Brushless DC motors (BLDC) are widely used in industrial areas. The BLDC motors are driven either by indirect ACAC converters or by direct AC-AC converters. Direct AC-AC converters i.e. matrix converters are used in this paper to drive the three phase BLDC motor and it eliminates the bulky DC link energy storage element. A matrix converter converts the AC power supply to an AC voltage of variab...

In this paper, an attempt is made to improve the performance of permanent magnet DC (PMDC) motor using third order sliding mode control. From derived mathematical modelling for buck converter fed motor, expressions both classical surface (CSS) and proportional integral derivative (PIDSS) with control compared analytically. Simulation work done PI controller, (SMC), CSS PIDSS by Matlab/Simulink ...

Wind is one of the most prominent renewable sources of energy. Wind energy conversion system (WECS) is based on a variable speed wind turbine with direct driven permanent magnet synchronous generator (PMSG) and transmits its electrical power to an AC grid using advanced power electronic converter system. This paper describes operation and control of variable speed WECS based on gearless PMSG to...

In this paper we have introduce a four switch PWM (Pulse Width Modulation) inverter for controlling the operation of PMSM (Permanent Magnet Synchronous Motor). The is controlled with 49 rule base fuzzy controller current component in feedback loop. torque machine reduced help second order filter stabilizing output from controller. harmonics are produced by DC capacitor voltage fluctuations demo...

Wind is one of the most widely used nonconventional sources of energy. A back-to-back PWM converter is used as the excitation power supply for the doubly fed induction generator (DFIG) wind power generation of variable speed constant frequency (VSCF).The Simulink model and control strategy of converter which is connected between rotor and grid is analyzed. Stator-flux oriented vector control ap...

Received Oct 9, 2017 Revised Nov 14, 2017 Accepted Nov 26 , 2017 This paper presents the design and analysis of a novel polygon connected autotransformer based 30-phase ac-dc converter which supplies direct torque controlled induction motor drives (DTCIMD’s) in order to have better power quality conditions at the point of common coupling. The proposed converter output voltage is accomplished vi...

Conventional field oriented control for brushless PM synchronous motor depends upon mathematical model so the parameters variations, noise, electromagnetic interface, non-sinusoidal flux and harmonics in the motor or in power converter will cause performance deteriorating of the drive system. They are causing speed oscillations, ripples in torque, ripples in current and an increase the total ha...

Wind is one of the most abundant renewable sources of energy in nature. Wind energy can be harnessed by a wind energy conversion system (WECS) composed of a wind turbine, an electric generator, a power electronic converter and the corresponding control system. The most advanced generator type is perhaps the permanent magnet synchronous generator (PMSG). As far as microgrid is concerned the load...

The paper is devoted to finding the set value of torque an electromechanical energy converter with a solid rotor by solving optimization problem in Optimetrics module Ansys Maxwell software. A feature material described simultaneous solution using Sequential Nonlinear Programming (Gradient) algorithm and field finite element method determine at each step iteration. describes detail setting rese...

A permanent magnet assistance synchronous reluctance motor can start directly with a net voltage or power converter via torque control method. However, this has usually higher irreversible demagnetization level in comparison interior motors, due to the fewer magnets rotor slots. In order cope disadvantage, different arrangements of line-start are proposed paper. The V shape taking skewed slots ...