Abstract
This paper contributes an innovative gating signal generation technique based on fuzzy sliding mode pulse width modulation (FSMPWM) with a Series Hybrid Active Power Filter (SEHAPF) for reducing the total harmonic distortion (THD). Hybrid filters are used for compensating reactive power on the load side and mitigate harmonics for the growth of power quality under variable source and load conditions in the utility system. The objective of the paper is to eradicate the various power quality (PQ) problems with development in power factor and reducing distortion in transmission and distribution line due to harmonics. With the implementation of FSMPWM of the proposed filter, the gating pulses are generated by implementing a Mamdani fuzzy rule with sliding surfaces. For producing a fixed pulse the presented method reduces the chattering reaction by controlling the narrow boundary coating on the sliding surface. The results of the projected technique are analyzed and compared with the traditional hysteresis band current controller (HCC). The overall proficiency and results are examined with the help of MATLAB/SIMULINK environment.
Highlights
In the present scenario, wide use of power electronic devices generates huge quantities of harmonics in the utility network [1,2,3]
The modelling and simulation of Series Hybrid Active Power Filter (SEHAPF) controlled by a PI controller using hysteresis band current controller (HCC) and fuzzy sliding mode pulse width modulation (FSMPWM) are presented
The realization of SEHAPF connected through FSMPWM has been examined and the results are compared with the classical HCC using unit vector theory
Summary
Wide use of power electronic devices generates huge quantities of harmonics in the utility network [1,2,3]. Current development in switching appliances has led to focus on a different arrangement of active power filter (APF) This APF is helpful in compensating voltage and current harmonics as well as compensation in unbalanced voltage with other power quality problems. SEHAPF is able to supply the voltage harmonics in the utility system with equal magnitude and opposite phase with respect to the nonlinear load. The operation of these custom power devices is determined upon reference current technique and the controlling process used to supply the essential current or voltage compensation into the grid. Fast sensing of distorted signal and quick extraction process are highly required
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