Detent Force Reduction of an Arc-Linear Permanent-Magnet Synchronous Motor by Using Compensation Windings

Li, Bin; Zhao, Jing; Liu, Xiangdong; Guo, Youguang; Hu, Henglong; Li, Jian

doi:10.1109/tie.2016.2643619

Cited by 74 publications

(19 citation statements)

References 27 publications

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“…Therefore, based on thrust F characteristics obtained as Fig. 5, the average thrust F ave is calculated using Equation (8).…”

Section: Comparison Of Average Thrust F Avementioning

confidence: 99%

“…In the non-salient pole motor, the synchronous reactance of the d-axis, X sd is almost similar to the synchronous reactance of q-axis, X sq (X sd ≈ X sq ); therefore, reluctance force is minimized and can be neglected [6]. Cogging force in the PMLSM can be caused by the interaction between PM and the stator core of the PMLSM [8]. On the other hand, the cogging can decrease the motor efficiency, motor controllability and motor average thrust force [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of the Permanent Magnet Linear Synchronous Motor for High Thrust and Low Cogging Force Performance

Nasir¹,

Shukor²,

Firdaus³

et al. 2018

PIER M

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Abstract-Permanent magnet linear synchronous motors (PMLSM) are well known for its high thrust performance. However, such high thrust can be distorted by the existence of cogging force due to the attraction between stator core and permanent magnet (PM). To improve its performance, two parts of the PMLSM structure were considered during the design. They are PM magnetization arrangement on mover side and stator slot opening parameters on stator side. The designed models were simulated by using FEM software, and the performances of the models are then compared. The aim of the design is to achieve high thrust and low cogging force characteristics. Apart from average thrust F ave and cogging force F cog , the performance of the PMLSM is also evaluated using average thrust F ave to cogging force ratio F cog , called as thrust ratio. Based on the design, the highest thrust ratio F ave : F cog , obtained from radial, axial and Halbach models, are 2.5032, 2.6262 and 1.8437, respectively.

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“…Therefore, based on thrust F characteristics obtained as Fig. 5, the average thrust F ave is calculated using Equation (8).…”

Section: Comparison Of Average Thrust F Avementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of the Permanent Magnet Linear Synchronous Motor for High Thrust and Low Cogging Force Performance

Nasir¹,

Shukor²,

Firdaus³

et al. 2018

PIER M

View full text Add to dashboard Cite

show abstract

“…The test results meet the dynamic test requirements of ICT. A test system for brushless DC motors was designed using LabVIEW technology (Li et al, 2017).…”

Section: Literature Reviewmentioning

confidence: 99%

PMSM Parameter Identification Motor Test System Framework Based on Virtual Instrument Technology

2018

IJOMAM

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To realize the high-precision and high-efficiency parameter identification of permanent magnet synchronous motor, the parameter identification of permanent magnet synchronous motor was introduced into the servo test system. The parameter identification function of the PMSM servo system was improved while implementing the functions of the conventional test. Aiming at the complexity and limitations of the traditional permanent magnet synchronous motor parameter test method, the parameter identification algorithm and the motor test system were combined. Based on virtual instrument technology, the permanent magnet synchronous motor test platform of the tow type was adopted to realize the four-quadrant operation of the motor and the automatic test of the servo system. The variable gain Landau algorithm had good convergence speed, convergence precision and good dynamic response capability. The hardware platform of the motor test system based on PMSM parameter identification was built. The parameter identification function of permanent magnet synchronous motor was realized by the mixed programming method of LabVIEW and Matlab. The results show that the parameter identification of permanent magnet synchronous motor based on motor test platform had better identification accuracy and convergence speed.

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“…Adjusting the core length can change the phase of the end detent force produced by the two ends, so as to offset them [16]. Besides, the end tooth shape can also be optimised [17] and the half-filling slots at the ends can be employed to reduce the end detent force [18]. In addition, the Taguchi method [19] is also applied in the optimisation of PMLSM.…”

Section: Introductionmentioning

confidence: 99%

Design principle of a 16‐pole 18‐slot two‐sectional modular permanent magnet linear synchronous motor with optimisation of its end tooth

Huang

Zhang

et al. 2020

IET Electric Power Applications

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In order to improve the performance of the linear motor system, it is necessary to adopt a simple motor structure and effective optimisation method to reduce the detent force without decreasing the average thrust. A 16-pole 18-slot two-sectional modular permanent magnet linear synchronous motor (PMLSM) is investigated in this study, in which the primary core is divided into two modules and coupled with the secondary, forming two sections. It is found that the modular distance between the two sections affects the detent force and back-electromotive force of the whole motor. Thus, the characteristics of the detent force and the categories of the winding arrangements are analysed. The modular distance of 4τ/9 is chosen after analysis and comparison. To further suppress the detent force and improve the average thrust, a new end tooth structure including different wide and narrow tooth is proposed, which is set at the ends of each section's primary core. The design method of the end tooth parameters is obtained by theoretical derivation and the optimisation efficiency of end tooth parameters is further improved by layered optimisation design. Finally, the experiments on the 16-pole 18-slot PMLSM validate the correctness and feasibility of the proposed modular motor structure.

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Detent Force Reduction of an Arc-Linear Permanent-Magnet Synchronous Motor by Using Compensation Windings

Cited by 74 publications

References 27 publications

Design of the Permanent Magnet Linear Synchronous Motor for High Thrust and Low Cogging Force Performance

Design of the Permanent Magnet Linear Synchronous Motor for High Thrust and Low Cogging Force Performance

PMSM Parameter Identification Motor Test System Framework Based on Virtual Instrument Technology

Design principle of a 16‐pole 18‐slot two‐sectional modular permanent magnet linear synchronous motor with optimisation of its end tooth

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