Optimal planning method for charging pile system with nested microgrid

Abstract

The invention discloses a charging pile structure with a nested microgrid and an optimization planning method thereof. The system includes at least one nested low-voltage microgrid, and the nested low-voltage microgrid includes a low-voltage bus and several charging piles. The plurality of charging piles are connected to the low-voltage busbar through a power electronic interface; the low-voltage busbar is electrically connected to an AC busbar, and the AC busbar is connected to a medium-voltage busbar through a transformer; the medium-voltage busbar is connected through a power electronic interface. Connect to several charging piles. The invention combines the annual power resources and actual load data, adopts the long-process power sampling technology, and analyzes the charging pile configuration and energy storage configuration of the new smart microgrid, so as to realize the optimized configuration of the high power capacity of the charging pile.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to a charging pile structure with a nested microgrid and an optimization planning method thereof. Background technique [0002] In keeping with the development of the times, the Chinese government has developed the electric vehicle industry unconventionally and vigorously, which has led to the vigorous rise of new energy electric vehicle charging pile projects, and electric vehicle charging stations have emerged in various parts of the country. The charging pile is a power station for electric vehicles, and its function is similar to the fuel dispenser in the gas station. With the hot sale of electric vehicles, the number of charging piles is obviously insufficient. Many public places and public parking lots need to build a large number of charging piles. However, since the current electric vehicle charging piles are not considered within the scope of building elec...

AI Technical Summary

Problems solved by technology

With the hot sales of electric vehicles, the number of charging piles is obviously insufficient. Many public places and public parking lots need to build a large number of charging piles. In terms of construction, since the construction capacity of charging piles is not considered, the construction land and capacity of the future large power grid will be tight, and the investment cost will increase sharply.

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