On implementations of H 2 preview output feedback law with application to LFC with load demand prediction
On implementations of H 2 preview output feedback law with application to LFC with load demand prediction
复制标题
H 2 预览输出反馈定律的实现及其在负载需求预测的 LFC 中的应用
DOI：
10.1080/00207179.2018.1506156
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发表时间：
2018
影响因子：
2.1
通讯作者：
T. Masuta
中科院分区：
文献类型：
--
作者：
K. Hashikura;Ryo Hotchi;A. Kojima;T. Masuta
摘要研究了输出反馈整定中的连续时间预见控制问题。通过状态变换方法，证明了最优输出反馈律有两种不同的实现方式。第一种和第二种实现分别具有类似于输入时滞系统的Smith预测器和基于观测器的预测器的结构。为了说明最优控制律的特点，我们设计了一个利用负荷需求预测的负荷频率控制系统。虽然随之而来的预测误差阻碍了性能的提高，但加权函数技术证明了这种不利影响得到了缓解。
ABSTRACT This paper addresses a continuous-time preview control problem in output feedback setting. By a state transformation approach, it is shown that the optimal output feedback law is implemented in two different ways. The first and second implementations have the structures similar to the Smith and observer-based predictors for input-delay systems, respectively. In order to illustrate the features of the optimal control law, we design an Load Frequency Control system, which utilises load demand prediction. Although the accompanying prediction error obstacles the performance improvement, it is demonstrated that the adverse effect is mitigated by the weighting function technique.