一种新颖的TSC无功循环投切装置  

A Novel TSC Reactive Power Cycle Switching Device

作　　者：孙春虎 方愿捷 SUN Chunhu;FANG Yuanjie(School of Electronic Engineering,College of Chaohu,Chaohu 238000,Anhui,China)

机构地区：[1]巢湖学院电子工程学院,安徽巢湖238000

出　　处：《电气传动》2021年第19期9-15,共7页Electric Drive

基　　金：国家级大学生创新创业项目(201910380020);安徽省高校优秀青年人才项目计划(gxyq2019083);巢湖学院校级科研产学研专项项目(XLY-201708)。

摘　　要：基于DSP和PLC平台设计了一种新颖的晶闸管投切电容器(TSC)无功循环投切装置。首先介绍了新颖TSC无功投切装置原理,接着介绍了TSC无功投切装置的DSP控制电路和PLC控制电路,然后从TSC无功投切装置发展现状、TSC无功投切方案选择和新颖TSC无功投切策略三方面对TSC循环投切控制策略进行了研究,对TSC无功投切相关程序进行了设计,包括PLC通信程序和PLC循环投切算法控制程序,最后利用Gx-works2仿真软件对控制策略进行了仿真分析。系统在实现无功功率补偿的同时,不仅能避免“投切振荡”现象的发生,还能实现电容器的循环投切,提高了装置的使用寿命和可靠性。Based on DSP and PLC,a novel thyristor switching capacitor(TSC)reactive power cycle switching device was designed.Firstly,the principle of the new TSC reactive power switching device was introduced,and the DSP control circuit and PLC control circuit of the TSC reactive power switching device were introduced.Then,the TSC cycle power switching control strategy was studied from three aspects:the development status of TSC reactive power switching device,the selection of TSC reactive power switching scheme and the novel TSC reactive power switching strategy.The relevant program of TSC reactive power switching were designed,which included PLC communication program and PLC cycle switching algorithm control program.Finally,the control strategy was simulated and analyzed by soft of Gx-works2.While realizing reactive power compensation,the system can not only avoid the phenomenon of"switching oscillation",but also realize the circulating switching of capacitors,which improves the service life and reliability of the device.

关 键 词：晶闸管投切电容器 无功补偿 DSP处理器 PLC控制器 循环投切 Gx-works2仿真 

分 类 号：TM712[电气工程—电力系统及自动化]