Wireless charging device for electric automobile based on photovoltaic power generation

Abstract

The invention discloses a wireless charging device for an electric automobile based on photovoltaic power generation, and the charging device includes three modules: solar power generation, parallel resonance, and power storage. The solar power generation module includes a solar battery array, a charging and discharging control circuit, a storage battery, an inverter module, a voltage and currentcollection module, a processor, a communication module, an MPPT circuit and a motor dragging module. The parallel resonance module includes a half-bridge topology circuit, a transmitting and receivingcoil, a resonant capacitor, a capacitance compensation module and a position adjustment module. The electric energy storage module comprises a charging control circuit, a vehicle storage battery, a temperature acquisition module, and an overvoltage, undervoltage, overtemperature and overcharge protection and vehicle display prompt module. The invention has the beneficial effects that a battery board always maintains the maximum power electric energy transmission and improves the photoelectric conversion efficiency; the transmission area of the transceiver coil is improved to improve the transmission efficiency of the electric energy; the service life of the battery is prolonged, and the equipment reliability is improved; the device is connected with a vehicle display screen, thereby enabling the device to be more humanized and intelligent.

Description

technical field [0001] The invention relates to a wireless charging device for electric vehicles, in particular to a wireless charging device for electric vehicles based on photovoltaic power generation. Background technique [0002] Wireless Power Transmission (WPT), also known as wireless power transmission, non-contact power transmission, is to convert electric energy into other forms of relay energy (such as electromagnetic field energy, laser, microwave and mechanical waves, etc.) After a certain distance is transmitted, the relay energy is converted into electrical energy through the receiver to realize wireless energy transmission. According to the different forms of relay energy in the energy transmission process, wireless energy transmission can be divided into: magnetic (field) coupling, electric (field) coupling, electromagnetic radiation (such as solar radiation), mechanical wave coupling (ultrasound). Among them, the magnetic coupling method is currently (the b...

AI Technical Summary

Problems solved by technology

The power cord is frequently plugged and unplugged, which is not safe and easy to wear

The standards of some chargers, wires, and sockets are not completely uniform, which not only causes waste, but also pollutes the environment. In special occasions, such as mines and oil exploration, traditional power transmission methods have hidden dangers in safety.

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