交流二次回路多点接地的解决方案  

Many-place earthing solution of the AC secondary circuit

作　　者：张志军[1] 孟庆波[1] 

机构地区：[1]郑州铁路职业技术学院电气工程系,河南郑州450052

出　　处：《电力系统保护与控制》2009年第23期125-129,共5页Power System Protection and Control

摘　　要：分析了电力系统交流二次回路多点接地产生的原因和危害,论证了利用嵌入式系统的高实时性,采用信号注入法实现交流二次回路多点接地在线监测的可行性,同时介绍了系统硬件配置与软件结构特点。通过理论研究和现场实验测试,本方案的实施可以对交流二次回路发生多点接地情况进行有效监测,迅速解决由交流二次回路接地引发的故障,从而提高电网运行的安全性与稳定性。This paper analyzes the reason and the jeopardy of the many-place earthing of electrical power system AC secondary circuit. It proves the feasibility of using high real-time of embedded system and adopting the signal injection method to implement AC circuit on-line monitor. Simultaneously, it introduces the system hardware configuration and the software architecture characteristic. Through the fundamental research and the scene experiment, this plan can effectively monitor many-place earthing of the AC secondary circuit and solve the earth fault, and thus enhances the electrical network security and stability.

关 键 词：二次回路 嵌入式系统 信号注入 监测 接地 

分 类 号：TM862[电气工程—高电压与绝缘技术]