Voltage and Current Harmonic Mitigation using Fuzzy logic Controller Based UPQC for Power Quality Improvement

Authors

  • Nakka. Maheshbabu

Abstract

The UPQC is being used as a universal active power conditioning device to mitigate both current and voltage harmonics at a distribution side of power system network. The performance of UPQC mainly depends upon how quickly and accurately compensation signals are derived by using control schemes. In this work to enhance the power quality, UPQC with FLC and PI Controller are used. The proposed FLC is capable of providing good static and dynamic performances compared to the PI Controller. The static and dynamic performances of the current source inverter based UPQC with proposed control schemes are tested at different load current and utility voltages conditions. The Unified Power Quality Conditioner is simulated through synchronous reference frame theory. The proposed system is comprised of series and shunt Inverters which can compensate the sag, swell, and unbalance voltage, harmonics and reactive power. PI Controller and Fuzzy Logic Controller are used to stabilize DC Link voltage and balance the active power between shunt and series inverters for the enhancement of power quality.

Keywords: UPQC, synchronous refrence frame, PI controller, Fuzzy logic controller.

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Published

2020-01-02

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Section

Articles