基于FPGA的可控硅移相触发控制器的实现  

FPGA Based Implementation of Phase-Shifted Trigger Controller for SCR

作　　者：秦茂 徐小方 孙新志 薛林锋 张兴旺 

机构地区：[1]中国电器科学研究院有限公司,广州510860

出　　处：《电测与仪表》2014年第3期77-80,共4页Electrical Measurement & Instrumentation

基　　金：广州市科技计划资助项目(2011J5200024)

摘　　要：针对模拟式可控硅移相触发电路稳定性很难保证的现象,本文设计了基于FPGA的可控硅移相触发控制器。该控制器采用模块化设计,以FPGA作为核心控制单元,电压Uk作为控制信号,产生用于可控硅移相触发的宽脉冲。当同步信号的频率10Hz<Ftb<100Hz时,移相触发范围约为10°<T3<145°。试验结果表明:该控制器不仅集成度高,而且控制精度高,性能稳定可靠,对励磁系统的控制性能有显著的提高。Considering the stability problem of the pulse in analog SCR trigger circuit, FPGA based phase-shifted trig- ger controller for SCR is designed in this paper. This controller adopts modularization design, and uses FPGA as the core unit. Uk is used as the control signal to generate wide pulse signal for the phase-shifted trigger of the SCR. When the frequency of synchronized signal is between 10Hz and 100Hz, the range of phase shift is about from 10° to 145°. The results show that the controller has high integration, high precision, and the control quality is stable and reliable. Therefore, it provides improved control performance for excitation systems.

关 键 词：励磁系统 可控硅 移相触发 FPGA 

分 类 号：TM743[电气工程—电力系统及自动化]