Analytical modelling for magnetic field of interior permanent magnet synchronous motors accounting for bridge saturation

Wang, Huimin; Sun, Zihan; Zhong, Saichao; Yan, Yan; Wu, Shuang; Guo, Liyan

doi:10.1049/elp2.12193

Cited by 2 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the initial design of the SPM motor, its structural and electromagnetic arrangements need to be continuously adjusted. Although the FEA‐based numerical analysis has the advantage of accurate calculation, where, for example, the saturation and complex motor structures can be considered [13], its disadvantages such as slow simulation speed, less physical interpretation and large computing resource requirement are barriers for it to be used in the initial design and optimisation of motors. Subsequently, the analytical methods are more effective in this aspect because of their acceptable accuracy and fast calculation speed.…”

Section: Introductionmentioning

confidence: 99%

Hybrid analytical model for air‐gap magnetic field prediction of surface‐mounted permanent magnet motors with a quasi‐regular polygon rotor

Chen

Yuan

et al. 2023

IET Electric Power Appl

View full text Add to dashboard Cite

In this article, a hybrid analytical model for a quasi‐regular polygon rotor (QPR) is proposed. It mainly uses the subdomain method and conformal mapping to solve a non‐circular boundary in the QPR. Firstly, the subdomain method combined with an equivalent surface current method is used to calculate the air‐gap magnetic field considering a slotted stator with a circular rotor. Secondly, by segmenting the non‐circular boundary in the QPR, the complex relative air‐gap permeance of the QPR can be calculated using the conformal mapping. Thirdly, this complex relative air‐gap permeance modifies the air‐gap magnetic field calculated in the first step to obtain the actual magnetic field distributions. Consequently, no‐load and loaded air‐gap flux densities, back‐electromotive force and torque can be obtained. A 12‐pole/3‐phase permanent magnet motor is modelled using the proposed hybrid analytical model, which is validated by finite‐element analysis and experiment. This proposed hybrid analytical model presents a new way of processing the QPR. Its calculation speed is nearly 50 times faster than the finite‐element analysis, which is of great help to the initial design and optimisation of machines with QPRs.

show abstract

Section: Introductionmentioning

confidence: 99%

Hybrid analytical model for air‐gap magnetic field prediction of surface‐mounted permanent magnet motors with a quasi‐regular polygon rotor

Chen

Yuan

et al. 2023

IET Electric Power Appl

View full text Add to dashboard Cite

show abstract

Accurate Analytical Models of Armature Reaction Field for Multi-Segment Primaries Ironless PMLSM Based on Subdomain Method

Zhang

Yin²,

Li³

2022

Symmetry

View full text Add to dashboard Cite

Multi-segment-primary (MSP) ironless Permanent Magnet Linear Synchronous Machine (PMLSM) can be widely applied in long primary, long stroke, and heavy load applications. Therefore, an accurate armature reaction field analysis is very important to control this novel topology motor. In order to simplify the research process, a two-segment-primary (TSP) ironless PMLSM in this article was proposed as the smallest unit. The analytical models of the armature reaction field of the motor based on the subdomain method (SDM) were established considering the finite length of the segment-primary (SP) and the interval distance between the TSP. Then, the coupling effect between the TSP and the end effect of the TSP on the armature reaction field were quantitatively analyzed. Furthermore, the coupling inductance between the TSP can be analytically calculated, which is influenced by the coupling effect. To validate the effectiveness of the proposed models, a prototype of the 24s/28p TSP ironless PMLSM was manufactured and tested. It was shown that the proposed models match well with the simulated and experimental results. As well, the maximum variation rate of the end coupling inductance was about 50.13%.

show abstract

Analytical modelling for magnetic field of interior permanent magnet synchronous motors accounting for bridge saturation

Cited by 2 publications

References 25 publications

Hybrid analytical model for air‐gap magnetic field prediction of surface‐mounted permanent magnet motors with a quasi‐regular polygon rotor

Hybrid analytical model for air‐gap magnetic field prediction of surface‐mounted permanent magnet motors with a quasi‐regular polygon rotor

Accurate Analytical Models of Armature Reaction Field for Multi-Segment Primaries Ironless PMLSM Based on Subdomain Method

Contact Info

Product

Resources

About