| 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 |
| 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. |