CN106199286A - Wind energy turbine set dynamic reactive compensation device response speed method of testing - Google Patents
Wind energy turbine set dynamic reactive compensation device response speed method of testing Download PDFInfo
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- CN106199286A CN106199286A CN201610692186.0A CN201610692186A CN106199286A CN 106199286 A CN106199286 A CN 106199286A CN 201610692186 A CN201610692186 A CN 201610692186A CN 106199286 A CN106199286 A CN 106199286A
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Abstract
The invention discloses a kind of wind energy turbine set dynamic reactive compensation device response speed method of testing, solve the excitation surge current process that prior art exists of short duration, the biggest even-order harmonic can be produced, the problem that the accuracy of response speed test is low.First the present invention simulates wind energy turbine set secondary side voltage disturbance, and dynamic reactive compensation device detects voltage disturbance thus exports compensating reactive power；Secondly wind energy turbine set voltage and idle relation are modeled, the compensating reactive power of output are converted into compensation voltage, feed back to dynamic reactive compensation device.The method applied range, can truly simulate the overall process of wind energy turbine set dynamic passive compensation speed responsive, it is provided that a kind of new wind energy turbine set dynamic reactive compensation device response speed test method, is particularly suitable for wind energy turbine set and uses.
Description
Technical field
The present invention relates to a kind of method that dynamic reactive compensation device is carried out testing experiment, particularly to one to wind-powered electricity generation
The method that the response speed of field dynamic reactive compensation device carries out testing.
Background technology
Wind energy turbine set is incorporated in tradition electrical network, it sometimes appear that wind energy turbine set large area off-grid accident, analyzes its reason, is sometimes
Owing to dynamic reactive compensation device fails quick response regulation system voltage to zone of reasonableness, cause protecting interlocking action tripping operation institute
Cause.Therefore, the response speed of wind energy turbine set dynamic reactive compensation device is tested, to ensure that it can normally play a role, keep away
Exempt from above accident to occur.At present, the response speed to wind energy turbine set dynamic reactive compensation device carries out test a following several method:
First method is: switching fixed capacity device group upset test method, the method range of application is narrower, for not configuring fixed capacity
The wind energy turbine set of device group, the method cannot be applied.Second method is: other dynamic reactive compensation device reactive power impact methods, the party
Method utilizes instantaneous the idle of other dynamic reactive compensation devices of change to exert oneself, and produces voltage disturbance.Dynamically nothing unique for configuration
The wind energy turbine set of Reactive power compensation installations, the method cannot be applied equally.The third method is: collection electric wire wind chassis type static exciter is gushed
Stream method, the method utilizes the process of closed set electric wire switching moments wind chassis type transformer excitation flow to produce low-voltage disturbance；
Shortcoming is that excitation surge current process is the ofest short duration, and can produce the biggest even-order harmonic, and voltage distortion is serious, affects response speed examination
The accuracy tested；Meanwhile, disconnect collection electric wire and need blowing-out machine, the waste of clean energy resource can be caused.
Summary of the invention
The invention provides a kind of wind energy turbine set dynamic reactive compensation device response speed method of testing, solve prior art
The excitation surge current process existed is of short duration, can produce the biggest even-order harmonic, the technical problem that the accuracy of response speed test is low.
