Analysis and Design of a Multi-Resonant Circuit for Applications of Wireless Capacitive Power Transmission

Eduardo Salvador Estevez-Encarnacion, Leobardo Hernandez-Gonzalez, Juan C. Sanchez-Garcia, Jazmin Ramirez-Hernandez, Domingo Cortes, Mario Ponce-Silva and Oswaldo Ulises Juarez-Sandoval
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Eduardo Salvador Estevez-Encarnacion: Escuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Culhuacan, Instituto Politécnico Nacional, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Mexico City 04430, Mexico
Leobardo Hernandez-Gonzalez: Escuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Culhuacan, Instituto Politécnico Nacional, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Mexico City 04430, Mexico
Juan C. Sanchez-Garcia: Escuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Culhuacan, Instituto Politécnico Nacional, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Mexico City 04430, Mexico
Jazmin Ramirez-Hernandez: Escuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Culhuacan, Instituto Politécnico Nacional, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Mexico City 04430, Mexico
Domingo Cortes: Escuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Culhuacan, Instituto Politécnico Nacional, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Mexico City 04430, Mexico
Mario Ponce-Silva: Tecnológico Nacional de México—CENIDET, Interior Internado Palmira s/n, Col. Palmira, Cuernavaca 62490, Mexico
Oswaldo Ulises Juarez-Sandoval: Escuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Culhuacan, Instituto Politécnico Nacional, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Mexico City 04430, Mexico

Energies, 2022, vol. 15, issue 6, 1-19

Abstract: Capacitive technology for wireless power transmission has been shown to be a good option for charging the batteries of electric vehicles. It offers better coupling between the transmitter and the receiver than inductive power transmission. On the other hand, it has some disadvantages; for example, it is very sensitive to the distance between plates. Several ideas have recently been proposed to overcome this disadvantage. However, a proper analysis methodology is still lacking, as is a proper design procedure for the circuits used in capacitive transmission. In this paper, an analysis and design methodology is presented for applying the Z-tank resonant circuit to capacitive power transmission, and the theoretical design methodology is based on normalized equations with respect to the operating resonance frequency. The analysis methodology and design procedure result in a circuit where the resonance frequency remains constant despite changes in the distance between the capacitive plates. The simulation results validate the proposal; to ensure robust, realistic simulation results, parasitic elements were considered in all reactive components, and robust models were built for the switching elements, such as MOSFETs and diodes. The results show that the multi-resonant characteristic of the circuit achieves maximum energy transfer and high efficiency.

Keywords: multi-resonant circuits; CPT; LCLC circuit (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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