scholarly journals COMPARATIVE ANALYSIS OF CONTROL SYSTEMS FOR A VOLTAGE SOURCE INVERTERS FOR AC DRIVES

2021 ◽  
Author(s):  
Nikolay Chuprina
Keyword(s):  
Comparative Analysis ◽  
Control Systems ◽  
Electric Drive ◽  
Synchronous Motor ◽  
Drive System ◽  
Voltage Source ◽  
Voltage Source Inverters ◽  
Electric Drives ◽  
Ac Drives ◽  
Electric Drive System

The brief survey of electric drives implicated in both industry and transport are carried out. The results of comparison of control systems of a voltage source inverters included in an electric drive system with an asynchronous or synchronous motor are presented. The results were obtained by means of Matlab.

scholarly journals Simulation of Electric Drive With Direct Torque Control of Induction Motor

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Yuri M. Inkov ◽  
Andrey S. Kosmodaminskiy ◽  
Alexander A. Pugachev ◽  
Elena V. Sachkova
Keyword(s):  
Induction Motor ◽  
Electric Drive ◽  
Induction Motors ◽  
Direct Torque Control ◽  
Torque Control ◽  
Voltage Source ◽  
Voltage Source Inverters ◽  
Electric Drives ◽  
Traction Electric Drive ◽  
Traction Drives

The main requirements for traction electric drives are listed and discussed. The direct torque control of an induction motor electric drive is established by a survey of operation modes of traction electric drives to thoroughly satisfy the requirements for traction electric drive. The topologies and operation principles of two-and three-level voltage source inverters are presented. The advantages and shortcomings of three-level voltage source inverters to be applied on locomotive traction drives are highlighted in relation to the two-level ones. The recommendations of choice between different voltage source inverter topologies are given. The topology and principles of operation of direct torque control of induction motors with two- and three-level voltage source inverters are described. The simulation peculiarities of electric drives with direct torque control and two- and three-level inverters in Matlab are considered. The simulation results are presented. The techniques to reduce the torque oscillations are shown and implemented in Matlab Simulink.

scholarly journals Analysis of electric drive systems for performance of driving and starting under load

2020 ◽  
pp. 18-25
Author(s):  
O.A. Khrebtova ◽  
N.V. Zachepa
Keyword(s):  
Control Systems ◽  
Electric Drive ◽  
Phase Control ◽  
Drive System ◽  
Transport Mechanisms ◽  
Starting Current ◽  
Electric Drive System ◽  
Start Up ◽  
First Time ◽  
Starting Torque

Purpose. Perform an analysis of existing automated control systems of the electric drive and methods of forming the starting torque to determine the compliance of the selected system and method to the requirements for trouble-free mode of start and start of the technological mechanism in difficult conditions or breakaway and start under load.. Methodology. Comparison of energy performance and capabilities of control systems and methods for the formation of starting torque, mathematical calculations, analysis of the properties of systems and methods in accordance with the requirements of technological operations during the start. Findings. To obtain the results of the analysis of the current methods of starting induction motors, autotransformer start was considered, which can significantly reduce the starting current, and also connect a capacitor with a reactance to reduce the current and increase the starting torque; the use of soft start with amplitude-phase control allows you to reduce the starting current and reached the absence of its impulses. The vector-pulse method of controlling the converting device increases the starting torque in the absence of an increase in starting current, such advantages have a quasi-frequency starting mode, but the application is limited by special technological equipment. Thyristor voltage regulator using the phase control method, despite its widespread use in control systems, has a low value of the starting torque. To carry out starting in difficult conditions, according to the results of the analysis of existing systems of controlled starting, it was found that a rational electric drive system for hoisting-and-transport mechanisms is a frequency-controlled electric drive system according to the "frequency converter - asynchronous motor" (FC - IM) scheme. Originality.  For the first time it is proposed to improve the existing control systems of hoisting and transport mechanisms that perform start-up in difficult conditions when using the modes of movement to form the starting torque that exceeds the passport value by 3-4 times. Increasing energy efficiency based on increasing their efficiency, information content and data reliability. For the first time, the reasons for the shortcomings of existing control systems during start-up under load in modern production are analyzed. Practical value. The choice of a rational electric drive system for lifting and transport mechanisms is substantiated when starting in difficult conditions, which will provide maximum efforts in the transmission of a technological mechanism with permissible current and thermal overloads of asynchronous machines.

scholarly journals Topology and control algorithms for a permanent magnet synchronous motor as a part of a vehicle with in-wheel motors

2021 ◽  
Vol 266 ◽  
pp. 04001
Author(s):  
A.S. Lutonin ◽  
J.E. Shklyarskiy
Keyword(s):  
Permanent Magnet ◽  
Electric Drive ◽  
Permanent Magnets ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Drive System ◽  
Maximum Speed ◽  
Stator Windings ◽  
Electric Drive System ◽  
Speed Range

This article describes an electric drive system’s topology with a permanent magnet synchronous motor for a wide speed range applications. Topology consists of a synchronous motor with permanent magnets (PMSM) and two inverters connected to the beginnings and to the ends of the PMSM’s stator windings. The first inverter is connected to a storage battery, while the other one to a floating bridge capacitor, which acts as a back-EMF compensator. The article proposes electric drive system topolo-gy and its control algorithm. Simulation modeling was implemented by the MATLAB/Simulink software package. Simulation results shows that the proposed electric drive system, in comparison with the standard topology with a «star» stator windings connection, is able to increase the maximum speed of PMSM in the field weakening mode by 17%. The maximum achievable torque on the rotor shaft at the maximum speed of the PMSM motor was increased by 16.6%. Also, developed topology allows to in-crease the speed range in the constant torque mode by 34%.

scholarly journals Preface for Special Issue on Electric Drive System for Vehicles

2021 ◽  
Vol 4 (1) ◽  
pp. 1-2
Author(s):  
Xiangyang Xu ◽  
Guangyu Tian ◽  
Hui Liu
Keyword(s):  
Electric Drive ◽  
Drive System ◽  
Special Issue ◽  
Electric Drive System
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