Power Quality Assessment and Enhancement using FLC based SPV Supported Cascaded H-Bridge Multilevel Inverter

• Published in: e-Prime 2024-03, Vol.7, p.100465, Article 100465
• Main Authors: Sarkar, Prabhat Ranjan, Minai, Ahmad Faiz, Ahmad, Isarar, Bakhsh, Farhad Ilahi, Khan, Akhlaque Ahmad, Pachauri, Rupendra Kumar
• Format: Article
• Language: English
• Subjects: Fuzzy logic controller; harmonic distortion; Multilevel Inverter; Solar Photovoltaic System
• ISSN: 2772-6711; 2772-6711
• DOI: 10.1016/j.prime.2024.100465

•A FLC based PV supported CHBMLI is depicted as smart power line conditioners. Under various circumstances, the performance of the shunt power filter is studied and efficacious even when the supply voltages are imbalanced and distorted; minimizes THD in source current to levels considerably below the stated limits set as standards.•The source current becomes completely sinusoidal, devoid of harmonics, and in phase with the main supply voltage, retaining unity power factor in each of the cases investigated.•Multiple non-linear loads have been utilized in each simulation to examine the active filter's temporal response. It has been noticed in each case that the filtering plan of action follows the pattern after one power cycle when the loads vary.•The basic positive sequence voltage detector is in high demand when voltage imbalance and distortions both present.•The hypothesis worked quite well after the fundamental positive sequence voltage was retrieved. Solar photovoltaic (SPV) is one of the most common renewable energy sources used at present. The major issue with renewable energy resources is power quality to meet the growing energy demand. In recent times reliability and flexibility of energy supply are also associated with the quality of power. The issues attached with line faults, voltage sag/swell, harmonics in supply and flicker are the key concerns for poor power quality. The new scenario is designed to challenge electrical resources like generation, transmission and distribution. Considering renewable energy in the existing power system requires additional research and analysis to synchronize new components. From this point of view, many power electronics converters and switching devices are designed to increase the reliability and efficiency of the system. Similarly, solar PV system requires a maximum power point tracker to extract the power upto the maximum extent. It consists of two stages: DC to DC converter and Pulse Width Modulation controlling phase. A multi-level inverter (MLI) is used to enhance the power quality of the overall system. It reduces the harmonics distortion and stabilizes the system near the unity power factor. This paper comprehensively analyses the cascaded H-bridge Multilevel Inverter associated with the fuzzy logic controller (FLC) and SPV system. The simulation results are compared with the 3-level and five levels Multilevel Inverter.