井下潜油电泵机组变频电压消压器的设计  

Design of Variable-frequency Voltage Depressor for Underground Electric Submersible Pump Unit

作　　者：白丽丽[1] 卢晓云 孙文峰 高金兰[1] 杨莉[1] BAI Li-li;LU Xiao-yun;SUN Wen-feng;GAO Jin-lan;YANG Li(College of Electrical Engineering and Information,Northeast Petroleum University;Pumping Unit Research Institute,Daqing Oilfield Equipment Manufacturing Group Co.)

机构地区：[1]东北石油大学电气信息工程学院 [2]大庆油田装备制造集团抽油机分公司研究所

出　　处：《化工自动化及仪表》2018年第7期550-554,共5页Control and Instruments in Chemical Industry

基　　金："十三五"国家科技重大专项(2016ZX05020-002);东北石油大学青年基金项目(NEPUQN2014-03)

摘　　要：潜油电泵在变频驱动时,潜油电机星点处会产生较高的共模电压和高次谐波,严重危害潜油电泵机组井下系统的正常运行。为解决这一问题,设计了一个潜油电泵机组井下变频电压消压器,仿真结果表明:该消压器能有效抑制电动机星点处产生的共模电压与谐波。Considering that fact that higher common mode voltage and higher harmonics can occur at the star point of submersible motor when submersible pump is driven at variable frequency and this may seriously damage the operation of the downground system of the submersible electric pump unit,a kind of variable-frequency voltage depressor for the underground submersible electric pump unit was designed. Simulation results show that,this voltage depressor designed can effectively suppress the common mode voltage at the star point of the submersible motor and can reduce the negative effects caused by it.

关 键 词：变频电压消压器 井下潜油电泵 共模电压 高次谐波 变频器 RC新型网络 谐波抑制 

分 类 号：TP865[自动化与计算机技术—检测技术与自动化装置]