Advanced Electric Power Conversion Laboratory

Name: Minfan Fu


School of Info. Science and Tech.

ShanghaiTech University

Room 202C, SIST Building 2

393 Middle Huaxia Road

Pudong, Shanghai 201210

Tel: +86-021-20684455

Rong He gives a talk on the seminar of CAPES

This month's seminar of the Center for Advanced Power and Energy Systems (CAPES) was held on September 17, 2019. It is a monthly event for the students of CAPES to share their researches. On this seminar, Ms. Rong He from AEPCL gave a talk titled as "High-Order Compensation Network for Inductive Power Transfer Systems".



The Inductive Power Transfer (IPT) system depends on coupling coils to transfer power from the transmitter to the receiver. Due to the large distance, leakage flux is larger than traditional transformer and coupling coefficient is small. That contributes to poor power transfer ability. At that time, compensation network is used to decrease the reactive power and increase the power transfer ability and efficiency. However, most compensation networks cannot satisfy different objectives simultaneously because of the limited design freedom. High-order compensation provides more design freedom for inductive power transfer system, and can help improve output voltage/current controllability. This talk will firstly introduce the development of wireless power transfer and the characteristics of four different technology, and then it will focus on IPT system and its compensation network. It proposes a novel perspective to simplify the decomposition and synthesis for high order compensation IPT system. Proposed topology can achieve load-independent output under coupling variation, and easily fulfill the various charging requirements, such as constant voltage or constant current. Meanwhile, the proposed method dramatically simplifies the evaluation for the influence of the coil equivalent series resistors on the transfer function and efficiency.

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