A Quasi-Average Estimation Aided Hierarchical Control Scheme for Power Electronics-Based Islanded Microgrids
AbstractSelf-governed micro power networks are a promising solution for meeting the energy needs of isolated communities not having access to regular transmission networks. The control of such isolated networks requires regulation and “fair” sharing of several power generation and storage resources as well as efficient peer-to-peer coordination between power converters operating in the network. The regulation of key parameters as voltage, frequency and power sharing is to be ensured for the system to operate optimally. This paper proposes a new, de-centralized, and hierarchical control approach for power inverters in isolated micro networks with multi-layered controls, each addressing the regulation of key system parameters. The proposed scheme uses distributed quasi-averaging estimators at each participating node to achieve resilience towards disturbances caused by delayed transmission of measurement and control signals in the data acquisition and information exchange layer. Detailed system models are developed using MATLAB and Sim-power systems to test the effectiveness of the proposed scheme under varying control and network scenarios. The results of these studies are presented as pole zero evolutions, stability margins and case study wise simulations. The studies carried out verify the validity of the proposed control strategy for micro-distribution networks. View Full-Text
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Hashmi, K.; Mansoor Khan, M.; Xu, J.; Shahid, M.U.; Habib, S.; Faiz, M.T.; Tang, H. A Quasi-Average Estimation Aided Hierarchical Control Scheme for Power Electronics-Based Islanded Microgrids. Electronics 2019, 8, 39.
Hashmi K, Mansoor Khan M, Xu J, Shahid MU, Habib S, Faiz MT, Tang H. A Quasi-Average Estimation Aided Hierarchical Control Scheme for Power Electronics-Based Islanded Microgrids. Electronics. 2019; 8(1):39.Chicago/Turabian Style
Hashmi, Khurram; Mansoor Khan, Muhammad; Xu, Jianming; Shahid, Muhammad U.; Habib, Salman; Faiz, Muhammad T.; Tang, Houjun. 2019. "A Quasi-Average Estimation Aided Hierarchical Control Scheme for Power Electronics-Based Islanded Microgrids." Electronics 8, no. 1: 39.
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