The present invention is to solve above technical problem by the following technical programs:
A kind of wind energy turbine set dynamic reactive compensation device response speed method of testing, comprises the following steps:
The first step, on wind energy turbine set bus connect have dynamic reactive compensation device, by the voltage detecting of dynamic reactive compensation device
Signal input part links together with the three-phase voltage outfan of three-phase inversion module, is connected by the input of three-phase inversion module
On the DC voltage output end of MDQ, the input of MDQ is connected on municipal administration electrical network；Three
Industrial Control Computer is connected, by communication outfan and the Industrial Control Computer of dynamic reactive compensation device on the control end of phase inversion module
Link together, between the three-phase voltage outfan and Industrial Control Computer of three-phase inversion module, be connected voltmeter；At three contraries
Become and be connected data logger between three-phase voltage outfan and the idle outfan of dynamic reactive compensation device of module；In industry
In control machine, set up wind energy turbine set bus voltage and idle between relational model；
Second step, three-phase inversion module receive the pwm signal of Industrial Control Computer output, carry out inverse to the DC voltage after rectification
Becoming, inverter uses the voltage source inverter controlling technology based on PWM, it is thus achieved that to three-phase symmetrical alternating voltage, simulated
Wind energy turbine set bus disturbance voltage；
3rd step, Industrial Control Computer receive the voltage signal of voltmeter, form closed loop feedback and control, stablize three-phase inversion module defeated
The three-phase symmetrical alternating voltage gone out；
4th step, arranging disturbance voltage on Industrial Control Computer, dynamic reactive compensation device detects this disturbance voltage, and carries out nothing
Merit compensates；
5th step, Industrial Control Computer receive the instruction of the compensating reactive power of dynamic reactive compensation device, the wind set up by the first step
The model of the voltage of electric field bus and idle relation, by dynamic reactive compensation device idle instruction morphing for wind energy turbine set bus
Voltage variety；The true overall process simulating wind energy turbine set dynamic passive compensation speed responsive；
6th step, according to the output voltage of the three-phase inversion module of data logger record and the output of dynamic reactive compensation device
Idle data, it is thus achieved that idle 90% is stablized in voltage disturbance moment and dynamic reactive compensation device output in data logger
Moment；
7th step, voltage disturbance moment and dynamic reactive compensation device are exported and stablizes moment of idle 90% and compare,
To the response time of dynamic reactive compensation device, thus draw the response speed of this reactive power compensator.
First the present invention simulates wind energy turbine set secondary side voltage disturbance, and dynamic reactive compensation device detects voltage disturbance thus defeated
Go out compensating reactive power；Secondly wind energy turbine set voltage and idle relation are modeled, the compensating reactive power of output is converted into compensation electricity
Pressure, feeds back to dynamic reactive compensation device.The method applied range, can truly simulate wind energy turbine set dynamic passive compensation speed and ring
The overall process answered, it is provided that a kind of new wind energy turbine set dynamic reactive compensation device response speed test method.
The present invention can truly simulate the overall process of wind energy turbine set dynamic passive compensation response, it is provided that a kind of new wind energy turbine set is moved
State reactive power compensator response speed test method.
Accompanying drawing explanation
Fig. 1 is the test circuit structure schematic diagram of the present invention.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
A kind of wind energy turbine set dynamic reactive compensation device response speed test method, is embodied as step as follows:
The first step, on wind energy turbine set bus 7 connect dynamic reactive compensation device 5, by the voltage detecting of dynamic reactive compensation device 5
Signal input part is connected with the three-phase voltage outfan of three-phase inversion module 2, and the input of three-phase inversion module 2 connects single-phase whole
The DC voltage output end of flow module 1, the input of MDQ 1 connects civil power 8, the control of three-phase inversion module 2
On end, connection has Industrial Control Computer 4, and the communication outfan of dynamic reactive compensation device 5 is connected with Industrial Control Computer 4, at three contraries
Become to be connected between three-phase voltage outfan and the Industrial Control Computer 4 of module 2 and have voltmeter 3；At three-phase inversion module 2 three-phase voltage
It is connected between outfan and the idle outfan of dynamic reactive compensation device 5 and has data logger 6；In Industrial Control Computer 4 right
The voltage of wind energy turbine set bus 7 is modeled with idle relation；MDQ 1 carries out rectification to civil power 8, it is thus achieved that unidirectional current
Pressure；
Second step, three-phase inversion module 2 receive the pwm signal of Industrial Control Computer 4 output, carry out inverse to the DC voltage after rectification
Becoming, inverter uses the voltage source inverter controlling technology based on PWM, it is thus achieved that to three-phase symmetrical alternating voltage, simulated
Wind energy turbine set bus disturbance voltage；
3rd step: Industrial Control Computer 4 receives the voltage signal of voltmeter 3, forms closed loop feedback and controls, stablize three-phase inversion module
The three-phase symmetrical alternating voltage of 2 outputs；
4th step, arranging disturbance voltage on Industrial Control Computer 4, dynamic reactive compensation device 5 detects this disturbance voltage, and carries out
Reactive-load compensation；
5th step, Industrial Control Computer 4 receive the instruction of the compensating reactive power of dynamic reactive compensation device 5, are set up by the first step
The model of the voltage of wind energy turbine set bus 7 and idle relation, idle instruction morphing female for wind energy turbine set by dynamic reactive compensation device 5
The voltage variety of line 7；This step can simulate the overall process of wind energy turbine set dynamic passive compensation response；
6th step, according to the output voltage of three-phase inversion module 2 of data logger 6 record and dynamic reactive compensation device 5
Export idle data, it is thus achieved that voltage disturbance moment and dynamic reactive compensation device 5 output in data logger 6 are stablized idle
The moment of 90%；
7th step, voltage disturbance moment and dynamic reactive compensation device 5 are exported and stablize moment of idle 90% and compare,
Obtain the response time of dynamic reactive compensation device 5, thus judge the response speed of this reactive power compensator 5.
