新型抽油机变频电源设计  

Design of a New Frequency Converter for Oil -pumping Machine

作　　者：包广清[1] 毛开富[1] 骆东松[1] 

机构地区：[1]甘肃工业大学电气与信息工程学院,甘肃兰州730050

出　　处：《自动化与仪表》2002年第5期6-8,共3页Automation & Instrumentation

基　　金：甘肃省计委资助项目;甘肃工业大学校基金项目(132013)

摘　　要：结合国内多数油田的实际情况,以满足抽油机井节能降耗为目的,研制了一种双PWM抽油机变频电源。介绍了主电路与控制电路的设计。该电源实现了电能双向流动,并具有输入功率因数校正作用,从而克服了传统变频电源给电网造成的谐波污染和抽油机制动过程中的电能浪费,根本上提高了电能的利用效率,试运行显示其节能效率约为15%。According to the real conditions of m any oil fields in our country,a new double PWM frequency converter of oil -pumping machine is proposed whi ch can reduce energy consumption of p umping unit well.The converter al-lowes bidirectional power handling capability and provides input power factor correction,which can avoid h armonic pollution and energy loss during the brake procedure .As the overall energy efficiency is increased,the new e ner-gy -saving converter can be popularized in many fields.

关 键 词：变频电源 双PWM 抽油机 功率因数校正 节能 微机控制 

分 类 号：TE933.1[石油与天然气工程—石油机械设备] TM921.51[电气工程—电力电子与电力传动]