摘要
三相交流电动机直接起动除了对电机本身的电磁力冲击较大外 ,还会引起电网电压波动从而影响接在同一供电线路上的其它用电设备的正常运行 ;同时我国工矿企业中交流电机使用中普遍存在“大马拉小车”现象 ,电机功率因数普遍较低 ,对电力系统和工厂供电系统都带来不利的影响。为此 ,我们研制了三相交流电动机软起动及功率因数补偿控制装置。
The softstart of threephase AC motor not only gives impulse to the electromagnetic force of itself, but also brings about the fluctuation of the network voltage. As a result, it has an influence on the operation of the other devices coupling to the same power supply. Furthermore ,the low power factor of motor is an general phenomenon existing in the use of AC motor in the enterprises of our country, which has a negative effect on the power supplying system and electric power system. In order to resolve these problems, the devices for the softstart and power factor compensation control system of AC motor are put forward.
出处
《计算技术与自动化》
2001年第3期13-17,共5页
Computing Technology and Automation
