介绍了高压变频器改造烧结厂主抽风机的控制原理及合理的运行状态，以及改造后所取得的效果，对烧结厂的烧结生产和降低生产电耗有重要意义。%Absreact;The paper introduces the control principle and reasonable operation state of the spindle exhauster , which is reformed with high voltage converter , then introduces the obtained results .The results have important significance to sintering production and reduc-ing power consumption of the sintering plant .
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