| 基于PLC控制系统的高压大电机磁控软起动装置研究 |
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| 引用本文： | 陈博.基于PLC控制系统的高压大电机磁控软起动装置研究[J].科技创业月刊,2012(4):137-139. |
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| 作者姓名： | 陈博 |
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| 作者单位： | 华中科技大学电气与电子工程学院,湖北武汉,730074 |
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| 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。
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| 关 键 词： | PLC 高压电机 软起动 自励磁 磁控电抗器 |
Research on Soft Starter for High Voltage Electric Machines based on MCR |
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| Abstract: | 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). |
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| Keywords: | PLC high-voltage electrical machine soft start auto-excitation MCR |
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