CN202995455U - Wind power station static VAR compensator SVC controller detection system - Google Patents
Wind power station static VAR compensator SVC controller detection system Download PDFInfo
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- CN202995455U CN202995455U CN 201320012769 CN201320012769U CN202995455U CN 202995455 U CN202995455 U CN 202995455U CN 201320012769 CN201320012769 CN 201320012769 CN 201320012769 U CN201320012769 U CN 201320012769U CN 202995455 U CN202995455 U CN 202995455U
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Abstract
An embodiment of the utility model provides a wind power station static VAR compensator SVC controller detection system comprising a station static VAR compensator SVC controller, a photoelectric converter and a real time digital simulation instrument RTDS, wherein the station static VAR compensator SVC controller in the wind power station static VAR compensator SVC controller detection system is connected with the real time digital simulation instrument RTDS through the photoelectric converter, and therefore a closed loop control system is formed. The technological effects realized by the embodiment of the wind power station static VAR compensator SVC controller detection system are that a performance test and a parameter test which are aimed at a digital controller module in the SVC controller can be effectively carried out, hidden defects of the SVC controller of a manufacturer are difficult to be found on site and the hidden defects of the SVC controller of the manufacturer can be detected conveniently by the wind power station static VAR compensator SVC controller detection system, and the wind power station static VAR compensator SVC controller detection system can be applied to carrying out model confirmation of the SVC controller suitable for electric power system machine stabilization analysis calculation..
Description
Technical field
The utility model relates to technical field of power systems, relates in particular to a kind of wind energy turbine set static reactive SVC Setup Controller detection system.
Background technology
As the important means that improves quality of voltage, reduction system losses and raising system voltage maintenance level, the SVC reactive power compensation technology has been widely used in transmission system through the development of many decades.Yet on the one hand, the SVC reactive power compensation technology is of a great variety, the dissimilar equipment of different manufacturers its realize principle and steering logic widely different, relevant industry standard is not perfect; On the other hand, the development of being incorporated into the power networks along with large-scale wind power, the easy fluctuation of wind farm grid-connected point voltage and power, but the control of wind energy turbine set dynamic reactive fails to cause enough attention with respect to traditional thermal power plant, and these have all significantly increased the difficulty that line voltage is controlled.In recent years, all once occured both at home and abroad repeatedly seriously to restrict the generating capacity of wind energy turbine set because of voltage blower fan large tracts of land off-grid accident out of control.
Above-mentioned situation shows, is the demand that adapts to the wind energy turbine set reactive power/voltage control, and the Performance Detection that is necessary to carry out wind energy turbine set SVC reactive power compensator is with the performance of the angle standard wind energy turbine set dynamic reactive compensation device of slave net coordinated operation.
SVC (Static VAR Compensator) is a kind of static passive compensation device, is controlled the switching reactor and capacitor forms by thyristor, and because thyristor is very rapid for the control signal reaction, and the break-make number of times also can be unrestricted.Typical static passive compensation device is comprised of primary equipment and secondary control system.
(1) SVC primary equipment: in SVC primary equipment connecting system, capacitor provides fixing capacitive reactive power Qc, by controlling the Trigger Angle of thyristor, and then controlled the electric current that compensation reactor passes through, thereby determined the size of the perceptual idle QTCR of compensation reactor output.The major parameter of SVC primary system comprises: perceptual branch type, perceptual branch road configuration capacity, fixed condenser branch road configuration capacity etc.
(2) SVC secondary control system: a general TCR type SVC secondary control system is mainly by forming with lower module: measuring system, realize controlling and the Measurement accuracy of protecting associated voltage, electric current and power signal; Constant voltage or permanent power governor realize controlling the adjustment of dynamic perfromance; The trigger pulse device changes into the susceptance of regulator output by a nonlinear transformation Trigger Angle of reality; Synchro system, the purpose of synchro system are the reference pulses of generation and system voltage fundametal compoment synchronised; Electric current permanent speed regulation Ksl relates to the stable state V-I characteristic of SVC, guarantees the stability of SVC operation.
In addition, a perfect SVC secondary control system also may possess following relevant complementary control function: the susceptance regulator makes the idle output power of SVC turn back to predefined value thereby be used for changing voltage reference value; The low-voltage scheme provides a kind of steering logic, is used in the situation that serious low-voltage locking SVC; The secondary side overvoltage limiter guarantees that the low-pressure side voltage of SVC coupling transformation is in degree of depth capacitive and under the inoperative abnormal condition of voltage regulator, is no more than the ultimate value of design at SVC.The overcurrent limiting device of TCR, during high voltage, for example during system's removal of load, the electric current of restricted T CR is in case stop loss bad thyristor.The balance of TCR is controlled, in 2 subharmonic voltages distortion when larger, monitor and restricted T CR reactor in the DC current size.
