Electric vehicle power distribution method based on micro-grid electric energy quality state

Abstract

The invention provides an electric vehicle power distribution method based on the electric energy quality state of a micro-grid, and the method comprises the steps: transmitting the real-time information of an electric vehicle after the electric vehicle reaches the micro-grid, and collecting the information of a large power grid and the information of the micro-grid from a control center and a micro-grid aggregator; an electric vehicle charging scheme is optimized; and optimizing active and reactive power distribution schemes of the electric vehicle, the distributed renewable energy source and the energy storage power station in the micro-grid in the alternating current and direct current energy exchange process according to the electric energy quality change of the micro-grid and the related information change condition of the electric vehicle. In combination with the influence of electric vehicle charging and distributed renewable energy source grid connection in the micro-grid on the electric energy quality, an electric vehicle charging scheme and an active and reactive power distribution scheme of multiple main bodies in the micro-grid in the alternating current and direct current energy exchange process are optimized according to the real-time information change of a power grid and a user; the requirements of electric vehicle user driving and distributed renewable energy local consumption are met, and the normal operation of the micro-grid is supported.

Images