Abstract
This paper introduces a developed simplified version for the recursive Gauss-Newton algorithm for extraction and mitigation of the stationary current quality problems such as current harmonics and current fluctuation. Adaptive notch filters are newly utilized for supplying the Gauss-Newton algorithm with the required values of frequencies for current disturbances such as non-characteristic harmonics, inter-harmonics and sub-harmonics. Also, this paper exhibits the mitigation results for current harmonics and fluctuation problems by using a shunt power conditioner. Moreover, in this paper the ramp-comparison current controller, linear current controller, is employed to operate the mitigation device. The effectiveness of the developed extraction technique associated with the employed current controller for the shunt power conditioner is verified by simulation results using MATLAB/SIMULINK.
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