雷击类型鉴别装置改进研究  

Study on Improvement of Lightning Strike Type Identification Device

作　　者：王巨丰[1] 周锦宏[1,2] 唐捷[1] 林盛强[1] 陆俊杰 

机构地区：[1]广西大学电气工程学院,广西南宁530004 [2]广西电网崇左供电局,广西崇左532200 [3]广西电网凭祥供电公司,广西凭祥532600

出　　处：《广西电力》2011年第3期7-9,19,共4页Guangxi Electric Power

摘　　要：根据已投入试运行于110 kV探昙I线的雷击类型鉴别装置的反馈情况,针对其在运行中出现的问题,提出改进建议。为纠正这些问题,改进联合微控制器(MCU)和状态锁存器原装置内部电路,并利用PROTEUS仿真测试新电路的效果,最后通过冲击电流实验进行对比分析。仿真表明,新电路能有效滤除杂波,检测有效脉冲作用时间的长度。仿真和实验证明,改进后的装置降低方向误判几率,提高了雷击类型鉴别的精确度,为完善雷击鉴别装置提供可靠的理论依据。According to the feedback information from the lightning stroke type identification device which has been put into trial operation on the 110 kV TAN-Tan I transmission line,suggestions are proposed for problems in the operation.In order to solve these problems,microcontroller（MCU） and status latch were used to improve the original internal circuit,PROTEUS based simulations were made to test the effect of new circuit and to compare with impact current experiments.Simulation results show that the new circuit can filter clutter effectively and detect the action time of effective pulse.Simulation and experiment results prove that the modified device can reduce the risk of direction misjudgment and improve the accuracy of lightning strike type identification,which provides reliable theoretical basis for the improvement of lightning strike type identification device.

关 键 词：输电线路 绕击 反击 罗氏线圈 微控制器 

分 类 号：TM862[电气工程—高电压与绝缘技术]