首页|事件触发改进一致性算法的孤岛运行多逆变器微电网系统分布式二次调频方法

事件触发改进一致性算法的孤岛运行多逆变器微电网系统分布式二次调频方法

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
一致性算法常用于孤岛运行多逆变器并联微电网系统分布式二次调频控制，对逆变器之间通信的实时性要求很高。对此，该文提出基于频率补偿信号的改进一致性算法，基于频率误差越限建立事件触发机制，维持逆变器之间已有的下垂关系不变，实现孤岛运行多逆变器微电网系统二次调频。同时，基于该事件触发机制和李雅普诺夫函数，获得最短触发时间下界，完全避免了在短时间内无限次事件触发现象的发生。最后，采用MATLAB/Simulink针对包含4台逆变器并联运行的孤岛微电网系统算例进行仿真，结果表明，提出的方法相比文献采用的基本一致性算法通信量减少 99%以上，最短触发时间间隔延长至数十 ms 量级;同时，由于该文方法不使用功率微分信号，微电网系统的动态性能更好。
Event-triggered Improved Consensus Algorithm Distributed Secondary Frequency Regulation of Multi-inverter Microgrid Systems With Islanded Operation
Consensus algorithm is commonly used for distributed secondary frequency regulation control of multi-inverter parallel microgrid systems operating in isolation,which requires high real-time performance for communication between inverters.An improved consensus algorithm based on frequency compensation signal is adopted and an event trigger mechanism based on the frequency error crossing limit is designed,which can maintain the existing droop relationship between inverters and realize the secondary frequency regulation of a multi-inverter microgrid system operating in islanded mode at the same time.Meanwhile,based on this event triggered mechanism and Lyapunov function,the minimum trigger time lower bound is obtained,which completely avoids the phenomenon of infinite event triggers in a short period of time.Finally,MATLAB/Simulink is used to simulate the operation of an islanded microgrid system containing four inverters in parallel.The results show that the communication volume of the proposed method is reduced by more than 99%compared with the basic consistency algorithm used in the literature,and the minimum trigger time interval is extended to the order of tens of milliseconds.In the meantime,the dynamic performance of the microgrid system is better because the proposed method does not use the power differential signal.

islanded microgriddistributed secondary frequency regulationimproved consensus algorithmevent triggeredLyapunov function

董家伟、龚春阳、包俊、朱国忠、王志新

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上海交通大学电子信息与电气工程学院,上海市 闵行区 200240

上海电力大学电气工程学院,上海市 浦东新区 200090

上海禧龙科技股份有限公司,上海市 金山区 201517

上海正泰电源系统有限公司,上海市 松江区 201614

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孤岛微电网系统 分布式二次调频 改进一致性算法 事件触发 李雅普诺夫函数

国家重点研发计划国家重点研发计划上海市科委科技项目上海市科委科技项目

2018YFB15030002018YFB 15030012018YFB15030002018YFB1503001

2024

10.13334/j.0258-8013.pcsee.222048

中国电机工程学报
中国电机工程学会

中国电机工程学报

CSTPCD北大核心
影响因子：2.712
ISSN：0258-8013
年,卷(期)：2024.44(2)
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