摘要
由于快关汽门的控制量受汽门关闭速度的限制,因此,采用线性最优控制理论来解决快关汽门问题存在缺陷。本文根据庞特里雅金最大值原理提出了一种快关汽门最优控制方法。该方法考虑了快关汽门中控制量的非线性。此外,由其求得的控制规律满足断续型暂稳紧急控制的要求。本文控制方法不存在奇异现象。通过三个系统的计算证明该方法正确。
Because control variable U (t) for fast valving is restricted by the stroke and velocity of valve, therefore, linear optimal control theory can not effectively be used to solve the problem of fast valving. This paper recommends a new control approach for fast valving based on maximum principle, in which the limitation of control variable U (t) is considered. It can automatically distinguish and adapt the changes of fault condition and operation mode. In addition, the control method given in this paper meets the need of discrete transient stability control. There is no singular solution in this control method. The results of calculation through three system show that this approach is correct.
出处
《电力系统自动化》
EI
CSCD
北大核心
1993年第8期17-22,共6页
Automation of Electric Power Systems
关键词
汽轮发电机
阀门
最优控制
Maximum Principle, Fast Valving, Inequality Bounds, Optimal Control
