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Dynamic Modeling of Solar Shading Effects on Photovoltaic Power Generation System

Students & Supervisors

Student Authors
Abdullah Al Mujahid
Bachelor of Science in Electrical & Electronic Engineering, FE
Aftab Alam Asif
Bachelor of Science in Electrical & Electronic Engineering, FE
Md Nazmun Nur
Bachelor of Science in Electrical & Electronic Engineering, FE
Nasif Hannan
Bachelor of Science in Electrical & Electronic Engineering, FE
Supervisors
Abu Shufian
Lecturer, Faculty, FE

Abstract

Solar photovoltaic (PV) systems are highly vulnerable to changes in irradiance, and shading is one of the most detrimental issues affecting their efficiency. Even minor shading can cause disproportionate power losses, current mismatch, and the emergence of multiple peaks in I–V and P–V characteristics, complicating maximum power point tracking (MPPT). To address these challenges, this study develops a modeling and simulation framework to systematically analyze shading effects on PV arrays. The model evaluates different irradiance distributions, Partial Shading Conditions (PSC), and the effectiveness of bypass diodes in minimizing mismatch losses. Simulation outcomes demonstrate the direct influence of shading patterns on the I–V response, the reduction in maximum power output, and the nonlinear behavior that hinders MPPT accuracy. Incorporating bypass diodes is shown to mitigate hotspot risks and recover part of the lost power under shaded conditions. Overall, this research highlights the value of simulation tools in predicting real-world PV behavior, offering a practical framework for researchers and system designers to quantify shading impacts and optimize PV performance for enhanced energy yield and reliability.

Keywords

PV Systems Solar Shading Partial Shading Effect Dynamic Modeling performance.

Publication Details

  • DOI: N/A
  • Type of Publication:
  • Conference Name: IEEE International Conference on Power, Electrical, Electronics & Industrial Applications (PEEIACON) 2025
  • Date of Conference: 03/12/2025 - 03/12/2025
  • Venue: Southeast University (SEU), Dhaka, Bangladesh.
  • Organizer: IEEE
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