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Large-scale charging station electric energy quality comprehensive evaluation method

A technology for power quality and comprehensive evaluation, applied in the field of charging stations, can solve problems such as imperfect power quality evaluation, and achieve the effect of eliminating correlation

Pending Publication Date: 2021-01-29
ZHEJIANG HUADIAN EQUIP TESTING INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current national standards, the problem of incomplete power quality evaluation proposes a new evaluation method to evaluate the power quality of electric vehicle charging piles

Method used

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  • Large-scale charging station electric energy quality comprehensive evaluation method
  • Large-scale charging station electric energy quality comprehensive evaluation method
  • Large-scale charging station electric energy quality comprehensive evaluation method

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Embodiment Construction

[0046] Below in conjunction with the appendix of the present invention Figure 1~2 , clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementations can be obtained by those skilled in the art without making creative efforts.

[0047] In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of It is convenient to describe the present invention, but does not indicate or imply that the device or...

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Abstract

The invention relates to the field of charging stations, and aims to provide a large-scale charging station electric energy quality comprehensive evaluation method which evaluates the electric energyquality of a distribution network by connecting large-scale charging piles in a charging station through a method of combining example analysis and actual data, and specifically comprises the following steps: step 1, constructing a power distribution network electric energy quality index system of the charging station, wherein the electric energy quality indexes comprise a voltage deviation value,a frequency deviation value and a three-phase voltage unbalance degree; executing the step 2; step 2, taking the power quality indexes as input, inputting the power quality indexes into a trained power quality comprehensive evaluation model, outputting evaluation levels of the power quality indexes, and executing the step 3; and step 3, determining the distribution of the charging piles in the charging station according to the evaluation level of the power quality indexes.

Description

technical field [0001] The invention relates to the field of charging stations, in particular to a method for comprehensively evaluating power quality of large-scale charging stations. Background technique [0002] In recent years, many domestic experts have modeled the charging pile and analyzed the harmonic mechanism generated by it. When a large-scale centralized charging station is in operation, various types of harmonics will be generated due to the different types of charging piles produced by various manufacturers and internal topological structures, which will affect the internal monitoring and control equipment of the charging station and cause operational risks; when multiple charging stations are in operation , each harmonic will have an impact on the power grid and affect the safety of the power grid. Therefore, it is of great significance to study the harmonic generation mechanism of large-scale charging piles, its evaluation and its effect on the inside and ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06395G06Q10/06393G06Q50/06Y02P90/82
Inventor 刘志凯潜力群郑伟烁李志伟吴钢李海弘刘华
Owner ZHEJIANG HUADIAN EQUIP TESTING INST
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