个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:电气工程学院
学科:电机与电器. 高电压与绝缘技术. 电力电子与电力传动
办公地点:大连理工大学电气工程学院电力电子研究所407
联系方式:mfliao@dlut.edu.cn
电子邮箱:mfliao@dlut.edu.cn
Investigation on Phasing Controlled Vacuum Circuit Breaker for Switching Overvoltage of 110kV Power System
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论文类型:会议论文
发表时间:2016-01-01
收录刊物:CPCI-S
关键字:vacuum circuit breaker; controlled switching; overvoltage; pre-arcing
摘要:Based on a special angle of voltage or current of power system, controlled switching technology of vacuum circuit breaker is presented to decrease overvoltage and inrush current due to the power equipment operating such as transmission line closing and no-load transformer closing. The optimum switching instant and synchronous switching control strategies are given by synthetically considering closing action time dispersion and pre-strike characteristic of vacuum circuit breaker. The optimal target points of the controlled switching technology are deduced and calculated by Matlab. The switching over voltages are simulated by statistical in ATPdraw. Simulation results show that the closing voltage of transmission can be reduced to 2.35 p.u. and switching voltage of transformer can be reduced to 1.85 p.u.. So the theoretical analysis and synchronous switching control strategies in the article are verified correctly.