摘要
在750 kV的超高压供电系统中提出了一种能够融合于超高压断路器就地智能汇控终端的智能继电保护技术。该技术通过用于记录外部数据的传感器采集相关信息,并考虑外部因素对短路电流的影响,利用收集到的初始数据创建多维数学模型,以计算继电保护设定点的校正电流,对继电保护参数的计算更精确,同时提高了继电保护的灵敏度。然后通过可以就地安装于断路器本体的微控制器进行计算和信息传递,进而实现对断路器的智能控制。
An intelligent relay protection technology is presented in the ultra high voltage distributed power supply system of 750 kV,which collects relevant information through several sensors used for recording external data,and considers the influence of external factors on short circuit current,the multi dimensional mathematical model is established by using the collected initial data to calculate the correction current of the set point of relay protection,and the calculation of relay protection parameters is more accurate,and the sensitivity of relay protection is improved.Then the intelligent control of the circuit breaker is realized through the calculation and information transmission of the micro controller which can be installed on the circuit breaker body.
作者
杨晨
刘志远
陆洪建
梁守硕
赵健
YANG Chen;LIU Zhiyuan;LU Hongjian;LIANG Shoushuo;ZHAO Jian(Ultrahigh Voltage Company,State Grid Ningxia Electric Power Company,Yinchuan 750001,China;Nantong Xintu Information Technology Co.,Ltd.,Nantong 226000,China)
出处
《机械与电子》
2023年第8期45-48,共4页
Machinery & Electronics
基金
国网宁夏电力有限公司科技项目(5229CG22000N)。
关键词
继电保护
数学模型
断路器
智能控制
relay protection
mathematical model
circuit breaker
intelligent control
