E3S Web Conf.
Volume 256, 20212021 International Conference on Power System and Energy Internet (PoSEI2021)
|Number of page(s)||7|
|Section||Energy Internet R&D and Smart Energy Application|
|Published online||10 May 2021|
Two Level Control Strategy for Independent AC/DC Hybrid Microgrid Based on Integrated Control
1 Wind and Solar Power Energy Storage Demonstration Station Co., Ltd State Grid, Hebei Province Wind and Solar Energy storage Combined Power Generation Technology Innovation Centre, Zhangjiakou City, 075000, China
2 Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
3 Key Laboratory of Power System Simulation and Control, Tianjin University, Tianjin 300072, China
* Corresponding author’s e-mail: firstname.lastname@example.org
Aiming at the independent AC/DC microgrid, a simple and effective multi time scale control strategy is proposed by adopting the combination of day ahead scheduling and real-time control. The day ahead scheduling strategy takes the minimum operation cost of AC/DC microgrid as the goal, and schedules the controllable loads in the AC/DC microgrid with particle swarm optimization, which makes full use of renewable energy. The real-time control strategy controls the output of the distributed generation, the load reduction and the switching of the diesel generator according to the real-time energy storage state of charge (SOC), which keep the power balance of the AC/DC microgrid. The effectiveness of the proposed two-level control strategy is verified by a practical AC/DC hybrid microgrid. The results show that the proposed method can make full use of renewable energy and ensure the economic and reliable operation of AC/DC hybrid microgrid.
© The Authors, published by EDP Sciences, 2021
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