研究目的
Investigating the application of cascade power electronic transformer in large-scale photovoltaic power generation system to improve efficiency and reduce line loss.
研究成果
The simulation results verify the feasibility of the proposed system structure and the effectiveness of the phase-shifting control strategy for the DAB converter in a large-scale photovoltaic power generation system. The system shows potential for reducing line loss and improving efficiency.
研究不足
The study is based on simulation results, which may not fully capture all real-world operational challenges. The scalability of the system to larger capacities and its performance under more varied environmental conditions are areas for further investigation.
1：Experimental Design and Method Selection:
The study proposes a high frequency isolated photovoltaic dc side connection system based on dual active bridge (DAB) converter. It includes the analysis of power transmission capacity of DAB converter and the design of its phase-shifting control strategy.
2：Sample Selection and Data Sources:
A 300kW/3kV photovoltaic power generation system model is built in MATLAB/Simulink for simulation.
3：List of Experimental Equipment and Materials:
The simulation model includes photovoltaic arrays, DAB converters, and other necessary components for a photovoltaic power generation system.
4：Experimental Procedures and Operational Workflow:
The simulation involves testing the system under different irradiance conditions to verify the feasibility of the system structure and the effectiveness of the proposed control strategy.
5：Data Analysis Methods:
The simulation results are analyzed to assess the system's performance under various conditions.
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