The paper presents models developed to study modulation systems of inverters that supply the induction motor drives. A modelling technique and simulation results are proposed. The benefits of the discontinuous space vector modulation algorithms for the six-step, pulse-width, and continuous space vector control methods are described.

In this paper, we propose an active learning technique for solving multiclass problems with support vector machine (SVM) classifiers. The technique is based on both uncertainty and diversity criteria. The uncertainty criterion is implemented by analyzing the one-dimensional output space of the SVM classifier. A simple histogram thresholding algorithm is used to find out the low density region i...

In this paper, a simplified space–vector pulse width modulation technique for multilevel inverters is proposed. This method is based on the simplification of the space–vector diagram of a five level inverter into that of a three level inverter. In turn, the three level inverter space vector diagram is simplified into that of two level inverter. Hence, the algorithm of five level space-vector pu...

a method based on electrical capacitance tomography (ect) and an improved least squares support vector machine (ls-svm) is proposed for void fraction measurement of oil-gas two-phase flow. in the modeling stage, to solve the two problems in ls-svm, pruning skills are employed to make ls-svm sparse and robust; then the real-coded genetic algorithm is introduced to solve the difficult problem of ...

A hybrid pulse width modulation (PWM) theme for the grid electrical converter is investigated, which combines the deserves of space-vector PWM (SVM) and elite harmonic elimination PWM (SHEPWM). SHEPWM is adopted at steady state, while SVM is adopted to reach higher dynamic performance at grid fault. A transition strategy between these two PWM schemes is projected, which achieves sleek and fast ...

This paper aims to study the control of output voltage a wind turbine (WT) which is composed permanent magnet synchronous generator (PMSG) connected an inverter/rectifier. The first tested on PMSG based classical direct power (CDPC); this technique uses active and reactive as variable. Then, improve quality energy evaluate performance system, we proposed high-order sliding mode (HOSM) with spac...

The direct torque control-space vector modulation (DTC-SVM) is well-known for achieving excellent dynamic overmodulation. However, the method uses complicated predictive stator flux vector control and requires high precision stator flux vector to define overmodulation mode. This paper proposes a straightforward dynamic overmodulation method and constant switching frequency controller without SV...

In this paper, a predictive control of Wind Energy generation system for a Stand-Alone application is presented. The proposed scheme is implied using a wind driven Permanent Magnet Synchronous Generator (PMSG) connected to an Indirect Matrix Converter (IMC). The IMC is controlled using Space Vector Pulse Width Modulation (SVPWM) technique. The IMC consisting of bi-directional rectifier connecte...

The Direct Torque Control (DTC) has become a popular technique for three-phase Induction Motor (IM) drives because it provides a fast dynamic torque response without the use of current regulators [23][9], however, nowadays exist some other alternative DTC schemes to reduce the torque ripples using the Space Vector Modulation (SVM) technique [11][14]. In general the use of fuzzy systems does not...

The interest in motor drive systems with a number of phases greater than three has increased, mainly high-power industrial fields due to their advantages compared three-phase systems. In this paper, comprehensive mathematical modeling five-phase matrix converter (MC) is introduced. Besides that, the direct and indirect space vector modulation (SVM) control methods are analyzed. Furthermore, mod...