Study and Optimal Design of a Direct-Driven Stator Coreless Axial Flux Permanent Magnet Synchronous Generator with Improved Dynamic Performance
Abstract
:1. Introduction
2. AFPMSG and Dynamic Analytical Model
2.1. AFPMSG
2.2. Dynamic Analytical Model
2.2.1. Dynamic Model of AFPMSG
2.2.2. AFPMSG Swing Equation
2.2.3. Dynamic Analytical Model of AFPMSG
3. Dynamic Performance and Key Factor Analysis
3.1. Dynamic Performance Analysis
3.2. Key Parameter Analysis
3.2.1. Ratio of Main Dimensions
3.2.2. Thickness of the Permanent Magnet
3.2.3. Thickness of Rotor Yoke
3.2.4. Length of the Air Gap
3.2.5. Turns of Coil
4. Integrated Optimization Design
4.1. Optimization Model
4.2. Optimization Design
5. 3D Finite Element Analysis
6. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Parameters | Value | Parameters | Value |
---|---|---|---|
Rated output power | 3 kW | Outer diameter | 0.418 m |
Rated RMS voltage at rated 300 rpm: | 220 V | Out-in diameter ratio: | 1.8 |
Number of phase: | 3 | Magnet thickness: | 15 mm |
Frequency: | 50 Hz | Winding turns per phase: | 434 |
Number of pole pairs: | 10 | Air gap length: | 1 mm |
Pole-arc coefficient: | 0.8 | Rotor yoke thickness: | 10 mm |
Design Variable | Initial Value | Optimal Value |
---|---|---|
Outer diameter: | 418 mm | 420 mm |
Out-in diameter ratio: | 1.8 | 1.75 |
Magnet thickness: | 15 mm | 13 mm |
Winding turns per phase: | 434 | 420 |
Air gap length: | 1 mm | 0.6 mm |
Rotor yoke thickness: | 10 mm | 15 mm |
Axial length: | 62.1 mm | 67.5 mm |
Parameters | Initial Value | Optimal Value | |
---|---|---|---|
Output performance | Rated output power: | 2893 W | 3078 W |
Rated RMS voltage at rated 300 rpm: | 220 V | 237 V | |
Total loss: | 325.8 W | 298.6 W | |
Maximum efficiency: | 0.9 | 0.912 | |
PM material volume: | 0.0024 m3 | 0.002 m3 | |
Dynamic performance | Regulating time: | 1.5 s | 1.9 s |
Maximum voltage overshoot: | 4.45% | 3.37% |
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Wang, W.; Wang, W.; Mi, H.; Mao, L.; Zhang, G.; Liu, H.; Wen, Y. Study and Optimal Design of a Direct-Driven Stator Coreless Axial Flux Permanent Magnet Synchronous Generator with Improved Dynamic Performance. Energies 2018, 11, 3162. https://doi.org/10.3390/en11113162
Wang W, Wang W, Mi H, Mao L, Zhang G, Liu H, Wen Y. Study and Optimal Design of a Direct-Driven Stator Coreless Axial Flux Permanent Magnet Synchronous Generator with Improved Dynamic Performance. Energies. 2018; 11(11):3162. https://doi.org/10.3390/en11113162
Chicago/Turabian StyleWang, Wenqiang, Weijun Wang, Hongju Mi, Longbo Mao, Guoping Zhang, Hua Liu, and Yadong Wen. 2018. "Study and Optimal Design of a Direct-Driven Stator Coreless Axial Flux Permanent Magnet Synchronous Generator with Improved Dynamic Performance" Energies 11, no. 11: 3162. https://doi.org/10.3390/en11113162