Static passive compensation device external characteristics site test comprises the contents such as performance test under continuous range of operation test, voltage control mode, the survey of bus reactive power flow control model performance, voltage step response test, the test of fixed condenser branch road switching, auxiliary protection control function.Because this site test fundamental purpose is to obtain the output external characteristic of SVC, can't detect the model parameter of SVC controller, verify the rationality of its design link, so this technology has certain limitation.In addition, the site test standard is having testing requirements aspect the dynamic property of SVC and resonance problems, yet limited by situ part test condition and test method, usually is difficult to carry out correlation test.
Along with the large-scale wind power unit is connected to the grid, wind-powered electricity generation manifests day by day on the impact of power network safety operation.Since 2011, the extensive off-grid accident of a lot of wind-powered electricity generation units has occured in China.Static passive compensation device (SVC) dynamic response characteristic does not satisfy the requirement of correlation technique rules, be cause the major reason of LVRT Capability of Wind Turbine Generator by rear high voltage off-grid it
The utility model content
The utility model embodiment provides a kind of wind energy turbine set static reactive SVC Setup Controller detection system, to detect the performance of static reactive SVC controller.
In order to reach above-mentioned technical purpose, the utility model embodiment provides a kind of wind energy turbine set static reactive SVC Setup Controller detection system, described wind energy turbine set static reactive SVC Setup Controller detection system comprises: static reactive SVC controller, photoelectric commutator and real-timedigital simulation instrument RTDS, wherein, static reactive SVC controller in described wind energy turbine set static reactive SVC Setup Controller detection system, be connected with real-timedigital simulation instrument RTDS by photoelectric commutator, to form closed-loop control system.
Optionally, in the utility model one embodiment, described real-timedigital simulation instrument RTDS comprises: optical fiber converting digital input GTDI card, after being used for light pulse signal that described real-timedigital simulation instrument RTDS receives the output of SVC controller and converting 0～5V dc level signal to through photoelectric commutator, by the described optical fiber converting digital input GTDI card in described real-timedigital simulation instrument RTDS, the described 0～5V dc level signal that receives is converted to the digital controlled signal of " 0 " and " 1 ".
technique scheme has following beneficial effect: because adopt described wind energy turbine set static reactive SVC Setup Controller detection system to comprise: static reactive SVC controller, photoelectric commutator and real-timedigital simulation instrument RTDS, wherein, static reactive SVC controller in described wind energy turbine set static reactive SVC Setup Controller detection system, be connected with real-timedigital simulation instrument RTDS by photoelectric commutator, to form the technological means of closed-loop control system, so reached following technique effect: can be effectively for the digitial controller module in the SVC controller, carry out performance test and parameter testing, can detect easily on-the-spot indiscoverable the concealing defects of the SVC of producer controller, can be used for simultaneously carrying out the SVC controller model that is applicable to electric system machine stability analysis calculating use confirms.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that a kind of wind energy turbine set static reactive of the utility model embodiment SVC Setup Controller detection system forms structural representation;
Fig. 2 is that a kind of wind energy turbine set static reactive of the utility model application example SVC Setup Controller detection system forms structural representation;
To be the utility model application example SVC controller control model contrastive test principle schematic with SVC after the RTDS system is connected to Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, for a kind of wind energy turbine set static reactive of the utility model embodiment SVC Setup Controller detection system forms structural representation, described wind energy turbine set static reactive SVC Setup Controller detection system comprises: SVC controller 11, photoelectric commutator 12 and RTDS13, wherein, SVC controller 11 in described wind energy turbine set static reactive SVC Setup Controller detection system, be connected with RTDS13 by photoelectric commutator 12, to form closed-loop control system.
