A Superlative Hybrid Fuzzy Contolled ZSI-DSTATCOM for PEV Charging Stations

Electrical & Electronics Engineering

A ZSI supported DSTATCOM has been proposed for improving the power quality of a power system and PEV charging station by using the Instantaneous Symmetrical Component Theory (ISCT) control technique. The main objective is presented in this work, for decreasing harmonics on the supply signals and elimination of large currents in the system due to a fault in the power system and PEV charging station. The proposed ZSI acts as a multi converter and has a feature of buck/boost. The power quality aspects are governed by the various standards such as the IEEE-519-1992 standard. Additionally, regulation of DC capacitor voltage at a desired level using a PI controller is not suitable for enhanced PQ features. The proposed intelligent Fuzzy control schemes are highly used in several applications, in that Hybrid-Fuzzy controller has been greatly recognized due to enhanced performance over the classical PI and Fuzzy controllers. This work compares the performance of ZSI-DSTATCOM with classical PI and intelligent Fuzzy-Logic controller in PQ enhancement. The proposed hybrid-Fuzzy controlled ZSI-DSTATCOM provides compensates all current-related disturbances like current harmonics, reactive power control, power-factor correction, unbalanced current and reduction in Total Harmonic Distortion, so on.

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