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Fuzzy logic-based multi-level shunt active power filter for harmonic reduction

Author

Listed:
  • Sundaram Elango
  • R. Subramanian
  • Venugopal Manikandan
  • Krishnan Ramakrishnan

Abstract

In this paper, using a three level diode clamped multilevel inverter and DC capacitor, a shunt active power filter (SAPF) is implemented to mitigate the supply current harmonics and compensate reactive power drawn from nonlinear load. The advantage of using three-level inverter paves way to reduced harmonic distortion and switching losses. Fuzzy logic control and unit sine vector control are proposed in this paper for generating reference current for the SAPF. The advantage of fuzzy control is that it is based on a linguistic description and does not require a mathematical model of the system. The implementation of fuzzy logic control (FLC) algorithm is executed using MATLAB fuzzy logic tool box. The proposed pulse width modulation (PWM) method produces the switching signals to the inverter from the sampled reference phase voltage magnitudes as in the case of conventional space vector PWM (SVPWM). The simulation results illustrate that the proposed three-level SAPF with low harmonic content in supply current and in phase with the line voltage. The simulation results are validated with prototype model for demonstrating the effectiveness of the system.

Suggested Citation

  • Sundaram Elango & R. Subramanian & Venugopal Manikandan & Krishnan Ramakrishnan, 2020. "Fuzzy logic-based multi-level shunt active power filter for harmonic reduction," International Journal of Operational Research, Inderscience Enterprises Ltd, vol. 39(1), pages 95-115.
    • Handle: RePEc:ids:ijores:v:39:y:2020:i:1:p:95-115
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