智能变电站双测控方案优化设计
2016-03-21刘永钢熊慕文陈桂友朱何荣南京南瑞继保电气有限公司南京211102
刘永钢 熊慕文 尹 凯 陈桂友 朱何荣(南京南瑞继保电气有限公司,南京 211102)
智能变电站双测控方案优化设计
刘永钢熊慕文尹 凯陈桂友朱何荣
(南京南瑞继保电气有限公司,南京211102)
摘要智能化变电站测控装置双重化配置以后,监控信息冗余的同时带来了异源数据的辨识选择和遥控对象惟一性的问题,本文分析了现有双测控配置方案的优缺点,提出了一种由监控系统自主选择主机并根据双机实时运行状况自动切换主备机的策略,本文对双测控的实施方案进行了阐述,提出了一种间隔层测控装置不停电检修的运维方式,适合智能变电站无人值守的趋势。
关键词:智能变电站;测控装置;双重化配置;主备机切换
Optimization of Dual Bay Control Unit Configuration in Smart Substation
Liu Yonggang Xiong Muwen Yin Kai Chen Guiyou Zhu Herong
(NR Electric Co., Ltd, Nanjing 211102)
Abstract With dual configuration of Bay Control Unit(BCU)in smart substation, the monitoring system has became redundant and reliable, but also bring the problem of different data selection and uniqueness for control object. This paper analyzes the advantages and disadvantages of present dual configuration schemes. The strategy of automatic selecting the host by monitoring system according to dual BCU’s real-time running state and automatic switching of the master-slave machine is proposed. In this paper, the implementation scheme of dual BCU is described and operation mode of BCU maintenance without power cut is provides, which is a trend in smart substation.
Keywords:smart substation; bay control unit; dual configuration; master-salve switch
智能变电站是坚强智能电网的重要基础和支撑。随着我国智能变电站的推广建设,站内一次设备信号的采集、测量、控制和监测的可靠性要求越来越高。作为变电站内信息监视和控制的主要实现环节,测控装置的配置方案对监控系统可靠性起着关键性的作用。国内110kV及以下的数字化变电站中采取保护单套配置,测控功能由一套独立的测控或者保护测控一体化装置来实现。为了提高监控系统的可靠性和冗余性,220kV及以上电压等级的数字化变电站,继电保护设备及与之相关的设备、网络等按照双重化的原则进行配置[1],从而引入了测控双重化配置的概念。
测控装置双重化配置具有功能独立、联闭锁可靠性高等特点,可以提高监控系统的冗余性以及防误操作的安全性,当装置出现N-1系统故障时能够不影响系统的正常运行;……
