CN201282340Y - Magnetic valve type controllable inductor type SVC dynamic reactive compensator - Google Patents
Magnetic valve type controllable inductor type SVC dynamic reactive compensator Download PDFInfo
- Publication number
- CN201282340Y CN201282340Y CNU2008201357020U CN200820135702U CN201282340Y CN 201282340 Y CN201282340 Y CN 201282340Y CN U2008201357020 U CNU2008201357020 U CN U2008201357020U CN 200820135702 U CN200820135702 U CN 200820135702U CN 201282340 Y CN201282340 Y CN 201282340Y
- Authority
- CN
- China
- Prior art keywords
- branch
- branch road
- mcr
- current transformer
- reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Y02E40/10—Flexible AC transmission systems [FACTS]
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses a MCR-type (magnetic-valve controllable reactor) SVC dynamic reactive compensation device comprising capacitors, a fixed capacitor group branch, namely, an FC branch, and an adjustable reactor branch, wherein, the FC branch comprises a current transformer, a fixed inductor and a capacitor, and the adjustable reactor branch consists of a current transformer and an adjustable reactor. The utility model is characterized in that the adjustable reactor is classified as a magnetic-valve controllable reactor (MCR), a main electrical connecting wire is formed by connecting a power supply system bus with a compensation bus in a power supplying manner through a compensation outlet switch; an MCR branch and the FC branch are connected with the compensation bus through corresponding isolation switches; and in addition, a secondary control loop is provided, which consists of an MCR branch control and protection system, and an FC branch protection system. The utility model is applicable to dynamic reactive power adjustment of a grid, and has the advantages of simple structure, low manufacturing and operating costs, convenient operation and maintenance, and better performance, stability and reliability.
Description
Technical field
The utility model belongs to a kind of electrical network dynamic reactive-load adjusting device.The electrical network dynamic reactive-load adjusting device of special magnetic valve type controllable reactor type.
Background technology
At present, there is a grade switched capacitor compensation equipment to realize follow load change dynamics compensating power, but its compensation characteristic and unsmooth, compensation precision is not high yet.Therefore, such compensation equipment is applicable to that mainly load variations is more steady relatively, the less demanding occasion of compensation precision.For load fluctuation big use electric loading, have grade switched capacitor compensation equipment to follow effect relatively poor, can not realize totally continuous dynamic compensation.TCR type SVC is through constantly development, become the dynamic passive compensation equipment of main application, solved a large amount of dynamic passive compensation problems, it is fast with response speed, and technology maturation and controllable silicon (SCR) device reliability relatively is higher than the disconnected thyristor (GTO) of switch, power transistor (IGBT, IGCT) etc.But, even passed through 20 for many years development, still can't break away from the inherent shortcoming that self is difficult to overcome, hindered the paces of its wide popularization and application, conclude and get up to exist following deficiency: 1, reliability, stability are not high; The harmonic pollution that produces when 2, moving is serious; 3, equipment complexity, the cost height; 4, bulky, increase construction cost; 5, maintenance workload is big, the operating cost height.
The utility model content
The purpose of this utility model is in order to solve the problems of the technologies described above, to propose a kind of magnetic valve type controllable reactor type SVC dynamic reactive compensation device.It is better more stable that this installs every performance, make and operating cost low.
The purpose of this utility model is achieved through the following technical solutions: magnetic valve type controllable reactor type electric network reactive-load adjusting device, be provided with capacitor and constant reactance device group branch road is FC branch road and Regulatable reactor branch road, FC props up route current transformer and fixed inductor and capacitor group and constitutes; Regulatable reactor props up the route current transformer and Regulatable reactor constitutes, it is characterized in that: described Regulatable reactor is magnetic valve type controllable reactor MCR, described Regulatable reactor branch road is the MCR branch road, main electrical scheme is connected with the compensation bussed supply by compensating out wiretap by the electric power system bus, MCR branch road and the FC branch road isolating switch by separately with compensate bus and be connected; Be provided with secondary control loop in addition, form by MCR branch road control protection system, FC branch protection system and control power-supply system;
MCR branch road control protection system is made of control guard block, exciting part and monitor component, and described control guard block is provided with cpu controller, data sampling unit, communication unit, data input cell DI, data output unit DO, optic electric interface master cpu and respective peripheral circuit; Described monitor component is provided with upper monitoring machine, display unit, printer; Described upper monitoring machine is connected with the communication unit of control guard block; Described excitation part is made up of optic electric interface circuit, impulse circuit, driving amplifying circuit and controllable silicon; This optic electric interface circuit is connected with described optic electric interface; Connect load switch current transformer d, connect the electric power system bus voltage transformer a with is connected the current transformer c that compensates bus and is connected with the data acquisition unit signal that the MCR branch road is controlled the control guard block of protection system; Current transformer c is connected with the impulse circuit signal of exciting part with voltage transformer b;
FC branch protection system is provided with data acquisition unit, CPU and protection output unit; The current transformer a, the b that connect electric power system bus and compensation bus are connected with described data acquisition unit signal with the discharge coil that is connected the capacitor group.
