DG optimal allocation method in distribution network considering the impact of electric vehicle charging and discharging

A technology for electric vehicles, optimized configuration, applied in circuit devices, electrical components, combustion engines, etc.

Active Publication Date: 2016-03-09
SHANGHAI UNIVERSITY OF ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still few articles on the collaborative research of electric vehicles connected to the distribution network and distributed power generation planning, and the optimization of charging and discharging of electric vehicles in the distribution network and DG has not yet been fully considered. comprehensive consideration in planning

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  • DG optimal allocation method in distribution network considering the impact of electric vehicle charging and discharging
  • DG optimal allocation method in distribution network considering the impact of electric vehicle charging and discharging
  • DG optimal allocation method in distribution network considering the impact of electric vehicle charging and discharging

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Embodiment Construction

[0068] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0069] 1. The impact of charging and discharging of electric vehicles on the maximum load of the power grid

[0070] Electric vehicles can be divided into two categories according to whether they participate in grid dispatch: one is pure electricity load that only charges but not discharges; Charging and discharging characteristics, release the electric energy stored in the battery into the system during the peak period of system power consumption to alleviate the peak load, and use the battery as a load to absorb electric energy during the low period of power consumption, as a more e...

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Abstract

The invention relates to a DG optimal configuration method taking influences of electric automobile charge and discharge into consideration in a power distribution network. The method includes the following steps that firstly, the influences of electric automobile charge and discharge on network loads are calculated; secondly, a DG programming mathematic model taking electric automobiles into consideration is set up, and the mathematic model is solved through an improved self-adaption genetic algorithm based on hybrid coding to obtain the optimal DG configuration scheme. According to the method, social benefits such as operating cost of power distribution enterprises, investment cost of DG investors, environmental benefits of the DG and social benefits such as power generation and transmission investment which is saved by the V2G are taken into comprehensive consideration, the mathematic model based on chance constrained programming and containing DG optimal programming in the V2G power distribution network is set up, and the model is solved through the improved self-adaption genetic algorithm based on hybrid coding.

Description

technical field [0001] The invention relates to the field of electric vehicles and distributed power grids, in particular to a DG optimal configuration method in a distribution network considering the influence of charging and discharging of electric vehicles. Background technique [0002] Electric vehicles (electric vehicles, EV) use electricity instead of traditional petroleum to drive vehicles, which can alleviate the trend of energy shortage and reduce greenhouse gas emissions, and are developing rapidly. The charging and discharging of large-scale electric vehicles is bound to have a huge impact on the structure and operation of the distribution network. In recent years, distributed generation (DG) such as wind power, photovoltaics, energy storage power stations, and micro gas turbines has attracted widespread attention due to its clean, renewable, and high-efficiency characteristics. As an effective supplement to centralized power generation, distributed generation is ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/28G06N3/12
CPCY02T10/40
Inventor 李振坤杨秀刘舒时珊珊
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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