自适应电流速断保护在智能配电网中的应用  

Application of Fast Tripping Adaptive Current Protection in Intelligent Power Distribution Network

作　　者：张海梁[1] 孙婉胜[2] 

机构地区：[1]浙江省电力公司,浙江杭州310015 [2]杭州萧山供电局,浙江杭州311200

出　　处：《低压电器》2011年第20期5-7,10,共4页Low Voltage Apparatus

摘　　要：比较分析了配电网电流速断保护与自适应电流速断保护的区别。利用BP人工神经网络进行建模和仿真试验。仿真试验表明,基于人工神经网络的自适应电流速断保护,对配电网在不同运行方式下的不同类型的区内、外故障都能正确地进行模式识别,间接找出系统等效阻抗变化规律,实现了自适应电流速断保护的功能,为智能配电网的发展提供了技术保证。The differences of fast tripping current protection and fast tripping adaptive current protection were analyzed and compared. The BP artificial neural network model was built. The simulation test indicates that the fast tripping current protection using artificial neural network model can adapt the operation mode of power distribution network and the protection can identify the regional and foreign fault and maintain protection range. It provides teehnoical supports for the development of intelligent power distribution network.

关 键 词：自适应电流速断保护 人工神经网络 智能配电网 

分 类 号：TM774.2[电气工程—电力系统及自动化]