变频启动切换工频运行的控制原理解析  

A Load Test Platform for Inverter Networking

作　　者：林志刚 Lin Zhigang

机构地区：[1]上海辛格林纳新时达电机有限公司,上海201800

出　　处：《变频器世界》2024年第9期76-78,共3页The World of Inverters

摘　　要：本文分析了变频启动切换至工频运行的应用背景,例举了中央空调压缩机电机的变频启动后工频运行的方案,通过计算、仿真的手段对变频启动切换工频运行的切换电流数据进行分析,最后总结得出用变频器启动后切换至工频运行控制原理特点以及注意事项。This paper analyzes the application background of switching from frequency conversion to power frequency operation,and gives an example of the scheme of power frequency operation after frequency conversion of central air conditioning compressor motor.By means of calculation and simulation,the switching current data of frequency conversion to power frequency operation are analyzed,and finally,the control principle characteristics and precautions of switching to power frequency operation after frequency converter is started are summarized.

关 键 词：软启动器 星-三角 变频器 工频 切换电流 

分 类 号：TN773[电子电信—电路与系统]