两座电站厂用电互为备用供电方式研究与应用  

Research and Application of Mutual Backup Power Supply Mode for Auxiliary Power Between Two Power Stations

作　　者：葛勇 李远军 GE Yong;LI Yuanjun(Centralized Control Center of Guizhou Wujiang Hydropower Development Co.,Ltd.,Guiyang 550002,China)

机构地区：[1]贵州乌江水电开发有限责任公司集控中心,贵州贵阳550002

出　　处：《红水河》2025年第2期132-135,139,共5页

摘　　要：笔者以贵州大花水、格里桥水电站厂用电系统为研究对象,提出厂用电互为备用的供电方案。首先系统梳理两座电站原有厂用电接线方式及运行特性,分析原独立供电模式存在的安全隐患。通过架设10kV大格线联络线路,实现两座电站厂用电源的智能切换与互为备用。然后分析了两座电站在厂用电系统互联情况下的运行风险,提出相应的运行建议,并明确备自投装置的使用方案。实践表明,这种互为备用供电模式不仅提高了厂用电系统的灵活性和安全性,优化厂用电结构,还满足“无人值守”电站的智能化需求,对保障电网安全经济运行具有重要意义。Taking the auxiliary power systems of Dahuashui and Geliqiao Hydropower Stations in Guizhou as research subjects,this paper proposes a mutual backup power supply scheme for auxiliary power.The study begins with systematically analyzing the original power connection configurations and operational characteristics of both stations,identifying safety risks inherent in their independent power supply modes.By constructing a 10 kV Dage interconnection line,intelligent switching and mutual backup between the two stations'auxiliary power sources are achieved.Subsequently,operational risks under interconnected auxiliary power systems are evaluated,with corresponding operational recommendations proposed and a specific implementation scheme for automatic transfer switching devices established.Practical results demonstrate that this mutual backup power supply mode not only enhances auxiliary power system flexibility and safety while optimizing power structure,but also meets the intelligent requirements of“unmanned operation”hydropower stations.This approach holds significant importance for ensuring secure and economical operation of power grids.

关 键 词：厂用电 两座电站 互为备用 供电方式 

分 类 号：TV737[水利工程—水利水电工程]