Magnetic Vibration Analysis of a New DC-Excited Multitoothed Switched Reluctance Machine

Liu, Chunhua; Chau, K. T.; Lee, Christopher; Lin, Fei; Li, Fuhua; Ching, T. W.

doi:10.1109/tmag.2014.2323706

Cited by 19 publications

(2 citation statements)

References 13 publications

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“…One solution to improve the output characteristics of the SRMs is to embed permanent magnets (PMs) into the motor structure for torque recovery, which has been used to produce a hybrid excitation [9][10][11][12][13][14][15][16] in SRMs. Another technique used in electric machines like SRMs and Vernier motors is to add teeth to the stator poles, which depending on the motor configuration, can increase torque and distribute the radial force over the shaft [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Two‐phase switched reluctance motor with hybrid excitation: Modeling and evaluation

Davarpanah

Mohammadi

Lang

et al. 2023

IET Electric Power Appl

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Switched reluctance machines offer a robust structure, inexpensive maintenance, and a low-cost drive. However, they can suffer from low mean torque, low torque density, and high noise. Techniques such as offering the stator poles at each phase in the shape of a C core, adding several teeth to the two poles of each C-core, and embedding permanent magnets to overcome these deficiencies are presented. Permanent magnets are embedded into the structure to create a hybrid excitation that provides a higher torque density. The C-core stator modules of the stator are toothed to improve the torque. The radial forces on the shaft are balanced. The design procedure, operating principles, and performance trade-offs are explained. Also, a magnetic equivalent circuit model is introduced. The model provides continuous relationships over the operating regions and incorporates core saturation and accurate flux tubes to attain high precision. Finite element models are also employed in the analysis and design process. The motor is prototyped, and experimental results are extracted, closely matching those obtained with the model and finiteelement analysis.

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Section: Introductionmentioning

confidence: 99%

Two‐phase switched reluctance motor with hybrid excitation: Modeling and evaluation

Davarpanah

Mohammadi

Lang

et al. 2023

IET Electric Power Appl

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“…Three-phase voltage source inverters (VSI) are widely used in industrial applications such as uninterruptable power supply (UPS) [1,2], motor drives [3][4][5], wireless power transfer [6] and distributed power generation system [7,8]. Unfortunately, this conventional topology is hard to keep the neutral point potential in a constant level under unbalanced load conditions, which leads to asymmetric output voltage [9].…”

Section: Introductionmentioning

confidence: 99%

Design and Evaluation of an Efficient Three-Phase Four-Leg Voltage Source Inverter with Reduced IGBTs

Luo

Liu

et al. 2017

Energies

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This paper presents a new three-phase four-leg voltage source inverter (VSI), which achieves a high cost effectiveness for mega-watt level system applications. The proposed four-leg inverter adopts the integrated topology with thyristors and insulated-gate bipolar transistors (IGBTs), which aims to reduce the number of IGBTs. In order to handle the zero sequence current, a neutral leg via incorporating IGBTs is artfully integrated with the regular phase legs. Furthermore, the modelling principles are elaborated and analyzed, which emphasizes switching states and voltage vectors in six segments based on the states of thyristors. Finally, by using the carrier-based pulse width modulation (PWM) method, the closed-loop current control of the proposed inverter is verified by both simulation and experimentation. a three-phase four-leg inverter is reported in [29], where the lower order nontriplen harmonics are eliminated by using Fourier-based equations on line-to-line basis as conventional SHE technology to express the control signals of three legs. In addition, two methods that mitigate the load neutral point voltage (LNPV) for three-phase four-leg inverters are analyzed, which are based on the PWM strategy and the common mode filter, respectively [30]. Moreover, a decoupled sequence control strategy, employing positive sequence, negative sequence, and zero sequence controllers is studied in [31].However, the available publications on three-phase four-leg inverters are limited to eightinsulated-gate bipolar transistors (IGBTs) topologies, as illustrated in Figure 1a. In mega-watt level applications, the IGBT with a rated current of thousands of ampere is not cost-effective and is not suitable for some cost-sensitive situations.

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Vibration modal analysis and calculation of a new HVDC converter transformer with inductive filtering method

Chen

Peng

et al. 2015

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

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Magnetic Vibration Analysis of a New DC-Excited Multitoothed Switched Reluctance Machine

Cited by 19 publications

References 13 publications

Two‐phase switched reluctance motor with hybrid excitation: Modeling and evaluation

Two‐phase switched reluctance motor with hybrid excitation: Modeling and evaluation

Design and Evaluation of an Efficient Three-Phase Four-Leg Voltage Source Inverter with Reduced IGBTs

Vibration modal analysis and calculation of a new HVDC converter transformer with inductive filtering method

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