Algebraic algorithms are powerful methods in solving the selective harmonic elimination (SHE) problem, which can find all exact solutions without requirements of choosing initial values. However, huge computational burden and long time limit capability algebraic algorithms. This article presents a novel Newton’s identifies-based method to simplify SHE equations including order reduction variabl...

Selective harmonic elimination (SHE) is a suitable pulse-width modulation (PWM) technique for some applications of modular multilevel converters (MMC) with lower number semiconductor submodules (SM). However, SHE can make it difficult to control circulating currents in the MMC. Moreover, MMC vulnerable SM switch failures that reduce its output power magnitude and quality. This paper proposes fa...

this paper presents a new control methodology for active power filters that provide an adaptive online harmonic estimation with partial and selective harmonic reduction schemes, which has been implemented within an integrated controller. the proposed approach is to provide partial and selective reduction of those individual harmonics which exceed the recommended levels as set by regulatory bodi...

This paper presents a new method to find the optimum switching angles in voltage source multilevel converters in order to minimize specific higher order harmonics and decrease the total harmonic distortion (THD) of their output voltage waveform. The output voltage waveform of inverter can either be in the form of staircase or PWM. In order to increase the degrees of freedom and elimination of m...

Harmonic identification by using Adaptive Tabu Search (ATS) Method embedded in the active power filter is proposed in this paper. The use of the ATS identifies harmonic components more accurately and precisely. Besides the accuracy and precision, it is able to select only some particular harmonic orders that cause severe consequences to the system for elimination. This principle thus leads to t...