CN106159963A - For being pre-charged the Based Intelligent Control protector of synchro switch - Google Patents
For being pre-charged the Based Intelligent Control protector of synchro switch Download PDFInfo
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- CN106159963A CN106159963A CN201510155830.6A CN201510155830A CN106159963A CN 106159963 A CN106159963 A CN 106159963A CN 201510155830 A CN201510155830 A CN 201510155830A CN 106159963 A CN106159963 A CN 106159963A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention provides a kind of Based Intelligent Control protector for being pre-charged synchro switch, including: it is used for receiving line voltage, the synchronizing voltage detection module of output synchronous voltage signal；Control module, it divides the location status information preferable switching point generation control command signal at precharge synchro switch of benefits/mend altogether according to the switch feedback signal of position switch module and synchronous voltage signal and S1 switching order, S2D/Y switching, S3Y；Protection module, it divides the location status information generation coil drive command signal of benefits/mend altogether according to synchronous voltage signal, control command signal and S1 switching order, S2D/Y switching, S3Y；Coil actuator module, its receiving coil drive command signal, produce the switching driving electric current thus control to be pre-charged synchro switch；Running status display module with display switch.The Based Intelligent Control protector switching of the application is accurate, it is achieved flexibly, anti-interference is good, can drive permanent-magnetic switching coil and solenoid winding.
Description
Technical field
The present invention relates to the Based Intelligent Control protector of the synchro switch used in power system, more particularly to for capacitor
The Based Intelligent Control protector of the precharge synchro switch of load.
Background technology
Precharge synchro switch application recharge technique, can only be pre-charged capacitive load, it is not possible to inductance, motor
Load precharge.In the technology of switched capacitor, precharge synchro switch is compared conventional synchronous switch and is had many notable
Superiority, such as: control accuracy requires low, and switching is effective, does not has a back-to-back rush of current, quick action,
Economize on electricity, can realize non-impact current switching etc. with common triple-pole switch.
But, if there is switching mistake, precharge synchro switch can cause fault much more serious than common synchronization switch.
Conventional synchronous switchs from being opened to again close the time of a few minutes that needs, the during this period DC voltage on capacitor
Substantially giving out light, switch main contacts is solely subjected to ac grid voltage.Normal condition is the zero point Guan Bi at line voltage, if
Misoperation occurs, and the worst situation is the peak dot Guan Bi at line voltage, and this state is such as the worst-status of regular tap
Guan Bi, have a rush of current, but for the few dash current of number of times, system can also be born.For precharge switch,
Normal condition be switch voltage and voltage change ratio be zero point Guan Bi, i.e. line voltage peak dot close, if send out
Raw misoperation, the worst situation is to close at another peak dot, and now switch bears the twice of electrical network crest voltage, electric current
Impact is extremely big, and the harm to system is the most serious.Therefore, control and the protection of precharge synchro switch are the heaviest
Want, it is necessary to ensure that do not close in deathtrap.Although having been developed for the much control for synchro switch both at home and abroad
Device, but, the most it is not specifically designed for being pre-charged the effective control protective unit of synchro switch.
Generally, for the connected mode of Capacitor banks, being total to of the such as connection of D (triangle) type or Y (star) type
Mend or point benefit of Y (star) type ground connection, owing to the connected mode of Capacitor banks is different, corresponding preferable switching point
Position changes, and need to separately design corresponding on-off control protector.This existence can not be according to the connection side of Capacitor banks
The problem that formula selects control mode automatically, intelligently.
Generally, synchro switch is permanent-magnetic switching, and precharge switch both can use permanent-magnetic switching, it would however also be possible to employ electricity
Magnetic switch.Permanent-magnetic switching and the version of electromagnetic switch and type of drive are the most different, how to realize permanent-magnetic switching and electricity
The Based Intelligent Control protection of magnetic switch is also urgent problem.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of Based Intelligent Control protector for precharge switch.This Shen
Based Intelligent Control protector please can adjust the switching point of switch according to ideal zone and quasi-ideal zone, reaches accurately to throw
Cutting, protection puts in place, does not produce the technique effect of misoperation.