Optionally, as shown in Figure 2, for a kind of wind energy turbine set static reactive of the utility model application example SVC Setup Controller detection system forms structural representation, described instrument RTDS13 comprises: GTDI card 131, after being used for light pulse signal that described RTDS13 receives 11 outputs of SVC controller and converting 0～5V dc level signal to through photoelectric commutator 12, by the described GTDI card 131 in described RTDS13, the described 0～5V dc level signal that receives is converted to the digital controlled signal of " 0 " and " 1 ".Described digital controlled signal can send to controlled thyristor model 132.
the utility model technique scheme has following beneficial effect: because adopt described wind energy turbine set static reactive SVC Setup Controller detection system to comprise: static reactive SVC controller, photoelectric commutator and real-timedigital simulation instrument RTDS, wherein, static reactive SVC controller in described wind energy turbine set static reactive SVC Setup Controller detection system, be connected with real-timedigital simulation instrument RTDS by photoelectric commutator, to form the technological means of closed-loop control system, so reached following technique effect: can be effectively for the digitial controller module in the SVC controller, carry out performance test and parameter testing, can detect easily on-the-spot indiscoverable the concealing defects of the SVC of producer controller, can be used for simultaneously carrying out the SVC controller model that is applicable to electric system machine stability analysis calculating use confirms.
The main body that the utility model embodiment SVC relates to the net Performance Detection is the digitial controller part of SVC; In test, the input analog amount of SVC controller is from RTDS, mainly contain wind park main transformer high side voltage secondary singal from TV (voltage transformer (VT)), wind park main transformer low-pressure side voltage secondary singal, from the TA(current transformer) wind park main transformer high voltage side current secondary singal, wind park main transformer low-pressure side electric current secondary singal, wind park 35kV side TCR (thyristor controlled reactor, thyristor-controlled reactor) angle in the electric current secondary singal; The SVC controller needs inside output TCR thyristor triggering impulse signal through No. six photoelectric commutator outputs and RTDS(Real Time Digital Simulator, real-timedigital simulation instrument) be connected, just can form closed-loop control system.
By the typical wind park connecting system model that the RTDS system consists of, wind park (comprising the equivalent machine of typical double-fed, fixed compensation capacitor device group FC, thyristor-controlled reactor TCR, station service load) is linked into the valve systems such as 220kV through main transformer, the equivalent transmission line of electricity of 220kV.Be provided with three short dots of K1-K3 in the RTDS analogue system, can in wind park main transformer low-pressure side, wind park main transformer high-pressure side and a 220kV transmission line of electricity distant place, Short-circuit Working Condition be set according to the test needs.
The analog quantity of being exported to the SVC controller by RTDS is all TV/TA two sub-values, line voltagerating 100V, the specified 1A of line current, and in model, the no-load voltage ratio of TV/TA can be set according to concrete test needs.
As shown in Figure 3, control model contrastive test principle schematic for the utility model application example SVC controller with SVC after the RTDS system is connected, wherein, PT is photoelectric commutator.The light pulse signal of six passages of SVC controller output is to photoelectric commutator, photoelectric commutator converts thereof into 0～5V dc level signal, and transfer to GTDI(optical fiber converting digital input in RTDS, Gigabit Transceiver Digital Input) card.0～5V dc level signal that the GTDI card will receive converts the digital controlled signal of " 0 " and " 1 " to, wherein the 0V level signal represents logical zero, thyristor not conducting this moment, the 5V level signal represents logical one, and in the conducting during greater than 0V of thyristor forward voltage drop.Based on performance detecting system, can build SVC emulation controller model in RTDS inside.When data consistent that SVC controller model and parameter and manufacturing plant in RTDS provide, just can check confidence level and the rationality of the parameter that supplies a model.
Adopt the detection system of above-mentioned foundation, can carry out following actual SVC controller performance and detect and the model emulation comparison test.
(1) the Performance Detection test comprises following items
Basic control mode, namely voltage control mode and idle control mode, comprise Reactive Power Control mode, reactive current control mode, power factor controlling mode etc.
Other control modes comprise idle regulatory function, the control of TCR DC current, negative phase-sequence control, manual adjustments mode etc. at a slow speed.
The defense controls function of regulon; comprise that defense controls, low-voltage control function, secondary voltage restriction, TCR current limit, TSC(Thyristor switched capacitor., thyristor series capacitor) overcurrent protection control function, TSC overvoltage protecting control function etc.
Range of operation test and specified reactive capability validation test, automatic, manual idle adjustment and switching tests, step response and linearity test, each auxiliary limiting element characteristic compare compatibility test etc. continuously.
(2) emulation relatively comprises following pilot project
Voltage control mode model and parameter Correctness checking and characteristic comparison test.
Idle control mode comprises that the models such as Reactive Power Control mode, reactive current control mode, power factor controlling mode and parameter Correctness checking and characteristic relatively try.
