TY - JOUR
T1 - Analysis and Design of a Multi‐Resonant Circuit for Applications of Wireless Capacitive Power Transmission
AU - Estevez‐encarnacion, Eduardo Salvador
AU - Hernandez‐gonzalez, Leobardo
AU - Sanchez‐garcia, Juan C.
AU - Ramirez‐hernandez, Jazmin
AU - Cortes, Domingo
AU - Ponce‐silva, Mario
AU - Juarez‐sandoval, Oswaldo Ulises
N1 - Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - Capacitive technology for wireless power transmission has been shown to be a good op-tion 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, realis-tic 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 effi-ciency.
AB - Capacitive technology for wireless power transmission has been shown to be a good op-tion 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, realis-tic 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 effi-ciency.
KW - CPT
KW - LCLC circuit
KW - multi‐resonant circuits
UR - http://www.scopus.com/inward/record.url?scp=85127108900&partnerID=8YFLogxK
U2 - 10.3390/en15062252
DO - 10.3390/en15062252
M3 - Artículo
AN - SCOPUS:85127108900
SN - 1996-1073
VL - 15
JO - Energies
JF - Energies
IS - 6
M1 - 2252
ER -