to preset algorithm
Running status be fanout operation or paired running；If it is judged that N section bus there is the running status of at least two sections of buses be
Paired running, determines main arc suppression coil in the arc suppression coil that the neutral point that the bus of paired running is corresponding is connected；Determine master
The gear of arc suppression coil；Regulate the gear of main arc suppression coil to the gear determined；And divide according to the gear of main arc suppression coil
Do not regulate in N number of arc suppression coil the gear of arc suppression coil in addition to main arc suppression coil.
It should be noted that can be at such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing
Computer system performs, and, although show logical order in flow charts, but in some cases, can be with not
It is same as the step shown or described by order execution herein.
Embodiments of the invention additionally provide a kind of arc extinguishing control device.It should be noted that the disappearing of the embodiment of the present invention
Arc controls device and may be used for performing the extinguishing arc control method of the present invention.
Fig. 4 is the schematic diagram of arc extinguishing control device according to embodiments of the present invention.As shown in Figure 4, this device includes determining
Unit 100 and regulation unit 200.
Determine that unit 100 is for determining preset algorithm.Regulation unit 200 for regulating N number of disappearing respectively according to preset algorithm
The gear of arc coil, wherein, N is greater than the natural number of 2, and N number of arc suppression coil connects one to one with N number of neutral point, N number of neutrality
Point is respectively the neutral point drawn by N section bus, and N number of arc suppression coil is respectively used to the gear according to self to corresponding neutral point
Current compensation is provided.
The arc extinguishing control device that this embodiment provides, can be arranged on the control of the arc-extinguishing system that the embodiment of the present invention provides
In device.The arc extinguishing control device of this embodiment is determined by unit 100 and determines preset algorithm, and regulation unit 200 is according in advance
Imputation method regulates the gear of N number of arc suppression coil respectively, solves in correlation technique single busbar three segmentation or single busbar four segmentation
Carry out the problem that the loop of extinguishing arc is complicated, and then reached to simplify single busbar three segmentation or single busbar four segmentation are carried out extinguishing arc
The effect of circuit connection.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Calculating device realize, they can concentrate on single calculating device, or be distributed in multiple calculating device and formed
Network on, alternatively, they can with calculate the executable program code of device realize, it is thus possible to by they store
Performed by calculating device in the storage device, or they are fabricated to respectively each integrated circuit modules, or by them
In multiple modules or step be fabricated to single integrated circuit module and realize.So, the present invention be not restricted to any specifically
Hardware and software combines.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. an arc-extinguishing system, it is characterised in that including:
N number of grounding transformer, connects one to one with N section bus, for drawing N number of neutral point, wherein, N from described N section bus
It is greater than the natural number of 2；
N number of arc suppression coil, connects one to one with described N number of neutral point；And
Controller, is connected with described N number of arc suppression coil, for regulating described N number of arc suppression coil respectively according to preset algorithm
Gear, wherein, the gear that described N number of arc suppression coil is respectively used to according to self provides current compensation to corresponding neutral point.
System the most according to claim 1, it is characterised in that described system also includes:
N number of electrical quantity sensor, for detecting the electrical quantity of described N number of neutral point respectively,
Wherein, described controller is also connected with described N number of electrical quantity sensor, for the electricity ginseng according to described N number of neutral point
Number regulates the gear of described N number of arc suppression coil respectively.
System the most according to claim 2, it is characterised in that described N section bus includes (N-1) individual bus pair, Mei Gemu
Line is to including two sections of buses adjacent in described N section bus, and described system also includes:
(N-1) individual switch, for controlling described (N-1) individual bus respectively to being opened or closed, wherein, each bus is to including
Two sections of buses are at corresponding fanout operation when switching off, and the paired running when the switch of described correspondence closes,
Wherein, described controller is additionally operable to described (N-1) the individual bus pair of on off state judgement according to described (N-1) individual switch
Running status, and regulate described respectively according to the running status of described (N-1) individual bus pair and the electrical quantity of described N number of neutral point
The gear of N number of arc suppression coil.
System the most according to claim 3, it is characterised in that at least include that a segmentation is opened in described (N-1) individual switch
Close.
System the most according to claim 2, it is characterised in that described N number of electrical quantity sensor includes that the first electrical quantity passes
Sensor, described N number of neutral point includes that the first neutral point, described first electrical quantity sensor are connected with described first neutral point,
Described first electrical quantity sensor includes:
Voltage transformer, for gathering the voltage of described first neutral point；And
Current transformer, for gathering the electric current of described first neutral point.
System the most according to claim 1, it is characterised in that described system also includes:
N number of adjustable damping resistance box, connects one to one with described N number of arc suppression coil, is connected with described controller, for dividing
Do not regulate the neutral point displacement voltage of described N number of neutral point.
System the most according to claim 1, it is characterised in that described N section bus includes that the first bus, described system also wrap
Include:
By electric switch, wherein, described controller is connected by electric switch by described with described first bus, described first bus
For described closed by electric switch time, to described controller provide working power.
8. an Arc Suppression Coil Control method, it is characterised in that including:
Determine preset algorithm；And
The gear of N number of arc suppression coil is regulated respectively according to described preset algorithm,
Wherein, N is greater than the natural number of 2, and described N number of arc suppression coil connects one to one with N number of neutral point, described N number of neutrality
Point is respectively the neutral point drawn by N section bus, and described N number of arc suppression coil is respectively used to the gear according to self in corresponding
Property point provide current compensation.
Method the most according to claim 8, it is characterised in that regulate the shelves of N number of arc suppression coil according to preset algorithm respectively
Position includes:
The running status judging described N section bus respectively is fanout operation or paired running；
If it is judged that the running status having at least two sections of buses in described N section bus is paired running, the mother of paired running
The arc suppression coil that the neutral point that line is corresponding is connected determines main arc suppression coil；
Determine the gear of described main arc suppression coil；
Regulate the gear of described main arc suppression coil to the gear determined；And
Gear according to described main arc suppression coil regulates disappearing in addition to described main arc suppression coil in described N number of arc suppression coil respectively
The gear of arc coil.
10. an Arc Suppression Coil Control device, it is characterised in that including:
Determine unit, be used for determining preset algorithm；And
Regulation unit, for regulating the gear of N number of arc suppression coil respectively according to described preset algorithm, wherein, N is greater than oneself of 2
So number, described N number of arc suppression coil connects one to one with N number of neutral point, and described N number of neutral point is respectively is drawn by N section bus
Neutral point, described N number of arc suppression coil is respectively used to gear according to self provides current compensation to corresponding neutral point.
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| CN106099895B (en) | 2019-09-10 |
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