1000 MW机组汽轮机DEH系统失电保护优化  

Optimization of Power Loss Protection for DEH System of 1000 MW Steam Turbine

作　　者：张久洲 ZHANG Jiuzhou(Guangdong Datang International Chaozhou Power Generation Co.,Ltd.,Chaozhou 515723,China)

机构地区：[1]广东大唐国际潮州发电有限责任公司,广东潮州515723

出　　处：《电工技术》2021年第14期1-2,共2页Electric Engineering

摘　　要：介绍潮州发电公司2×1000 MW机组高压抗燃油型数字电液调节系统(DEH)的电源配置情况,以及DEH失电汽轮机跳闸主保护方案的实现方式,分析了DEH失电监视继电器电源存在的安全隐患,利用机组停备机会对DEH失电监视继电器的电源进行优化,实现每个继电器独立供电,提高了机组运行的安全性和可靠性。The power configuration of the high-pressure fuel-resistant digital electro-hydraulic regulation system(DEH)of Chaozhou Power Generation Company's 2×1000 MW unit,and the implementation of the main protection scheme of the DEH power-loss steam turbine trip are introduced.The hidden danger of DEH power failure monitoring relay power supply is analyzed.The power supply of DEH power loss monitoring relay is optimized by using the unit shutdown opportunity to realize the independent power supply of each relay and improve the safety and reliability of unit operation.

关 键 词：1000 MW 数字电液调节系统 失电 监视继电器 电源优化 

分 类 号：TM621[电气工程—电力系统及自动化]