研究目的
Investigating the economic optimization operation control strategy for photovoltaic energy storage microgrid systems, focusing on seamless switching between grid-connected and independent modes and the impact on energy storage system life and operating income.
研究成果
The proposed strategy effectively improves the life of the energy storage system and enhances the operating income of photovoltaic energy storage microgrid systems. The seamless switching control technique and SOC optimization strategy are validated through simulation and experimental results.
研究不足
The study focuses on a specific case in Qinghai, which may limit the generalizability of the findings. The impact of the strategy on abandoned PV power and load shedding is noted, suggesting areas for further optimization.
1：Experimental Design and Method Selection:
The study proposes an economic optimization operation control strategy for photovoltaic energy storage microgrid systems, including seamless switching control techniques between grid-connected and independent modes.
2：Sample Selection and Data Sources:
Historical data from a practical project in Qinghai was used for simulation.
3：List of Experimental Equipment and Materials:
Includes a dual-mode inverter system with storage, resistive loads, and a manual switch to simulate grid failure or recovery.
4：Experimental Procedures and Operational Workflow:
Detailed procedures for mode switching, including grid state judgment and feed forward control methods.
5：Data Analysis Methods:
Simulation of the strategy using historical meteorological and load data, with analysis of SOC optimization effects.
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