Analytical Investigation on Asymmetric LCC Compensation Circuit for Trade-off between High Efficiency and Power

Autor: Kodai Takeda, Takafumi Koseki
Rok vydání: 2018
Předmět:
Zdroj: 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia).
DOI: 10.23919/ipec.2018.8507600
Popis: In a wireless power transfer system, a circuit configuration, where the main coil is connected to capacitors in series and parallel respectively and also connected to an inductor in series, is called LCC compensation. There was a systematic methodology founded for deciding appropriate amount of series compensation in symmetric parameter designed LCC compensation circuit. Although it has multiple resonances in itself, previous researchers did not explain explicitly a mechanism of them and theoretical analysis of efficiency are insufficient. In this paper, the working of resonances is investigated, and a trade-off relation between high efficiency and high output power is analyzed. Based on the analysis, asymmetric parameter design for LCC is proposed. Experimentally, the effect of primary and secondary tuning parameters is revealed, and validity of the proposed design is verified.
Databáze: OpenAIRE