Further, the application control that protector can switch according to S2D/Y, S3Y divides benefits/location status of common benefit
Information, can make a switch operate in and mend dividing of Capacitor banks wye connection/mend altogether or in the different circuit of D type connection,
Facilitate user.User only need to according to the needs of the connected mode (such as star Y, triangle D connection) of Capacitor banks,
The requirement of compensation way (divide and mend or mend altogether), conversion S2D/Y switches, S3Y divides benefit/mend corresponding position, intelligence altogether
The switching that can control the intelligence that protector is thereby capable of corresponding connection runs control protection.
The invention provides a kind of Based Intelligent Control protector for being pre-charged synchro switch.Described Based Intelligent Control protector bag
Including: synchronizing voltage detection module (3), described synchronizing voltage detection module (3) is used for receiving line voltage, and output is same
Step voltage signal；Control module (1), described control module (1) is believed according to the switch feedback of position switch module (4)
Number and described synchronous voltage signal and S1 switching order, S2D/Y switching, S3Y divide the location status of benefits/mend altogether to believe
Breath generates control coil drive command signal；Protection module (2), described protection module (2) according to described synchronous voltage signal,
Described control coil drive command signal and described S1 switching order, described S2D/Y switching, described S3Y divide benefits/common
The location status information mended generates output winding drive command signal；Coil actuator module (5), described coil actuator
Module (5) receives described output winding drive command signal, produces the driving electric current of driving coil (1) thus controls pre-
The switching of charging synchro switch (K1)；And running status display module (6), described running status display module (6)
Receive the signal that described control module (1) exports, the running status of display switch.
Preferably, described Based Intelligent Control protector also includes that communication module (7), described communication module (7) are used for transmitting
The running state information of described precharge synchro switch (K1), and anti-from external reception adjustment and setting switching time location
The parameter of feedback.
Further, described precharge synchro switch (K1) can be three single-pole switch, a two-photo pole switch and one
In single-pole switch, a triple-pole switch one.
Further, described control module (1) sends institute at the preferable point that puts into of described precharge synchro switch (K1)
State control coil drive command, and according to the switch feedback information of described position switch module (4), determine described synchronization
Switch (K1) is in ideal area and quasi-ideal area during switching, and described control module (1) is not adjusted；Accurate preferable
During presumptive area switching outside district, the switching moment is adjusted in ideal zone.
Further, described ideal area is the voltage on described precharge synchro switch (K1) and voltage change ratio is simultaneously
Zero point ± region of 1ms；Described quasi-ideal area is the left side-2ms～-1ms of described ideal area, the district of right side 1ms～2ms
Territory.
Further, described protection module (2) accepts and keeps the described control in described preferable switching point ± 5ms region
Coil drive command signal.
Further, described protection module (2), according to described S1 switching order, accepts or refuses described control coil and drive
The coil of dynamic command signal is opened or coil close commands.
Further, described control module (1) switches according to described S2D/Y, described S3Y divides benefit/it is total to the position mended
Status information operates in mends/mend altogether or in D type connection circuit, described protection module (2) root dividing of Capacitor banks wye connection
Benefit/common location status information mended is divided to operate in Capacitor banks wye connection according to described S2D/Y switching, described S3Y
Divide and mend/mend altogether or in D type connection circuit.
Further, described coil actuator module (5) could be for the driver of permanent-magnetic switching coil or for electricity
The driver of magnetic switch coil.
Further, when described coil actuator module (5) is permanent-magnetic switching coil actuator, S1 switching is occurring
Order 30～60ms in accept described control coil drive command, more than 30～60ms refusal accept described control coil drive
Dynamic order.
The Advantageous Effects of the present invention at least includes: Based Intelligent Control protector can be exactly at the switch of precharge switch
Voltage and voltage change ratio are zero point switching；Both it is suitable for the driver of permanent magnetism coil, also is adapted for the driver of solenoid；
It is suitable for the different connected modes of Capacitor banks.
Accompanying drawing explanation
The composition schematic diagram of the Based Intelligent Control protector of Fig. 1: the present invention；
The schematic flow sheet that the control module of the Based Intelligent Control protector of Fig. 2: the present invention performs；
The control module of the Based Intelligent Control protector of Fig. 3: the present invention adjusts the flow chart in switching moment；
Voltage on the switch contact of Fig. 4: the present invention and the schematic diagram in adjustment switching interval；
The logic flow schematic diagram of the protection module of the Based Intelligent Control protector of Fig. 5: the present invention；
The switch of Fig. 6: the present invention puts into order and performs interval schematic diagram；
The switch excision order of Fig. 7: the present invention performs interval schematic diagram.
