基于改进RLS算法的短路电流相控开断控制系统设计  

Design of Control System for Controlled Fault Interruption Based on Adaptive RLS Algorithm

作　　者：黄智慧[1] 张冬波[1] 邹积岩[1] 董文亮[1] 

机构地区：[1]大连理工大学电气工程学院,大连116024

出　　处：《高电压技术》2016年第10期3214-3220,共7页High Voltage Engineering

基　　金：国家自然科学基金重点项目(51337001);中央高校基本科研业务费专项资金(DUT15RC(4)02)~~

摘　　要：为了快速准确地辨识出短路电流参数并预测可用过零点及判断故障类型,设计了三相短路电流相控开断控制系统。以现场可编程门阵列EP4CE15F17C8N为控制核心,结合AD采样、总线传输等外围电路,设计完成了控制系统的硬件电路。基于相控开断的原理和改进RLS算法,进行了故障初始时刻检测和短路电流的波形恢复,完成了控制系统的软件设计。通过继电保护测试仪搭建实验电路对控制系统相控开断的准确性和稳定性进行了测试。测试结果表明,控制系统能够在故障发生3 ms内准确判断故障发生,短路电流过零开断误差的3σ范围在[-0.240 2,0.416 2]ms以内,满足短路电流相控开断对控制系统速度和准确性的要求。In order to accomplish parameters estimation and prediction of zero crossing point, and determine fault types quickly and accurately, we designed a three-phase controlled fault interruption control system. The hardware of control system has the field-programmable gate array EP4CE15F17C8 N as the controlling core with AD sampling, bus transaction and other peripheral circuits. Based on the principle of controlled fault interruption and adaptive RLS algorithm, the fault initial time detection and waveform recovery were completed, and the software of control system was designed. Moreover, through experimental circuit built by the relay protection tester, we tested the accuracy and stability of the system. The results show that the system can determine the occurrence of fault within 3 ms, and the result of 3σ of zero crossing point errors is [-0.240 2, 0.416 2] ms. This means that the control system meets the demands of the accuracy and speed of controlled fault interruption.

关 键 词：相控开断 改进RLS算法 零点预测 短路电流参数辨识 控制系统 FPGA 

分 类 号：TM76[电气工程—电力系统及自动化]