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Energy storage charging system

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TLDR
In this article, the authors present an energy storage charging system, which includes a bidirectional DC/DC conversion apparatus capable of high-frequency isolation conversion and a direct-current bus bar.
Abstract
Disclosed is an energy storage charging system. The system includes a bidirectional DC/DC conversion apparatus capable of high-frequency isolation conversion and a direct-current bus bar, an AC/DC conversion apparatus capable of high-frequency isolation conversion and a direct-current bus bar, and an electric vehicle charging system. A first connection point of the bidirectional DC/DC apparatus is connected to an energy storage apparatus, a second connection point thereof is connected to the direct-current bus bar, and the bidirectional DC/DC apparatus carries out high-frequency isolation conversion on electric energy of the energy storage apparatus and then carries out bidirectional communication with the direct-current bus bar; and a first connection point of the AC/DC apparatus is connected to a power grid, and a second connection point thereof is connected to the same direct-current bus bar. The energy storage apparatus of the present invention is isolated from the direct-current bus bar by means of a high-frequency isolation transformer of the bidirectional conversion apparatus capable of high-frequency isolation, and electric energy passing through the transformer is adjusted, so that a charging voltage and a charging current of the direct-current bus bar for the energy storage apparatus are adjusted, and a discharging voltage and a discharging current of the energy storage apparatus for the direct-current bus bar are adjusted, thereby achieving the aim of charging an electric vehicle.

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Citations
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Patent

Isolated bidirectional AC/DC converter suitable for V2G behaviors

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TL;DR: In this paper, a centralized energy storage charging pile consisting of two-way or unidirectional DC/DC conversion devices with a high-frequency isolation transformation function and a direct-current bus is revealed.
References
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