Researching | Remanent magnetic energy recovery method for air-core pulse alternator

High Power Laser and Particle Beams, Volume. 35, Issue 11, 115001(2023)

Remanent magnetic energy recovery method for air-core pulse alternator

Peng Zhang, Haitao Li^*, Changyong Hu, and Lingshuo Kong

Author Affiliations

School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255020, Shandong

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Figures&Tables (15)

References (17)

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Figures & Tables(15)

Fig. 1. Traditional pulse alternator topology

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Fig. 2. Pulse alternator with excitation energy recovery

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Fig. 3. Excitation energy recovery circuit

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Fig. 4. Working process of excitation energy recovery circuit

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Fig. 5. 2D model of pulse alternator

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Fig. 6. Excitation current waveform

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Fig. 7. Heat generation of field winding

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Fig. 8. Pulse capacitance voltage

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Fig. 9. Temperature distribution of pulse alternator

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Fig. 10. Temperature curve of pulse alternator

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Fig. 11. Experimental circuit

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Fig. 12. Experimental results

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Table 1. Simulation parameters of pulse alternator

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Table 1. Simulation parameters of pulse alternator

number of pole pairs	number of phases	rotor speed/ (r·min⁻¹)	rotor outer diameter/mm	stator outer diameter/mm	moment of inertia/(kg·m²)	field winding inductance/mH	field winding resistance/mΩ	capacitance of capacitor/mF	initial excitation voltage/V
2	4	12000	540	760	30	4.2	90	3	1000

Table 2. Circuit performance indices
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Table 2. Circuit performance indices
circuit mode freewheeling time/ms winding heat/MJ winding temperature/℃
traditional circuit ＞20 ＞0.16 38.6
energy recovery circuit 6 0.11 34.9

Table 3. Parameters of experimental circuit

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Table 3. Parameters of experimental circuit

capacitance of capacitor/µF	voltage of capacitor/V	inductance of regulating winding/µH	resistance of regulating winding/mΩ	inductance of field winding/mH	resistance of field winding/mΩ
100	400	180	20	1.5	320

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Peng Zhang, Haitao Li, Changyong Hu, Lingshuo Kong. Remanent magnetic energy recovery method for air-core pulse alternator[J]. High Power Laser and Particle Beams, 2023, 35(11): 115001

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Paper Information

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Received: May. 11, 2023

Accepted: Aug. 25, 2023

Published Online: Dec. 26, 2023

The Author Email: Li Haitao (lihaitao840812@163.com)

DOI:10.11884/HPLPB202335.230124

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology