摘要
为了满足双侧电源供电的线路保护具有选择性,将功率方向作为保护的辅助判据加入到馈线终端的电流保护中,实现馈线终端对所保护的线路具有选择性,并能判别出是系统侧还是负荷侧发生了故障.采用功率方向继电器(或功率方向元件)判断短路功率的方向以选择启动相应保护装置动作的功率方向保护,最终给出了TMS320F2812平台的馈线终端软件实现.通过设备的应用验证了方案的可行性,提高了电网供电的可靠性和稳定性.
In order to satisfy the selectivity of the line protection supplied by two-side power supply,the power direction is added as an auxiliary criterion to the current protection of the feeder terminal to realize the selectivity of the feeder terminal to the protected line,and the fault on the system side or the load side can be distinguished in this paper.The power directional relay(or power directional element)is used to determine the direction of short-circuit power to select the power directional protection to start the operation of the corresponding protection device.The feasibility of the scheme is verified by the application of the equipment,and the reliability and stability of the power supply are improved.
作者
张立
陈振伟
李莉
ZHANG Li;CHEN Zhenwei;LI Li(Department of Management Information,Anhui College of Mining and Technology,Huaibei 235000,China;Department of Management Information,Huaibei Coal Technicians College of Anhui,Huaibei 235000,China;Suixi Power Supply Company,Huaibei 235100,China)
出处
《湖州师范学院学报》
2019年第2期58-61,共4页
Journal of Huzhou University
基金
安徽省教育厅自然科学研究重点项目(KJ2018A0949)
关键词
功率方向保护
馈线终端
软件实现
power direction protection
feeder terminal
software implementation
