Response waveform detecting device and method for dynamic reactive-power generating device
A generation device and waveform detection technology, which is applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problem of sampling information distortion and achieve accurate and reliable testing
Active Publication Date: 2013-03-20
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +1
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[0003] The invention provides a response waveform detection device and detection method of a dynamic reactive power generating device, which solves the problem of distortion of the first-hand sampling information in the test of the response time of the dynamic reactive power generating device in the prior art
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[0014] A dynamic reactive power generating device response waveform detection device, including a bus 1, a dynamic reactive power generating device 5 and a wave recorder 12, and a first collector line 2, a transformer 9 and a voltage transformer 11 are respectively electrically connected to the bus 1 , the high voltage side of the dynamic reactive power generating device connected to the transformer 7 is electrically connected to the bus bar 1, the dynamic reactive power generating device is connected to the low voltage side of the transformer 7 and the dynamic reactive power generating device 5 is electrically connected, and the dynamic reactive power generating device is connected to the high voltage of the transformer 7 On the line between the busbar 1 and the dynamic reactive power generating device, a current transformer 8 connected to the high voltage side of the transformer is set, and on the line between the dynamic reactive power generating device connected to the low v...
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The invention discloses a response time detecting device and method for a dynamic reactive-power generating device, and solves the problem that in the prior art, the firsthand sampling information of a response time test of the dynamic reactive-power generating device is fuzzy. The detecting device comprises a first current collection circuit (2), a transformer (9) and a voltage transformer (11) which are respectively and electrically connected with a bus (1), wherein a breaker (3) is arranged between the bus (1) and the first current collection circuit (2); a secondary side A phase of a current transformer (4) of the first current collection circuit, a secondary side A phase connected with a current transformer (8) at a high-voltage side of the transformer, a secondary side A phase connected with a current transformer (6) at a low-voltage side of the transformer and a secondary side A phase connected with a current transformer (10) at a low-voltage side of the transformer are all electrically connected with an input terminal of an oscillograph (12); and the secondary side A phase of a voltage transformer (11) is electrically connected with a voltage waveform input terminal of the oscillograph (12). The detecting device is accurate in testing and is applicable to the power grid site.
Description
technical field [0001] The invention relates to a detection device and a detection method for the response waveform of a dynamic reactive power generation device connected to a power grid to a disturbance source. Background technique [0002] After the large-scale connection of wind farms to the power grid, the application of a large number of power electronic devices has caused new problems to the power grid, especially the large-scale off-grid of wind power, which will have a serious impact on the power grid. In order to ensure the safe and stable operation of the system. New requirements are put forward for the response time of dynamic var generators in wind farms. According to the relevant requirements, the response time of the dynamic reactive power generating device in the wind farm should be within 30 milliseconds, which requires an effective and real test of the response time of the dynamic reactive power generating device on site. The device is evaluated. The ex...
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Inventor 杨超颖王康宁王金浩齐月文宋述勇张悦徐龙雷达弭勇
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER