电力市场下机组变负荷速率控制与寿命管理技术支持系统的研究  

STUDY ON THE AUTOMATIC CHANGING LOAD-ACCELERATION CONTROL AND ON-LINE LIFE MANAGEMENT SYSTEM OF STEAM TURBINE GENERATOR UNIT BASED ON POWER MARKETS

作　　者：梁志宏[1] 杨昆[1] 孙耀唯[1] 岳建华[1] 徐鸿[1] 顾煜炯[1] 

机构地区：[1]华北电力大学,北京市昌平区102206

出　　处：《中国电机工程学报》2005年第20期100-105,共6页Proceedings of the CSEE

摘　　要：文章提出了调峰机组以最佳的变负荷速率来响应电网自动发电控制(AGC)指令的新思路。首先,深入研究了我国引进型300MW汽轮机热状态和控制系统,总结出一套通过控制机组的变负荷速率来优化机组运行状态的方法。其次,攻克了进口数字式电液调节系统(DEH)接口难题,并利用国内外相关的成熟理论、结合现代计算机与通信技术开发了一套在线的“机组变负荷速率控制与寿命管理技术支持”系统,特别设法解决了换热系数、材料比热和导热系数等物性参数的时变性问题。最后,利用开发的系统对机组冷态启动曲线进行了仿真,结果表明系统完全符合机组的性能,并能够满足AGC变负荷速率的要求。In this paper, a new concept that steam turbine generator unit quickly responds to the director of Automatic generation control （AGC） by optimal Changing Loadacceleration is presented. Firstly, the paper dedicated to the study an approach for the generator unit to automatically select optimal Changing Load-acceleration according to its thermodynamic and stress conditions. Secondly, the paper got over the compatible problem of Digital Electro-Hydraulic System （DEH）. Based on the presented method and new technology of computer and communication, a System on ＂Automatic Changing Load Acceleration Control and On-Line Life Management of Steam Turbine Generation Unit＂ has been developed, it emphasizes on solving timely changing characteristics of coefficient of convective heat transfer, thermal conductivity, and specific heat at different load growth levels. Thirdly, to apply the developed system, the paper simulates and analyses the start-up curve of the 300MW steam turbine generation unit, the result proved to be entirely according with demands of the generator unit＇s performance and quickly responding to the director of AGC.

关 键 词：热能动力工程 发电机组 自动控制 变负荷速率 寿命管理 

分 类 号：TM311[电气工程—电机]