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Electric vehicle photovoltaic charging station optimization scheduling method considering user behavior

A technology for electric vehicles and optimal scheduling, applied in photovoltaic power generation, combustion engines, internal combustion piston engines, etc., can solve problems such as the impact of life loss, insufficient consideration, and complex life loss models of battery energy storage, so as to prolong cycle life, Simplify calculations and improve the effect of user benefits

Active Publication Date: 2019-05-03
杭州东华电力设备有限公司
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Problems solved by technology

However, in the existing research on optimal scheduling of photovoltaic charging stations for electric vehicles, the life loss model of battery energy storage for electric vehicles is relatively complex, and the impact of life loss on battery life of electric vehicles in the V2G behavior of electric vehicle users is not considered enough

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  • Electric vehicle photovoltaic charging station optimization scheduling method considering user behavior
  • Electric vehicle photovoltaic charging station optimization scheduling method considering user behavior
  • Electric vehicle photovoltaic charging station optimization scheduling method considering user behavior

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with specific embodiments, but it should not be understood that the scope of the above-mentioned main body of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

[0055] In this embodiment, the structure of the electric vehicle photovoltaic charging station is as follows figure 1 shown. The charging station includes 20 charging piles, the rated power of the photovoltaic power generation system is 100kW, and the rated capacity of the storage system is 300kWh. The minimum and maximum SOC limits for energy storage system batteries are 0.2 and 0.95. The constant power of photovoltaic charging piles to charge electric vehicles is ...

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Abstract

The invention discloses an electric vehicle photovoltaic charging station optimization scheduling method considering a user behavior, that is, an electric vehicle supplies power to a power grid only when an electricity price is higher than the discharge loss of a vehicle-borne storage battery. Therefore, according to measured data, a B-spline curve is used to establish mathematical models of the influence of a discharge depth and an ambient temperature on the cycle life of a storage battery through the two steps of preliminary fitting and partial correction, the influences of a discharge depthfactor and a temperature factor on the cycle life of the storage battery are comprehensively considered, and the discharge loss corresponding to each discharge behavior of the vehicle-borne battery is obtained. On the basis, with the output of an energy storage system and the interaction power with a large power grid as the optimization variables, with minimum operating cost of the system as an optimization goal, the day-to-day optimal scheduling model of the system is established, and the model is solved by using an adaptive genetic optimization algorithm. The invention has a certain significance for extending the service life of the electric vehicle storage battery and promoting the development of renewable energy.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic charging stations for electric vehicles, and in particular relates to an optimal scheduling method for photovoltaic charging stations for electric vehicles considering user behavior. Background technique [0002] With the rapid growth of electric vehicle production, the planning and construction of corresponding charging facilities have also attracted widespread attention from all walks of life. Photovoltaic charging stations for electric vehicles, as a typical way to realize on-site utilization of renewable energy in urban environments, can effectively improve the utilization rate of renewable energy and reduce carbon emissions. Relevant demonstration projects have been carried out in many places at home and abroad. [0003] Electric vehicle photovoltaic charging station system usually consists of photovoltaic battery pack, energy storage system, central control unit, DC-DC converter, AC-DC...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J3/46
CPCY02E10/56Y02E70/30Y02T10/40
Inventor 罗平程晟陈潇瑞姜淏予闫文乐
Owner 杭州东华电力设备有限公司
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