Sensitivity testing during parameter change under above two kinds of control modes.
(3) each auxiliary limiting element characteristic comparison test, the low-voltage scheme.
Detect as example take certain wind energy turbine set SVC controller performance, concrete testing scheme is as follows:
1. the source book that provides according to manufacturing plant calculates the repairing experiment master data
Carry out the SVC controller performance and detect data and the data to arrange typical wind energy turbine set connecting system, comprise that mainly the system equivalent model of wind energy turbine set access point and parameter, wind energy turbine set send circuit model and parameter, wind energy turbine set main transformer model and parameter, wind energy turbine set 35kV side fixed compensation capacitor device group parameter, wind energy turbine set 35kV side thyristor-controlled reactor parameter etc.
2. certain SVC controller model block diagram and basic parameter
This SVC controller adopts zero idle control mode, and target is that wind energy turbine set high-voltage side bus Rendezvous Point injected system zero is idle
3. SVC controller performance test
Zero idle control test is example take the high-pressure side, illustrates by primary equipments such as system side switched capacitor, reactors, carries out the detection of controller action characteristic.
The test of drawing capacitor:
Operating condition of test 1: blower fan is exerted oneself: meritorious 56MW, idle 0; High side voltage: 221kV; Low-pressure side voltage: 34.67kv; SVC always exports: Q=9Mvar; The TCR reactive power is output as-8.5Mvar; FC branch reactive power is output as 18Mvar.
Under above-mentioned operating mode, twice input of system high pressure side, 1.1 micro farad capacitor contrast tests.
The SVC controller arranges in identical operating mode and parameter and carries out identical test under state, and larger difference appears in twice experimental result; Also appear at the high-pressure side idle near 0 o'clock reverse phenomenon of regulating.
RTDS models fitting validation test: according to the data that producer provides, build the idle control model of on all four perseverance with it in RTDS, and carry out identical testing experiment, confirm the validity that supplies a model by the contrast of dynamic response.According to the SVC principle of device model that producer provides, RTDS can be good at the dynamic response process of emulation SVC device.But it is to be noted: in test, the parameter of SVC mounted cast is set to Kp=0.5Ti=0.02; And for its external characteristics of match, the parameter of RTDS model is set to Kp=0.083Ti=0.24.Provide simulation result and the equipment energy characteristic that parameter is carried out to differ greatly according to producer in test, the parameter that visible producer provides can not directly apply to the BPA(power system analysis software) emulation.
The beneficial effect that technical solutions of the utility model are brought: can detect easily on-the-spot indiscoverable the concealing defects of the SVC of producer controller, can be used for simultaneously carrying out the SVC controller model that is applicable to electric system machine stability analysis calculating use and confirm.
Those skilled in the art can also recognize the various illustrative components, blocks (illustrative logical block) that the utility model embodiment lists, the unit, and step can pass through electronic hardware, computer software, or both combinations realize.Be the clear replaceability (interchangeability) of showing hardware and software, above-mentioned various illustrative components (illustrative components), unit and step have been described their function generally.Such function is to realize depending on the designing requirement of specific application and whole system by hardware or software.Those skilled in the art can be for every kind of specific application, and can make ins all sorts of ways realizes described function, but this realization should not be understood to exceed the scope of the utility model embodiment protection.
Various illustrative logical block described in the utility model embodiment, or the unit can pass through general processor, digital signal processor, special IC (ASIC), field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the design of above-mentioned any combination realizes or operates described function.General processor can be microprocessor, and alternatively, this general processor also can be any traditional processor, controller, microcontroller or state machine.Processor also can realize by the combination of calculation element, for example digital signal processor and microprocessor, multi-microprocessor, Digital Signal Processor Core of one or more microprocessors associating, or any other similarly configuration realize.
Method described in the utility model embodiment or the step of algorithm can directly embed hardware, the software module of processor execution or the two combination.Software module can be stored in the storage medium of other arbitrary form in RAM storer, flash memory, ROM storer, eprom memory, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this area.Exemplarily, storage medium can be connected with processor so that processor can be from storage medium reading information, and can deposit write information to storage medium.Alternatively, storage medium can also be integrated in processor.Processor and storage medium can be arranged in ASIC, and ASIC can be arranged in user terminal.Alternatively, processor and storage medium also can be arranged in different parts in user terminal.
