地区电网无功优化实时控制系统的研究与开发

RESEARCH AND DEVELOPMENT OF REAL-TIME CONTROL SYSTEM FOR REACTIVE POWER OPTIMIZATION

无功的优化与控制关系到电力企业自身的经济效益。提出的地区电网无功优化实时控制系统基于现有地调主站的调度自动化系统 (SCADA/EMS) ,SCADA将实时的数据断面发送给EMS,EMS利用遗传算法求解整个电网的无功优化问题 ,并根据优化解给出控制方案 ,再通过SCADA系统的下行命令通道执行优化控制方案 ,完成闭环控制。文中重点论述了遗传算法应用于实时控制系统的优势 ,并且解决了一些在实时控制过程中遇到的技术问题。现场应用表明 ,该系统可以方便灵活地满足实时控制所提出的各种要求 ,具有较好的实时性和鲁棒性。

A reactive power optimization and control system is becoming more and more important for electric power companies. The reactive power optimization and real-time control system presented is based on the SCADA/EMS framework. EMS gets real-time data of power system from SCADA to run state estimate (SE) function and online load flow (OLF) function. Then genetic algorithm (GA) has been used to complete the reactive power optimization and the remote control and remote regulating function of SCADA to operate the control scheme. Moreover, the advantages of genetic algorithm to be used in a real-time control system and the solution of some engineering problems are analyzed. Field applications show that the system is convenient and flexible to satisfy the requirement of real-time control.