Thesis outline

The research activities during my Ph.D is around the topic " Coil link design in Inductive power transfer system as auxiliary power supply in medium voltage converters" .  Specificaly, my work covers the state of art of auxiliary power supple (APS) for medium voltage (MV) converters, various IPT solutions, and the design of coil link, which includes compensation network design and the coil geometry design in both without or with ferrite scenarios. At the end of my Ph.D,  the systematic design optimization flow and prototype of the IPT system is expected. The planed outline and the progress of my on-going thesis is as follows (with the related publications):

1. Compensation network design as part of coil link design. Several common compensation networks are presented and analyzed, with different performance and characteristics compared. Considering the requirement of constant and independent output
among coil pairs in our application scenario, the compensation network structure is determined, and the component dimensioning rule is introduced. (Publication: https://ieeexplore.ieee.org/document/9254476)

2. Design approach of coil geometry in the condition without ferrite on coil backside based on analytic modeling of coil inductance and resistance. The brute-force search is executed in the coil geometry design space to find optimal coil geometry in perspective of
high efficiency and small coil size. (Publication: https://ieeexplore.ieee.org/document/9627815)

3. Optimization design of coil geometry in the condition with the ferrite on the coil backside. The neural network method is utilized to determine coils’ characteristics with the ferrite on their backside. Based on coil characteristics of different coil geometries, the
Pareto front of designs is searched with the genetic algorithm in coil geometry design space. (on-going work)