electrical drive


Electric drive is an electromechanical system (mechatronic system) intended to set into motion technological equipment. It consists of an electric motor (motors), a transfer mechanism, an electrical energy converter, and a control system. The control system consists of a microcontroller with data connection interfaces, data channels (data network), sensors and actuators. A generalized structure of the electric drive is shown in Fig. 4.1. In general, the main task of the electric drive is the motion control of mechanisms. An electric drive is an automatic control system with a number of feedbacks where different automatic control principles, such as error driven feedback control, model based control, logical binary control, or fuzzy logic control methods, are used. Depending on a particular technical solution and selected control principle, different sensors for measuring of currents, voltages, velocity, acceleration, torque etc. in an electric drive are used. Other information, like pressure signal for controlling pumps and compressors, air humidity and/or temperature signal for controlling of fans etc. is also necessary. For that reason, the controller of the drive must process different information.

Design of the electrical drive for the high-pressure GDI injector in a 500cc motorbike engine
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In order to meet future emission regulations, improve the power and reduce fuel consumption of an engine, a high-pressure GDI injector is gradually replacing the conventional port fuel injector as it is able to provide fuel injection with a more effective fuel

An ultra-high-speed electrical drive system
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The development of ultra-high-speed and ultra-compact electrical drive systems is needed for new emerging applications, such as generators and starters for micro gas turbines, turbocompressor systems, drills for surgery tools, and machining spindles. For the expected

Model reference adaptive control for a DC electrical drive
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The Model Reference Adaptive System (MRAS) is used to obtain systems performance specifications in terms of model reference. A model reference describes the desired response for a DC electrical drive . In MRAS the adjustment mechanism can be obtained by

Device with Analogical Circuits for Protection to the Lack of the Pulse for the Three-Phase Rectifiers in Electrical Drive
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Abstract In this paper is proposed a device for protection at the lack of pulse for the three-phase rectifiers in bridge with load inductive resistive (dc motors) Keywords protection, device, no pulse, three-phase rectifiers I. INTRODUCTION EVELOPMENT, of automation

Fundamentals of electrical drive controls
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2.4. Electronic control unit and control algorithms 3. Adjustment of DC motor speed 3.1. Speed adjustment by armature resistance control 3.2. Speed adjustment by armature voltage and field control 4. Design of DC drive cascade control system 4.1. Cascade control

Neural technologies in electrical drive control
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When surveying the genesis of artificial neural networks (ANN) as a scientific branch, one is bound to start with paper . Then he will certainly mention Rosenblatts perceptron , which used to be a great hope of cyberneticists and is unfairly forgotten now. The revival of

Robust fuzzy control of electrical drive
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Abstract fuzzy controllers were prepared. The controllers were designed using Fuzzy Logic Toolbox. The membership functions and rules were used as design tools that give opportunity to model a control surface and controller properties. The Electrical machines and drive systems account for about 46% of all global electricity consumption, resulting in about 040 Mt of CO2 emissions. This is by far the largest portion of electricity use, easily outstripping lighting, which takes up to 19% of the worlds demand

Modular approach for an asic integration of electrical drive controls
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VLSI circuits design allows today to consider new modes of implementation for electrical controls. However, design techniques require an adaptation effort that few designers, too accustomed to the software approach, provide. The authors of this article propose to develop

Analytical and model study of a modular electrical machine in the electrical drive .
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The article describes the idea of creating a modular electrical machine, it submits the design of such machine, a mathematical description and computing of the characteristics of the elementary electro-magnetic module. A part of article is devoted to creating a computer

Digital Filter for Electrical Drive with Elastic Shaft
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In the paper analytically is constructed digital filter for DC- electrical drive with elastic junctions. It could be realized with two discrete integrators and five operational amplifiers. The filter would be insert sequentially on the output of the speeds regulator. As results

Energetic Aspects Referring to Electrical Drive Systems
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Certain aspects referring to the energy consumptions in the electrical drives with DC motors are presented. The possibilities of the decrease of the energy losses are emphasized; these possibilities appear especially in the transient period of the speed change. A simple

Minimum energy and minimum time control of electrical drive systems
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A comparison between time optimal control and minimum energy control for electrical drives is performed. The drives with DC, PMSM or induction motors are considered. A simple strategy using the currents as control variables is proposed. A unified theoretical approach

Aspects on Compact Electrical Drive Systems
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The paper presents some aspects on actual directions regarding electrical drive systems field. The necessity to developing compact drive systems and the present world economical situation determine the manufacturers to concept special integrate drive systems, where

Transient acoustic simulations of electrical drive -trains
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During the first half of the 20th century, Jordan introduced the idea that the interaction of electromagnetic force density waves with the mechanical and acoustic characteristics of the machine is the key to understanding and solving the problem of audible noise of electric

Wireless Automation of an Electrical Drive using Bluetooth
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Industrial automation in the present day requires effective feedback-oriented mechanisms which can control as well as monitor electrical , electronic and mechanical systems. Traditionally, feedback based automation systems utilize wired communication interfaces to

Self-running type electrical discharge machine using impact drive mechanism
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An electrical discharge machine of a self-running type is developed to machine fine structures on a local area of a large workpiece. This electrical discharge machine consists of two parts; a mobile table and an electrode feeding device. This machine moves on the

Teaching of simulation an adjustable speed drive of induction motor using MATLAB/Simulink in advanced electrical machine laboratory
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The simulation of motor complicated applications conventionally can be a challenge for both undergraduate and postgraduate levels. To easy implementation for several kinds of control structures of an induction motor (IM) drive , some simulators such as MATLAB/Simulink to be

Electromagnetic coupling of the electrical drive -EMC. Part I
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The paper deals with the general analysis of one part of the electromagnetic compatibility (EMC) problem-the electromagnetic coupling applied in the field of power electrical systems. Theoretical analysis of above mentioned problem, based on the impact investigation of the

High speed electrical drives for mobile machinery Drive concept and selected components
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Caused by low power density and high costs, electrical drive technology for traction drives of mobile machinery today is only a niche application. Concepts from the automotive sector show that the power density can be increased significantly by increasing the speed of




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