Communication and control of electric drive vehicles supporting renewables

2009 ◽  
Author(s):  
T. Markel ◽  
M. Kuss ◽  
P. Denholm
Keyword(s):  
Electric Drive ◽  
And Control

Control of an Asynchronous Electric Drive Based on Forecasting Its State

2021 ◽  
Vol 64 (3) ◽  
pp. 45-52
Author(s):  
Evgeny Eshchin ◽  
Keyword(s):  
Electric Drive ◽  
Control Algorithm ◽  
Asynchronous Motor ◽  
Quality Of Control ◽  
Asynchronous Electric Drive ◽  
Theory Of Optimal Control ◽  
The Stability ◽  
Control System Model ◽  
And Control

Variants of constructing control systems with a lagging argument for the positioning problem of an asyn-chronous electric motor (IM) and the problem of energy-saving AM control are considered. Variants of control of an asynchronous electric drive with IM on the basis of predicting its state are considered. The analytical de-sign of the predictor (ADP) is an asynchronous motor control algorithm based on the mathematical theory of optimal control (L.S. Pontryagin's maximum principle). The control algorithm (ADP) ensures the achievement of the minimum value of the target functional, which (functional), in contrast to the structure of the classical pre-dictive control system (Model Predictive Control - MPC), is clearly not part of the ADP. Calculations of the movements of an electric drive with an IM in the control modes of its state, taking into account delays along the channels for assessing its state and control, as well as using predictors, are given. The effectiveness of the in-troduction of predictors to improve the stability and quality of control of an electric drive with an IM has been established.

scholarly journals ASYNCHRONOUS ELECTRIC DRIVE WITH REACTIVE POWER CONTROL

2021 ◽  
Vol 2021 (5) ◽  
pp. 49-54
Author(s):  
R.A. Chepkunov ◽  
◽  
◽  
Keyword(s):  
Power Control ◽  
Induction Motor ◽  
Electric Drive ◽  
Reactive Power ◽  
Reactive Power Control ◽  
Magnetic Flow ◽  
Asynchronous Electric Drive ◽  
And Control

The method of control of asynchronous electric drive, which based on measuring and control of reactive power of induction motor, is presented. It provides independence of magnetic flow of rotor from changes of induction motor parameters, uninterrupted diapason of regulation of speed including zero and fast regulation.

scholarly journals Real time analysis of an intelligent torque controller for a hybrid bicycle

2018 ◽  
Vol 7 (2.21) ◽  
pp. 166 ◽  
Author(s):  
S Indulal ◽  
S Ushakumari ◽  
P S. Chandramohanan Nair
Keyword(s):  
Fuzzy Logic ◽  
Electric Drive ◽  
Internal Combustion Engines ◽  
Fuzzy Logic Controller ◽  
Combustion Engines ◽  
Time Analysis ◽  
Turn On ◽  
Real Time Analysis ◽  
And Control ◽  
The Ideal

Most of the means of transportation is based on Internal Combustion engines, since they are fast and furious means of transportation. But bicycles are also relevant nowadays since they are the ideal means of the short commutation and which also helps in improving the human health by serving as a work out machine. But in our busy life bicycles are not preferred due to the uneven terrains. Electric bikes are the solution for this issue. Pedal assist sensor (PAS) based hybrid bicycle are also available, which will intermittently turn on and control the speed of electric drive based on the pedal crank speed. Thus there the electric drive assistance will be provided based on the speed of the pedal cranking. The real assistance should be provided when our torque requirement is needed. This paper deal with a novel sensor which sends the effort required at the pedal by the rider and intelligently control the electric drive so as to meet the required torque. The advantage of this controller is that the rider need to give only the same effort at the pedal irrespective of the terrain variations for a constant speed ride. A Fuzzy Logic Controller (FLC) is proposed here. The performance of the controller is simulated and analysed with the experimental results to prove the efficacy of the proposed technique.

Experiences in Teaching Electric Drives Based on Basic Modelling Simulations and Industrial A.C. Drive Measurements

2010 ◽  
Vol 47 (4) ◽  
pp. 416-429
Author(s):  
A. Molina-García ◽  
E. Gómez ◽  
J. A. Fuentes ◽  
J. Villarejo
Keyword(s):  
Electric Drive ◽  
Laboratory Tests ◽  
Theoretical Knowledge ◽  
Electric Drives ◽  
The Past ◽  
Basic Model ◽  
Student Reaction ◽  
Simulation Results ◽  
Four Quadrant ◽  
And Control

The objective of this paper is to compare laboratory tests of industrial electric a.c. drives and simulation results obtained from the basic model introduced to our students in practical sessions. This basic model takes into account the electrical, electronic and control subsystems which comprise a simplified electric a.c. drive. The proposed tests allow us to analyse the electric drive in four-quadrant operation, which are included in this paper. The main advantage of this approach is that students can verify the differences between real and simulated results and, in this way, they can also progress, strengthen and expand their theoretical knowledge. The proposed methodology has been implemented during the past few years in two optional subjects related to electric and electronic fields. Academic results and student reaction are also discussed.

scholarly journals Power antenna radar with variable speed

2015 ◽  
pp. 81-87
Author(s):  
V. F. Strelkov ◽  
M. V. Andryushin ◽  
V. V. Vanyev
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Electric Drive ◽  
Electric Motor ◽  
Permanent Magnets ◽  
Performance Characteristics ◽  
Variable Speed ◽  
Motor Shaft ◽  
Radar Antenna ◽  
And Control

A mathematical model of the "mains - regulated electric drive" radar antenna us with a synchronous motor with permanent magnets. Peculiarities of work at a controlled electric variable speed electric motor shaft. A method and control system with motorized adjustable mechanical and electronic scanning of the antenna, improving performance characteristics of radar stations.

Control of Metal Alloy Oxidation with Electric Fields

1973 ◽  
Vol 31 ◽  
pp. 164-165
Author(s):  
R. R. Dils ◽  
P. S. Follansbee
Keyword(s):  
Electric Fields ◽  
Oxidation Process ◽  
Base Alloy ◽  
Oxide Surface ◽  
Platinum Electrodes ◽  
Insulating Layer ◽  
Iron Base Alloy ◽  
Alloy Oxidation ◽  
Aluminum Oxide Layer ◽  
And Control

Electric fields have been applied across oxides growing on a high temperature alloy and control of the oxidation of the material has been demonstrated. At present, three-fold increases in the oxidation rate have been measured in accelerating fields and the oxidation process has been completely stopped in a retarding field.The experiments have been conducted with an iron-base alloy, Pe 25Cr 5A1 0.1Y, although, in principle, any alloy capable of forming an adherent aluminum oxide layer during oxidation can be used. A specimen is polished and oxidized to produce a thin, uniform insulating layer on one surface. Three platinum electrodes are sputtered on the oxide surface and the specimen is reoxidized.

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