Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1997.07a
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- Pages.124-126
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- 1997
Frequency Sensitivity Analysis of Nonsinusoidal Input Voltage in Steady State
정상상태에서의 비정현적 입력전압의 주파수 민감도 해석
- Choi, Myung-Jun (Dept. of Electrical Eng, Soongsil Univ.) ;
- Lee, Se-Hee (Dept. of Electrical Eng, Soongsil Univ.) ;
- Kim, Chang-Hyun (Dept. of Electrical Eng, Soongsil Univ.) ;
- Park, Il-Han (Dept. of Electrical Eng, Soongsil Univ.)
- Published : 1997.07.21
Abstract
A number of electromagnetic devices periodically driven by solid-state switches have been analyzed with time-stepping finite element method, which requires much time to reach a steady state. The sensitivity analysis which have been used for the shape design is employed for an efficient calculation of linear magnetodynamics with nonsinusoidal driving sources. The high-order frequency sensitivity from the harmonic finite element formulation is used along with Fourier transform and Taylor series expansion. The algorithm is validated through a numerical example of a single-phase transformer driven by a trapezoidal voltage source.
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