Active power safety response method and system of permanent magnet wind generating set

The invention discloses an active power safety response method and system of a permanent magnet wind generating set. The method comprises the steps that S1, the maximum output power of the set at the current rotating speed is obtained; s2, comparing the external power instruction of the unit with th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUANG LINGXIANG, HUANG SHENG, HUANG GUOHANG, LYU MINGSHENG, LIAO WU, WEI JUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses an active power safety response method and system of a permanent magnet wind generating set. The method comprises the steps that S1, the maximum output power of the set at the current rotating speed is obtained; s2, comparing the external power instruction of the unit with the maximum output power; if the external power instruction is greater than the maximum output power, calculating a difference value between the external power instruction and the maximum output power; s3, obtaining an overload power constant according to the difference value, and obtaining an overload power response instruction according to the overload power constant and the current state information of the unit; wherein the overload power constant is smaller than the difference value; s4, controlling the unit according to the overload power response instruction so as to reduce the rotating speed of the unit; s5, the maximum output power of the unit at the current rotating speed is obtained, and the maximum output