Optimal Design and Validation of IPMSM for Maximum Efficiency Distribution Compatible to Energy Consumption Areas of HD-EV

Jung, Ho-Chang; Park, Gyeong-Jae; Kim, Deok-Jin; Jung, Sang-Yong

doi:10.1109/tmag.2017.2660524

Cited by 36 publications

(22 citation statements)

References 6 publications

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“…According to (26), γ MTPA is a function of the permanent magnet flux linkage λ m and the motor inductance parameters L d , L q . When the motor operates in the constant torque region, the demagnetization strength is weak, so λ m is considered as a fixed value [23] whereas L d and L q will change due to the variety of i d , i q and the operation temperature. To achieve accurate MTPA control, an additional observer is generally necessary to estimate the L d and L q in real time.…”

Section: Sensorless-mtpa Control Schemementioning

confidence: 99%

Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Shi

Wang

et al. 2019

Energies

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Different from the traditional method of the interior permanent magnet synchronous motor (IPMSM), the sensorless maximum torque per ampere (MTPA) control scheme in this paper does not need two observers for rotor position and d-q axis inductances, respectively. It only needs an adaptive sliding mode observer (ASMO) based on the extended flux (EF) to realize double-loop control and MTPA operation simultaneously. The adaptive mechanism of rotor speed is designed to ensure stability of the ASMO. The rotor position and the difference between d-axis and q-axis inductances are obtained from the estimated EF to acquire the MTPA points when the position sensor of the IPMSM is absent. The proposed scheme is realized on a 20kW IPMSM where the sensorless control performance and the MTPA control performance are tested. The effectiveness of the proposed method is verified by the experiment results.

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Section: Sensorless-mtpa Control Schemementioning

confidence: 99%

Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Shi

Wang

et al. 2019

Energies

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“…Electric machines of high power density and small volume have been receiving great interest in several industrial applications e.g., in electric vehicles in which there are constraints on the motor size and a necessary power density is required depending on the driving cycle [1,2]. Therefore, researchers are investigating several possibilities to improve the power per volume of the electric machines.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, researchers are investigating several possibilities to improve the power per volume of the electric machines. This can be achieved by improving the electromagnetic and the thermal behaviors of the machine [1][2][3][4][5][6][7][8]. The electromagnetic behavior of the motor includes optimal geometrical selection and optimal drive system whilst the thermal behavior includes better heat extraction from the motor using a cooling system.…”

Section: Introductionmentioning

confidence: 99%

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Prediction of Eddy Current Losses in Cooling Tubes of Direct Cooled Windings in Electric Machines

Ibrahim

Sergeant

2019

Mathematics

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The direct coil cooling method is one of the existing cooling techniques for electric machines with concentrated windings, in which cooling tubes of conductive material are inserted between the windings. In such cases, eddy current losses are induced in those cooling tubes because of the time variant magnetic field. To compute the cooling tubes losses, either a transient finite element simulation (mostly based on commercial software), or a full analytical method, which is more complex to be constructed, is required. Instead, this paper proposes a simple and an accurate combined semi-analytical-finite element method to calculate the losses of electric machines having cooling tubes. The 2D magnetostatic solution of the magnetic field is obtained e.g., using the free package “FEMM”. Then, the eddy current losses in the tubes are computed using simple analytical equations. In addition, the iron core losses could be obtained. In order to validate the proposed method, two cases are investigated. In Case 1, a six-toothed stator of a switched reluctance machine (SRM), without rotor, is employed in which six cooling tubes are used while in Case 2 a complete rotating SRM is studied. The proposed method is validated by a 2D transient simulation in the commercial software “ANSYS Maxwell” and also by experimental measurements. Evidently, the proposed method is simple and fast to be constructed and it is almost free of cost.

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“…1 Very recently, permanent magnet assisted synchronous reluctance motors (PMASRM), particularly PMASRM with ferrite magnets, has become an interesting alternative for low cost and high performance motors. 2 The FASRMs have a saliency ratio structure and can produce a large reluctance torque to maintain high power density.…”

Section: Introductionmentioning

confidence: 99%

Minimization of torque ripple in ferrite-assisted synchronous reluctance motors by using asymmetric stator

Zhao

Aamir

2017

AIP Advances

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Torque ripple is one of the important issues for ferrite assisted synchronous reluctance motors (FASRMs). In this paper, an asymmetrical stator is proposed for the FASRM to reduce its torque ripple. In the proposed FASRM, an asymmetrical stator is designed by appropriately choosing the angle of the slot-opening shift. Meanwhile, its analytical torque expressions are derived. The results show that the proposed FASRM has an effective reduction in the cogging torque, reluctance torque ripple and total torque ripple. Moreover, it is easy to implement while the average torque is not sacrificed. © 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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Optimal Design and Validation of IPMSM for Maximum Efficiency Distribution Compatible to Energy Consumption Areas of HD-EV

Cited by 36 publications

References 6 publications

Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Prediction of Eddy Current Losses in Cooling Tubes of Direct Cooled Windings in Electric Machines

Minimization of torque ripple in ferrite-assisted synchronous reluctance motors by using asymmetric stator

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