Analytically computing the flux linked by a switched reluctance motor phase when the stator and rotor poles overlap

Radun, A.V.

doi:10.1109/20.875277

Cited by 121 publications

(63 citation statements)

References 8 publications

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“…However, due to the heavy calculations involved most of the calculation procedures are abstract and highly ineffective. References [7][8][9][10] use flux tube analysis for the computation of the electromagnetic characteristics, however the approaches used for this are limited to the flux tube in the airgap [7], the mutually coupled analytical model using permeance value in the airgap [8], analysis of the magnetic circuit to derive the electrical equivalent form for analysis [9], and the analytical flux linkage model [10]. The approach in [7] is to compute the flux linkages as the stator and the rotor poles partially align, followed by computation of the flux linkage; the work does not use flux tube analysis, but rather it uses the computation of reluctance in the airgap.…”

Section: Introductionmentioning

confidence: 99%

Computation of Electromagnetic Torque in a Double Rotor Switched Reluctance Motor Using Flux Tube Methods

et al. 2012

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With their highly robust nature and simple design, switched reluctance machines are finding their way into numerous modern day applications. However, they produce oscillatory torque that generates torque ripple and mechanical vibrations. A double rotor structure to maximize the flux linkage and thereby increase the torque generating capability is proposed. As the machine operates close to saturation, the torque computation depends heavily on the energy conversion as the rotor rolls over the stator for a fixed pole pitch. The flux linkage characteristics are highly non-linear, hence estimation of the magnetic and mechanical parameters is extremely cumbersome. Magnetic circuit analysis by interpretation of the number of flux tubes using integration techniques at different positions of the machine to develop the flux linkage characteristics of the double rotor structure is presented. Computation of the inductances during the movement of rotor from unaligned to aligned is crucial in determining the generated torque. Relevant equations of calculations for inductance and flux linkages in the aligned, partially aligned and unaligned positions are computed. The partially aligned computation is based on the average on two intermediate positions, namely the 1/4th aligned and 3/4th aligned conditions. The static torque characteristics based on the energy conversion principles are used to compute the torque value. Results from simulation and experiments used for performance evaluation of the proposed flux tube analysis for computation of the electro-magnetic torque are presented. OPEN ACCESSEnergies 2012, 5 4009

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Section: Introductionmentioning

confidence: 99%

Computation of Electromagnetic Torque in a Double Rotor Switched Reluctance Motor Using Flux Tube Methods

et al. 2012

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“…The structure of the converter supplying the two motor windings is shown in Figure 7 [16][17][18][19][20][21][22][23][24][25][26]. The approximated model of the converter is based on the modulation of the three reference voltages by a triangular signal.…”

Section: Converter Modelmentioning

confidence: 99%

“…Errors between the measured and the reference currents attack two proportional-integral-derivative regulators type to provide the two reference voltages required for generating the two control signals of the IGBT transistors. Current Regulators parameters are calculated by the Genetic Algorithms method to minimize torque ripple and reduce thereafter the fluctuation of the response speed [16][17][18][19][20][21][22][23][24][25][26].…”

Section: Currents Regulatorsmentioning

confidence: 99%

Modelling and Control of Three Phase Switching Synchronous Motor Dedicated to Electric Cars

Tounsi¹

2017

IJECEC

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Abstract:In this paper, we present a design and control methodology of an innovated structure of three phases switching synchronous motor. The design process is based on analytical method taking in account of the interactions between the control algorithm and the design program. The control strategy is based on the pulse width modulation technique imposing currents sum of a continuous value and a value having a shape varying in phase opposition with respect to the variation of the inductances. This control technology can greatly reduce vibration of the entire system due to the strong fluctuation of the torque developed by the engine, generally characterizing switching synchronous motors. Subsequently, a systemic design and control program is developed. This program is validated following the implementation and the simulation of the control model in the simulation environment Matlab-Simulink. Simulation results are with good scientific level and encourage subsequently the industrialization of the global system.

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“…where the unaligned inductance L u is calculated function of geometry data [4,5], and I f is the phase current.…”

Section: Model's Basicsmentioning

confidence: 99%

“…Some of them, as [4][5][6][7] discussed analytical models based on motor geometry data, while others were dedicated to the SRM models which employ magnetic equivalent circuits [8,9]. Other models are based on finite element analysis (FEA) [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Two Simple Analytical Models, Direct and Inverse, for Switched Reluctance Motors

Someşan

Padurariu²,

Viorel³

2013

PIER M

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Abstract-This paper presents two simple analytical models of the switched reluctance motor. The first model is constructed on two flux linkage-current characteristics: the aligned position one, calculated via finite element analysis (FEA), and the unaligned position characteristic calculated by using motor geometry data. The second model is based on three flux linkage-current characteristics: the aligned, unaligned and average one, obtained by employing the FEA. In both cases the direct and inverse models are defined. The models consider the core nonlinearity and the influence of the rotor position on the motor behavior. The estimated magnetizing and torque characteristics are compared with that calculated via two dimensions FEA for a switched reluctance motor (SRM) sample and with the test bench obtained ones. The merits and the drawbacks of the models are evinced.

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Analytically computing the flux linked by a switched reluctance motor phase when the stator and rotor poles overlap

Cited by 121 publications

References 8 publications

Computation of Electromagnetic Torque in a Double Rotor Switched Reluctance Motor Using Flux Tube Methods

Computation of Electromagnetic Torque in a Double Rotor Switched Reluctance Motor Using Flux Tube Methods

Modelling and Control of Three Phase Switching Synchronous Motor Dedicated to Electric Cars

Two Simple Analytical Models, Direct and Inverse, for Switched Reluctance Motors

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