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

Hu, Wenrong; Zhang, Xueyi; Geng, Huihui; Gao, Ting; Shi, Liwei; You, Di

doi:10.1155/2021/5547517

Cited by 8 publications

(5 citation statements)

References 33 publications

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“…In summary, many scholars have conducted in-depth research on the mechanisms and principles of HEGs, which provides valuable references for their development [18][19][20][21]. On this basis, first, a novel kind of HEG with a claw-pole series magnetic circuit for a vehicle is proposed in this paper; the magnetic circuit was analyzed and the main parameters of the HEG were determined.…”

Section: Introductionmentioning

confidence: 99%

The Design and Optimization of a Novel Hybrid Excitation Generator for Vehicles

Ma,

Gu,

Wang

et al. 2024

WEVJ

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Silicon rectifier generators, which are single-excitation generators, are commonly used in vehicles. However, a traditional single-excitation generator cannot satisfy the requirements of modern vehicles due to its low efficiency, high failure rate and large excitation loss; a hybrid excitation generator is more suitable for a wide range of applications in vehicles because of its many advantages. In this study, a novel, high-efficiency and energy-saving hybrid excitation generator with a claw-pole series magnetic circuit for vehicles was designed. The magnetic circuit and principle of operation were analyzed. The structure parameters of the hybrid excitation generator were initially designed according to motor design theory. The model of the hybrid excitation generator was built based on the finite element method, and the no-load characteristic was analyzed. Furthermore, the influences of the permanent magnet thickness and core slot width on the performance of the generator were analyzed. According to the results, the structural parameters were optimized. The no-load output characteristics and load characteristics were compared between the generator and a silicon rectifier generator, and the test results show that the design, simulation and optimization methods were reasonable. This provides theoretical support and research methods for the development of a hybrid excitation generator.

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Section: Introductionmentioning

confidence: 99%

The Design and Optimization of a Novel Hybrid Excitation Generator for Vehicles

Ma,

Gu,

Wang

et al. 2024

WEVJ

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“…A permanent magnet generator is often used in range extenders both at home and abroad, and the power density of the axial flux permanent magnet motor is higher than that of the radial flux permanent magnet motor. The rotor is typically replaced with a permanent magnet to reduce the motor volume and improve the power density [7].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Field Analysis and Development of Disk Axial–Radial Hybrid Excitation Generator for Range Extenders in Extended-Range Electric Vehicles

2024

WEVJ

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Extended-range electric vehicles have both a motor and an engine; the motor is used for driving, and the engine generates electricity via a range extender, which is connected to the motor. The permanent magnet generator is part of the range extender, and the output voltage is controlled by adjusting the engine’s speed; the generator’s rotating speed fluctuates, meaning that the engine’s fuel consumption increases. Meanwhile, considering the limited axial dimension of the range extender, an axial–radial disk hybrid generator that combines excitation is developed, making full use of the radial space; at the same time, the output voltage is adjusted without changing the engine’s speed. In this study, the generator’s magnetic field hybrid principle, the path of permanent magnetic circuit, and the electric excitation magnetic circuit under different loads were analyzed and verified via the finite element method. A comparative analysis method was also used, the technical index of the disk hybrid excitation generator was determined, and the main structural parameters were designed using theoretical calculations. The three-dimensional finite element model was established based on the results, and a finite element analysis was performed. An equivalent magnetic circuit model was established, and the formulas of synthetic permeability, leakage permeability, and effective permeability were determined. The finite element method (numerical method) and equivalent magnetic circuit method (analytical method) were used to calculate the synthetic magnetic fields of the air gap, rotor yoke, and rotor teeth under different excitation currents. A comparison between the two methods verified the design utility. The conclusions provide a valuable point of reference for the development of the disk hybrid excitation generator for use in range extenders in extended-range electric vehicles.

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“…Consequently, flux loss is minimized and the major part of the electromagnetic field is passed through the coil cross-section. Utilizing the magnetic core, the magnetic field path is corrected and the output power density is maximized [18]- [20].…”

Section: Introductionmentioning

confidence: 99%

Novel Structure for Electromagnetic Micro-Power Harvester

Bahar

Bahrami

Sharifian

2022

Engineering Science & Technology

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Energy harvester could supply electronic devices such as implantable biomedical systems. Among the different methods of energy harvesting, the mechanical approach with the electromagnetic transduction method converts mechanical vibrations into output electrical power. In this research, an electromagnetic micro-generator is designed. The proposed device consists of a spring and a planar coil, designed using the Micro-electromechanical Systems (MEMS) technology, and also, a magnet and magnetic core. Different configurations are proposed to optimize the output power of the micro-generator. An innovative structure for the magnetic core is used to maximize the output power. The results show that the output power is increased up to 1.0344 μW and the power density is 2.94 μW/cm3. The attained output power is higher than that reported in the literature. The proposed energy harvester is a suitable replacement for limited lifetime supplies.

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

Cited by 8 publications

References 33 publications

The Design and Optimization of a Novel Hybrid Excitation Generator for Vehicles

The Design and Optimization of a Novel Hybrid Excitation Generator for Vehicles

Magnetic Field Analysis and Development of Disk Axial–Radial Hybrid Excitation Generator for Range Extenders in Extended-Range Electric Vehicles

Novel Structure for Electromagnetic Micro-Power Harvester

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