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In recent years the possibility of incorporating type II high temperature superconductors (HTS) into power applications such as electrical motors, generators, bearings and fault current limiters has attracted much attention. Hysteresis superconducting motors offer the simplest construction and in this paper a drum and disc type configuration are considered. Comparison in terms of specific torque produced...
In this paper, an analytical approach is used to determine the Flux-linkage characteristic of regular Switched Reluctance Machines (SRMs) considering simple geometry aspects. The proposed method is derived from an 8/6 SRM magnetic characteristic obtained by experimental tests and validated by FEM results. In order to reduce calculation time and expense, regarding simulation and implementation proposes,...
This paper presents the electromagnetic analysis of a new designed and constructed prototype of a single-sided linear switched reluctance actuator. First, a brief consideration on the adopted analytical design methodology, establishing some desired electrical and mechanical parameters, is stated. After, a characterization of the actuator is made, analyzing the distribution of magnetic fields and connected...
The electrical motion drives are more and more used in various industrial processes. The choice of the motor drive is based on power, speed, precision, and cost requirements. There are many different types of motors for motion drives application. AC and DC motors feature brushed or brushless designs are suitable for a variety of industrial applications. Speed, torque and position control are the most...
The application background and operating principle of the Switched Reluctance Starter/Generator (SR S/G) system are briefly introduced. The structure and technical parameters of an undergoing 30 kW Switched Reluctance Machine (SRM) and its converter are described. Based on these works, the thermal analysis of the SRM and its converter are presented in detail. The transient lumped-parameter thermal...
The synchronous reluctance motor has gained more attention recently and is a potential candidate to compete with other AC motors. The simple structure and fast torque response make the direct torque control an attractive solution for the synchronous reluctance motor drive system. Different motor, inverter and controller parameters affect the drive system performance in this method. The drive system...
A polar chart of the power converter supply current, comprising phase currents and rotor mechanical position information, is presented, in order to characterize the dynamic operation of a SRM drive. Power converter supply current can be used as additional information of extreme importance when a sensor error or failure occurs. Its analysis is then important and permits to develop appropriate fault...
Stepping motors are electromagnetic incremental-motion actuators, which, when energized by a voltage and current input, index in given angular increments. Their inherent positional accuracy makes them suitable for a wide range of motion control and industrial positioning applications, especially when slow and precise movement is required. However, their speed is limited by their torque which diminishes...
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