Microgrid Power Flow Control with Integrated Battery Management Functions
- North Carolina State University
This paper presents a microgrid power flow control for islanded microgrids consisting of photovoltaic (PV) system, battery energy storage system (BESS) and diesel generator. The proposed control ensures automatic coordination among the microgrid units. To achieve the coordination, the local control of PV system and BESS are configured to regulate power flow without relying on communications. The generator is controlled as the back-up source and its connection depends on battery state of charge (SOC). A state machine with hysteresis settings is used to trigger smooth transition among operation modes. Not only does the proposed controller consider battery SOC and power limits, but also integrates three-stage charging control as battery charging mechanism, which is not considered in the existing literature. The proposed control is validated for an islanded hybrid microgrid using an OPAL-RT real-time simulator.
- Research Organization:
- North Carolina State University
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- DOE Contract Number:
- EE0008770
- OSTI ID:
- 2329485
- Journal Information:
- 2020 IEEE Power & Energy Society General Meeting (PESGM), Journal Name: 2020 IEEE Power & Energy Society General Meeting (PESGM)
- Country of Publication:
- United States
- Language:
- English
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