紧急切负荷网荷互动终端设计与实现

鉴于调控切负荷和营销负控切负荷控制手段都无法同时满足特高压直流线路闭锁故障时负荷紧急控制和保障大型用户重要负荷供电的需要,文中提出了通过改进专变用户终端实现负荷快速控制的方法,设计了一种可满足用户可切负荷精细化采集、实时通讯、多主站安全快速控制的通用型紧急切负荷网荷互动终端,并针对现场的负荷接入、功率计算、跳闸出口设计了一种可灵活配置的解决方案,最终实现终端在用户现场应用,通过实际切负荷测试验证了终端完全满足精准切负荷系统的要求。

Design and Implementation of User Terminal Unit for Emergency Load Shedding

Due to the dispatching and marketing load control method cannot satisfy the load emergency control and the power supply needs of large users and important loads when UHVDC block fault occur,a method is proposed to realize swift load control by improving specialty transformer user terminals in this paper.A common emergency load shedding control terminal is designed to meet the precise acquisition of interruptible load,real-time communication,and multi-master security fast control.A flexible configuration solution is designed for field load access,power calculation and tripping output.Finally,the terminal is applied at the user site.Actual load shedding test verified that the terminal fully meet the requirements of the precision load shedding system.