Electric vehicle charging station distributed electric energy management method

Abstract

The invention discloses an electric vehicle charging station distributed electric energy management method. The method is implemented through a processing unit and comprises the following steps: (A) obtaining at least one to-be-planned pane of each electric vehicle; (B) for each electric vehicle, obtaining charging electric power or discharging electric power of the electric vehicle in each to-be-planned pane according to the electric vehicle information corresponding to the electric vehicle, the at least one selling price, the at least one buying price, the at least one bidding price and thedegradation cost; (C) obtaining the total consumed electric power of the charging station in each time pane; (D) judging whether at least one overload pane exists or not according to the total consumed electric power of each time pane; and (E) when it is determined that the at least one overload pane exists, adjusting the buying price of each overload pane, and repeating the steps (B) to (D) untilit is determined that the at least one overload pane does not exist.

Description

technical field [0001] The invention relates to an electric energy management method for an electric vehicle charging station, in particular to a distributed electric energy management method for an electric vehicle charging station that schedules charging and discharging of each electric vehicle in a distributed manner. Background technique [0002] In response to global warming, car manufacturers in various countries have begun to develop electric vehicles to replace traditional fossil fuel engines. However, the charging status of electric vehicles will be unpredictable due to different user habits. If all electric vehicles are charged at the same time during peak hours of electricity consumption, it may It will cause the peak load to be too high and cause the problem of low backup capacity. In addition, the electricity cost for charging during peak hours is relatively high. Therefore, the power management of electric vehicle charging stations is an urgent problem to be sol...

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Problems solved by technology

[0002] In response to global warming, car manufacturers in various countries have begun to develop electric vehicles to replace traditional fossil fuel engines. However, the charging status of electric vehicles will be unpredictable due to different user habits. If all electric vehicles are charged at the same time during peak hours of electricity consumption, it may It will cause the peak load to be too high and cause the problem of low backup capacity. In addition, the electricity cost for charging during peak hours is relatively high. Therefore, the power management of electric vehicle charging stations is an urgent problem to be solved.

[0003] Existing technologies such as "An Optimal Charging / Discharging Strategy for SmartElectrical Car Parks" The method proposed in this paper is to build an electric vehicle based on the current state of charge of the electric vehicle, electricity price, expected state of charge, and grid demand charging and discharging strategy, however, the above method considers the status of all electric vehicles located in the charging station at the same time when optimizing the charging and discharging strategy of each electric vehicle. The calculation dimension of the formula operation is very high, and the calculation time required is relatively long

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