Open AccessElectric vehicle wireless charging system transmission model based on two-port network
Author(s) -
Yuhao Luo,
Zhenyang Li,
Sizhong Wang,
Yan Li
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2187/1/012069
Subject(s) - wireless , electric vehicle , chassis , transmission (telecommunications) , inductance , maximization , computer science , wireless network , port (circuit theory) , electrical engineering , automotive engineering , engineering , mathematical optimization , voltage , telecommunications , mathematics , power (physics) , physics , structural engineering , quantum mechanics
In recent years, the use of electric vehicles has been promoted all over the world in order to reduce the dependence on non-renewable resources such as oil. However, the problems of slow charging and few charging piles of electric vehicles have always troubled the users. In order to solve this problem, this paper investigates the wireless charging problem of electric vehicles. This paper focuses on the relationship between the transmission efficiency of the wireless charging system and the transmitting frequency and matching impedance of the non-vehicle part. First, this paper converts the equivalent circuit of wireless charging system into a two-port network diagram, establishes the relationship between the output signals, and performs simulation calculations for ten sets of experiments. Then, considering the different chassis heights of different models, the relationship between coil distance and mutual inductance coefficient is focused on. Finally, a single-objective optimization model with the maximization of transmission efficiency as the objective function is established considering the economy, and the model is solved by multiverse optimization algorithm, and the transmission efficiency is successfully improved to 93.10%.