A pmsg low voltage ride through system based on reactive power control
A technology of low-voltage ride-through and power control, applied in the direction of single-grid parallel feeding arrangement, etc., can solve problems such as drop, grid voltage asymmetry, wind turbine off-grid, etc.
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[0022] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.
[0023] In the present invention, a static synchronous var compensator is installed on the high-voltage end of the grid-connected port, and the static var compensator (STATCOM) and the grid-side inverter (according to the principle of wind energy capture, track the speed of the wind turbine to realize maximum wind energy utilization and output The optimal power captures the depth of the grid voltage drop to output reactive power to achieve the role of regulation. It is installed outside the wind turbine system) for coordinated control to improve the reactive power compensation capability of the wind power system and improve the performance of permanent magnet direct drive wind turbines. (PMSG) low voltage ride through capability of the system.
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