字数:12833,页数:33 附任务书,开题报告 摘 要 现在流行的异步电动机的调速方法可分为两种:变频调速和变压调速,其中异步电动机的变频调速应用较多,它的调速方法可分为两种:变频变压调速和矢量控制法,前者的控制方法相对简单,有二十多年的发展经验。因此应用的比较多,目前市场上出售的变频器多数都是采用这种控制方法。
By exchange frequency conversion velocity modulation system Abstract: Now the popular asynchronous motor velocity modulation method may divide into two kinds: The frequency conversion velocity modulation and the live pressure velocity modulation, in which asynchronous motor frequency conversion velocity modulation application are many, its velocity modulation method may divide into two kinds: The frequency conversion live pressure velocity modulation and the vector control method, the former control method is relatively simple, some more than 20 year development experience.Therefore application quite many, at present in the market sells the frequency changer most all uses this control method.
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