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@article{180614,
        author = {Ruchita Padmakar Rangari and Dr. Sandhya Sudhakar Kulkarni},
        title = {A comparative analysis of centralized and distributed MPPT-based inverter systems for grid-connected PV applications},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {1},
        pages = {1797-1802},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=180614},
        abstract = {In this paper, using precise MATLAB/Simulink models, a thorough comparison of centralized and distributed inverter topologies for photovoltaic (PV) grid integration is presented. A single Voltage Source Converter (VSC) run using the traditional Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm is used in the centralized system design.
In contrast, the distributed architecture consists of numerous module-level converters, each with an individual MPPT controller based on the Incremental Conductance (IC) approach and specialized three-level Neutral Point Clamped (NPC) inverters. Key performance metrics such as MPPT tracking efficiency, total harmonic distortion (THD), system scalability, fault tolerance, and power quality are thoroughly tested in both uniform and partial shade environments.
According to the study, the distributed inverter topology outperforms the centralized version, particularly in mismatch and partial shade circumstances, by providing higher energy yield, increased fault isolation, and superior modularity. Furthermore, the distributed system exhibits improved harmonic performance and more seamless connectivity with the electric grid. These findings emphasize the potential of distributed PV inverter systems as a more reliable and efficient solution for modern renewable energy needs.
In this paper, using precise MATLAB/Simulink models, a thorough comparison of centralized and distributed inverter topologies for photovoltaic (PV) grid integration is presented. A single Voltage Source Converter (VSC) run using the traditional Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm is used in the centralized system design.
In contrast, the distributed architecture consists of numerous module-level converters, each with an individual MPPT controller based on the Incremental Conductance (IC) approach and specialized three-level Neutral Point Clamped (NPC) inverters. Key performance metrics such as MPPT tracking efficiency, total harmonic distortion (THD), system scalability, fault tolerance, and power quality are thoroughly tested in both uniform and partial shade environments.
According to the study, the distributed inverter topology outperforms the centralized version, particularly in mismatch and partial shade circumstances, by providing higher energy yield, increased fault isolation, and superior modularity. Furthermore, the distributed system exhibits improved harmonic performance and more seamless connectivity with the electric grid. These findings emphasize the potential of distributed PV inverter systems as a more reliable and efficient solution for modern renewable energy needs.},
        keywords = {Photovoltaic (PV), Grid-Tied Inverter, Voltage Source Converter (VSC), Neutral Point Clamped (NPC) Inverter, Maximum Power Point Tracking (MPPT), Boost Converter, Simulink, Harmonic Distortion, Partial Shading, Modular Redundancy;},
        month = {July},
        }