Design and Performance of a Single Stator, Dual Rotor Induction Motor

Sinha, Sumita; Deb, Nirmal K.; Mondal, Nitesh; Biswas, Swati

doi:10.1109/peds.2007.4487852

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…2, is similar to that of a conventional induction motor, but with two rotors in series, which can run at different speed (hence different slip) as explained earlier [2,3]. Flux of the two rotors, when run at different load, changes accordingly and is dependent on slip of rotor 1 (s 1 ) and rotor 2 (s 2 ).…”

Section: Equivalent Circuitmentioning

confidence: 65%

“…The double rotor induction machine [1][2][3] has two mechanically separated rotors inside, which are identical and of squirrel cage type, axially separated from each other with a small axial air gap at the middle of the stator along the same axis, under the span of a single stator, as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

“…In order to compensate for this reduction of torque, the rotors are designed as double cage construction. The basic design data and elaborate performance graphs has been published [3,6], but this paper presents the step-by-step complete design details for a double rotor double cage motor, that are different from a conventional induction motor, along with experimental verification of the motor parameters.…”

Section: Introductionmentioning

confidence: 99%

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The Design and its Verification of the Double Rotor Double Cage Induction Motor

Sinha¹,

Deb

Biswas

2016

J. Inst. Eng. India Ser. B

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The concept of a double rotor motor presented earlier and its equivalent circuit has been developed, showing a non-linear parameter content. The two rotors (which are recommended to be double cage type for development of high starting torque) can run with equal or unequal speed independently, depending on their individual loading. This paper presents the elaborate design procedure, step-by-step, for the double rotor double cage motor and verifies the designed data with that obtained from three separate tests (compared to two for conventional motor) on a prototype, such that optimum performance can be obtained from the motor.

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Section: Equivalent Circuitmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Design and its Verification of the Double Rotor Double Cage Induction Motor

Sinha¹,

Deb

Biswas

2016

J. Inst. Eng. India Ser. B

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“…Dual rotor or stator electric machines are machines that are built by combining two similar or dissimilar electric machines. There are different types of combined electric machines such as dual-stator induction machines (Rodrigo et al , 2012; Cheng and Han, 2014), dual-stator winding (Ojo and Wu, 2008), dual-rotor hysteresis motors (Ghanbari et al , 2016), dual-rotor permanent magnet synchronous machines (Zhao et al , 2015), dual-stator permanent magnet synchronous machines (Jiang et al , 2015), dual-rotor switch reluctance machines (Yang et al , 2016) and dual-rotor induction machines (Cai and Xu, 2014; Sinha et al , 2007).…”

Section: Introductionmentioning

confidence: 99%

Dynamic and steady state modeling of permanent magnet induction machine

Izadfar

Naseri

2018

COMPEL

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Purpose Modeling electric machines is one of the powerful approaches for analyzing their performance. A dynamic model and a steady-state model are introduced for each electric machine. Permanent magnet induction machine (PMIM) is a dual-rotor electric machine, which has various advantages such as high-power factor and low magnetizing current. Studying PMIM and its modeling might be valuable. The purpose of this paper is to introduce a simple and accurate method for dynamic and steady-state modeling of PMIM. Design/methodology/approach In this paper, arbitrary dqo reference frame is used to model PMIM. First, three-phase dynamic equations of stator and rotors are introduced. Then, they are transferred to an arbitrary reference frame. The voltage and magnetic flux equations aligned at dqo axes are obtained. These equations give the dynamic model. To investigate the results, PMIM simulation is performed according to obtained dynamic equations. Simulation results verify the analytic calculations. Findings In this paper, dynamic equations of PMIM are obtained. These equations are used to determine dynamic equivalent circuits of PMIM. Steady-state equations and one phase equivalent circuit of the PMIM using phasor relations are also extracted. Originality/value PMIM equations along dqo axes and their dynamic and steady-state equivalent circuits are determined. These equations and the equivalent circuits can be transformed to different reference frames and analyzed easily.

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“…However, the improvement of power density for these motors is limited due to the simple structure [5,6]. In order to improve the power density, a large number of researchers have paid more attention to special motors such as dual-stator permanent synchronous motor (DSPMSM) [7][8][9][10], dual-rotor permanent synchronous motor (DRPMSM) [11][12][13][14] and compound structure PMSM (CSPMSM) [15,16], which all contain double air gaps and can output more torque and power. Therefore, these motors are more suitable to be used in EVs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Electromagnetic, Thermal and Mechanical Characteristics of a Five-Phase Dual-Rotor Permanent-Magnet Synchronous Motor

Zhao

Liu

et al. 2015

Energies

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This paper investigates of a kind of five-phase dual-rotor permanent-magnet synchronous motor (DRPMSM), which contains dual rotors and a single stator. This kind of motor has the potential advantages of high power density, high reliability and high efficiency, which make it more appropriate for using in electric vehicles (EVs). In order to evaluate the most suitable power level for this kind of structure, the electromagnetic, the thermal and the mechanical characteristics are investigated in this paper. The length to diameter ratio of motors is researched to obtain the highest power density and then the optimum ratio is obtained. Based on the optimum ratio, the thermal characteristics are researched under natural condition and forced-air cooling condition with different wind speeds. In addition, the mechanical characteristics are analyzed under no-load and different loads conditions, respectively. All of the results are analyzed by two-dimension (2-D) and three-dimension (3-D) finite element method (FEM) simulation, which provide a good reference to select suitable power level for this kind of motor structure. Finally, a DRPMSM prototype is manufactured and tested. The experimental results effectively verify the FEM results.

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Design and Performance of a Single Stator, Dual Rotor Induction Motor

Cited by 7 publications

References 1 publication

The Design and its Verification of the Double Rotor Double Cage Induction Motor

The Design and its Verification of the Double Rotor Double Cage Induction Motor

Dynamic and steady state modeling of permanent magnet induction machine

Investigation of Electromagnetic, Thermal and Mechanical Characteristics of a Five-Phase Dual-Rotor Permanent-Magnet Synchronous Motor

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