Power enhancement in PV arrays under partial shaded conditions with different array configuration

Area of Science:

• Renewable Energy Systems
• Solar Photovoltaics
• Electrical Engineering

Background:

• Solar Photovoltaic (PV) systems offer a sustainable alternative to non-renewable energy sources.
• Partial shading of PV arrays leads to significant power mismatch losses due to uneven irradiation and bypass diode activation.
• These losses reduce the overall efficiency and energy yield of solar power generation.

Purpose of the Study:

• To propose and evaluate a novel 4x4 array configuration for photovoltaic systems.
• To minimize power mismatch losses in PV arrays under partial shading conditions.
• To enhance the energy generation efficiency of solar panels subjected to non-uniform irradiation.

Main Methods:

• Development of a new 4x4 PV array configuration with varied shapes.
• Simulation of the proposed configuration under diverse partial shading scenarios using MATLAB Simulink.
• Experimental validation of the 4x4 PV array configuration to assess performance.

Main Results:

• The proposed array configuration effectively reduces power mismatch losses compared to conventional designs.
• Uniform distribution of partial shading across the PV array leads to improved power output.
• Simulations and experimental results confirm the effectiveness of the novel configuration in mitigating shading effects.

Conclusions:

• The novel 4x4 array configuration is a viable solution for reducing mismatch losses in PV systems under partial shading.
• Implementing this configuration can enhance the reliability and energy output of solar power installations.
• Further research into different array sizes and shapes could yield additional improvements in PV system performance.