自动电压控制(AVC)系统在500kV变电站应用存在问题分析  

Analysis on Problems of Automatic Voltage Control Application(AVC) in 500kV Substation

作　　者：孟荣[1] 尹子会[1] 褚罡[2] 

机构地区：[1]国网河北省电力公司检修分公司,石家庄050071 [2]国网河北省电力公司,石家庄050000

出　　处：《电气技术》2016年第5期125-127,共3页Electrical Engineering

摘　　要：本文介绍了自动电压控制(AVC)系统的控制原理及分层分区的总体结构,分析了AVC系统在500k V变电站实际运行中发生的故障和存在的问题,针对AVC系统的控制策略提出增加电抗率投切策略和优化事故闭锁逻辑的建议,针对AVC系统在变电站相关设置采取了增设控制硬压板和调整遥控下发时间间隔的措施。最后,展望了新技术应用带给AVC系统的影响,建议在控制策略中关联重要告警信息以及利用新型远动机实现多重闭锁。以上措施及建议将进一步提升AVC系统运行的安全性和可靠性。This paper introduces the control principle and hierarchical and regional structure of automatic voltage control（AVC） system. It analyzes the faults and problems of automatic voltage control system application in the 500 kV substation. Increasing the reactance rate switch strategy and improving the fault blocking strategy are proposed for switch strategy of the AVC system. The measures that add the hard control panel and adjust the interval of remote control are adopted for related settings in substation. Finally, it prospects the effect of new technique application on the AVC system, and suggests that the switch strategy may correlation with important warning information and the new type remote terminal unit may realize the multiple blocking functions. All of these measures and proposals will further promote the security and the reliability of the AVC system.

关 键 词：变电站 自动化电压控制 控制策略 电抗率 智能电网调度技术支持系统 远动机 

分 类 号：TM63[电气工程—电力系统及自动化]