Electric vehicle charging pile current automatic adjusting system and method

Abstract

The invention discloses an electric vehicle charging pile current automatic adjusting system and method. The system comprises an AC input circuit and a control circuit. The control circuit is used for adjusting the real-time output power according to the rated output power of the transformer and the real-time required power of the load end so as to ensure that the transformer works in a rated power range; the control circuit comprises an adjusting module; a dynamic monitoring module; the adjusting module is used for performing current-limiting adjustment on the real-time output power according to the rated output power of the transformer; the dynamic monitoring module is used for monitoring current and voltage parameters, real-time power values and power factor values of a plurality of channels and storing important parameters; the adjusting module comprises a dynamic compensation unit; the dynamic compensation unit is used for dynamically compensating the power output to the plurality of loads according to the real-time power demand condition; a method is also disclosed. According to the invention, the rationality of the load on the inner side of the transformer is ensured, and the charging requirement of the load is met.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to a system and method for automatically adjusting the current of an electric vehicle charging pile. Background technique [0002] As an important means to solve transportation, energy and environmental problems, electric vehicle (Electric Vehicle, EV) is the direction of the future development of the automobile industry, and it is also one of the key strategic industries in my country. With the adjustment of the national energy strategy, the energy transformation and comprehensive social benefits brought about by the coordinated development of the electric vehicle industry and the new energy industry have been fully affirmed and highly valued. In order to ensure the safe and economical operation of large-scale electric vehicles connected to the power grid, the future power grid structure and operation mode will also undergo profound changes. The development of cha...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the charging piles in the existing community cannot meet the short-term, high power and uncertain charging needs, a system and method for automatic adjustment of electric vehicle charging pile current are proposed. By setting a dynamic monitoring module; the current and voltage of multiple channels Parameters, real-time power value and power factor value to monitor and save important parameters, set the adjustment module, and adjust the real-time output power according to the rated output power of the transformer, so as to ensure that the load inside the transformer is reasonable and the power grid is not overloaded. Ensure charging needs are met

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