In one or more exemplary designs, the described above-mentioned functions of the utility model embodiment can realize in hardware, software, firmware or this three's combination in any.If realize in software, these functions can be stored on medium with computer-readable, or are transmitted on the medium of computer-readable with one or more instructions or code form.The computer-readable medium comprises the computer storage medium and is convenient to make allows computer program transfer to other local telecommunication media from a place.Storage medium can be the useable medium that any general or special computer can access.For example, such computer readable media can include but not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage device, or other anyly can be used for carrying or storage and can be read by general or special computer or general or special processor the medium of the program code of form with instruction or data structure and other.In addition, any connection can suitably be defined as the computer-readable medium, for example, if software is by a concentric cable, fiber optic cables, twisted-pair feeder, Digital Subscriber Line (DSL) or also being comprised in defined computer-readable medium with wireless way for transmittings such as infrared, wireless and microwave from a web-site, server or other remote resource.Described video disc (disk) and disk (disc) comprise Zip disk, radium-shine dish, CD, DVD, floppy disk and Blu-ray Disc, and disk is usually with the magnetic duplication data, and video disc carries out the optical reproduction data with laser usually.Above-mentioned combination also can be included in the computer-readable medium.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above is only embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. wind energy turbine set static reactive SVC Setup Controller detection system, it is characterized in that, described wind energy turbine set static reactive SVC Setup Controller detection system comprises: static reactive SVC controller, photoelectric commutator and real-timedigital simulation instrument RTDS, wherein
Static reactive SVC controller in described wind energy turbine set static reactive SVC Setup Controller detection system is connected with real-timedigital simulation instrument RTDS by photoelectric commutator, to form closed-loop control system.
2. wind energy turbine set static reactive SVC Setup Controller detection system as claimed in claim 1, is characterized in that,
Described real-timedigital simulation instrument RTDS comprises: optical fiber converting digital input GTDI card, after being used for light pulse signal that described real-timedigital simulation instrument RTDS receives the output of SVC controller and converting 0～5V dc level signal to through photoelectric commutator, by the described optical fiber converting digital input GTDI card in described real-timedigital simulation instrument RTDS, the described 0～5V dc level signal that receives is converted to the digital controlled signal of " 0 " and " 1 ".
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103592532A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var compensator |
| CN103592531A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var generator |
| CN104133377A (en) * | 2014-08-01 | 2014-11-05 | 国家电网公司 | SVC controller closed-loop detecting platform based on ADPSS and user-defined modeling method |
| CN104345225A (en) * | 2013-07-31 | 2015-02-11 | 国家电网公司 | SVG apparatus detection system based on RTDS |
| CN107065833A (en) * | 2017-05-24 | 2017-08-18 | 国网辽宁省电力有限公司电力科学研究院 | A kind of test system of wind power plant SVC Reactive-power control abilities |
| CN110399624A (en) * | 2018-04-25 | 2019-11-01 | 中国电力科学研究院有限公司 | A kind of high-power concentration reactive power compensator parameter test method and system |
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2013
- 2013-01-10 CN CN 201320012769 patent/CN202995455U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104345225A (en) * | 2013-07-31 | 2015-02-11 | 国家电网公司 | SVG apparatus detection system based on RTDS |
| CN104345225B (en) * | 2013-07-31 | 2017-04-12 | 国家电网公司 | SVG apparatus detection system based on RTDS |
| CN103592532A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var compensator |
| CN103592531A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var generator |
| CN103592532B (en) * | 2013-10-21 | 2016-03-02 | 国家电网公司 | A kind of parameter detection method of wind energy turbine set Static Var Compensator and system |
| CN103592531B (en) * | 2013-10-21 | 2016-03-02 | 国家电网公司 | A kind of parameter detection method of wind energy turbine set static reacance generator and system |
| CN104133377A (en) * | 2014-08-01 | 2014-11-05 | 国家电网公司 | SVC controller closed-loop detecting platform based on ADPSS and user-defined modeling method |
| CN107065833A (en) * | 2017-05-24 | 2017-08-18 | 国网辽宁省电力有限公司电力科学研究院 | A kind of test system of wind power plant SVC Reactive-power control abilities |
| CN110399624A (en) * | 2018-04-25 | 2019-11-01 | 中国电力科学研究院有限公司 | A kind of high-power concentration reactive power compensator parameter test method and system |
| CN110399624B (en) * | 2018-04-25 | 2022-11-11 | 中国电力科学研究院有限公司 | Parameter testing method and system for high-power centralized reactive power compensation device |
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