With the continuous enlargement in capacity of a wind - power generator , the efficiency improvement of electric power generation had been become more and more important . the variable - speed constant - frequency ( vscf ) power generation , which is served to reach maximum wind - energy capturing and utilization for a variable blade - pitch wind - turbine , is the studying hot - spot of the wind - power generation technique at present 隨著風力機組單機容量的不斷增大,提高發(fā)電效率已是風力發(fā)電研究的重要內(nèi)容。采用變槳距風力機實現(xiàn)最大風能捕獲和利用的變速恒頻發(fā)電已成為當前風電技術(shù)的研究熱點。