大型排灌站高压电机就地无功补偿技术探讨  

Discussion on Reactive Power Compensation Technology of High Voltage Motor in Large-Scale Drainage and Irrigation Station

作　　者：刘凯 LIU Kai(CCCC Second Harbor Engineering Survey and Design Institute Co.Ltd.,Wuhan 430061,China)

机构地区：[1]中交第二航务工程勘察设计院有限公司,武汉430061

出　　处：《工程建设与设计》2021年第10期44-46,共3页Construction & Design for Engineering

摘　　要：大型排灌站中水泵电机多为异步电机,设备自身功率因数较低不能满足供电部门对功率因数最低要求,需进行无功补偿。同时大型排灌站具有单机容量大、机组开机数量受天气影响较大等特点,机组较多采用就地无功补偿方式进行无功补偿。论文结合相关的工程实例,对大型灌排站中高压异步电机就地无功补偿技术的设备选型、补偿容量计算进行技术分析研究,为类似的补偿方案设计提供技术参考。Most of the pump motors in large drainage and irrigation stations are asynchronous motors,and the power factor of the equipment itself is low,which can not meet the minimum power factor requirements of the power supply department,and reactive power compensation is needed.At the same time,the large-scale irrigation and drainage station has the characteristics of large capacity of single machine,and the number of units started up is greatly affected by the weather,so the local reactive power compensation method is used for reactive power compensation.Combined with relevant engineering examples,this paper analyzes and studies the equipment selection and compensation capacity calculation of local reactive power compensation technology of medium and high voltage asynchronous motor in large irrigation and drainage station,so as to provide technical reference for similar compensation scheme design.

关 键 词：就地无功补偿 电容器 额定电压 供电部门 无功补偿容量 高压电机 排灌站 技术探讨 

分 类 号：TM761[电气工程—电力系统及自动化]