摘要
针对高压电机起动过程中的电网电压凹陷,以及电网枢纽点的母线电压波动等电能质量问题,提出了一种基于PLC调控自给直流励磁磁阀式可控电抗器的新型高压电机软起动方式。该方法克服了传统软起动方式装置体积大,谐波较大,对环境要求高,可靠性低,价格昂贵等缺点。结合自励式磁控软起动器基于恒流起动的控制策略,开发出基于16位单片机(Intel 80C196KC)和可编程逻辑控制器(PLC,Siemens S7-200)相结合的软起动器控制装置。
To the voltage sag during the starting of medium-voltage（MV,3～10kV） motors,and voltage fluctuations of bus bar in high-voltage power grid,the paper researches a new high-voltage soft starter based on PLC regulated auto-excitation MCR,which have overcame the traditional soft starter bulky,greater harmonics,highly demands on the environment,low reliability,high cost and other disadvantages.This paper researches constant current starting control strategies of auto-excitation MCR soft starter,develops the controller based on 16-bit microcontroller（Intel 80C196KC） and programmable logic controller（PLC,Siemens S7-200）.
出处
《科技创业月刊》
2012年第4期137-139,共3页
Journal of Entrepreneurship in Science & Technology
关键词
PLC
高压电机
软起动
自励磁
磁控电抗器
PLC
high-voltage electrical machine
soft start
auto-excitation
MCR
