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Distribution network reliability assessment method considering the spatio-temporal distribution of electric vehicles

A technology of electric vehicles, space-time distribution, applied in electric vehicles, current collectors, vehicle components, etc., to avoid invalid calculations and improve efficiency

Active Publication Date: 2021-05-28
CHONGQING UNIV
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  • Description
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Problems solved by technology

[0005] To sum up, the research on reliability assessment of distribution network considering electric vehicles is similar to the research on electric vehicle charging load forecasting. Issues related to the spatial and temporal distribution of electric vehicles

Method used

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  • Distribution network reliability assessment method considering the spatio-temporal distribution of electric vehicles
  • Distribution network reliability assessment method considering the spatio-temporal distribution of electric vehicles
  • Distribution network reliability assessment method considering the spatio-temporal distribution of electric vehicles

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Embodiment Construction

[0086] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0087] see Figure 1 to Figure 13 , is a distribution network reliability assessment method that takes into account the spatio-temporal distribution of elect...

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Abstract

The invention relates to a distribution network reliability evaluation method considering the time and space distribution of electric vehicles, belonging to the field of smart grids. The method includes: S1: constructing a charging / discharging behavior model based on electric vehicle user travel; S2: constructing a distribution network reliability evaluation model considering electric vehicles to the grid, including: improving the distribution network Monte Carlo reliability evaluation simulation time The propulsion method is to calculate the electric vehicle's participation in V2G call power and the reliability index of the distribution network during the fault period. Based on the charging and discharging behavior model of the electric vehicle, the invention improves the traditional distribution network Monte Carlo simulation simulation time advance method, avoids the invalid calculation amount generated by directly using the traditional method, and improves the simulation efficiency.

Description

technical field [0001] The invention belongs to the technical field of smart grids and relates to a distribution network reliability evaluation method considering the time and space distribution of electric vehicles. Background technique [0002] As a means of transportation driven by electric energy, electric vehicles are a load with random distribution characteristics for the grid. With the development of electric vehicle technology, the capacity of electric vehicle batteries is gradually increasing. Researchers use electric vehicle energy storage batteries as emergency power sources. When the distribution network fails, V2G technology is used to provide power to the fault island to improve the reliability of the distribution network. [0003] Common research on distribution network reliability, such as Liu Wenxia and others in the literature "Quantitative analysis of the impact of electric vehicle load on distribution network reliability [J]. Acta Electric Power System an...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00B60L55/00
CPCH02J3/00
Inventor 张谦王众朱熠
Owner CHONGQING UNIV
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