Detailed description of the invention
Below, by accompanying drawing 1-Fig. 7, implementing of the present invention is described.
Fig. 1 is the composition schematic diagram of an embodiment of the Based Intelligent Control protector for being pre-charged synchro switch.Intelligence control
Protector processed includes: synchronizing voltage detection module (3), and its reception line voltage is as input, and exports synchronizing voltage letter
Number；Position feedback module (4), it is connected with precharge synchro switch (K1), it is thus achieved that the position feedback letter of switch K1
Number, it is sent to control module (1)；Control module (1), it receives S1 switching order, and S2D/Y switching, S3Y divide
Mend/be total to the location status information and synchronous voltage signal and position feed back signal mended, export control command；Protection module
(2), it receives S1 switching order, and S2D/Y switches, S3Y divides benefit/it is total to the location status information and control command mended,
Output winding drive command；Coil actuator module 5, its receiving coil drive command, produce the electric current driving coil W,
Thus drive synchro switch (K).
It is same that Based Intelligent Control protector also includes that communication module (7), described communication module (7) are used for transmitting described precharge
The running state information of step switch (K1), and adjust and set the parameter of switching time location feedback from external reception.
Control module (1) divides benefit/common location status information mended to can determine that Capacitor banks according to S2D/Y switching, S3Y
It is point benefit/benefit or the connection of D type altogether of Y type connection, and selects corresponding control strategy accordingly.Detailed control process
Will be described below.
Protection module (2) divides benefit/common location status information mended to can determine that Capacitor banks according to S2D/Y switching, S3Y
It is point benefit/benefit or the connection of D type altogether of Y type connection, and selects corresponding Preservation tactics accordingly.About protection module (2)
Will be described in more detail below.
Based Intelligent Control protector may also include display module (6), and display module (6) receives what control module (1) exported
Signal, can the running status of display switch.
The Based Intelligent Control protector of the application is mended for dividing of Capacitor banks wye connection/is mended altogether or D type connection, stirs
Switch S2D/Y switches, S3Y divides benefit/mend corresponding location status, control module (1) and protection module (2) altogether
Enter different branches, it is provided that the preferable switching point of Capacitor banks corresponding connection structure.
Fig. 2 is the Based Intelligent Control protector control module schematic flow sheet in a certain profit concrete structure connection.First in step
202, initialize.Then in step 203, it is judged that whether the synchronized switching moment arrives, if YES, then before
Enter step 204；If NO, then return step 203 to proceed to judge.In step 204, it may be judged whether close
The most whether conjunction order, have S1 to put into order, if it has, then after step 205, time delay to preferably input moment,
Determine whether to switch closed feedback in step 206, if it is not, send switch closure command in step 207, return
Return step 203, wait that the next synchronized moment arrives.If judging that switch feedback Guan Bi is yes in step 206,
Then carry out switch Guan Bi counting in step 208, then adjust in step 209 and put into the moment, afterwards in step 310, sentence
Disconnect the state closed, and show.Return step 203 afterwards, wait that the next synchronized moment arrives.If
Judge do not have close commands in step 204, then flow process proceeds to step 311, and time delay is to preferably excising the moment；Exist afterwards
Step 312 determines whether that feedback opened by switch, continues waiting for next synchronization point arrive if it has, then return step 203
Come, if it is not, send switch in step 313 to open order.
Fig. 3 is the flow chart that Based Intelligent Control protector adjusts the switching moment, and this process can be performed by control module (1).
First in step 301, adjust input and start.In step 302, it is judged that whether the synchronized voltage correction moment arrives,
If it is, proceed to step 303；Without arrival, then return step 302 and proceed to judge.In step 303,
Judge that the input moment, whether in ideal zone, if in ideal zone, then proceeds to step 304, is not adjusted,
Number of times is recalled in ideal zone sidelights quasi-to left and right simultaneously；If step 303 judges not in ideal zone, then proceed to step
305, it is judged that whether put into the moment in quasi-ideal zone, if, it is not adjusted, on the left of step 306, right
Number of times is recalled in side quasi-ideal zone sidelights；If it was not then in step 307, it is judged that whether memory number of times exceedes threshold value, as
Fruit is beyond threshold value, then in step 308, the switching moment is adjusted to ideal zone, and left side, right side are remembered number of times again
Position is zero.If step 307 judges to be not above threshold value, then return in step 309.
