Analysis and Optimal Design of High-Voltage High-Frequency Transformer with Parasitic Elements Consideration for Microwave Power Module

Aghaei, Morteza | 2018

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  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 51516 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Kaboli, Shahriyar
  7. Abstract:
  8. Applications of high voltage power supplies is increasing. Microwave power module is one of the applications. In microwave power module, the dimensions of the power supply are very important. On the other hand, the parasitic elements of the transformer of a high voltage power supply are significant because of high insulation distances and transformer high turn ratio. These elements including stray capacitance and leakage inductance change the converter behavior. In this thesis, a method for dimensional efficient design of high voltage power supply used in microwave power module is presented considering and analyzing the transformer parasitic elements. Beforehand, at first, the transformer model is evaluated and the the conditions of converting the complete model to a second order model are extracted. Then a comprehensive method for calculating the transformer parasitic elements considering winding disorder is presented. Using this method, the effects of transformer parameters on the value of the elements are investigated. After that, different types of resonant converter and their control method investigated and a convenient topology for the application of this thesis is selected. Finally, a comprehensive method to transformer and converter optimization is presented
  9. Keywords:
  10. Microwave Power Module ; Transformer Parasitic Elements ; Leakage Inductance ; Stray Capacitance ; High Voltage Power Supply

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