Electric Machine and Electric Drive Simulation

2012 ◽  
pp. 183-332
Keyword(s):  
Electric Drive ◽  
Electric Machine

scholarly journals The development of multi-channel control system for a multi-phase synchronous electric drive with improved vibration noise characteristics

Vestnik IGEU ◽  
2020 ◽  
pp. 43-50
Author(s):  
A.N. Golubev ◽  
V.G. Belonogov
Keyword(s):  
Control System ◽  
Electric Drive ◽  
Permanent Magnets ◽  
Field Model ◽  
Synchronous Motor ◽  
Field Configuration ◽  
Electric Machine ◽  
Noise Characteristics ◽  
Three Phase ◽  
Channel Control

Constantly increasing requirements for the performance of electromechanical systems include the task of improving the vibration and noise characteristics of the electric drive. Currently, this problem is solved mainly by using traditional three-phase systems. The transition to a multiphase version of the electric drive construction opens up new opportunities for its solution. The aim of the study is to improve the vibration and noise characteristics of the electric drive through the development of a multiphase control system that provides targeted formation of the field configuration in the gap of a multiphase electric machine. To conduct the research, the model of a multiphase synchronous motor proposed by the authors was used. The model considers the spatial non-sinusoidality of the field distribution in the gap and enables to represent the engine as a set of parallel substructures, the number of which depends on the number of phases. The technique to design a synchronous motor with an arbitrary number of winding phases based on the field model of the machine has been proposed. The correctness of the results obtained is ensured by the real geometry of the magnetic circuit and steel saturation. The multi-channel control system of the electric drive, characterized by the targeted formation of field configuration in the gap of a multiphase electric machine has been proposed. The calculation model of the electric drive has been developed. The model combines the field model of the engine and the control system. The engine model is implemented in the ElСut software package, the control system model is implemented in the MatLab (Simulink) complex. Compared to the traditional three-phase design of the electric drive with a sinusoidal supply voltage, the options for forming a field in the gap of a synchronous motor considered in the article provide a reduction in ponderomotive force by 8–14 %. The engineering methodology for designing an m-phase synchronous permanent magnet motor with permanent magnets and the structure of the multi-channel control system can be applied when developing electric drives with improved vibration and noise characteristics.

scholarly journals Drivability Optimization by Reducing Oscillation of Electric Vehicle Drivetrains

2020 ◽  
Vol 11 (4) ◽  
pp. 68
Author(s):  
Andreas Koch ◽  
Ludwig Schulz ◽  
Gabrielius Jakstas ◽  
Jens Falkenstein
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Electric Drive ◽  
Test Bench ◽  
Inverse Dynamics ◽  
Inertial Mass ◽  
Electric Machine ◽  
Combustion Engines ◽  
Hardware In The Loop ◽  
Internal Excitation

The drivetrain of electric vehicles differs significantly from vehicles with combustion engines. Current concepts of electric vehicle drivetrains usually have a low damping. Typically, there is no clutch to separate the inertial mass of the electric drive machine from the rest of the vehicle drivetrain. External (road unevenness, potholes, etc.) and internal excitation (torque changes of the electric machine, brake interferences, etc.) cause jerk oscillation and sometimes high component stress. These excitations can be reduced by suitable drivability functions, to which a reference filter can also be assigned. A common approach known from conventional drivetrains is to limit the gradient of the demand torque of the drive machine or the driver′s desired torque in order to influence the torque build-up of the drive machine and to reduce the excitation of jerk oscillations. A second approach is the use of a prefilter. The prefilter uses the inverse dynamics of the drivetrain to influence the demand torque of the drive machine. In this paper, the influence of a prefilter based on the inverse dynamics of electric vehicle drivetrains to reduce oscillations is investigated. In addition, an anti-jerk control enhances the drivability function afterwards. All investigations are made on a hardware-in-the-loop test bench to create reproducible results.

ENERGY INDICATORS OF ELECTRIC DRIVE OF CRANE LIFTING MECHANISMS

2018 ◽  
Vol 27 (103) ◽  
pp. 157-164
Author(s):  
S. P. Savich, ◽  
◽  
V. Ya. Yarmolovich, ◽  
V. V. Orlik, ◽  
E. V. Savolova ◽  
...  
Keyword(s):  
Electric Drive ◽  
Energy Indicators

INVESTIGATION OF POSITION ELECTRIC DRIVE BASED ON STEPPER MOTOR IN MICROSTEPPING MODE

2015 ◽  
Vol 19 (95) ◽  
pp. 24-27
Author(s):  
Elena S. Nazarova ◽  
◽  
Vladimir V. Osadchii ◽  
Sergej Ju. Tobolkin ◽  
◽  
...  
Keyword(s):  
Electric Drive ◽  
Stepper Motor
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