Fast Calculation of Carrier Harmonic Loss in Permanent Magnet of IPMSM Under PWM VSI Supply Over Entire Working Range

Zhu, Sa; Wang, Hao; Zhang, Jingwei; Lu, Zhipeng; Cheng, Ming

doi:10.1109/tec.2019.2901299

Cited by 25 publications

(44 citation statements)

References 25 publications

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“…The IPMSM in Prius 2010 is used as the target motor for calculation, and its parameters are summarised in Table 1 [1, 13, 18]. Fig.…”

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

“…The relationship between the PWM voltage harmonics and the resulting CHILs will be investigated at different operating conditions, respectively. In this section, the operating condition A2, which is the same as working condition B in [13], is chosen as an example for the calculation.…”

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

“…With the method in [8], naturally sampled space vector PWM strategy is used to generate the PWM voltage based on the parameters of the inverter shown in Table 1 and the on‐load back EMF obtained from the TSFEA using the SCS excitation [13]. Then, the coupled field‐circuit 2D TSFEA under PWM VSI supply is used to compute the flux density waveform of each element.…”

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

“…Then, the coupled field‐circuit 2D TSFEA under PWM VSI supply is used to compute the flux density waveform of each element. The time step is set to 1/4800/112 s to distinguish the dominant PWM voltage harmonics around 2 f c , which means there are 4032 steps in one electrical period at operating point A2, where the fundamental frequency f o is 400/3 Hz because the speed is 2000 r/min and the pole number is 8 [13]. By applying the fast Fourier transform on the flux density waveform in one electrical period, the amplitude and frequency of each harmonic component are obtained.…”

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

“…Recently, a method for fast calculating the PM eddy current losses caused by PWM voltage harmonics in the IPMSM over the entire working range was proposed in [13], which is based on the combination of the frozen differential reluctivity tensor method (FDRTM) [14, 15] and the linear time‐harmonic finite‐element analysis (THFEA) [16]. The key idea of this method is that the flux density variations generated by the harmonic voltages are too small to affect the saturation of the ESSs.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Fast calculation of carrier harmonic iron losses caused by pulse width modulation in interior permanent magnet synchronous motors

Zhu

Dong

et al. 2020

IET Electric Power Applications

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In this paper, the rotor stress is analysed for a highspeed permanent magnet (PM) machine (HSPMM) with segmented magnets retained by a carbon-fibre sleeve. The influence of rotor PM segmentation is firstly considered in the stress analysis. It is found that when the segmented magnets are under tensile stress, significant sleeve stress concentration will occur due to magnet edging effect. By contrast, the PMs will benefit from the segmentation with reduced tangential stress. This stress reduction effect is enhanced when the number of PM segments is larger. Furthermore, the influence of PM segmentation on the worst operating scenario is determined. In order to avoid stress concentration due to PM segmentation, the design guidelines are then given by investigating the influence of sleeve thickness and interference fit. A new design scheme of sleeve thickness is proposed based on the identified worst case scenarios. Finally, a 6-slot 4-pole high speed PM machine with segmented magnets retained by carbon-fibre sleeve is prototyped and tested at the speed of 90krpm. The rotor stability indirectly indicts the validity of the theoretical analysis and design scheme.

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“…The IPMSM in Prius 2010 is used as the target motor for calculation, and its parameters are summarised in Table 1 [1, 13, 18]. Fig.…”

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

Section: Fast Calculation At One Operating Pointmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fast calculation of carrier harmonic iron losses caused by pulse width modulation in interior permanent magnet synchronous motors

Zhu

Dong

et al. 2020

IET Electric Power Applications

Self Cite

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Fast calculation of eddy current losses caused by pulse‐width modulation in magnets of surface‐mounted PM machines based on small‐signal time‐harmonic finite element analysis

Zhu

Wang

2020

IET Electric Power Applications

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This study presents a novel method for fast calculating the eddy current losses (ECLs) caused by pulse‐width modulation (PWM) harmonic voltages in the permanent magnets (PMs) of surface‐mounted PM synchronous machines (SPMSMs) with distributed windings or concentrated windings. Based on the small‐signal models of the SPMSMs, the functional relationships between the high‐frequency harmonic voltages (HFHVs) in the rotor reference frame and the corresponding ECLs are investigated with the time‐harmonic finite element analysis (THFEA). Instead of using complex analytical PM ECL models, the relationships are directly established with some numerical methods, such as the Gauss quadrature and the piecewise cubic Hermite interpolation method, based on the results from THFEA. With the functional relationships, the total PM ECL caused by all the HFHVs is simply calculated by summing the ECL generated by each harmonic component in the spectra of the PWM voltage in the rotor reference frame. Both two‐ and three‐dimensional (2D and 3D) models of the SPMSMs are calculated. Besides, to further reduce the needed steps of 3D THFEA, an equivalent 2D THFEA method using modified PM conductivities under different‐axis HFHV excitations is proposed. The merits of the proposed method are validated by comparing with the traditional time‐stepping finite element method.

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Hybrid Method for Calculating Eddy Current Loss in Permanent Magnet with Axial Segment of IPMSM

Jun

Kim

et al. 2022

2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation (CEFC)

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Fast Calculation of Carrier Harmonic Loss in Permanent Magnet of IPMSM Under PWM VSI Supply Over Entire Working Range

Cited by 25 publications

References 25 publications

Fast calculation of carrier harmonic iron losses caused by pulse width modulation in interior permanent magnet synchronous motors

Fast calculation of carrier harmonic iron losses caused by pulse width modulation in interior permanent magnet synchronous motors

Fast calculation of eddy current losses caused by pulse‐width modulation in magnets of surface‐mounted PM machines based on small‐signal time‐harmonic finite element analysis

Hybrid Method for Calculating Eddy Current Loss in Permanent Magnet with Axial Segment of IPMSM

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