研究目的
To eliminate the unbalance in power among the phases of CHB for PV integration without overrating the converter and ensuring all PV arrays operate at their maximum power point (MPP).
研究成果
The proposed topology effectively eliminates the phase unbalance problem in CHB converters for PV integration without overrating the converter and ensures all PV arrays operate at their MPP. Simulation results validate the topology's ability to deliver balanced grid currents under unequal PV power generation.
研究不足
The proposed topology requires multi-winding transformers which increases the design complexity.
1：Experimental Design and Method Selection:
The study proposes a new topology using high-frequency transformers with one primary and three secondaries to distribute power equally among the three phases of CHB.
2：Sample Selection and Data Sources:
Simulation in MATLAB/Simulink with parameters including grid voltage, rated output power, and PV array specifications.
3：List of Experimental Equipment and Materials:
High-frequency transformers, PV arrays, H-bridge converters, and dc-dc converters.
4：Experimental Procedures and Operational Workflow:
Simulation of the proposed configuration under different irradiance conditions to validate the topology.
5：Data Analysis Methods:
Analysis of power generation, grid currents, and capacitor voltages under partial shading conditions.
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