A medium and high voltage integrated vehicle charging system based on series digital voltage regulator
A car charging and voltage stabilizer technology, applied in electric vehicle charging technology, charging stations, electric vehicles, etc., can solve the problems of unfavorable normal operation of electrical equipment, increase system loss, and long implementation time, so as to improve operating efficiency and stability performance, reduction in number and switching frequency, and reduction in filtering cost
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[0020] Hereinafter, the specific embodiments of the present invention will be further described with reference to the accompanying drawings.
[0021] The structure of the automobile charging system applied by the present invention is as follows: figure 1 As shown, it is divided into three-level structure. The input stage converts 10kV alternating current to high voltage direct current; the intermediate isolation stage converts high voltage direct current to low voltage direct current, and has the function of electrical isolation; the output stage is the charging pile module, which changes the level of direct current to charge the car.
[0022] figure 2 For the specific topology of the digital voltage regulator, it is composed of H-bridge topology with different DC side voltages. The circuit topology of the medium and high voltage integrated vehicle charging system based on the series digital voltage regulator is as follows: image 3 As shown, its structure includes a grid-...
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