非理想通信条件下微电网分布式有功功率控制  

Distributed Active Power Control of MicrogridsUnder Non-ideal Communication

作　　者：王满商 邓思成 郑天文 陈来军[2] 梅生伟[2] 李正明[1] WANG Manshang;DENG Sicheng;ZHENG Tianwen;CHEN Laijun;MEI Shengwei;LI Zhengming(School of Electrical Information and Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu Province China;Department of Electrical Engineering,Tsinghua University,Haidian District,Beijing100084,China;Sichuan Energy Internet Research Institute,Tsinghua University,Chengdu 610213,Sichuan Province,China)

机构地区：[1]江苏大学电气信息工程学院,江苏省镇江市212013 [2]清华大学电机工程与应用电子技术系,北京市海淀区100084 [3]清华四川能源互联网研究院,四川省成都市610213

出　　处：《电网技术》2021年第2期680-688,共9页Power System Technology

基　　金：国家自然科学基金项目(51567021)。

摘　　要：一致性控制是目前微电网控制领域主流的分布式控制方法之一。一致性控制系统的正常运行依赖于可靠的分布式控制器和通信网络。然而,通信网络中不可避免存在各种非理想因素,其中的通信干扰将导致电网中分布式电源出力以及电网频率出现偏差,甚至危及电网的安全运行。针对微电网一致性控制中的通信干扰,分析了干扰对系统控制性能的影响。进一步,提出了一种含状态观测器的分布式有功功率控制策略,给出了含事件触发机制的可变增益系数设计方法,分析了所提分布式控制策略在非理想通信条件下的动态性能,理论证明了该策略对典型形式的通信干扰具有良好的抑制能力,可显著提升微电网运行的可靠性。仿真和实验结果验证了所提策略的正确性和有效性。Consensus-based control is one of the most widely used distributed control methods in microgrids. The operation of a consensus-based control system depends on reliable distributed controllers and communication networks, where non-ideal factors, especially communication disturbances, will lead to deviations in distributed generators’ active power and the bus frequency or even threaten the security of the microgrids. This paper focuses on the communication disturbances in microgrids and analyzes the influence of the disturbances. Moreover, a distributed active power control strategy with a state observer is proposed, which includes an event-triggered control gain. The proposed strategy can eliminate the influences of various types of communication disturbances and significantly improve the reliability of microgrids’ communication networks. The correctness and effectiveness of the proposed strategy are verified by simulation and experimental results under various conditions.

关 键 词：微电网 一致性算法 有功功率控制 通信干扰 状态观测器 事件触发 

分 类 号：TM721[电气工程—电力系统及自动化]