Enhance Power Quality of 1-Φ Grid-connected PWM Inverter using Fuzzy with Hysteresis Current Controller
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Abstract
Continuously rising demand of electrical energy and the insufficiency of conventional energy sources lead to the development of distributed generation (DG) system. The main difficulty is the harmonization of the DG to the utility grid. Usually current regulated PWM voltage-source inverters (VSI) are used for synchronizing the utility grid with DG source in order to meet the following objectives like: to ensure grid stability, active and reactive power control through voltage and frequency control and power quality improvement (i.e. harmonic elimination) etc. In our paper we proposed hysteresis current control technique will be used as inverter control technique, which is one of the feedback control scheme. In addition to hysteresis current controller fuzzy will be used in order to improve performance.
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