A charging and discharging control system for microgrid electric vehicles with self-distribution of power

Abstract

The present invention relates to a charging and discharging control system for microgrid electric vehicles with self-distribution of power, including a vehicle-mounted intelligent terminal, a micro-grid control center, an electric emergency vehicle and a bidirectional charging and discharging device, wherein the vehicle-mounted intelligent terminal is installed in the electric vehicle, It is used to collect the next day’s electricity demand information, receive the electricity price information broadcast by the microgrid control center, and generate electric vehicle charging and discharging strategies based on the electricity price information; the microgrid control center receives the next day’s electricity demand information of each electric vehicle, and based on the predicted microgrid Power generation information and the next day’s power demand information generate electricity price information and energy scheduling control instructions for electric assistance vehicles; electric assistance vehicles perform charge and discharge scheduling based on the energy scheduling control instructions; two-way charging and discharging devices are installed on electric vehicles and microgrids and Between the electric emergency vehicle and the micro-grid, the charging and discharging of the electric vehicle and the electric emergency vehicle are realized. Compared with the prior art, the invention has the advantages of improving the safe and reliable operation performance of the microgrid.

Description

technical field [0001] The invention belongs to the technical field of charge and discharge control of electric vehicles, in particular to a charge and discharge control system for electric vehicles with micro-grid self-distribution of electric power. Background technique [0002] One of the important features of smart grid user-side management is to guide power consumption through electricity prices, provide end users with lower-priced power resources, and provide more flexible energy management methods for power system scheduling of large power grids. A large number of electric vehicles are an important part of the load of the microgrid. On the one hand, the disorderly connection of a large number of electric vehicles will bring certain uncertainties, especially when the grid load peaks, if the charging load of electric vehicles is added, there will be It may cause the load peak to increase, affecting the safe and stable operation of the microgrid. On the other hand, the b...

AI Technical Summary

Problems solved by technology

However, this technology does not fully consider the use of new energy sources in the micro-grid, and does not take advantage of the energy storage characteristics of electric vehicle batteries, which requires additional energy storage device construction costs, high cost, and is not conducive to the safe and reliable operation of the micro-grid.

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