Its operation principle is: FC props up the road direction system fixedly capacitive reactive power is provided, and the MCR branch road is then pressed system loading and changed the unnecessary capacitive reactive power of absorption, and system's perception and capacitive reactive power are tended to balance.FC branch road and MCR branch road can be shared a cover outlet cabinet, the isolating switch that each branch road is provided with for maintenance or when inactive with system's isolation.The system busbar voltage transformer is used for the detection system bus voltage value; The compensation bus-bar potential transformer is used for detecting the compensation bus voltage signal, makes the trigger impulse synchronizing signal for the MCR branch road and uses.Each branch road all is equipped with the current transformer that overcurrent protection detects usefulness.When the protection fault occurring, the control protection system at first sends the separating brake instruction by protection output to compensating out wiretap, and then uploads protection, warning message by communication interface to monitor portion.
The utlity model has following advantage: 1, reliability, stability height; The harmonic pollution that seldom produces when 2, moving; 3, device structure is comparatively simple, and cost is low; 4, volume is less, saves construction cost; 5, maintenance work is easy, and operating cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described: embodiment: magnetic valve type controllable reactor type electric network reactive-load adjusting device, be provided with capacitor and constant reactance device group branch road is FC branch road and Regulatable reactor branch road, FC props up route current transformer and fixed inductor and capacitor group and constitutes; Regulatable reactor props up the route current transformer and Regulatable reactor constitutes, it is characterized in that: described Regulatable reactor is magnetic valve type controllable reactor MCR, described Regulatable reactor branch road is the MCR branch road, main electrical scheme is connected with the compensation bussed supply by compensating out wiretap by the electric power system bus, MCR branch road and the FC branch road isolating switch by separately with compensate bus and be connected.Be provided with secondary control loop in addition, form by MCR branch road control protection system, FC branch protection system and control power-supply system.
It is the Microcomputer Protection unit of core with the 80C196 chip that FC branch protection system is one, and its inside mainly is made up of circuit such as data acquisition, CPU and protection outputs; By gathering FC branch road and compensation outlet cabinet electric current and FC branch road residual voltage (also can gather capacitor protection signals such as unsymmetrical current, differential pressure), realize defencive functions such as one section of FC branch road overcurrent, two sections of overcurrents, one section of compensation outlet cabinet overcurrent, two sections of overcurrents, unbalance voltage (residual voltage), unsymmetrical current by various protection algorithms.When the protection fault occurring, the Microcomputer Protection unit at first sends the separating brake instruction by protection output to compensating out wiretap, and then uploads protection, warning message by communication interfaces such as RS232, RS485 and CAN buses to monitor portion.
MCR branch road control protection system is made of control guard block, exciting part and monitor component:
The control guard block is the many cpu controllers based on the 80C196 chip, is made up of data acquisition CPU, communication CPU, master cpu and respective peripheral circuit respectively, realizes data sharing by many mouthfuls of RAM each other; Control algolithm and protection logic realize by master cpu, and system parameters (voltage, electric current, meritorious, idle, power factor or the like) is gathered, calculating is realized by data acquisition CPU; The CPU that is responsible for communication specially is used for and upper monitoring machine and other supervisory control system swap datas, and communication interfaces such as RS232, RS485 and CAN bus are provided, and is convenient to realize unattended operation and Long-distance Control.System has reliability, the stability of height, and fast operation, can realize complicated control algolithm.Its roughly operation principle be: at first, collect system busbar voltage, load current and MCR branch current analog signals, through A/D conversion and calculate instantaneous values such as system power factor, meritorious and reactive power, be stored among the many mouthfuls of RAM by data acquisition CPU; The master cpu follow procedure requires to read desired parameters from RAM; Calculating through control algolithm draws controllable silicon trigger angle set-point; Be converted to light signal through electrical-optical conversion interface again, be sent to excitation part in the MCR field control case by optical fiber.Secondly, the excitation part is converted to photosignal with trigger impulse and silicon controlled working condition again and returns to control protection part, in order to realize the status monitoring to the excitation part.The automatic operational mode of control protector is judged and protection output is partly born by DI, DO among the figure.On control algolithm, can realize phase-splitting control, three-phase control, flickering improvement, power factor controlling, idle control, constant voltage control by the difference requirement.
