并行前馈给水控制策略及其在1000MW机组应用  

Feed Water Control Strategy with Advanced Parallel Control and Its Applications to 1 000 MW Units

作　　者：朱亚清[1] 张曦[1] 黄卫剑[1] 李锋[1] 

机构地区：[1]广东电网公司电力科学研究院,广州510080

出　　处：《南方电网技术》2010年第A01期76-79,共4页Southern Power System Technology

摘　　要：火电机组辅机故障减负荷(RUNBACK,简称RB)的成功对保证机组稳定可靠运行意义重大。针对1 000 MW超超临界机组发生RB工况时的锅炉给水控制进行分析,提出了采用动态并行前馈的锅炉给水流量调节控制策略,给出前馈信号在给水泵投入台数发生变化时的无扰处理以及RB过程给水流量调节加速的方法。在海门电厂实际试验结果表明,所提出的控制策略能实现稳定、准确的给水控制。Successful RUNBACK is of importance to ensure the safety and stability of thermoeletricity units.Analyzing the boiler feed water control during the RB process of 1 000 MW ultra supercritical unit,this paper proposes a novel feed water control strategy that adopts dynamic feed forward control,and provides methods to deal with the feed forward signal without disturbation as the number of feed water pump changing,the feed water flow speeding up in the RB process as well.The experimental results in Haimen Power Plant show that the proposed strategy can realize stable and accurate feed water control.

关 键 词：超超临界机组 给水控制 燃水比 前馈控制 辅机故障减负荷 APS 

分 类 号：TK323[动力工程及工程热物理—热能工程]