Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title DQ Synchronous Reference Frame Model of a Series-Parallel Tuned Inductive Power Transfer System
Authors Eun-Chong Noh ; Sang-Min Lee ; Seung-Hwan Lee
DOI 10.6113/TKPE.2020.25.6.477
Page pp.477-483
ISSN 1229-2214
Keywords Synchronous reference frame; Wireless power transfer system; Dynamics modeling
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.