Capacity configuration method of wind farm dynamic reactive power compensation device based on low voltage ride through
A low-voltage ride-through and compensation device technology, applied in reactive power adjustment/elimination/compensation, wind power generation, flexible AC transmission system, etc., can solve the problem of high price of dynamic reactive power compensation devices, and achieve enhanced reactive power/voltage regulation ability, improving transient voltage stability, and suppressing voltage fluctuations
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[0039] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0040] The wind farm is composed of 25 fixed-speed asynchronous wind turbines with a single rated power of 2MW connected in parallel. The outlet voltage of the wind turbine is 0.69kV. It is connected to the internal power grid of the wind farm through a 0.69 / 35kV transformer, and then connected to a 35 / 110kV booster. Station, and connected to the local 110kV power grid through a 5-kilometer transmission line, and the dynamic reactive power compensation device is connected to the low-voltage side busbar of the 35 / 110kV step-up station. The dynamic reactive power compensation device can be SVC or STATCOM, and this embodiment takes SVC as an example, and the grid structure of this embodiment is as follows figure 2 shown.
[0041] to combine figure 1 The planning process,...
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