Ideal area above-mentioned and quasi-ideal area can be according to identified below.Here, it would be desirable to area definition is the electricity on switch
Pressure and voltage change ratio are the presumptive area of the vicinity of zero simultaneously, the region of preferably ± 1ms, interval as shown in Figure 4
T2～t3；Quasi-ideal area is defined as on the left of ideal area and the presumptive area on right side, preferably-2ms～-1ms on the left of ideal area
Region, t1～t2 as shown in Figure 4, on the right side of ideal area the region of 1ms～2ms, t3～t4 as shown in Figure 4.As
Fruit switch outside quasi-ideal zone ± 2ms in (such as t1-2ms～t1 and t2～t2+2ms) put into, simultaneously in quasi-reason
Think that the input number of times in region, without departing from defined threshold, does not the most adjust switching point；Beyond defined threshold, then need to throw
Cutting the moment is adjusted to ideal zone, and left and right sides puts into number of times and is adjusted to 0 simultaneously, and the subregion restarting switching point adjusts.
Fig. 5 is the schematic flow sheet of Based Intelligent Control protector protection module.Protection module (2) guarantees its coil exported
Drive command does not haves the possibility that interference maloperation is made.Protection module (2) receives S1 and puts into order, puts at S1 and refers to
Make initially allows interval, t0～t5 as shown in Figure 4, accepts and keep the control command that control module (1) exports
Signal, sends coil drive order, in the initial interval allowed beyond interval, does not accept what control module (1) exported
Control command, does not send coil drive order, to ensure switching safety.Obtaining input or the excision of S1 switching order
That orders is instantaneous, and when initial permission is interval, t0～t5 as shown in Figure 4, protects module (2) output winding
Drive command.In the initial interval allowed beyond interval, the control of protection module (2) block/prevention control module (1)
System order.
Fig. 6 puts into order for switch and performs interval graph, and Fig. 7 performs interval graph for switch excision order.S1 switching order is believed
Number put into order and excision order is given for a long time, the coil of permanent-magnetic switching forward and reverse electric has only to little
A period of time, protection module (2) guarantees to occur S1 switching command signal to switch Guan Bi, S1 when stop position
Switching command signal switchs the miscarrying opened and cuts phenomenon when make position, simultaneously in the instantaneous Guan Bi of permanent-magnetic switching, instantaneous beat
The mistake of action again will not occur after having started.
Above-mentioned control module (1) can use such as single-chip microcomputer or DSP to realize, and above-mentioned protection mould (2) can use
The hardware circuits such as such as CPLD, FPGA, TTL, MOS circuit realize, but are not limited thereto.According to religion herein
Leading, those skilled in the art are it will be appreciated that realize software or the hardware implementation mode of above-mentioned each assembly function, and these realize
Mode is all in scope of the present application.
Present disclosure has been made detailed explanation by only certain embodiments of the present invention, but, the application not limits to
In this, the changes that any person skilled in the art can think of all should fall into the protection domain of the application.
Claims (10)
1. the Based Intelligent Control protector being used for being pre-charged synchro switch, it is characterised in that: described intelligence control
Protector processed includes:
Synchronizing voltage detection module (3), described synchronizing voltage detection module (3) is used for receiving line voltage,
Output synchronous voltage signal；
Control module (1), described control module (1) is believed according to the switch feedback of position switch module (4)
Number and described synchronous voltage signal and S1 switching order, S2 D/Y switching, S3 Y divide the position of the benefit of benefits/altogether
Status information generates control coil drive command signal；
Protection module (2), described protection module (2) is driven according to described synchronous voltage signal, described control coil
Dynamic command signal and described S1 switching order, described S2 D/Y switching, described S3 Y divide benefit/common position mended
Configuration state information generates output winding drive command signal；
Coil actuator module (5), described coil actuator module (5) receives described output winding and drives
Command signal, produces the throwing driving the driving electric current of coil (1) thus control to be pre-charged synchro switch (K1)
Cut；
Running status display module (6), described running status display module (6) receives described control module
(1) signal exported, the running status of display switch.
