Optimal Efficiency and Power Control of High Efficient Wireless Power Transfer System
The paper discusses with optimal strategy of efficiency and power control for wireless power transfer systems. The proposed method is based on exact setting of phase shift angle between the primary and the secondary voltages. The paper further summarizes fundamental mathematical description and includes supporting simulation results. The possibilities of proposed control and implementation in DSP are briefly described. All theoretical assumptions are verified by laboratory measurement on experimental prototype of WPT system.
KeywordsWireless Power Transfer Efficiency Control Measurement Prototype Simulation
- 3.Ning, P, Miller, J.M., Onar, O.C., White, C.P., Marlino, L.D.: A compact wireless charging system development. In: Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 3045–3050 (2013)Google Scholar
- 6.Moon, S., Kim, B.C., Cho, S.Y., Moon, G.W.: Analysis and design of wireless power transfer system with an intermediate coil for high efficiency. In: IEEE ECCE Asia Downunder, no. 13712127, pp. 1034–1040 (2013). doi:10.1109/ECCE-Asia.2013.6579235
- 8.Rabkowski, J., Peftitsis, D., Nee, H.P.: Design steps towards a 40-kVA SiC inverter with an efficiency exceeding 99.5%. In: Applied Power Electronics Conference and Exposition, no. 12578259, pp. 1536–1543. (2012). doi: 10.1109/APEC.2012.6166024
- 9.Piri, M., Jaros, V., Frivaldsky, M: Verification of a mutual inductance calculation between two helical coils. In: 16th International Scientific Conference on Electric Power Engineering (EPE), pp. 712–717 (2015). doi:10.1109/EPE.2015.7161143