摘要
设计了一种用于测量换流阀晶闸管电压分布的光电测量系统 ,该光电测量系统主要由探头、发射电路、接收电路 3部分组成。系统采用脉冲频率调制的原理对信号进行调制 ,其带宽为直流至1.2MHz ,部分响应时间为 12 0ns ,最大非线性误差为 1%。实验结果表明 ,所设计的光电测量系统有较强的抗电磁干扰能力和较高的测量精度 ,可以满足测量换流阀晶闸管电压分布的需要。
An optic-electric measurement system for measuring voltage distribution along the HVDC converter valve, consisting of the transmitter, light route arid receiver, is developed. The system operates on pulse frequency modulation of the signal to be measured. Its bandwidth is from DC to 1.2 MHz, its partial response time is 120 ns and its maximum non-linear error is 1%. Experimental results show that this optic-electric measurement system can meet the requirement of measuring voltage distribution of valve with high capability of suppressing electro-magnetic interference and high measurement precision.
出处
《电力系统自动化》
EI
CSCD
北大核心
2003年第14期69-71,共3页
Automation of Electric Power Systems
基金
国家科技攻关计划项目 (980 5 0 2B)~~
关键词
换流阈
晶闸管
电压分布
光电测量系统
Electric converters
Electrooptical effects
Valves (mechanical)
Voltage distribution measurement
