Adaptive Event-Triggering H-infinity Load Frequency Control for Network-Based Power Systems
Adaptive Event-Triggering H-infinity Load Frequency Control for Network-Based Power Systems
复制标题
基于网络的电力系统的自适应事件触发 H 负载频率控制
DOI：
10.1109/tie.2017.2726965
复制
发表时间：
2018
影响因子：
7.7
通讯作者：
Yan Huaicheng
中科院分区：
文献类型：
--
作者：
Peng Chen;Zhang Jin;Yan Huaicheng
负荷频率控制是保证电力系统稳定、安全运行的重要手段。然而，由于多区域电力系统中引入了通信网络，传统的LFC方法不再有效。这促使我们研究一种适用于多区域电力系统的自适应事件触发H∞LFC方案。与现有的时不变事件触发通信方案相比，提出了一种自适应事件触发通信方案，该方案可以动态调整事件触发阈值以节省有限的网络资源，同时保持理想的控制性能。与现有的基于仿真的方法（必须事先知道控制器）相比，本工作中导出的稳定性和稳定化准则可以提供一种权衡，以平衡所需的通信资源和期望的控制性能。通过两个算例验证了该方法的有效性。
Load frequency control (LFC) is a very important method to keep the power systems stable and secure. However, due to the introduction of communication networks in multi-area power systems, the traditional LFC method is not effective again. This motivates us to investigate an adaptive event-triggering H∞LFC scheme for multi-area power systems. Compared with the existing time-invariant event-triggering communication scheme, an adaptive event-triggering communication scheme is presented, where the event-triggering threshold can be dynamically adjusted to save more limited network resources, while preserving the desired control performance. Compared with the existing emulation-based method, where the controller must be known a priori, the stability and stabilization criteria derived in this work can provide a tradeoff to balance the required communication resources and the desired control performance. The effectiveness of the proposed method is verified by two numerical examples.