Diversified electric storage charging pile

Abstract

The invention relates to a diversified electric storage charging pile, which includes a flow cell stack, an inverter, and a flow battery electrolyte circulating pipeline flowing through the inverter;The circulating process of the electrolyte in the liquid flow battery flows through the converter to effectively cool the converter without extra work, and the waste heat generated in the operation ofthe converter can preheat the electrolyte to improve the operation efficiency of the battery, and the synergistic and complementary operation of the converter and the liquid flow battery can be realized without extra work. At that same time, the whole char device can play the role of peak shaving of the pow network at night or when the power network is idle, thereby reducing the charging cost; Itcan also be directly charged by renewable energy with intermittent and volatile problems such as solar energy and wind energy to reduce the difficulty of grid connection of renewable energy. At the same time, it can directly replace the charged electrolyte to complete the rapid charging process, and the charging mode is more diversified and free.

Description

Technical field [0001] The invention relates to a charging device, in particular to a diversified electric storage charging pile. Background technique [0002] With the continuous development of new energy utilization technologies, new energy vehicles have ushered in great development in the world, especially in China. With the dual support of technology and policies, my country's new energy vehicles, especially pure electric vehicles, have continued to grow at an annual growth rate of nearly 300,000. The emergence of a large number of pure electric vehicles means that my country’s demand for charging piles and charging stations is increasing. At present, the ratio of domestic charging facilities to new energy vehicles is maintained at about 1:4, which is very different from the standardized 1:1 far. [0003] At present, charging piles on the market mainly appear as power conversion devices, and their structure is relatively simple, mainly composed of input, output and control. Ac...

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Problems solved by technology

[0005] However, the energy efficiency of the flow battery is relatively low during the cycle. Experiments have proved that an appropriate increase in temperature can improve the working efficiency of the battery. At the same time, the heat dissipation technology of the charging pile has always affected the efficient, stable and long-term operation of the charging device.

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