Complimentary Force Allocation Control for a Dual-Mover Linear Switched Reluctance Machine

Pan, Jianfei; Wang, Weiyu; Zhang, Bo; Cheng, Ka Wai Eric; Yuan, Jianping; Li, Qiu; Wu, Xiaoyu

doi:10.3390/en11010023

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…Reluctance machines present good environmental behavior due to their high efficiency and inherent ease of assembly and dismantling [19]. For these reasons, among others, several studies have focused on new magnetic structures [20,21] in order to enhance their force performance [22] and increase force density by adding permanent magnets, some examples of electrical machines using permanent magnets have been developed recently in many research works [22][23][24][25][26][27]. As an example, linear switched reluctance motors (LSRM) and linear permanent magnet synchronous motors (LPMSMs) have been proposed for propelling a ropeless elevator [28], for an automotive suspension system [29], and for a linear generator in direct drive wave-power converter [30].…”

Section: Introductionmentioning

confidence: 99%

Two-Phase Linear Hybrid Reluctance Actuator with Low Detent Force

et al. 2020

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In this paper, a novel two-phase linear hybrid reluctance actuator with the double-sided segmented stator, made of laminated U cores, and an interior mover with permanent magnets is proposed. The permanent magnets are disposed of in a way that increases the thrust force of a double-sided linear switched reluctance actuator of the same size. To achieve this objective, each phase of the actuator is powered by a single H-bridge inverter. To reduce the detent force, the upper and the lower stator were shifted. Finite element analysis was used to demonstrate that the proposed actuator has a high force density with low detent force. In addition, a comparative study between the proposed linear hybrid reluctance actuator, linear switched reluctance, and linear permanent magnet actuators of the same size was performed. Finally, experimental tests carried out in a prototype confirmed the goals of the proposed actuator.

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Section: Introductionmentioning

confidence: 99%

Two-Phase Linear Hybrid Reluctance Actuator with Low Detent Force

et al. 2020

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“…Torque ripples have been one of the major challenges for SRMs due to the double salient structure and highly nonlinear torque-current-angle characteristics between the magnetic properties and torque [5][6][7][8][9][10]. Various control strategies [11][12][13][14][15] devoted to minimizing torque ripples in SRMs have been proposed by researchers in the past few decades.…”

Section: Introductionmentioning

confidence: 99%

Torque Ripple Reduction for Switched Reluctance Motor with Optimized PWM Control Strategy

Cai

Wang

et al. 2018

Energies

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The high current ripple and torque ripple are the main drawbacks of the switched reluctance motor (SRM) since the nonlinearity and double saliency, which limits its applications. In order to eliminate the current variation and torque ripple, an optimized pulse width modulation (PWM) control is presented in this paper. The voltage ratio duty is able to be predicted precisely according to the information of the motor running parameter. Based on torque sharing functions (TSFs), the current profile is pre-computed and four regions are defined according to the reference current profiles. The three modes, excitation, demagnetization and freewheeling, are flexibly chosen according to the characteristic of the current profile. It is indicated that it is better than that of conventional PWM modulation in terms of current ripple and the current tracing performance is improved without increasing the switching frequency or changing the hysteresis band. The current ripple is defined as the peak-to-peak value dividing the average value and it is reduced by 40%. A comparison in terms of the torque ripple and copper loss is also carried out: the torque ripple is significantly reduced via the proposed scheme under both magnetic linear and saturation conditions. The torque ripple and copper loss are reduced by about 70% and 12%, respectively. The validity and effectiveness of the proposed control strategy is verified by simulation and experimental results.

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“…In this context, reluctance machines present good environmental behavior due to their high efficiency and inherent ease of assembly and dismantling [2]. For these reasons, among others, there are several studies that have focused on new magnetic structures [3][4][5], in order to enhance their force performance [6] and increase force density by adding permanent magnets [7][8][9][10][11][12][13][14]. As an example, linear switched reluctance motors (LSRM) and linear permanent magnet synchronous motors (LPMSMs) have been proposed for propelling a ropeless elevator [15,16], for an automotive suspension system [17], and for a linear generator in direct drive wave-power converter [18].…”

Section: Introductionmentioning

confidence: 99%

Linear Hybrid Reluctance Motor with High Density Force

García-Amorós

2018

Energies

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Linear switched reluctance motors are a focus of study for many applications because of their simple and sturdy electromagnetic structure, despite their lower thrust force density when compared with linear permanent magnet synchronous motors. This study presents a novel linear switched reluctance structure enhanced by the use of permanent magnets. The proposed structure preserves the main advantages of the reluctance machines, that is, mechanical and thermal robustness, fault tolerant, and easy assembly in spite of the permanent magnets. The linear hybrid reluctance motor is analyzed by finite element analysis and the results are validated by experimental results. The main findings show a significant increase in the thrust force when compared with the former reluctance structure, with a low detent force.

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Complimentary Force Allocation Control for a Dual-Mover Linear Switched Reluctance Machine

Cited by 7 publications

References 26 publications

Two-Phase Linear Hybrid Reluctance Actuator with Low Detent Force

Two-Phase Linear Hybrid Reluctance Actuator with Low Detent Force

Torque Ripple Reduction for Switched Reluctance Motor with Optimized PWM Control Strategy

Linear Hybrid Reluctance Motor with High Density Force

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