Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (3): 030105 doi: 10.13538/j.1001-8042/nst.26.030105


Magnetic flux leakage analysis and compensation of high-frequency planar insulated core transformer

TIAN Jia-Jia,1, 2 LIU Yong-Hao ,1 LI Rui ,1 LI De-Ming ,1 LU Song-Lin 1   

  1. 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
    2University of Chinese Academy of Sciences, Beijing 100049, China
  • Contact: LI De-Ming
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TIAN Jia-Jia, LIU Yong-Hao, LI Rui, LI De-Ming, LU Song-Lin . Magnetic flux leakage analysis and compensation of high-frequency planar insulated core transformer.Nuclear Science and Techniques, 2015, 26(3): 030105     doi: 10.13538/j.1001-8042/nst.26.030105


A novel high-frequency and high power density planar insulated core transformer (PICT) applied to high voltage direct current (DC) generator is introduced. PICT’s operating principle and fundamental configuration are described, and preliminary experimental results in self-designed PICT apparatus are presented. Emphatically, magnetic leakage flux (MFL) giving rise to the output voltage drop is analyzed in detail both theoretically and by finite element method (FEM). Showing good consistency with experimental result, FEM simulation is considered to be practicable in physical design of PICT. To cancel out leakage inductance and improve the voltage uniformity, compensation capacitor is adopted and experimental verification is also presented. All shows satisfactory results.

Key words: Planar insulated core transformer, Load operation, Magnetic flux leakage, Leakage inductance, Finite element analysis, Flux compensation