燃气-蒸汽联合循环机组中汽轮机DEH系统在调试中的问题及分析处理

Problems and Solutions during Commission of Steam Turbine DEH System for the Gas-steam Combined Cycle Unit

介绍了西门子T3000系统在京桥电厂二期燃气-蒸汽联合循环机组汽轮机控制上的应用,结合工程实际,阐述了数字电液控制系统DEH的控制原理,最后针对上海汽轮机厂首台169机型汽轮机控制系统启动调试过程中的几个问题,在原因剖析的基础上,提出解决的措施和预防建议。

This paper introduces the application of Siemens T3000 system in the steam turbine control system of the gas-steam combined cycle unit in Jingqiao Thermal Power Plant. Combined with engineering practice, it elaborated DEH control principle of electro-hydraulic control system. Finally for a few problems in starting and debugging process of Shanghai Turbine Plant＇s first 169 model turbine control system, on basis of cause analysis, it proposed the solution and preventive recommendations.