Flux-Switching Machine With DC Excitation

Tang, Yang; Paulides, Jjh Johannes; Motoasca, Emilia; Lomonova, E. A.

doi:10.1109/tmag.2012.2199100

Cited by 114 publications

(70 citation statements)

References 10 publications

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“…To accelerate a vehicle with a given mass in a given time from zero to a given speed, the required machine power to achieve this is inversely proportional to the speed ratio of the system [1], [2]. Continuously variable transmissions [3], [4], axial flux machine types [5], [6], or (extreme) field weakening [7]- [9] are the respective main solutions that are currently available to achieve the wide-speed operating range required for traction.…”

Section: Introductionmentioning

confidence: 99%

“…Each of these solutions has advantages and disadvantages, but none of them is a sole solution for electrical vehicle propulsion, hence combinations are mandatory. Therefore, by increasing the ratio between the base speed and the top speed of the electrical machine (EM), the power consumption can be reduced [1], [2]. The acceleration time of a vehicle can furthermore be minimized if transitions between drive-line configurations can be avoided or executed without interrupting the torque [10].…”

Section: Introductionmentioning

confidence: 99%

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Twelve-phase open-winding SPMSM development for speed dependent reconfigurable traction drive

Gerrits

Duarte

Wijnands

et al. 2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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Abstract-Commercially available electrical machines are generally not optimized for a broad operating range, as required in e.g. vehicle traction applications. The required mechanical angular velocity of the wheels for electrical vehicle propulsion is relatively low (around 1,000 rpm), while the torque demand is high (around 500 Nm). This combination requires an adequate solution in the mechanical, electromechanical or electrical domain. No cheap, reliable, lightweight and efficient solution has been invented yet. This paper presents an operation method for a dynamic electric vehicle propulsion system using variable torque/speed characteristics. With this method, the speed range of an electrical machine can be extended. The twelve-phase open-winding surface permanent magnet synchronous machine presented in this paper is developed to verify the different dynamic drive operation modes in practice.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Twelve-phase open-winding SPMSM development for speed dependent reconfigurable traction drive

Gerrits

Duarte

Wijnands

et al. 2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

Self Cite

View full text Add to dashboard Cite

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“…1(a). It combines the advantages of switched reluctance machines (SRMs) and synchronous machines (SMs), which allows a robust rotor structure while preserving a reasonable torque density [3]. Furthermore, in DCEFSMs, the field weakening can be directly performed by reducing the field current, leading to an extendable speed range and an improved efficiency in the high-speed region with a constant power.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, in DCEFSMs, the field weakening can be directly performed by reducing the field current, leading to an extendable speed range and an improved efficiency in the high-speed region with a constant power. Therefore, they are a strong candidate for applications where high ruggedness with a wide constant power speed range is required [3].…”

Section: Introductionmentioning

confidence: 99%

Energy Conversion in DC Excited Flux-Switching Machines

2014

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This paper initiates a study on energy conversion in dc excited flux-switching machines (DCEFSMs) to reveal the torque production mechanism of this type of machines. The flux linkage components and self-and mutual inductances of a single-phase two-rotor-tooth DCEFSM are investigated. Based on the understanding of the relation between these variables and the rotor position, two different switching strategies are implemented to the armature current of this machine. Current-flux linkage loops are sketched for each switching strategy, resulting in different torque expressions. These torque expressions, validated using finite element analysis, show that the DCEFSM is a reluctance machine in which torque is generated due to variation of self-and mutual inductances. In addition, the torque component related to the mutual inductance can be dominant with certain current commutation in the armature winding.

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“…In order to reduce the cost, one of the possible solutions is to replace the PM by FEC. For this reason, some wound field SFMs are proposed for low cost applications [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Design and Characteristic Investigations of 12Slot-8Pole and 12Slot-10Pole Wound Field Three-Phase Switched-Flux Machines

Khan¹,

Sulaiman²,

Omar³

2014

3rd IET International Conference on Clean Energy and Technology (CEAT) 2014

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In this paper, a new wound field salient rotor (WFSalR) switched-flux machine (SFM) with 12 stator poles and 10 rotor poles is designed, investigated, and compared with the same stator but 8 rotor poles WFSalR SFM. The main advantage of these SFMs when compared with induction machines, direct current (DC) machines etc is that, all the active parts such that armature coil and field excitation coil (FEC) are located on the stator while the rotor part consists of only single piece iron. This makes the machine more robust, simple structure and more suitable to be used for high speed applications. Concentrated windings at the stator reduce the copper consumption and also the copper losses. Initially, the general construction of WFSalR SFMs and design specifications are outlined. Then, finite element analysis (FEA) is used to investigate and compare the flux linkage, induced emf, cogging torque, average torque and torque speed characteristics of proposed WFSalR SFMs.

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Flux-Switching Machine With DC Excitation

Cited by 114 publications

References 10 publications

Twelve-phase open-winding SPMSM development for speed dependent reconfigurable traction drive

Twelve-phase open-winding SPMSM development for speed dependent reconfigurable traction drive

Energy Conversion in DC Excited Flux-Switching Machines

Design and Characteristic Investigations of 12Slot-8Pole and 12Slot-10Pole Wound Field Three-Phase Switched-Flux Machines

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