Wen, ZhongkuiZhongkuiWenWu, QiQiWuYildiz, Ömer FarukÖmer FarukYildizSchuster, ChristianChristianSchuster2020-03-312020-03-312019-06-012019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC: 8893695 499-502 (2019-06-01)http://hdl.handle.net/11420/5562Pitch distances of single coils in multi-coil wireless power transfer systems have a substantial impact on the efficiency. But traditional full factorial (FF) design of experiments is time-consuming due to the large number of measurements in order to describe the efficiency with varying pitch distances. In this paper, polynomial chaos expansion (PCE) is applied to construct a design of experiments and to obtain a surrogate model of the efficiency of a multi-coil system. Instead of large-scale FF, the proposed method reduces the maximum number of necessary measurements by a factor of 6 to 20, while providing accurate information on the efficiency. The agreement between the results of the PCE function and FF design is analyzed in order to validate the method.enFull factorial designMultiple coilsPolynomial chaos expansion (PCE)Wireless power transferConference Paper10.23919/EMCTokyo.2019.8893695Other