基于测控的远方同期并网高级应用研究
2018-01-03杨云翠李成文胡建明张颖
杨云翠 李成文 胡建明 张颖
摘 要:通过对测控装置同期功能、同期合闸模式、同期触发条件、变电运行模式、调控端远方同期并网五个现状的深入分析,提出测控装置同期功能不满足调控端远方同期并网的要求,需对测控装置的同期功能进行改进,文中介绍了包含同期闭锁情况反馈调控端和自动远方同期并网预估功能的测控同期高级应用,并重点对自动远方并网同期预估功能的原理及数学模型进行了介绍,通过应用分析,研究内容能提高调控端远方并网成功几率,提升事故处置速度。
关键词:测控;远方;同期并网;闭锁反馈;预估
中图分类号:TM76 文献标志码:A 文章编号:2095-2945(2018)32-0161-03
Abstract: Through the in-depth analysis of five current situations, the synchronous function of the measurement and control device, the synchronous closing mode, the synchronous triggering condition, the operation mode of the substation, and the synchronous power grid connection at the remote control end, it is pointed out that the synchronization function of the measurement and control device can not meet the requirements of the remote synchronization of the regulating end, and the synchronization function of the measurement and control device needs to be improved. This paper introduces the advanced application of measurement and control synchronization, which includes feedback control end and automatic remote synchronization prediction function, and focuses on the principle and mathematical model of automatic remote synchronization prediction function. Through application analysis, the research content can improve the success probability of remote connection of regulatory end as well as the speed of accident disposal.
Keywords: measurement and control; distance; synchronization; locked feedback; prediction
前言
测控装置是用来实现对处于正常运行状态的电力系统开展实时测量、监视和控制等功能的综合性装置[5],变电站测控装置除了包含基本的遥测、遥信、遥控和遥调功能外,还包含了同期功能,测控装置的同期功能主要应用于断路器合闸方式的出口判断。随着变电站无人值班改造及调控一体化工作的大力推广应用,变电站现场已实现运行工作无人值守,变电站监视控制业务转移至调控端开展,电网正常的操作及事故处理均由调控端直接下发控制命令完成,测控装置的同期执行结果不具备调控端的远方查询和调阅,在同期闭锁引起遥控并网不成功时,将严重影响调控员的操作和事故处置速度,由于小电网孤网运行时间过长,甚至可能引发更大的电网事故,开展测控同期功能与调控运行模式相匹配将迫在眉睫。……
