An Event-Triggered Approach for Load Frequency Control With Supplementary ADP
An Event-Triggered Approach for Load Frequency Control With Supplementary ADP
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DOI：
10.1109/tpwrs.2016.2537984
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发表时间：
2017
影响因子：
6.6
通讯作者：
Lu Dong;Yufei Tang;Haibo He;Changyin Sun
中科院分区：
文献类型：
--
作者：
Lu Dong;Yufei Tang;Haibo He;Changyin Sun
现代电力系统正朝着新一代智能电网的方向发展，最新的基于计算机的通信网络技术带来了巨大的好处。此外，随着相位测量单元（pmu）的逐步部署和智能电表的使用，实时系统测量将大幅增加。在这种趋势下，事件触发控制（ETC）将在降低通信和计算成本方面发挥重要作用。本文提出了一种新的基于辅助自适应动态规划（ADP）的负载频率控制（LFC） ETC体系结构设计。主比例积分（PI）控制器使用不同的比例和积分阈值来更新动作，而辅助ADP控制器以非周期方式更新。系统地介绍了一种参数计算策略，并对闭环事件触发系统的最终有界性进行了理论分析。在单区域和三区域的IEEE LFC基准上进行了仿真研究，结果证明了所提出设计的效率和有效性。
The modern power system is evolving towards a new generation of smart grid, with significant benefits from the latest computer-based communication network technologies. Furthermore, as the incremental deployment of phase measurements units (PMUs) and the use of Smart Meters, there will be a substantial increase of the real-time system measurements. Under this trend, event-triggered control (ETC) will play an important role in reducing the communication and computation cost. In this paper, a novel ETC architecture design for load frequency control (LFC) with supplementary adaptive dynamic programming (ADP) is presented. The primary proportional-integral (PI) controller uses different proportional and integral thresholds for updating the actions, while the supplementary ADP controller is updated in an aperiodic manner. A strategy for the parameters calculation is introduced in a systematic way, and theoretical analysis of the ultimate boundedness for the closed-loop event-triggered system is also included. Simulation studies are carried out on one-area and three-area IEEE LFC benchmarks, and the results demonstrate the efficiency and effectiveness of the proposed design.