A control method for orderly charging of electric vehicles considering the fluctuation of wind power output
A charging control method and electric vehicle technology, applied in electric vehicles, secondary battery charging/discharging, battery circuit devices, etc.
Active Publication Date: 2016-02-24
NANJING GUOLIAN ELECTRIC POWER ENG DESIGNCO
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Therefore, when wind power is connected to the grid, its inherent and significant uncertainty and its anti-peaking characteristics will bring huge challenges to the safe, stable and economical operation of the grid.
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] Taking a residential area as an example, a time-sharing rolling optimization control method for electric vehicle charging is proposed. Assuming that one day is divided into 96 time periods, that is, the time interval is 15 minutes, according to the historical conventional data, the routine load data at 96 points of the day can be predicted, such as figure 1 As shown, the specific optimization control method is as follows:
[0030] 1) Initialize the load information of the distribution network and the electricity price information of the day.
[0031] This embodiment initializes the load information of the distribution network on the day as follows: the community has 780 households, and each household owns a car, of which there are 100 electric vehicles, and the penetration rate of electric vehicles is 12.8%. Residential elect...
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The invention discloses an electric automobile orderly charging control method with wind power output fluctuation considered. The method includes the following steps that (1) initialization is conducted on intraday power distribution network load information and intraday electricity price information; (2) wind power output information of a current period is read; (3) a charging station systematically judges whether a new electric automobile drives into the charging station or not; (4) according to expected parking time of electric automobiles in the charging station in the period, the maximum value tM of the parking time of all the vehicles is obtained, and the length T of optimization time of the time is calculated; (5) according to the constraint conditions and system information of a formula (please see the formula in the specification), the charging state xn of each electric automobile is determined, and orderly charging of the electric automobiles is achieved. The method is used for electric automobile orderly charging policy management after the electric automobiles and wind power are connected into a power grid at the same time, and the load peak-and-valley difference and user benefits are made to be optimal with load wind power output fluctuation stabilizing as the target, with electric automobile user charging expense, the peak-and-valley difference and the like as constraints and by the adoption of an optimization algorithm.
Description
technical field [0001] The invention relates to a method for controlling orderly charging of electric vehicles, in particular to a method for controlling orderly charging of electric vehicles considering the fluctuation of wind power output, and belongs to the technical field of new energy power generation control. Background technique [0002] The shortage of traditional fossil energy and the environmental pollution caused by its excessive consumption make the development of new energy a focus. Electric vehicles have attracted widespread attention due to their advantages of zero emissions, high efficiency, and low noise. With the development of charging and swapping facilities and battery technology, it can be expected that a large number of electric vehicles will be connected to the grid. [0003] After large-scale electric vehicles are connected to the power grid, the economic benefits caused by electric vehicles and their impact on the planning and operation of the power...
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IPC IPC(8): H02J7/00H02J7/02H01M10/44
CPCY02E60/10
Inventor 宁佳陈成王琦汤奕
Owner NANJING GUOLIAN ELECTRIC POWER ENG DESIGNCO