A movable dynamic reactive power compensation device detector and its testing method
A technology of compensation device and test method, applied in the direction of measurement device, instrument, measuring electricity, etc., can solve the problems of affecting the normal operation of wind farms, the simulation system is expensive, and cannot test dynamics, etc., and achieves low cost per test and compact structure. , the effect of fast detection
Inactive Publication Date: 2016-04-20
STATE GRID CORP OF CHINA +2
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Problems solved by technology
A disturbance test is to directly generate a disturbance on the primary side of the grid for testing, which affects the normal operation of the wind farm. At the same time, the equipment is large in size and expensive, and it is not easy to move
The simulation test adopts digital simulation to simulate the fault of the power grid to test the controller of the reactive power compensation device. This method can fully test the performance of the controller, but the simulation system is expensive and cannot test the dynamic reactive power compensation device. Machine performance
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[0038] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0039] The movable dynamic reactive power compensation device detector provided by the present invention is composed of a plurality of processing units. By sampling the voltage and current of the PT / CT secondary side and simultaneously loading the synchronous disturbance signal into the sampling signal, the required disturbance signal. The principle of dynamic reactive power compensation device detector is as follows: figure 1 shown. The detector is connected with the dynamic reactive power compensation device. The detector includes a sampling unit, a detection unit, a synchronous output unit and a disturbance generating unit. connection; the detector simultaneously detects the primary side and the secondary side of the dynamic reactive power compensation device.
[0040] The sampling unit is responsible for sampling ...
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The invention relates to a movable detector for a dynamic reactive power compensation device and a test method of the movable detector for the dynamic reactive power compensation device. The movable detector for the dynamic reactive power compensation device comprises a sampling unit, a detection unit, a synchronous output unit and a disturbance generation unit, wherein the sampling unit is connected with the detection unit and the synchronous output unit, the disturbance generation unit is connected with the detection unit and the synchronous output unit, and the movable detector for the dynamic reactive power compensation device is connected with the dynamic reactive power compensation device, and is used for detecting a primary side and a secondary side at the same time. According to the movable detector for the dynamic reactive power compensation device and the test method of the movable detector for the dynamic reactive power compensation device, the defects of a primary disturbance test and the defects of an analogue simulation test are overcome, and comprehensive testing can be carried out on the whole dynamic reactive power compensation device on the situation of normal operation conditions of a system. The movable detector for the dynamic reactive power compensation device uses disturbance of a secondary side voltage of a voltage and current transformer as a target, the capacity of the detector is small, the structure is compact, the whole detector can be installed in a space with the size equal to the sum of the sizes of two standard cabinets, and can be fixedly arranged in a small-sized electric power maintenance car to be transported, tests can be carried out on different sites, and the movable testing function of the movable detector for the dynamic reactive power compensation device is achieved.
Description
technical field [0001] The invention relates to a detection device of a reactive power compensation device and a detection method thereof, in particular to a movable dynamic reactive power compensation device detection instrument and a detection method thereof. Background technique [0002] At present, dynamic reactive power compensation equipment has been widely used in my country's wind farms, new energy power generation and industrial fields. With the increasing proportion of wind power generation in electric energy, the influence of wind power generation system on the safe and stable operation of power grid can no longer be ignored. The control performance of dynamic reactive voltage compensation equipment installed in wind farms will directly affect the safe and stable operation of wind turbines and the high and low voltage ride-through capability. Therefore, the on-site detection before the wind farm dynamic reactive power compensation equipment is put into use is ver...
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IPC IPC(8): G01R31/00
Inventor 袁蒙燕翚叶卫华张爽周建丽黄永宁田蓓赵晓东
Owner STATE GRID CORP OF CHINA