研究目的
Investigating the performance of conventional and proposed adaptive Maximum Power Point Tracking (MPPT) techniques under variable weather and solar irradiation conditions for efficient energy conversion from solar PV systems.
研究成果
The proposed Hyperbolic-PI (H-PI) adaptive MPPT method shows superior performance in terms of stability and tracking speed under variable solar irradiation conditions compared to conventional MPPT methods. The study highlights the importance of derivative processing in achieving reliable and fast maximum power tracking for PV systems.
研究不足
The study is limited by the digital control environment and the specific configurations of the PV array and power converters used in the experiments. The impact of unexpected noises in hardware experiments on the MPPT algorithms' performance is also a limitation.
1：Experimental Design and Method Selection:
The study compares conventional fixed-step MPPT approaches with a proposed Proportional-Integral (PI) based adaptive MPPT approach.
2：Sample Selection and Data Sources:
A PV array with a series-parallel configuration is used, and solar irradiance levels are varied to simulate different weather conditions.
3：List of Experimental Equipment and Materials:
Includes a PV array module, a dc/dc boost converter, a dc/ac inverter, and an Agilent E4360A solar simulator.
4：Experimental Procedures and Operational Workflow:
The MPPT algorithms are tested under step and ramp changes of solar irradiance levels, and their performance is evaluated based on tracking speed and stability.
5：Data Analysis Methods:
The performance of MPPT algorithms is analyzed based on the captured power, voltage, and current waveforms, and the power vs. voltage locus.
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