Photovoltaic charging station energy scheduling management method

Abstract

The invention provides a photovoltaic charging station energy scheduling management method. A photovoltaic power generation system, an energy storage system, a PCS control system, a scheduling management system, a weather forecast communication interface and a load data communication interface are comprised. Based on a photovoltaic charging station structure and scheduling management design, energy flow between an energy storage cell unit and a power grid is controlled. A principle of preferential charging at the low load time and preferential discharging at the high load time is employed, electric energy of the energy storage system is transmitted to an AC power distribution network through the PCS control system to satisfy electricity demands, precise and efficient power grid load peak-load shifting can be realized, and economic benefits of the power grid is integrally improved. The method is advantaged in that a retired electric automobile cell is taken as a photovoltaic power generation energy storage device, and reutilization of the retired cell is realized.

Description

technical field [0001] The invention relates to an energy scheduling management method of a photovoltaic charging station, which controls the energy flow between an energy storage battery unit and a power grid based on the composition and structure design of the photovoltaic charging station. Background technique [0002] With the continuous development of society, the application of electricity has become more and more extensive in our lives, so more and more attention has been paid to the safety of electricity; Good elimination of the disadvantages brought by grid connection to the grid, the sudden failure of the generator set or the sudden increase of power demand will lead to a certain difference between the system's power generation and power consumption. For example, when a large amount of photovoltaic power generation is connected to the grid, one of the problems that the grid system often faces is that the sun goes down quickly and the peak of electricity consumption...

AI Technical Summary

Problems solved by technology

The electricity load generated after a large number of electric vehicles are put into operation will instead increase the peak-to-valley difference of the original load. The combination of retired electric vehicle batteries and photovoltaic power generation as part of the electric vehicle charging station can play a role in peak-shaving and filling of electricity load. As one of the energy storage devices for photovoltaic power generation, large-scale electric vehicle decommissioned batteries have the characteristics of being convenient for long-term storage of electric energy. The control measures of the charging station make it impossible for the energy storage battery of the charging station to efficiently balance the pressure of the power grid at any time, and the real peak-shaving and valley-filling has not been realized.

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