Based Intelligent Control protector the most according to claim 1, it is characterised in that: also include communication module
(7), described communication module (7) is used for transmitting the running status letter of described precharge synchro switch (K1)
Breath, and adjust and set the parameter of switching time location feedback from external reception.
Based Intelligent Control protector the most according to claim 1, it is characterised in that: described precharge synchronizes
Switch (K1) can be that three single-pole switch, a two-photo pole switch and single-pole switch, three poles are opened
One of the Central Shanxi Plain.
Based Intelligent Control protector the most according to claim 1, it is characterised in that: described control module (1)
The preferable point that puts into described precharge synchro switch (K1) sends described control coil drive command, and depends on
According to the switch feedback information of described position switch module (4), determine that described synchro switch (K1) is in ideal area
With in quasi-ideal area during switching, described control module (1) is not adjusted；Making a reservation for outside quasi-ideal area
During the switching of region, the switching moment is adjusted in ideal zone.
Based Intelligent Control protector the most according to claim 4, it is characterised in that: described ideal area is institute
State the voltage in precharge synchro switch (K1) and voltage change ratio simultaneously for zero point ± region of 1ms；Institute
State left side-2ms～-1ms, the region of right side 1ms～2ms that quasi-ideal area is described ideal area.
Based Intelligent Control protector the most according to any one of claim 1 to 5, it is characterised in that: institute
The described control coil stated in protecting module (2) to accept and keeping described preferable switching point ± 5ms region drives
Command signal.
Based Intelligent Control protector the most according to any one of claim 1 to 5, it is characterised in that: institute
State and protect module (2) according to described S1 switching order, accept or refuse described control coil drive command letter
Number coil open or coil close commands.
Based Intelligent Control protector the most according to claim 1, it is characterised in that: described control module (1)
Benefit/common location status information mended is divided to operate in Capacitor banks Y according to described S2 D/Y switching, described S3 Y
Point the mending/mend altogether or in D type connection circuit of type connection, described protection module (2) switches according to described S2 D/Y,
Described S3 Y divides the location status information of benefit/mend altogether to operate in point mending/mend altogether or D of Capacitor banks wye connection
In type connection circuit.
Based Intelligent Control protector the most according to claim 1, it is characterised in that: described coil actuator
Module (5) could be for the driver of permanent-magnetic switching coil or for the driver of solenoid winding.
Based Intelligent Control protector the most according to claim 9, it is characterised in that: when described coil drive
When device module (5) is permanent-magnetic switching coil actuator, accept in the 30～60ms of S1 switching order occur
Described control coil drive command, more than 30～60ms refusal accept described control coil drive command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155830.6A CN106159963A (en) | 2015-04-03 | 2015-04-03 | For being pre-charged the Based Intelligent Control protector of synchro switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155830.6A CN106159963A (en) | 2015-04-03 | 2015-04-03 | For being pre-charged the Based Intelligent Control protector of synchro switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106159963A true CN106159963A (en) | 2016-11-23 |
Family
ID=57337519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510155830.6A Pending CN106159963A (en) | 2015-04-03 | 2015-04-03 | For being pre-charged the Based Intelligent Control protector of synchro switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106159963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302221A (en) * | 2016-04-14 | 2017-10-27 | 北京馨容纵横科技发展有限公司 | A kind of simplifying for switched capacitor group is pre-charged simultaneous switching circuit |
| CN108807047A (en) * | 2018-06-22 | 2018-11-13 | 河南华盛隆源电气有限公司 | A kind of permanent-magnetic switching drive control method and system based on H bridges |
-
2015
- 2015-04-03 CN CN201510155830.6A patent/CN106159963A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302221A (en) * | 2016-04-14 | 2017-10-27 | 北京馨容纵横科技发展有限公司 | A kind of simplifying for switched capacitor group is pre-charged simultaneous switching circuit |
| CN108807047A (en) * | 2018-06-22 | 2018-11-13 | 河南华盛隆源电气有限公司 | A kind of permanent-magnetic switching drive control method and system based on H bridges |
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Application publication date: 20161123 |