MATRIX-TYPE FLEXIBLE CHARGING PILE, AND CHARGING METHOD CAPABLE OF DYNAMICALLY ALLOCATING POWER

摘要

A matrix-type flexible charging pile, and a charging method capable of dynamically allocating power. The method comprises the following steps: S1, connect each charging terminal to a corresponding electric vehicle (S10); S2, the charging terminal receives a charging power demand of the electric vehicle, and compares the charging power demand with a module total power of a fixed power region corresponding to the charging terminal (S20); S3, if the charging power demand exceeds the module total power of the fixed power region, the charging terminal calculates the number of additional charging modules allocated to the current section of a direct-current bus, and delivers the number of charging modules to a matrix controller (S30); and S4, the matrix controller allocates, according to the required number of charging modules, the required number of charging modules in a dynamic power region to a corresponding direct-current bus, and at the same time, switches a module communication line to a corresponding communication bus (S40). The charging method capable of dynamically allocating power can satisfy charging demands of electric vehicles of different energy storage capacities and different charging rates, and improves the conversion efficiency and the utilization rate of a charging device.