Development and Analysis of a New Hybrid Excitation Brushless DC Generator With Flux Modulation Effect

Sun, Linnan; Zhang, Zhuoran; Yu, Liangyao; Gu, Xiangpei

doi:10.1109/tie.2018.2864701

Cited by 32 publications

(9 citation statements)

References 25 publications

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“…rough reading the above references, the author found that combined PMGs have strong magnetization ability and high air gap magnetic density [22,[26][27][28]. In addition, the brushless EEGs have good air gap field adjustment ability and high reliability [29][30][31]. Based on the advantages of the above two kinds of generators, this paper proposes a new type of parallel magnetic circuit hybrid excitation generator (PMCHEG).…”

Section: Introductionmentioning

confidence: 97%

Electromagnetic Design and Flux Regulation Analysis of New Hybrid Excitation Generator for Electric Vehicle Range Extender

Zhang

Geng

et al. 2021

Journal of Electrical and Computer Engineering

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Aiming at the problem of uncontrollable magnetic field of permanent magnet generators, a new hybrid excitation generator (HEG) with parallel magnetic circuit is proposed. The HEG consists of combined permanent magnet rotor (PMR) and brushless electric excitation rotor (EER). The PMR has surface-mounted and embedded magnets. The PMR provides the main air gap field, and the brushless EER is used to adjust the air gap field. The operating principle and electromagnetic design scheme of the proposed generator are given in detail. Besides, the matching with two different types of rotors and the flux regulation characteristics is analyzed by using the finite element method. Finally, the output performance of the proposed generator including no-load and load characteristics and output voltage are tested. The results show that the two different types of rotors can be matched efficiently and operated reliably. The internal magnetic flux is easy to adjust in both directions, and the proposed HEG can output stable voltage in the range of wide speed and load.

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Section: Introductionmentioning

confidence: 97%

Electromagnetic Design and Flux Regulation Analysis of New Hybrid Excitation Generator for Electric Vehicle Range Extender

Zhang

Geng

et al. 2021

Journal of Electrical and Computer Engineering

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“…Apart from inheriting the stator-PM doubly salient machines (PMDSMs) with merits of simple structure, the absence of retaining sleeve and excellent rotor thermal dissipation, a certain flux-regulation capability of hybrid excitation doubly salient machines (HEDSMs) can be achieved to improve the flux-weakening capability, resulting in improved efficiency over a wide speed range [5]- [8]. However, PMs still exist, and an irreversible demagnetization risk also exists in the HEDSMs and PMDSMs, resulting in restricted fields of application for the HEDSMs and PMDSMs.…”

Section: Introductionmentioning

confidence: 99%

Comparative Research on Four-Phase Dual Armature-Winding Wound-Field Doubly Salient Generator With Distributed Field Magnetomotive Forces for High-Reliability Application

Zhao

Teng

et al. 2021

IEEE Access

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In this article, a four-phase dual armature-winding wound-field doubly salient machine with distributed field magnetomotive forces (DAW-WFDSM-DF) and corresponding double-redundant rectifier circuit are proposed to improve the electromagnetic performance of the traditional WFDSM in terms of the output voltage ripple, fault-tolerant capability and output capability. Firstly, due to the uniformly distributed field magnetomotive forces of the proposed machine, the more feasible stator/rotor pole combinations of the four-phase machine can be obtained and the influence of stator/rotor-pole combination on electromagnetic performance is investigated, especially for the fault-tolerant capability. Based on a multi-objective evaluation function including output capability, fault-tolerant capability and unbalanced magnetic forces, the 4N-stator-pole/3N-rotor-pole (4N /3N) and 4N /5N combinations are recommended. Then, considering that the fault-tolerant capability of 8/6-pole machine is poorer than that of 12/9-pole one, the 12/9-pole and 8/10-pole DAW-WFDSM-DFs are comparatively researched for taking as the representatives of 4N /3N and 4N /5N , including no-load and on-load characteristics and fault-tolerance performance under single winding open-circuit condition. Finally, as the 8/10-pole DAW-WFDSM-DF exhibits remarkably higher efficiency and stronger fault-tolerant capability than the 12/9-pole one, an 8/10-pole prototype is manufactured and tested to verify the analytical results. INDEX TERMS Fault-tolerant capability, stator/rotor pole combination, dual armature-winding, wound field doubly salient generator, distributed field magnetomotive forces, electromagnetic performance.

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“…However, the flux-regulation capability is not excellent enough, which limits its driving applications with wide speedregulation requirement. As a result, in order to improve the flux-regulation performance of the AFFSPM machine, some hybrid excitation [16]- [20] topologies, demonstrated…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Torque Control of a Hybrid Excited Axial Field Flux-Switching Permanent Magnet Machine

2020

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Hybrid excited axial field flux-switching permanent magnet (HEAFFSPM) machine is a novel stator excitation hybrid excited synchronous machine, which combines the advantages of the axial field flux-switching permanent magnet machine and wound field machine. In this paper, two model predictive torque control (MPTC) methods with flux-adjusting strategy implementation for the HEAFFSPM machine, including the MPTC and MPTC with duty cycle control (MPTC-DCC) by optimizing the active voltage vector duration to reduce the torque and flux ripples, are proposed and comparatively investigated. Based on the theoretical analysis, a discrete-time model of the HEAFFSPM machine is established. Considering the flux-enhancing/-weakening strategies, the different multi-objective cost functions are designed. The multiple right weight coefficients are analyzed and chosen to optimize the operating performance of the drive system. The results indicate that the proposed MPTC-DCC method reduces the torque and flux ripples significantly compared with MPTC method, and the drive system has better steady performance. Meanwhile, the load capability in the whole speed region is improved and the constant power operating range is broadened by using the proposed flux-adjusting strategy. INDEX TERMS Axial field, flux-switching, flux-adjusting, model predictive torque control, duty cycle control.

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Development and Analysis of a New Hybrid Excitation Brushless DC Generator With Flux Modulation Effect

Cited by 32 publications

References 25 publications

Electromagnetic Design and Flux Regulation Analysis of New Hybrid Excitation Generator for Electric Vehicle Range Extender

Electromagnetic Design and Flux Regulation Analysis of New Hybrid Excitation Generator for Electric Vehicle Range Extender

Comparative Research on Four-Phase Dual Armature-Winding Wound-Field Doubly Salient Generator With Distributed Field Magnetomotive Forces for High-Reliability Application

Model Predictive Torque Control of a Hybrid Excited Axial Field Flux-Switching Permanent Magnet Machine

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