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Power Electronic Converter Design for Wireless Power Transfer Using for Selective Harmonic

Mahdavifard, Morteza | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49901 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Tahami, Farzad
  7. Abstract:
  8. Wireless power transfer provides many medical applications. Recently, power electronic devices are available with high power transmission capability at higher frequencies. This makes it possible to transfer wireless power with considerable amount of power. Due to the reductions of battery size and cost with using wireless power transfer system, this technology is introduced as one of the most interesting topics among researchers. There are obstacles in front of the progressing wireless power transfer applications. Lateral misalignment, load variations, component uncertainties in value are common in wireless power transfer applications. In order to bring this application in large scales, all of this obstacles must be addressed appropriately. Using higher order harmonics to transfer power, reduces the size of the coils considerably. But in contrary to the first harmonic, fifth harmonic is not dominated in inverter output voltage. Not only the former reason but also component uncertainties in their value impair the functionality of this approach. this thesis investigates a practical approach to tackle these issues. The proposed approach is investigated by simulation and verified by a prototype system. Results show increase in power transfer capability and efficiency of the system with respect to the load variation and coils misalignment
  9. Keywords:
  10. Full-Bridge Converter ; Phase Shift ; Self Oscillating Converter ; Switching ; Wireless power Transfer ; Fifth Harmonic

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