基于调度自动化系统的断路器动作特性研究及其状态评估  

Analysis and Status Assessment of Circuit Breaker’s Operation Characteristics Based on Power Dispatching Automation System

作　　者：刘少辉 李新 孟泽文 李国伟 唐琪 肖梁贤 LIU Shaohui;LI Xin;MENG Zewen;LI Guowei;TANG Qi;XIAO Liangxian(Foshan Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Guangdong Foshan 528000,China;Xiamen Huadian Switchgear Co.,Ltd.,Fujian Xiamen 361006,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528000 [2]厦门华电开关有限公司,福建厦门361006

出　　处：《高压电器》2019年第6期31-37,共7页High Voltage Apparatus

基　　金：广东电网有限责任公司科技项目(GDKJQQ20152032)~~

摘　　要：针对现阶段调度自动化系统对断路器运行参数关注不够这一现象,对调度自动化系统中有关断路器运行参数进行了深度挖掘。引入了断路器动作时间特性修正参数△t和保护装置出口延时t延时,并对断路器动作时间特性修正参数△t和保护装置出口延时t延时的稳定性进行了评估。通过引入断路器动作时间特性修正参数和保护装置出口延时,提出了基于调度自动化系统的断路器动作时间特性模型。通过大量试验验证表明基于该模型的断路器分、合闸时间服从于正态分布。最后,制定了某型号高压126 kV SF6断路器和中压真空断路器的状态评估策略,具有一定的实际应用价值。Considering the fact that the existing power dispatching automation system pays less attention to operation parameters of circuit breaker,this paper delves into the important operation parameters of a circuit breaker in the power dispatching automation system.The correction parameter of circuit breaker operation time△t and the protector exit delay tdelay are introduced,and their stabilities are evaluated.Subsequently,a model of circuit breaker’s operation time characteristic is established based on the data of power dispatching automation system.A large number of tests verify that the opening and closing time of a circuit breaker based on this model obeys normal distribution.At last,two status assessment strategies are offered for a 126 kV SF6 circuit breaker and a medium-voltage vacuum circuit breaker.

关 键 词：调度自动化系统 断路器 动作特性 状态评估 

分 类 号：TM561[电气工程—电器]