The excitation part is made up of optic electric interface circuit, trigger impulse circuit, pulse amplifying circuit and controllable silicon; After the optic electric interface circuit receives the given signal of light, generate the analog input signal through opto-electronic conversion, form the trigger impulse of control thyristor operating angle, signal being carried out shaping amplifies again, the silicon controlled conducting state is carried out phase shifting control, realize the purpose of dynamic adjustments MCR branch road perception reactive current.
Monitor portion is made of upper monitoring machine, man-machine display interface and other corresponding terminal devices; The upper monitoring machine can be selected industrial computer, industrial flat computer and touch-screen.By communication interfaces such as RS232, RS485 and CAN buses, with control protector the communication CPU element be connected, upload or under be loaded in various data.The upper monitoring running software has good man computer interface in Windows XP operating system, peripheral hardwares such as configuration keyboard, mouse, printer.Realized that system parameter setting, running state real-time monitoring, operation trend show, protect warning message and various functions such as processing, the inquiry of historical data and operation report printing.Can (comprise voltage, current instantaneous value, voltage, current effective value, active power to the quality of power supply of system, reactive power, active electrical degree, idle electric degree, power factor, electric current 1～41 subharmonic, voltage 1～41 subharmonic, voltage flicker, voltage, current imbalance, electric voltage dropping, overtension, voltage are lost etc.) carry out real-time, continuous monitoring.
Claims (1)
1, a kind of magnetic valve type controllable reactor type SVC dynamic reactive compensation device is provided with capacitor and constant reactance device group branch road is FC branch road and Regulatable reactor branch road, and FC props up route current transformer, fixed inductor and capacitor group and constitutes; Regulatable reactor props up the route current transformer and Regulatable reactor constitutes, it is characterized in that: described Regulatable reactor is magnetic valve type controllable reactor MCR, described Regulatable reactor branch road is the MCR branch road, main electrical scheme is connected with the compensation bussed supply by compensating out wiretap by the electric power system bus, MCR branch road and the FC branch road isolating switch by separately with compensate bus and be connected; Be provided with secondary control loop in addition, this secondary control loop is made up of MCR branch road control protection system, FC branch protection system and control power-supply system;
MCR branch road control protection system is made of control guard block, exciting part and monitor component, and described control guard block is provided with cpu controller, data sampling unit, communication unit, data input cell DI, data output unit DO, optic electric interface master cpu and respective peripheral circuit; Described monitor component is provided with upper monitoring machine, display unit, printer; Described upper monitoring machine is connected with the communication unit of control guard block; Described excitation part is made up of optic electric interface circuit, impulse circuit, driving amplifying circuit and controllable silicon; This optic electric interface circuit is connected with described optic electric interface; Connect load switch current transformer d, connect the electric power system bus voltage transformer a with is connected the current transformer c that compensates bus and is connected with the data acquisition unit signal that the MCR branch road is controlled the control guard block of protection system; Current transformer c is connected with the impulse circuit signal of exciting part with voltage transformer b;
FC branch protection system is provided with data acquisition unit, CPU and protection output unit; Connecting the current transformer a of electric power system bus, the current transformer b of connection compensation bus is connected with described data acquisition unit signal with the discharge coil that is connected the capacitor group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201357020U CN201282340Y (en) | 2008-10-07 | 2008-10-07 | Magnetic valve type controllable inductor type SVC dynamic reactive compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201357020U CN201282340Y (en) | 2008-10-07 | 2008-10-07 | Magnetic valve type controllable inductor type SVC dynamic reactive compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201282340Y true CN201282340Y (en) | 2009-07-29 |