Claims (1)
1. a wind energy turbine set dynamic reactive compensation device response speed method of testing, comprises the following steps:
The first step, there is dynamic reactive compensation device (5), by dynamic reactive compensation device (5) in the upper connection of wind energy turbine set bus (7)
Voltage detection signal input links together with the three-phase voltage outfan of three-phase inversion module (2), by three-phase inversion module
(2) input is connected on the DC voltage output end of MDQ (1), by the input of MDQ (1)
It is connected in municipal administration electrical network (8)；The control end of three-phase inversion module (2) connects Industrial Control Computer (4), dynamic reactive is mended
The communication outfan repaying device (5) links together with Industrial Control Computer (4), defeated at the three-phase voltage of three-phase inversion module (2)
Go out end and be connected voltmeter (3) with between Industrial Control Computer (4)；Three-phase inversion module (2) three-phase voltage outfan with dynamically
Data logger (6) is connected between the idle outfan of reactive power compensator (5)；In Industrial Control Computer (4), set up wind energy turbine set
The voltage of bus (7) and idle between relational model；
Second step, three-phase inversion module (2) receive the pwm signal that Industrial Control Computer (4) exports, and are pressed into the unidirectional current after rectification
Row inversion, inverter uses the voltage source inverter controlling technology based on PWM, it is thus achieved that to three-phase symmetrical alternating voltage, obtain
Simulation wind energy turbine set bus disturbance voltage；
3rd step, Industrial Control Computer (4) receive the voltage signal of voltmeter (3), form closed loop feedback and control, stablize three-phase inversion
The three-phase symmetrical alternating voltage that module (2) exports；
4th step, arranging disturbance voltage on Industrial Control Computer (4), dynamic reactive compensation device (5) detects this disturbance voltage, and
Carry out reactive-load compensation；
5th step, Industrial Control Computer (4) receive the instruction of the compensating reactive power of dynamic reactive compensation device (5), are built by the first step
The voltage of vertical wind energy turbine set bus (7) and the model of idle relation, idle instruction morphing by dynamic reactive compensation device (5) is
The voltage variety of wind energy turbine set bus (7)；The true overall process simulating wind energy turbine set dynamic passive compensation speed responsive；
6th step, the output voltage of the three-phase inversion module (2) recorded according to data logger (6) and dynamic reactive compensation device
(5) the idle data of output, it is thus achieved that the voltage disturbance moment in data logger (6) and dynamic reactive compensation device (5) output
Stablize the moment of idle 90%；
7th step, voltage disturbance moment and dynamic reactive compensation device (5) are exported and stablizes moment of idle 90% and compare
Relatively, obtain the response time of dynamic reactive compensation device (5), thus draw the response speed of this reactive power compensator (5).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266012A (en) * | 2019-05-29 | 2019-09-20 | 华电电力科学研究院有限公司 | A kind of photovoltaic plant dynamic reactive response time test method |
| CN112269087A (en) * | 2020-10-26 | 2021-01-26 | 国网河北省电力有限公司电力科学研究院 | High-low voltage ride through capability detection system of reactive power compensation device |
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2016
- 2016-08-20 CN CN201610692186.0A patent/CN106199286B/en active Active
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| JPH0698469A (en) * | 1992-09-17 | 1994-04-08 | Nissin Electric Co Ltd | Control system of voltage detection-type reactive-power compensation apparatus |
| CN102981079A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detection device and method for straightly hanging type reactive power generation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110266012A (en) * | 2019-05-29 | 2019-09-20 | 华电电力科学研究院有限公司 | A kind of photovoltaic plant dynamic reactive response time test method |
| CN112269087A (en) * | 2020-10-26 | 2021-01-26 | 国网河北省电力有限公司电力科学研究院 | High-low voltage ride through capability detection system of reactive power compensation device |
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