Power supply topology structure of electric automobile bidirectional charger

Abstract

The invention relates to a main circuit topology structure of an electric automobile bidirectional charger converter based on a power electronic module, which comprises a bidirectional four-quadrant AC / DC converter module, a bidirectional DC / DC converter module and a control system. The control system comprises two identical general controllers for respectively controlling the converter process of the AC / DC converter module and the DC / DC converter module. The invention enables the converter to have compact hardware structure and greatly improved universality, reliability and modularity degree.

Description

Electric Vehicle Bidirectional Charger Power Supply Topology technical field The invention relates to a power supply topology structure of a bidirectional charger for a high-power electric vehicle, in particular to a main circuit structure of a bidirectional high-power charger for an electric vehicle using a modular converter. Background technique At present, as countries around the world pay more and more attention to vehicle emission control and energy issues, clean, environmentally friendly and energy-saving electric vehicles have become a hot spot in the development of the world's automobile industry. According to my country's national conditions, the development of electric vehicles is imminent. Electric vehicles, as the name suggests, are vehicles that use batteries as all or part of their power source. At present, there are two main aspects that restrict the development of the electric vehicle industry: one is the battery itself, and the other is the charging metho...

AI Technical Summary

Problems solved by technology

In the prior art, the power of the charger is relatively small, and it only charges electric vehicles or batteries in one direction. With the popularization and large-scale application of electric vehicles, electric vehicles can be used as distributed energy storage devices for power grids. Charging electric vehicles and peaking the power grid during the peak power period is the so-called V2G (vtoGrid) concept. V2G technology further puts forward the requirement for the charger to be able to control the two-way flow of electric energy, while the existing one-way low-power None of the chargers can meet this requirement

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