Abstract
Pulsed alternator concentrates the functions of inertial energy storage, energy conversion and power conditioning, which can output the mechanical energy stored in the rotor in the form of high-energy pulse current. It is an ideal power source for driving electromagnetic weapons such as electromagnetic rail gun and coil gun. The design and performance analysis of an air-core pulsed alternator were completed by combining analytical calculation and finite element simulation. A 3D finite element electromagnetic field model close to reality was established, and the working process of self-excitation and discharge was simulated. Finite element simulation models suitable for electromagnetic field-temperature field and electromagnetic field-stress field were established in Ansys Workbench respectively, and the maximum temperature rise of the alternator in each round was calculated, which provided a basis for formulating the working strategy and temperature rise management of the alternator under natural cooling conditions. The stress of each rotor component during the no-load stage and discharge stage of the alternator was simulated and analyzed, and the failure of carbon fiber composite material was evaluated with special processing module.
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Wang, S., Wu, S., Wu, S., Zhang, W. (2023). Design and Simulation of 4MJ Air-Core Pulsed Alternator. In: **e, K., Hu, J., Yang, Q., Li, J. (eds) The Proceedings of the 17th Annual Conference of China Electrotechnical Society. ACCES 2022. Lecture Notes in Electrical Engineering, vol 1014. Springer, Singapore. https://doi.org/10.1007/978-981-99-0408-2_82
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DOI: https://doi.org/10.1007/978-981-99-0408-2_82
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