改进型直接能量平衡控制策略在机组变工况下的应用  

Application Of Improved Direct Energy Balance Control Strategy on Unit Load Changed Conditions

作　　者：赵大伟 王雁军 周建玉 

机构地区：[1]三河发电有限责任公司,河北三河065201 [2]南京国电南自美卓控制系统有限公司,江苏南京210023

出　　处：《华北电力技术》2015年第12期48-52,共5页North China Electric Power

摘　　要：分析了目前几种常见的协调控制策略,在直接能量平衡协调控制策略的基础上,结合前馈控制,针对三河电厂1号机组设计出适合亚临界机组的协调控制策略。该方法在变工况响应过程中,大大减少了主蒸汽压力动态偏差,AGC调节性满足电网考核指标,取得较好的动态调节性能。Three common coordinated control system strategies were analyzed in this paper. Based on the coodinated control system with direct energy balance, and the feedforward control. The subctritical units coordinated control sytem was desiged for Sanhe Power Plant Unit 1. This method was used in the load changed process ,and the maxi- mum dynamic fluctuation of the main steam pressure was less than 0.6 MPa,and the auto-generation control regula- ting capacity was meeting the grid indicators for performance check. The good dynamic regulating characterstic was a- chieved.

关 键 词：协调控制 变工况 主蒸汽压力 调节特性 DEB 燃料量 大延迟 

分 类 号：TK32[动力工程及工程热物理—热能工程]