功率因数合格率是衡量电网无功电压控制水平的关键指标,关系到电网的无功平衡、电压质量和系统稳定,对电网的安全、稳定、优质运行有着非常重要的意义,同时它也是同业对标的一项重要指标。

A design schema is put forward concerning dispatching operation order system based on SCADA system for regional power grid.The system obtains power grid model and real-time operation mode by SCADA system as supporting platform.It solves the interface instability of traditional operating order system with SCADA system.The system simulates to form operation order with actual grid modal data,and then implements system topology five-anti check and power flow check during simulation in order to create operation order accurately.The process reaches to pre-analyze and pre-control objection before dispatching operation.The system developed has been put into operation in Quzhou dispatching center,the running results show that the system reduces work intensity of dispatchers to a great extent,increases the speed and quality of forming operation ticket,and greatly improves the level of dispatching management.

根据变电站电压无功监控系统(VQC)动作原理,分析一起变电站VQC振荡动作过程,从电压分接头调节及灵敏度效应等方面分析系统振荡的原因,提出解决问题的建议.

在电力调度工作中,调度误操作时有发生,如何有效地扼杀误调度事故发生的隐患,成为调度管理人员的重点工作。介绍一种拟票管理办法,通过制定拟票流程、开发拟票辅助工具的小程序、滚动修改相应运行资料等措施,用以降低操作票的修改率。

虽然误调度事故没有电气误操作事故那么频繁,但误调度事故可能引起的后果往往比误操作更加严重,影响范围更大.纵观各种误调度事故,基本都是由于操作过程监护不到位而引起的.现介绍一种在调度操作中充分利用各种可以利用的信息实现计算机辅助监护操作的办法.衢州电力局利用该机制编制的软件系统已在该地区调度运行了近2年,取得了非常满意的效果.