Affected by the negative sequence component and harmonic component of three-phase grid, the conventional three-phase software phase-locked loop (SPLL) circuits were unable to extract the magnitude-phase information of three-phase fundamental positive sequence component accurately, and the dynamic response speed was slow. In order to solve this problem, this paper introduces T/4 time-lapse elimi...

This paper presents accurate solutions for nonlinear transcendental equations of the selective harmonic elimination technique used in three-phase PWM inverters feeding the induction motor by particle swarm optimization (PSO). With the proposed approach, the required switching angles are computed efficiently to eliminate low order harmonics up to the 23 from the inverter voltage waveform, wherea...

Many control schemes have been proposed for induction motor and permanent magnet synchronous motor control, which are almost highly complex and non-linear. Also, a simple and efficient method for unified control of the electric moto are rarely investigated. In this paper, a novel control method based on rotor flux orientation is proposed. The novelties of proposed method are elimination of q-ax...

The Multilevel Inverter topology is advantageous in high-power and power-quality demanding application without use of transformer with reduced harmonic distortion. This paper explain the basic type of Multilevel Inverter such as diode clamped multilevel inverter (neutral point clamped), flywheel capacitor multilevel inverter (capacitor clamped), cascade multilevel inverter also the modulation a...

With advances in solid-state power electronic devices, control techniques (PWM) have been devised to obtain high dynamics responses from a multilevel conditioning converter-Photovoltaic. This work discusses the advantages and drawbacks of two different PWM techniques, sinusoidal (SPWM) technique Third harmonic injection (THIPWM) technique. These methods are compared by discussing their ease imp...

In this paper, we present an implementation of selective harmonic elimination modulation technique in a 27-Level asymmetric multilevel converter. The main issue kind converters is the generation gating patterns to obtain optimized AC voltage waveform. State-of-the art solutions use deep mathematical analysis frequency domain by means Fourier series, but they are mainly applied for two-level or ...

This paper proposed a red deer algorithm (RDA)-based selective harmonic elimination (SHE) method for multilevel inverters (MLIs). To eliminate the desired orders, optimum switching angles of MLI have been calculated using RDA. The applied to 3-phase cascaded H-bridged 11-level inverter. In addition, performance RDA was compared with results methods such as Newton-Raphson (NR) method, LSHADE/EpS...

The growing use of nonlinear devices is introducing harmonics in power system networks that result distortion current and voltage signals causing damage to distribution systems. Therefore, systems, the elimination great significance. This paper presents an efficient techno-economical approach suppress improve factor using Shunt Hybrid Active Power Filters (SHAPF) based on neural network algorit...