Aspects Design of the Single Phase Switched Reluctance Motor (SPSRM) (original) (raw)

Comparison of Switched Reluctance Motor and Double Stator Switched Reluctance Motor

UNO, 2018

This thesis is concerned with the design and analysis of Switched Reluctance Motor (SRM) and its improved structure Double Stator Switched Reluctance Motor (DSSRM). Three configurations of SRM viz. Inner Stator, Outer stator and Double Stator are designed and simulated in ANSYS Maxwell Suite. Design parameters are chosen by aiming optimum performance of motor after literature review and analytical study of the motor. SRM is not a line start machine, so power converter circuit is required to excite the motor. Without proper switching of current, desired torque is not obtained in SRM. The converter circuit and switching unit is built in Maxwell Circuit Editor Tools. Both magnetostatics and transient analysis is performed to investigate motion torque, torque ripple, normal force and radial force. A good comprehensive comparison of three different types of SRMs based on their torque profile and force densities is presented. Simulation performed verified better performance of DSSRM.

Design and analysis of switched reluctance motors

2013 8th International Conference on Electrical and Electronics Engineering (ELECO), 2013

In this paper, the design and analysis of switched reluctance motors (SRM) are studied. SRMs gained more importance in recent years due to simple structural properties. Finite element method (FEM) is used for the analysis of SRM and the motor characteristics are investigated with simulation results. The changing of flux density, moment, current and inductance values are obtained. Besides, these characteristics are compared with different models that modified some of the parameters such as number of turns, winding resistance and material properties. The effects of these changes on the operation of the SRM are presented. .

Air gap Permeance Modeling of the Single Phase Switched Reluctance Motor(SPSRM)

Abstract The paper present a new type of the single-phase switched reluctance motor SPSRM, it has three air gap steps arranged on the rotor poles, two wounded poles and parking magnet poles are arranged on the stator. The paper focuses on Air gap Pemeance Modeling, first one the Air gap Normalizing Permeance Tubes ANP, this method is based to simplify the calculation of the magnetic circuit of SPSRM. Second method is Novel Slice Tube Method TSM. Both methods used to calculate the motor inductance, then the obtained results compared with two dimensions Finite Element Analysis FEA package developed for SPSRM. The obtained results show that both methods are acceptable for engineering design.

DESIGN AND IMPLEMENTATION OF SWITCHED RELUCTANCE MOTOR

—In this paper, the switched-reluctance motor uses an electronic position sensor to determine the angle of the rotor shaft and solid state electronics to switch the stator windings, which also offers the opportunity for dynamic control of pulse timing and shaping. This differs from the apparently similar induction motor which also has windings that are energized in a rotating phased sequence, in that the magnetization of the rotor is static (a salient pole that is made 'North' remains so as the motor rotates) while an induction motor has slip, and rotates at slightly bellow synchronous speed. This absence of slip makes it possible to know the rotor position exactly, and the motor can be stepped arbitrarily slowly.The proposed method is implemented on a 100W, 48V, 8/6, 4 phase SRM drive for validation purposes.

Analysis of Switched Reluctance Motor Performance with Different Slot Pole Combinations

International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022

The Switched Reluctance Motors are getting popularity among different applications like electric vehicles and traction due to their simple construction, lower cost and better efficiency. It also have the advantages of low rotor inertia, small size, high pickup, effective and easy cooling etc. Due to its simple structure, switch reluctance motors are mainly used in electric vehicles, vacuum cleaners, washing machines, servo types and variable speed applications. The switch reluctance motor has a rugged structure and is suitable for vibration and high temperature zones. The torque generated by the switch reluctance motor does not depend on the polarity of the phase current. As a result, fewer semiconductor switches are used in power converters. In addition, the losses incurred by SRM motors come only from the stator. Therefore, it can be easily cooled. In this work, the performance of different slot pole combination of SRM is analysed and compared. The Slot poles combinations taken for Analysis are : 6/4, 8/6 and 12/10. The main parameters on which the performance of SRM is compared are Electromagnetic Torque, Torque Ripple and Inductance in Transient Analysis and Output Torque and Power in Steady State Analysis. It is found that with increasing slot pole combination of SRM, the torque ripple decreases and average torque increases.

Comparison of Three Novel Types of Two-Phase Switched Reluctance Motors Using Finite Element Method

Progress In Electromagnetics Research, 2012

This paper describes the performance characteristics and comparison results of three different types of two-phase switched reluctance motors (SRM). This collection includes conventional, stepped rotor and slanted rotor two-phase SRMs. These motors have four stator poles and two rotor poles, named 4/2 configuration. The main difference between these configurations is their rotor structures. The number of turns and areas of all stator pole faces jointly involving in torque production mechanism in the motors are taken to be equal. The terminal inductance per phase, flux linkage of each stator pole winding, and components of leakage inductances are determined and plotted for different rotor positions and excitation currents. Finally, the static torque for different forced current levels and rotor positions are also presented for each motor.

A Stepped Two Phase Configuration for Switched Reluctance Motor with High Starting Torque

Majlesi Journal of Electrical Engineering, 2010

The Switched Reluctance (SR) motor is a simple and robust machine, which has found application over a wide range of different power and speed shapes. This paper briefly reviews the different types of SR motors with different geometries and then presents a new configuration for a two phase SR motor with step shaped rotor poles. This motor has the ability to start and run in a specified direction without any difficulties. In other words the motor will always have starting torque no matter where the rotor is positioned. Also centrifugal switch is presented and mounted on the motor shaft for a sudden advancement of current-pulses relative to the rotor position after reaching a preset motor speed in order to develop a higher torque at starting. Then the machine is analyzed in the generator mode. To evaluate the performance of the switched reluctance machine in motoring as well as generating mode, two types of analysis, namely numerical technique and experimental study have been utilized. In the numerical analysis, due to the highly non-linear nature of the motor, a three dimensional finite element analysis is employed, whereas in the experimental study, a prototype motor has been built and tested.

Single-Controllable-Switch-Based Switched Reluctance Motor Drive

The Switched Reluctance Motor is a simple structure, ruggedness, and inexpensive manufacturing capability. The conventional power converter for Switched Reluctance Motor Drive requiring two switches per phase in this case study single switch is required per phase and its MATLAB simulation is done. This new drive system retain the unique feature of self starting for all rotor position. Simulation result based on non-linear model of the motor drive system, due to the single switch used cost of the drive is low and losses also minimized. This new drive system take attention due to its lowest cost structure ,packaging compactness, self-starting feature, variable-speed operation, fault tolerant tendency. Because of these merits, the new drive system offers a viable alternative for conventional drive. It is used in fan, blowers, hand tool, home appliances.

Design of switched Reluctance Motor with Exterior and Interior Rotor

This paper presents the design procedure for three phase Switched Reluctance Motor (SRM) with two different cases case1: Design of SRM with Exterior case2: Design of SRM with Interior Rotor. It describes the comparison results and the performance characteristics of the SRM with two cases of SRM. In electrical aspects, Finite Element Analysis (FEA) is done in order to verify the design of SRM. The proposed design is done in order to obtain high torque compared with conventional motor. It describes with minimum leakage flux, high torque is obtained. This can be applied for applications such as fans, compressor, electric vehicle etc. The design procedure in this work is carried out using MagNet electromagnetic simulation package. Obtained results using Finite Element Analysis gives the conditions of flux linkages, static torque, of both rotor configurations.