Method for reducing overvoltage of filter in wind driven generator side
The invention discloses a method for reducing overvoltage of a filter in a wind driven generator side, which can effectively solve the problem of overhigh voltage on a motor side caused by a long cable transmission line of a wind power generation system and is higher in cost performance. Namely, a p...
Gespeichert in:
Hauptverfasser: | , , , , , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The invention discloses a method for reducing overvoltage of a filter in a wind driven generator side, which can effectively solve the problem of overhigh voltage on a motor side caused by a long cable transmission line of a wind power generation system and is higher in cost performance. Namely, a positive bus and a negative bus in the direct current side of a converter connected with a generator in a wind power generation system are provided with Y capacitors respectively, one end of each Y capacitor is connected with the bus, and the other end of each Y capacitor is grounded; meanwhile, an LCR filter is arranged between the machine side of the converter and a long cable of the wind driven generator; and the overvoltage in the motor side of the wind power generation system is reduced through a structure of combining the Y capacitors with the LCR filter. As an improvement, a damping resistor is connected in series behind each Y capacitor.
本发明公开了一种能有效的解决由于风力发电系统长电缆传输线导致电机侧电压过高的问题,同时性价比更高的降低风力发电机侧滤波器过电压的方法,即:在风 |
---|