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(fēng)力機(jī)組單機(jī)容量的不斷增大,提高發(fā)電效率已是風(fēng)力發(fā)電研究的重要內(nèi)容。采用變槳距風(fēng)力機(jī)實現(xiàn)最大風(fēng)能捕獲和利用的變速恒頻發(fā)電已成為當(dāng)前風(fēng)電技術(shù)的研究熱點。