Maximizing the energy efficiency of a PMSM for vehicular applications using an iron loss accounting optimization based on nonlinear programming

Rabiei, Ali; Thiringer, Torbjörn; Lindberg, J. Johan

doi:10.1109/icelmach.2012.6349998

Cited by 28 publications

(8 citation statements)

References 6 publications

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“…The motor's currents can be controlled using an MTPA and MTPV control strategy or these can be controlled, as described in [16,17], to account for the nonlinearities of the electric motor in order to achieve an optimal motor efficiency. At steady state, a torque equilibrium of the electrical (T e ) and mechanical torque (T m ) is achieved.…”

Section: Motor and Vehicle Dynamicsmentioning

confidence: 99%

Inverter and Battery Drive Cycle Efficiency Comparisons of CHB and MMSP Traction Inverters for Electric Vehicles

Kersten

Kuder

Grunditz

et al. 2019

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

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This papers investigates the performance of several inverter types for electric vehicles. A standard twolevel and two seven-level multilevel inverters, a cascaded H-bridge (CHB) and a modular multilevel series parallel (MMSP) inverter, are considered. Based on the AC impedance spectra measured on a single battery cell, the battery pack impedances of the multilevel and two-level inverter systems are modeled. The inverter losses are modeled using the semiconductors' datasheets. Based on the loss models, the inverter and battery efficiency during different driving cycles are assessed. In comparison to the two-level inverter system, the multilevel inverter drivetrains show an increased drivetrain efficiency, despite increased battery losses. The MMSP topology showed the best result. In comparison to the CHB topology, the battery losses were reduced by the MMSP inverter system.

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Section: Motor and Vehicle Dynamicsmentioning

confidence: 99%

Inverter and Battery Drive Cycle Efficiency Comparisons of CHB and MMSP Traction Inverters for Electric Vehicles

Kersten

Kuder

Grunditz

et al. 2019

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

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“…The rotor losses of the traditional PMSMs have been studied by experts and researchers and the calculation results has been verified in [20][21][22]. In [23][24][25], the influences on different rotor sleeves on the rotor eddy current losses were considered.…”

Section: Analytic Calculation Modelmentioning

confidence: 99%

Optimal Design of the Rotor Structure of a HSPMSM Based on Analytic Calculation of Eddy Current Losses

Liang

Liu

2017

Energies

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Abstract:The rotor eddy current losses of a high-speed permanent magnet synchronous motor reduce the efficiency of the motor and increase the temperature rise of the rotor. In severe cases, the permanent magnet of the rotor can be demagnetized, affecting the safe operation of the motor. In this paper, an analytical model of rotor eddy current losses calculation based on Maxwell equations is introduced. The eddy current losses of rotor structures, e.g., protection sleeve, shield layer and permanent magnets, are analyzed. The calculation results of rotor eddy current losses are compared with two-dimensional (2D) finite element analysis. The comparison verifies the accuracy and versatility of analytical calculation. Finally, the influences of the variables on eddy current losses in the derived model are analyzed. Based on the principle of minimizing eddy current losses, an optimized structure with copper layers covering both inner and outer surfaces of the protective sleeve is proposed. Furthermore, the optimized distribution parameter of copper film thickness is obtained.

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“…Thus the mechanical speed of the machine and the fed electrical frequency are related by ω o = 2ω m . In this study, the nominal operating speed of ω m = 6krpm is assumed for PMSM, see Rabiei et al (2012). Assumption 8.…”

Section: Assumptionsmentioning

confidence: 99%

Feasibility Issues of using Three-Phase Multilevel Converter based Cell Balancer in Battery Management System for xEVs

Altaf

Johannesson²,

Egardt

2013

IFAC Proceedings Volumes

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The use of a three-phase (3-φ) multilevel converter (MLC) as an integrated cell balancer and motor driver is investigated for 3-φ AC applications in EVs/HEVs/PHEVs. The paper analyzed an issue of additional battery losses caused by the flow of reactive and/or harmonic power from each power cell of the 3-φ MLC battery system. The paper also investigates the size of shunt capacitor required for compensation of the losses to acceptable level. This study concludes that the size of the required capacitor is too big for the vehicle application unless some other active compensation is used as well. Another practical way to employ the MLC as a cell balancer is to use it in a cascaded connection with the conventional 3-φ two-level voltage source inverter however it may not be a cost-effective solution either due to high component count.

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Maximizing the energy efficiency of a PMSM for vehicular applications using an iron loss accounting optimization based on nonlinear programming

Cited by 28 publications

References 6 publications

Inverter and Battery Drive Cycle Efficiency Comparisons of CHB and MMSP Traction Inverters for Electric Vehicles

Inverter and Battery Drive Cycle Efficiency Comparisons of CHB and MMSP Traction Inverters for Electric Vehicles

Optimal Design of the Rotor Structure of a HSPMSM Based on Analytic Calculation of Eddy Current Losses

Feasibility Issues of using Three-Phase Multilevel Converter based Cell Balancer in Battery Management System for xEVs

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