研究目的
Investigating the efficiency of a modified perturb and observe (P&O) algorithm for tracking maximum power point in photovoltaic systems under dynamic irradiance conditions.
研究成果
The proposed P&O algorithm demonstrates superior performance in tracking the maximum power point under dynamic irradiance conditions, with faster response times and fewer iterations compared to the conventional P&O method. It effectively prevents deviations caused by rapid changes in irradiance, making it a promising solution for enhancing the efficiency of photovoltaic systems.
研究不足
The study is based on simulation results, which may not fully capture real-world conditions. The effectiveness of the proposed algorithm in physical PV systems under varying environmental factors needs further validation.
1：Experimental Design and Method Selection:
The study employs a modified P&O algorithm with an additional dI parameter and variable step size ?Dn to address deviations under rapid irradiance changes. The methodology includes simulation in MATLAB/Simulink to assess the algorithm's efficiency.
2：Sample Selection and Data Sources:
The PV module parameters and irradiance conditions are simulated to represent dynamic changes in solar irradiance.
3：List of Experimental Equipment and Materials:
A DC–DC boost converter is used to validate the proposed P&O algorithm, with specifications including an inductor of 71.13 μH, capacitor of 23.38 μF, input capacitor of 470 μF, resistive load of 65 ?, and frequency of 25 KHZ.
4：13 μH, capacitor of 38 μF, input capacitor of 470 μF, resistive load of 65 ?, and frequency of 25 KHZ.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The simulation involves rapid changes in irradiance levels to test the algorithm's response time and accuracy in tracking the maximum power point.
5：Data Analysis Methods:
The performance of the proposed P&O algorithm is compared with the conventional P&O method in terms of tracking time, number of iterations, and power extraction efficiency under dynamic irradiance conditions.
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