Resilient Distributed Multiagent Control for AC Microgrid Networks Subject to Disturbances

IEEE Transactions on Systems Man and Cybernetics Systems, vol. 52, pp. 43–53

Abstract

In actual microgrids (MGs) networks, the information exchange between distributed energy resources (DERs) agents may be subject to various types of measurement noises and effected by communication time delays. This article proposes a resilient distributed multiagent control scheme for ac MG networks subject to additive noise and time-delay disturbances. The proposed multiagent control scheme is composed of three distributed consensus protocols, which is able to synchronize the output voltages and frequencies of inverter-based DERs to their reference values and achieve the optimal active power-sharing property by a low bandwidth communication network with noise and time-delay disturbances in almost sure convergence. By means of the stochastic analysis tools and algebraic graph theory, distributed consensus control protocols are designed to be employed for the secondary control level of MGs. On this basis, we deduce the stability criteria of the closed-loop MG system under noise and time-delay disturbances. As a result, the proposed consensus protocols can well restore the voltage and frequency’s derivation produced at the primary control level, meanwhile, can well achieve the optimal power sharing even though there exist communication disturbances. Several simulation scenarios on an islanded MG network are provided to verify the proposed control protocols’ performance.

Authors 4

1. Jingang Lai Aachen E.ON Energy Research Center

   RWTH Aachen University

   Affiliation as printed

   E.ON Energy Research Center, RWTH Aachen University, Aachen, Germany

2. Xiaoqing Lu

   Wuhan University

   Affiliation as printed

   School of Electrical Engineering and Automation, Wuhan University, Wuhan, China

3. Zhao Yang Dong

   UNSW Sydney

   Affiliation as printed

   School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW, Australia

4. Shijie Cheng

   Huazhong University of Science and Technology

   Affiliation as printed

   School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China