Efficiency Measuring of Electric Drive with Traction Synchronous Motor with Permanent Magnets

Břoušek, Josef; Krcmar, Lukas; Rydlo, Pavel

doi:10.1109/ecmsm51310.2021.9468836

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…In the case of the considered IPMSM, the nominal cut-off frequencies were 15 Hz in the d axis and 10 Hz in the q axis. The responses of the system were measured at frequencies of (1,3,8,24,70,200) Hz for both axes as illustrated in Figure 3 displaying interpolation of the measured data by the model. The responses at the tested frequencies are obtained by fast Fourier transform (FFT).…”

Section: Frequency Domain Identification In Standstill (Offfreq)mentioning

confidence: 99%

“…The state-of-theart approach to maximization of the machine efficiency is based on detailed measurement of all operating points on a fine grid and creation of efficiency maps of the machine. This procedure is commonly used for surface mounted PMSM [1,2], IPMSM [3], or SyRM [4,5]. If measurements are not available, the efficiency map can be also computed by finite element analysis (FEA) [6].…”

Section: Introductionmentioning

confidence: 99%

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Dependence of IPMSM Motor Efficiency on Parameter Estimates

et al. 2021

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The efficiency of an IPMSM motor is influenced by the operating point of the machine. Conventional approaches to generate measured efficiency maps may be too expensive to use in some situations, thus it often replaced by simpler variants based on parametric models. A promising approach is to combine model-based approaches with online parameter identification methods which would allow following changes of the parameters. However, such approaches may also result in deteriorated performance if the online parameter estimation is inaccurate. We present a systematic experimental study of the influence of the parameter estimates on the efficiency of a 4.5 kW IPMSM drive and analyze the sources of inaccuracy. The first outcome of this study is that none of the tested methods performs well when the machine is fully loaded, which deteriorates overall performance. The second outcome is that the conventional maximum torque per ampere/current (MTPA/MTPC) is not an accurate optimization criterion. The overall performance of the compared methods thus heavily depends on the testing profile. When a significant part of the profile is at full load, the methods based on online estimation are unsuitable and parameters estimated offline using frequency domain provides better efficiency under the maximum torque per current control strategy.

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Section: Frequency Domain Identification In Standstill (Offfreq)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dependence of IPMSM Motor Efficiency on Parameter Estimates

et al. 2021

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“…Diverse research continues to find solutions for better performance [10][11][12][13][14][15][16][17][18][19]. In the actual analysis, the method presented in [20] is detailed in a new specific case of efficiency maps constitution, continuing the experience in previous research [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

POPESCU,

CRAIU

2023

RRST-EE

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Using more than one motor in an EV (Electric Vehicle) powertrain enhances the vehicle’s torque, acceleration, and speed capabilities. A more tractive force produced by the electric powertrain requires more electric current from the battery. In modern EVs, mechanical power production can be approached to the wheels reducing the mechanical losses in the transmissions. It is the case with multiple-motor powertrains. Several advantages regarding vehicle control, physical performance, and energy efficiency improvement are obtained. In the current study, a BLDC (brushless dc) motor is investigated from the efficiency point of view to build a multiple-motor powertrain. A new methodology uses analytic calculations, simulations, and physical measurements. A powertrain with three identical motors results in a new vehicle configuration. Each motor's energy consumption improvements are analyzed following a normalized testing procedure. The results are compared with those of a single-motor powertrain.

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Comparison of the propulsion of electric vehicles for passenger cars and buses in terms of efficiency optimization

Bendiák

Sandor

2021

2021 IEEE 4th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)

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Efficiency Measuring of Electric Drive with Traction Synchronous Motor with Permanent Magnets

Cited by 3 publications

References 5 publications

Dependence of IPMSM Motor Efficiency on Parameter Estimates

Dependence of IPMSM Motor Efficiency on Parameter Estimates

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

Comparison of the propulsion of electric vehicles for passenger cars and buses in terms of efficiency optimization

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