Analysis of Linear Switched Reluctance Motor having gashed pole
19 Jun 2014-pp 1-3
TL;DR: The two dimensional (2-D) finite element analysis (FEA) results, have demonstrated validity of the proposed new design of a four phase Linear Switched Reluctance Motor.
Abstract: In this paper, the results of a finite element analysis are carried out on new stator geometry of a four phase Linear Switched Reluctance Motor (LSRM). In the new geometry, stator pole faces are gashed. LSRM performance for variable load conditions is discussed. The two dimensional (2-D) finite element analysis (FEA) results, have demonstrated validity of the proposed new design.
Citations
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01 Jan 1992
TL;DR: In this article, the position-phase current projile for current feeding a 4-phase, 4 kW switched reluctance motor, results in a single input, linear. decoupled output torque controller, which provides low torque ripple.
Abstract: Optimal precalculation of the position-phase current projile for current feeding a 4-phase, 4 kW switched reluctance motor, results in a single input, linear. decoupled output torque controller, which provides low torque ripple. A bicubic spline interpolation was used to model the non-linear experimental data. The algorithm is bused 011 minimizing both the average and peak current hence improves the dynamic performance of the novel six switch, current fed, igbt 4 kW, 40 kHz inverter. Test results by instuntaneous speed measurement over the speed runge 100-300 rpm, ruted torque, open-loop optimizing technique are presented,
74 citations
TL;DR: In this article, a novel tilted Linear Switched Reluctance Motor (LSRM) with reduced mass, volume, force ripple and improved force profile is presented for high starting force applications.
Abstract: High starting force with reduced volume and mass are the primary importance in most of the linear transportation applications. This paper presents a novel tilted Linear Switched Reluctance Motor (LSRM) with reduced mass, volume, force ripple and improved force profile. Three Dimensional (3-D) finite element analyses are carried out on the proposed design to estimate the performance the motor. A thorough comparison has been made between the basic and the proposed structures. Experimental results reveal that, the proposed design is well suited for high starting force applications.
4 citations
Cites background from "Analysis of Linear Switched Relucta..."
...Effect and mitigation of force ripple in LSRMs are extensively found in [9-14]....
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References
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Book•
01 Aug 1993
TL;DR: This paper presents a meta-modelling framework for computer-aided design of the power-electronic controller and some examples show how this approach can be applied to motor design.
Abstract: Introduction 1. Energy conversion principles 2. Motor design 3. Dynamic operation 4. Computer-aided design 5. The power-electronic controller 6. Control strategies 7. Losses and cooling 8. Applications 9. Example design 10. Tests and measurements References Index
1,263 citations
"Analysis of Linear Switched Relucta..." refers background in this paper
...Linear switched reluctance motors are an attractive alternative to linear induction or synchronous machines due to lack of windings on the stator or translator structure, easier manufacturing, good fault tolerance capability [1]....
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TL;DR: A new strategy of PWM current control for smooth operation of the drive is presented that includes a current control strategy during commutation when torque ripple minimization is of utmost importance.
Abstract: Higher torque ripple is one of the few drawbacks of switched reluctance motor (SRM) drives which otherwise possess excellent characteristics for applications in many commercial drives. This paper begins with an extensive review of torque ripple reduction methods that appear in the literature and then presents a new strategy of PWM current control for smooth operation of the drive. This method includes a current control strategy during commutation when torque ripple minimization is of utmost importance.
390 citations
13 Feb 1994
TL;DR: A new strategy of PWM current control for smooth operation of the drive is presented, which includes a current control strategy during commutation when torque ripple minimization is of utmost importance.
Abstract: Higher torque ripple is one of the few drawbacks of switched reluctance motor (SRM) drives, which otherwise possess excellent characteristics for applications in many commercial drives. This paper begins with an extensive review of torque ripple reduction methods that appear in the literature and then presents a new strategy of PWM current control for smooth operation of the drive. This method includes a current control strategy during commutation when torque ripple minimization is of utmost importance. >
224 citations
29 Jun 1992
TL;DR: In this paper, the position-phase current profile for current feeding a four-phase, 4 kW switched reluctance motor is optimized to minimize both the average and peak current and hence improves the dynamic performance of the novel six-switch, current-fed, 4-kW, 40 kHz IGBT inverter.
Abstract: Optimal precalculation of the position-phase current profile for current feeding a four-phase, 4 kW switched reluctance motor results in a single-input, linear, decoupled output torque controller that provides low torque ripple. A bicubic spline interpolation was used to model the nonlinear experimental data. The algorithm is based on minimizing both the average and peak current and hence improves the dynamic performance of the novel six-switch, current-fed, 4 kW, 40 kHz IGBT inverter. Test results are presented. >
160 citations
03 Oct 1999
TL;DR: In this article, a converter topology with a minimum number of power devices and control implementations to facilitate the pulsation-free force control of the linear switched reluctance machines is investigated for the first time.
Abstract: The converter topology with a minimum number of power devices and control implementations to facilitate the pulsation-free force control of the linear switched reluctance machines are investigated for the first time in this paper. The minimization of the devices offers cost reduction, compact packaging, and enhanced overall reliability. With that in view, a topology with 3N/sub sc/+3 devices is chosen where N/sub sc/ is the number of sectors in the linear machine. The propulsion force with conventional control of single-phase excitation has high-commutation torque pulsation and it is overcome with a multiphase excitation strategy, proposed in this paper. Further, the proposed control strategy reduces the normal force pulsation. A systematic step-by-step design procedure of the switching strategy for the converter known as unipolar switching strategy, proportional plus integral current controller, and gating control strategy of a long linear switched reluctance machine is presented. Experimental correlation of the proposed converter arrangement and control strategy is presented with a 4.8 m-long linear switched reluctance machine in achieving the stated objectives.
108 citations
"Analysis of Linear Switched Relucta..." refers background in this paper
...Multi phase excitation to reduce the force ripple in the LSRM has been explained in [7]....
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