Method for controlling electric vehicle wireless dynamic charging system

Abstract

The invention discloses a method for controlling electric vehicle wireless dynamic charging system, and belongs to the technical field of electric vehicle wireless charging. The method includes the steps that a transmitter end and a receiver end are controlled simultaneously, sliding mode PID control is adopted to a PFC converter at the transmitter end, and fuzzy algorithm control is conducted over a DC-DC converter at the receiver end, and information exchange is realized through a wireless communication module. According to the method for controlling electric vehicle wireless dynamic charging system, the rational allocation of system resources can be realized, harmonic waves of a power grid is reduced, the power quality is improved, the power loss in the power transmission process is saved, magnetic leakage is reduced, the system transmission efficiency is improved, the stability of electric vehicle dynamic charging is ensured, and safety and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of wireless charging for electric vehicles, in particular to a control method for a wireless dynamic charging system for electric vehicles. Background technique [0002] As problems such as global warming, air pollution, and the decline of petrochemical energy reserves become more and more serious, people begin to seek effective methods that can replace traditional cars and solve environmental pollution and other problems. As a new energy vehicle, electric vehicles have the advantages of low carbon, no pollution, environmental protection and cleanliness, and are an important development direction of new energy vehicles in the future. At present, electric vehicles have problems such as easy to cause battery pollution, poor battery life, and long single charging time. It takes a lot of time during the charging process, and there are certain safety hazards in the charging process. [0003] Electric vehicle wir...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problem that the self-inductance of the guide rail changes and the coupling coil shifts due to the dynamic variability of the position and speed of the vehicle body during the operation of the wireless power supply system of an electric vehicle, which leads to power loss caused by power fluctuations and a decrease in the charging efficiency of the system. The invention proposes a control method for electric vehicle wireless dynamic charging control system with high safety, low magnetic flux leakage, low power loss, and stable performance, which can realize reasonable allocation of system resources, improve system transmission efficiency, and improve product experience, safety and reliability

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