Spectral Analysis of Harmonic Measurement Using Wavelet Transformation in IEEE -13 Bus System
DOI:
https://doi.org/10.51983/ajes-2012.1.1.1652Keywords:
Active Power Filter, IEEE-519, Wavelet Transform Controller, Matlab/Simulink, Reactive Power Compensation, THDAbstract
An efficient compensation method and design for sizing the three phase four wire shunt Active Power Filter (APF) based on wavelet transformation is presented in this paper. The compensation currents injected by shunt active power filter are determined to eliminate harmonic currents of the non linear loads as well as to compensate reactive power and maintain the source currents as sinusoidal. In this paper Fast Fourier Transforms (FFTs) is used for APF to calculate reference compensation current. Proposed APF has the capability to operate in balanced, unbalanced and variable load conditions. The proposed auto tuned filter meet the IEEE – 519 harmonic current limits and other constraints like power factor improvement and reactive power compensation. The proposed methodology is tested for different loads with good dynamic behavior of APF using wavelet controllers. The results obtained by simulations with MATLAB/Simulink shows that the proposed approach is very effective and simple for compensating harmonic currents generated by the nonlinear loads with an optimal size of the shunt active power filter.
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