本文提出了一種考慮電網的有功調度指令時，風電場多端直流系統(tǒng)的運行與控制方法。正常情況下，發(fā)電側變流器控制發(fā)電機工作在最大風能跟蹤模式，向直流系統(tǒng)輸送盡可能多的有功，網側變流器維持直流電壓。若電網對風電場的有功出力有限制，則網側變流器工作于定有功模式，而發(fā)電側變流器控制直流電壓。仿真表明該方法是有效的。最后介紹了風力發(fā)電實驗平臺的設計與實現。
Abstract: This paper proposes a dispatch control strategy of the multi-terminal DC (MTDC) system consisting of several voltage source converters (VSC) in wind farms. The wind generator operates in MPPT mode and the grid-side converter controls the dc voltage in normal condition. When the active power is limited by system operator, the grid-side converter operates in constant power mode, and the generator-side converter operates in constant voltage mode to regulate the dc bus voltage to its threshold. The simulation results illustrate the effectiveness of the developed approach. Finally, the design and implement of a wind energy experimental platform is introduced in this paper.
關鍵詞﹕風力發(fā)電；多端直流系統(tǒng)；有功調度；實驗平臺
Keywords: wind energy; multi-terminal DC system; active power dispatch; experimental platform