Optimal Design of a Novel Doubly Salient Permanent Magnet Motors for High Power Ship Propulsion

Guerroudj, Cherif; Saou, Rachid; Charpentier, Jean-Frédéric; Boulayoune, Ahcene

doi:10.1109/icelmach.2018.8506914

Cited by 8 publications

(15 citation statements)

References 17 publications

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“…The electric machines used for the propulsion have to offer high efficiency, high power density and maintenance-free operation. To achieve these goals, numerous research studies have been conducted on various electrical motors topologies associated with power electronics drives as well as conventional wound field synchronous machines (WFSMs), permanent magnet synchronous machines (PMSMs), induction machines (IMs) and unconventional permanent magnet structures [2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Coil Number Impact on Performance of 4-Phase Low Speed Toothed Doubly Salient Permanent Magnet Motors

Guerroudj¹,

Charpentier

Saou

et al. 2021

Machines

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The low speed toothed doubly salient permanent-magnet (TDSPM) machine is an interesting candidate motor for electric ship applications because, of its high torque output, maintenance-free operation and flexible working modes, which gives the opportunity to increase system’s reliability, and decrease the system size, weight and noise which are key features for naval applications. However, particularly in the 3-phase configuration, the stator and rotor saliency of these machines leads to a high level of torque ripple. To overcome these drawbacks, the use of polyphase machines (with a number of phases greater than three) can be a relevant solution. In this paper, an optimal design of two kind of novel 4-phase motors is performed in order to fulfil the specifications of a high power naval ship propulsion. The designs aim to maximize the torque to mass ratio. The motors’ performances are directly linked to their structural parameters, so, the impact of the coil number in terms of mean torque, torque ripple, energy ratio values, and efficiency is also presented and analysed. The design of these two electromagnetic structures, as well as the determination of their electromagnetic performances, are carried out using a particle swarm optimization algorithm (PSO) with taking into account thermal constraint. The performance of the proposed machine in terms of mean torque, torque ripple, energy ratio, and efficiency values is presented and analysed. The results obtained reveal that the TDSPM machines with four poles/phase are good candidates to meet the requirements of high power direct-drive ship propulsion system.

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Section: Introductionmentioning

confidence: 99%

Coil Number Impact on Performance of 4-Phase Low Speed Toothed Doubly Salient Permanent Magnet Motors

Guerroudj¹,

Charpentier

Saou

et al. 2021

Machines

View full text Add to dashboard Cite

show abstract

“…Due to the merits of rugged construction, high control flexibility, and the excellent fault tolerance, doubly salient electromagnetic machine (DSEM) has been attracting attention in the aspects of aero starter-generator, wind power generation and et al [2,6]. And lots of scholars are devoted to the research of enhancing the driving efficiency and output torque performance [6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…And in the former category, [6] investigated a novel doubly salient machine with twosection twisted-rotor structure, the torque ripple and generating voltage ripple are desired to be suppressed. To maximize the torque to mass ratio, [7] proposed an optimal design method based on particle swarm optimization. In [8], two types of reluctance machines with different salient structure are comparatively studied in various performances.…”

Section: Introductionmentioning

confidence: 99%

Operating Performance Enhancing Method for Doubly Salient Electromagnetic Machine Under Light Load Condition

Zhou

Zhang

2020

IEEE Access

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Nowadays, more and more electric machines are demanded to operate under wide ranges of speed and load conditions. This paper deals with the operating performance enhancing method for doubly salient electromagnetic machine (DSEM) under light load condition. With the finding that the power loss can be decreased with reduced field current, and there's regulated space for the distribution of field current and armature current under light load condition. A novel control method with field current inner loop and speed outer loop is proposed for DSEM, the system driving efficiency is desired to be improved. Meanwhile, the cogging torque which is a main ripple source of DSEM torque can be decreased with the reduced filed current, so the output torque performance can be enhanced as well. In addition, the armature reaction of the proposed control method is researched, and the influence on the filed current control during commutation process is theoretically analyzed. The experiments on a 12/8-pole DSEM validate the correctness and flexibility of the proposed control method.

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“…To overcome these problems, new structures of variable reluctance machines, operating at low speeds, called slow machines or direct attack machines are proposed [1][2][3][4][5][6][7][8][9][10]. One of these structures, named Doubly Salient Permanent Magnet Machine (DSPM), a variable reluctance machine, with a large number of rotor and stator teeth excited by non-rotating permanent magnets housed in the stator yoke, attracts more and more attention [2,9,13]. This kind of machines is naturally well suited for low speed because its speed is directly related to the number of rotor teeth.…”

Section: Introductionmentioning

confidence: 99%

“…Several previous works suggesting various approaches for reducing vibrations and acoustic noises in these types of electrical machines have been reported. Most of these approaches are based on studying the structural topology by considering the machine configuration [11][12][13][14][15] and others on control techniques [16][17][18][19][20][21][22][23] or on compensation techniques [24]. In the present work, two approaches are combined to reduce the generated electromagnetic torque ripple rate.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Torque Ripple Minimization of Slotted Doubly-Salient-Permanent-Magnet Generator for Wind Turbine Applications

Bekhouche¹,

Saou²,

Guerroudj³

et al. 2019

PIER M

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The aim of this work is to reduce the torque ripple of a low-speed/high-torque Doubly Salient Permanent Magnet (DSPM) generator for wind turbine applications. To do this, a combined design and control-based approaches are set up to improve the overall machine performance. The design-based approach helps to develop a form of small stator/rotor teeth combination, focusing on the shapes and dimensions of the teeth that will minimize torque ripple. On the other hand, in the second approach, a control technique is designed. It employs indirect torque control (Torque Sharing Function: TSF), including a PI-controller with gains adjusted continuously for regulating the reference current. The obtained results show that by combining these two approaches, the ripple rate of the electromagnetic torque for the studied DSPM is reduced to a minimum when the teeth shapes are trapezoidal in both the stator and rotor, and the command approach also allows an improvement in the total torque shape, such that the ripple rate decreases by about 96%.

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Optimal Design of a Novel Doubly Salient Permanent Magnet Motors for High Power Ship Propulsion

Cited by 8 publications

References 17 publications

Coil Number Impact on Performance of 4-Phase Low Speed Toothed Doubly Salient Permanent Magnet Motors

Coil Number Impact on Performance of 4-Phase Low Speed Toothed Doubly Salient Permanent Magnet Motors

Operating Performance Enhancing Method for Doubly Salient Electromagnetic Machine Under Light Load Condition

Electromagnetic Torque Ripple Minimization of Slotted Doubly-Salient-Permanent-Magnet Generator for Wind Turbine Applications

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