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发明名称
三绕组异步机串级调速的内补偿法
摘要
一种在三绕组式异步电动机的三次绕组上实行无功补偿的新型单机就地补偿方法,主要用于改善内反馈可控硅串级调速系统的功率因数,并可进一步提高调速效率,抑制谐波。无功补偿装置为低压型,通过三次绕组的磁势在电动机内的合成,减小电动机原绕组的激磁电流。当电机处于适当的过补偿状态时,三绕组异步机可向电网供出感性无功功率,起到同步电机的补偿作用。
申请公布号
CN1061685A
申请公布日期
1992.06.03
申请号
CN90109226.6
申请日期
1990.11.20
申请人
沈太福
发明人
屈维谦;沈太福
分类号
H02P7/36;H02P7/625
主分类号
H02P7/36
代理机构
代理人
主权项
1、一种在三绕组电动机内部实行无功补偿的新型单机就地补偿方法,其特征在于无功补偿装置与电动机三次绕组及有源逆变器网侧相联接,从而实现以低压补偿达到高压补偿的目的,而且进一步提高调速效率,减小对电网谐波影响。
地址
100044北京市海淀区紫竹院甲1号
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