Design and Analysis of a Novel Brushless Wound Rotor Synchronous Machine

Ali, Qasim; Lipo, T.Α.; Kwon, Byung-il

doi:10.1109/tmag.2015.2440433

Cited by 95 publications

(79 citation statements)

References 6 publications

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“…Meanwhile, the CES is highly reliable. Compared with the traditional brushless excitation method, the CES excludes an exciter and other additional complex devices; the simulation and experimental results verify the design feasibility and prove the proposed method to be a novel thinking for the motor excitation method [9,10,11,12].…”

Section: Introductionmentioning

confidence: 78%

Characteristic analysis of relatively high speed, loosely coupled rotating excitation transformers in HEV and EV drive motor excitation systems

Wang

2017

IEICE Electron. Express

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An inductively coupled power-transfer method is proposed using a new, brushless motor excitation method called contactless excitation system (CES). Uses a loosely coupled rotating excitation transformer (LCRET) and realize the transmission of excitation power, thereby proving to be safer and simpler than traditional excitation systems. The principles and two topologies are introduced. LCRET can achieve excitation-energy transmission when the primary and secondary sides rotate at a relatively high speed. The transient characteristics of the proposed topologies are compared using a finite element analysis to establish an optimal topology and verify the safety and high-efficiency energy transmission of LCRET by conducting tests.

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Section: Introductionmentioning

confidence: 78%

Characteristic analysis of relatively high speed, loosely coupled rotating excitation transformers in HEV and EV drive motor excitation systems

Wang

2017

IEICE Electron. Express

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“…In the BL-WRSM topology of [1], there should be a difference between the current magnitudes in two portions of the stator windings in order to generate a subharmonic to excite the rotor.…”

Section: Flux Weakening Operationmentioning

confidence: 99%

“…In this paper, a hybrid BL-WRSM topology is introduced with a similar stator configuration to that of [1], but the rotor has PMs on it to assist with starting the machine. The rotor with both PMs and windings is a series hybrid rotor, where the flux from the windings passes through the PMs.…”

Section: Introductionmentioning

confidence: 99%

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PM Assisted, Brushless Wound Rotor Synchronous Machine

Ali¹,

Atiq²,

Lipo³

et al. 2016

Journal of Magnetics

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This paper presents a new permanent magnet (PM) assisted topology for a recently introduced brushless wound rotor synchronous machine (BL-WRSM) [1]. The BL-WRSM had a dual-inverter configuration for generating a composite magneto motive force (MMF) with a fundamental component and a subharmonic component. The subharmonic component of the MMF is used for brushless excitation of the rotor. In this paper, additional PMs were introduced on the rotor of the BL-WRSM, making it a hybrid BL-WRSM. We also discussed the flux weakening operation for the hybrid BL-WRSM. The hybrid BL-WRSM offered advantages for starting the machine and provided better performance under full-load conditions. The finite element method (FEM) was used to analyze the performance of the hybrid BL-WRSM, and we compared its performance with BL-WRSM. Finally, prototypes were built with and without the PM-assistance, and experiments were conducted to demonstrate their performance.

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“…Considering these issues with existing WRSMs and PM machines, purely electrically self-excited and brushless three phase synchronous machines have been studied [14][15][16][17]. In these brushless wound-rotor synchronous machines (BL-WRSMs), the synchronous machine itself is used as an excitation, as well as torque-producing device.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design and Experimental Verification of Wound Rotor Synchronous Machine Using Subharmonic Excitation for Brushless Operation

2018

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This paper presents an optimal design of a recently introduced brushless wound-rotor synchronous machine (BL-WRSM). The BL-WRSM, with a special stator winding arrangement, utilizes a single three-phase inverter for generating an additional spatial subharmonic component in the stator magnetomotive force (MMF). This subharmonic component of the stator MMF is used for the brushless excitation of the rotor. The pole span and pole shoe height were the optimized parameters, with the goals of improving the quality of output power and reducing torque ripple. Moreover, the average torque of the machine was improved by optimizing the harmonic winding placed on the rotor. The optimized BL-WRSM was further analyzed for the flux weakening operation. Finite element analysis (FEA) was carried out to analyze the performance of the BL-WRSM. Finally, the performance of the optimal BL-WRSM model was verified through an experimental test, which demonstrated good agreement with the simulation results.

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Design and Analysis of a Novel Brushless Wound Rotor Synchronous Machine

Cited by 95 publications

References 6 publications

Characteristic analysis of relatively high speed, loosely coupled rotating excitation transformers in HEV and EV drive motor excitation systems

Characteristic analysis of relatively high speed, loosely coupled rotating excitation transformers in HEV and EV drive motor excitation systems

PM Assisted, Brushless Wound Rotor Synchronous Machine

Optimal Design and Experimental Verification of Wound Rotor Synchronous Machine Using Subharmonic Excitation for Brushless Operation

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