To address the challenges of slow convergence speed
significant power fluctuations
and difficulties in real-time tracking encountered by photovoltaic maximum power point tracking (MPPT) control systems under dynamic irradiance conditions
this paper proposes an improved particle swarm optimization (IPSO) algorithm incorporating partial shading detection. The enhanced algorithm introduces an adaptive updating mechanism for the inertia weight while eliminating random parameters and to streamline the velocity update equation. Through comprehensive analysis of the power output characteristics under partial shading conditions
the quantity and distribution patterns of particles have been optimized. Furthermore
a simplified partial shading detection method is developed based on the curve characteristics of photovoltaic arrays under varying illumination conditions
which is subsequently integrated into the refined PSO algorithm. Experimental validation irradiance that the enhanced algorithm exhibits superior optimization capability and accelerated convergence during the tracking process
effectively mitigating power oscillations. The proposed methodology demonstrates exceptional dynamic performance in fluctuating light environments
exhibiting remarkable adaptability to diverse sudden irradiance change scenarios.
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