The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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DQ Synchronous Reference Frame Model of a Series-Parallel Tuned Inductive Power Transfer System

직렬-병렬 공진 무선전력전송 시스템의 동기 좌표계 모델

  • Noh, Eun-Chong (Dept. of Electrical Computer Engineering, University of Seoul) ;
  • Lee, Sang-Min (Dept. of Electrical Computer Engineering, University of Seoul) ;
  • Lee, Seung-Hwan (Dept. of Electrical Computer Engineering, University of Seoul)
  • Received : 2020.05.06
  • Accepted : 2020.07.24
  • Published : 2020.12.20
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Abstract

This study proposes a DQ synchronous reference frame model of a series-parallel tuned inductive power transfer (SP-IPT) system. The wireless power transmission system experiences control difficulty because the transmitter-side controller cannot directly measure the receiver-side load voltages and currents. Therefore, a control-oriented circuit model that shows the dynamics of the IPT system is required to achieve a well-behaved controller. In this study, an equivalent circuit model of the SP-IPT system in a synchronously rotating reference frame is proposed using the single-phase DQ transformation technique. The proposed circuit model is helpful in modeling the dynamics of the voltages and currents of the transmitter- and receiver-side resonant tanks and loads. The proposed circuit model is evaluated using frequency- and time-domain simulation results.

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Acknowledgement

이 논문은 2019년도 서울시립대학교 교내 학술연구비에 의하여 지원되었음.

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