Family
ID=40929206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201357020U Expired - Fee Related CN201282340Y (en) | 2008-10-07 | 2008-10-07 | Magnetic valve type controllable inductor type SVC dynamic reactive compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201282340Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138274A (en) * | 2013-01-23 | 2013-06-05 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically-controlled reactor |
| CN103248058A (en) * | 2013-05-02 | 2013-08-14 | 中国船舶重工集团公司第七一二研究所 | Magnetically-controlled reactor control system |
| CN103364672A (en) * | 2013-08-07 | 2013-10-23 | 国家电网公司 | Condition monitoring system and method of magnetic control reactor-type dynamic reactive power compensation equipment |
| CN104269865A (en) * | 2013-01-23 | 2015-01-07 | 苏州工业园区和顺电气股份有限公司 | Magnetic controllable reactor with anti-interference function |
-
2008
- 2008-10-07 CN CNU2008201357020U patent/CN201282340Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138274A (en) * | 2013-01-23 | 2013-06-05 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically-controlled reactor |
| CN103138274B (en) * | 2013-01-23 | 2014-12-10 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically-controlled reactor |
| CN104269865A (en) * | 2013-01-23 | 2015-01-07 | 苏州工业园区和顺电气股份有限公司 | Magnetic controllable reactor with anti-interference function |
| CN103248058A (en) * | 2013-05-02 | 2013-08-14 | 中国船舶重工集团公司第七一二研究所 | Magnetically-controlled reactor control system |
| CN103248058B (en) * | 2013-05-02 | 2015-11-04 | 中国船舶重工集团公司第七一二研究所 | A kind of Magnetically-controlreactor reactor control system |
| CN103364672A (en) * | 2013-08-07 | 2013-10-23 | 国家电网公司 | Condition monitoring system and method of magnetic control reactor-type dynamic reactive power compensation equipment |
| CN103364672B (en) * | 2013-08-07 | 2015-07-29 | 国家电网公司 | The condition monitoring system of magnet controlled reactor type dynamic reactive compensation device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106229977B (en) | Circuit electric energy quality optimizing device based on WIFI communication, method and system | |
| CN101697419B (en) | Integrated controlled system and integrated controlled method for dynamic reactive power compensation based on touch screen, PLC and DSP | |
| CN202737471U (en) | Network compound electric energy quality adjusting device | |
| CN201282340Y (en) | Magnetic valve type controllable inductor type SVC dynamic reactive compensator | |
| CN201430442Y (en) | Active power filter device | |
| CN109274109A (en) | A kind of comprehensive power quality optimization system | |
| CN206908302U (en) | Active electric power out-of-balance current compensation device | |
| CN201303251Y (en) | Parallel hybrid active filter with reactive power compensation based on phase controlled switch technique | |
| CN206658053U (en) | A kind of mixed type idle compensating control | |
| CN204668960U (en) | A kind of intelligent modularized three-phase imbalance dynamic reactive compensation device | |
| CN202333813U (en) | Multifunctional electric energy quality regulator based on voltage type inverter | |
| CN101577432A (en) | Reactive power compensation method and control device adopting same | |
| CN202103431U (en) | MCR (Magnetically Controlled Reactor)-type static var compensator (SVC) | |
| CN204696691U (en) | A kind of modular harmonic wave control and reactive power compensator | |
| CN206894251U (en) | A kind of low-voltage distribution network platform region hybrid reactive power compensation device | |
| CN201656480U (en) | Active filter and reactive power compensation device | |
| CN202651795U (en) | High-voltage dynamic reactive power compensator | |
| CN107069764A (en) | A kind of mixed type idle compensating control and application method | |
| CN205986150U (en) | Circuit electric energy quality optimization device and system based on WIFI communication | |
| CN204243752U (en) | Intelligent arc suppression controller, the arc suppression coil device of compatible turn-adjusting and capacitor tuning type | |
| CN108462186A (en) | Hybrid reactive power compensation device | |
| CN202856368U (en) | Reactive compensation filter | |
| CN207910479U (en) | A kind of distribution network var compensation device | |
| CN105720586A (en) | Power-saving device capable of improving tail end power factor of capacitance compensation cabinet | |
| CN201946945U (en) | Liquid crystal display intelligent control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20171007 |