摘要
基于最优控制原理 ,提出了主蒸汽温度最优反馈控制策略 ,以优化、求解状态反馈矩阵 ,实现用尽量少的减温水量完成蒸汽温度对设定值快而稳的跟踪 ,同时取消PID控制 ,简化了控制系统。此外 ,为克服稳态偏差 ,还给出了一种简便的改进方法 ,即在主蒸汽温度最优反馈策略中增加了稳态偏差判断器和BP网络修正器 ,仿真结果表明效果良好。
Based on optimal feedback control principle, a strategy of optimal feedback control for main steam temperature has been put forward to optimize and resolve the state feedback matrix, realizing rapid and stable followup to setted value of steam temperature by using desuperheating water quantity as little as possible. At the same time, the DID control can be eliminated, and the control system may be simplified. Besides, in order to overcome the steadystate deviation, an improved and simplified method, namely addition of steadystate deviation discriminator and BP network corrector into the optimal feedback strategy for main steam temperature, has been given. Simulation shows that the said method has good effectivenees.
出处
《热力发电》
CAS
北大核心
2004年第1期61-64,共4页
Thermal Power Generation
