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Decentralized method for load sharing and power management in a PV/battery hybrid source Islanded microgrid

Karimi, Y ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1109/TPEL.2016.2582837
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2017
  4. Abstract:
  5. This paper proposes a new decentralized power management and load sharing method for a photovoltaic based islanded microgrid consisting of various photovoltaic (PV) units, battery units and hybrid PV/battery units. Unlike the previous methods in the literature, there is no need to communication among the units and the proposed method is not limited to the systems with separate PV and battery units or systems with only one hybrid unit. The proposed method takes into account the available PV power and battery conditions of the units to share the load among them. To cover all possible conditions of the microgrid, the operation of each unit is divided into five states and modified active power-frequency droop functions are used according to operating states. The frequency level is used as trigger for switching between the states. Efficacy of the proposed method under different load, PV generation, and battery conditions is validated experimentally in a microgrid lab prototype consisting of three units. © 2016 IEEE
  6. Keywords:
  7. Decentralized power management ; Hybrid photovoltaic (PV)/battery unit ; Hybrid source microgrid (MG) ; State of charge (SoC) ; Charging (batteries) ; Electric batteries ; Energy management ; Photovoltaic cells ; Power management ; Secondary batteries ; Battery condition ; Hybrid source ; Islanded microgrid ; Micro grid ; Operating state ; Photovoltaic ; PV power curtailment ; State of charge ; Battery management systems
  8. Source: IEEE Transactions on Power Electronics ; Volume 32, Issue 5 , 2017 , Pages 3525-3535 ; 08858993 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/7496968