Design, Analysis and Implementation of Fixed and Variable Step Incremental MPPT Techniques of PV Power Conversion System

The Maximum Power Point Tracking (MPPT) system is essential for maximizing the efficiency of photovoltaic (PV) systems, which is necessary for efficient solar energy usage. This paper examines two prominent MPPT techniques: Incremental Conductance (IC) with fixed step size and variable step size. The IC method, known for its accuracy in handling rapid environmental changes, adjusts the PV system's operating point to ensure optimal performance. The fixed step size approach is simple to implement and computationally efficient but may struggle with stability and efficiency under varying conditions. In contrast, the variable step size method dynamically adjusts the step size based on operating conditions, offering improved performance and stability at the cost of increased complexity. A comparative analysis based on convergence time, tracking accuracy, stability, and implementation complexity highlights the strengths and limitations of each method. The findings guide engineers and researchers in designing MPPT systems that maximize the efficiency and reliability of photovoltaic energy conversion.

• maximum power point tracking
• incremental conductance
• variable step size
• fixed step size
• photovoltaic conversion
• solar energy
• tracking accuracy
• convergence time
• tracking stability
• MPPT algorithm comparison

• 7 — Affordable and clean energy
• 9 — Industry, innovation and infrastructure

• Photovoltaic System Optimization Techniques
• Advanced DC-DC Converters
• Power Systems and Renewable Energy
• maximum power point tracking
• incremental conductance
• variable step size
• fixed step size
• photovoltaic conversion
• solar energy
• tracking accuracy
• convergence time
• Renewable Energy, Sustainability and the Environment
• Electrical and Electronic Engineering
• Energy Engineering and Power Technology
• Energy
• Engineering