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Design of a 500-kW electromagnetic propulsion pulse power supply based on hybrid capacitor energy storage
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Bo YANG1, Shuaiqi GONG2, Lei TAN1, Chen WANG3, Yutong WU3
Electronic Components and Materials | 2025, 44(10) : 1220 - 1228
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Electronic Components and Materials | 2025, 44(10): 1220-1228
• Research & Development •
Design of a 500-kW electromagnetic propulsion pulse power supply based on hybrid capacitor energy storage
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Bo YANG1, Shuaiqi GONG2, Lei TAN1, Chen WANG3, Yutong WU3
Affiliations
  • 1State Grid Beijing Electric Power Company, Beijing 100000, China
  • 2Shanghai Electric Power University, Shanghai 200092, China
  • 3Distribution Technology Research Institute, Electric Power Science Research Institute of State Grid Beijing Electric Power Company, Beijing 100000, China
Published: 2025-10-05 doi: 10.14106/j.cnki.1001-2028.2025.0373
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To meet the high demands of 500-kW electromagnetic propulsion systems on pulse power supplies in terms of energy density，conversion efficiency，and output stability，this paper presented a pulse power supply design based on a hybrid energy storage system combining supercapacitors and film capacitors. The power supply employed supercapacitor banks for energy storage and film capacitor banks for instantaneous high-power discharge. An efficient discharge topology ensured stable power transmission to the load module，while a three-level protection mechanism enhanced the safety and reliability of the discharge process. Experimental results indicate that the prototype achieves an energy density of 18.3Wh/kg，and a conversion efficiency of 91.74%. The pulse current overshoot is controlled within 5.00%. All these metrics satisfy the technical requirements of 500-kW class electromagnetic propulsion systems. The proposed pulse power supply effectively addresses issues such as low energy density，poor conversion efficiency，and insufficient load adaptability in existing medium-power electromagnetic propulsion pulse power supplies.

hybrid capacitor energy storage  /  electromagnetic propulsion  /  pulse power supply  /  multi-module parallel discharge topology  /  compound control strategy
Bo YANG, Shuaiqi GONG, Lei TAN, Chen WANG, Yutong WU. Design of a 500-kW electromagnetic propulsion pulse power supply based on hybrid capacitor energy storage[J]. Electronic Components and Materials, 2025 , 44 (10) : 1220 -1228 . DOI: 10.14106/j.cnki.1001-2028.2025.0373
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Article Info
doi: 10.14106/j.cnki.1001-2028.2025.0373
  • Receive Date：2025-09-10
  • Online Date：2026-04-16
  • Published：2025-10-05
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  • Received：2025-09-10
Affiliations
    1State Grid Beijing Electric Power Company, Beijing 100000, China
    2Shanghai Electric Power University, Shanghai 200092, China
    3Distribution Technology Research Institute, Electric Power Science Research Institute of State Grid Beijing Electric Power Company, Beijing 100000, China
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https://castjournals.cast.org.cn/joweb/dzyjycl/EN/10.14106/j.cnki.1001-2028.2025.0373
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