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Synchronization of Hybrid Microgrids with Communication Latency

机译：具有通信延迟的混合微电网同步

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摘要

A distributed cooperative control scheme is proposed in order to implement a distributed secondary control for hybrid lossy microgrids. The designed distributed control is able to synchronize the frequency of inverse-based distributed generators (DGs) and minisynchronous generators (MSGs/SGs) to the desired state with a virtual leader DG/SG (reference value) in a distribution switching network under the existence of time-varying communication delays. The secondary control stage selects suitable frequencies of each DG/SG such that they can be synchronized at the desired set point. Using the proposed algorithm, each DG/SG only needs to communicate with its neighboring DGs/SGs intermittently even if the communication networks are local, the topology is time-varying, and the communication delays may exist. Therefore, the failure of a single DG/SG will not produce the failing down of the whole system. Sufficient conditions on the requirements for the network connectivity and the delays boundedness which guarantees the stability and synchronization of the controlled hybrid lossy microgrid power systems are presented. The feasibility of the proposed control methodology is verified by the simulation of a given lossy microgrid test system.
机译：为了实现混合有损微电网的分布式二次控制，提出了一种分布式协同控制方案。设计的分布式控制能够在存在的情况下，通过配电交换网络中的虚拟领导者DG / SG（参考值）将基于逆向的分布式发电机（DG）和微型同步发电机（MSG / SG）的频率同步到所需状态。随时间变化的通信延迟。辅助控制级选择每个DG / SG的合适频率，以使它们可以在所需的设定点处同步。使用所提出的算法，每个DG / SG都仅需要间歇性地与其相邻的DG / SG进行通信，即使通信网络是本地的，拓扑随时间变化并且可能存在通信延迟。因此，单个DG / SG的故障将不会导致整个系统的故障。提出了满足网络连接性要求和时延有界性的充分条件，以保证受控混合有损微电网系统的稳定性和同步性。通过对给定的有损微电网测试系统的仿真，验证了所提出的控制方法的可行性。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第17期|586260.1-586260.10|共10页
  • 作者

    Lai Jingang; Zhou Hong; Hu Wenshan; Lu Xiaoqing; Zhong Liang;

  • 作者单位

    Wuhan Univ, Dept Automat, Wuhan 430072, Peoples R China.;

    Wuhan Univ, Dept Automat, Wuhan 430072, Peoples R China.;

    Wuhan Univ, Dept Automat, Wuhan 430072, Peoples R China.;

    Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China.;

    Wuhan Univ, Dept Automat, Wuhan 430072, Peoples R China.;

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