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Reliability evaluation method and terminal equipment of microgrid isolated island operation

A micro-grid and reliability technology, applied in the direction of single-grid parallel feeding arrangement, electrical components, circuit devices, etc., can solve the problem of inability to accurately assess the reliability of micro-grid islands, and improve operation stability and new energy acceptance capacity. , the effect of improving the accuracy of the evaluation

Active Publication Date: 2020-08-11
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a microgrid island operation reliability assessment method and terminal equipment to solve the problem that current assessment methods cannot accurately assess the reliability of microgrid island operation in industrial parks containing EV charging stations

Method used

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  • Reliability evaluation method and terminal equipment of microgrid isolated island operation
  • Reliability evaluation method and terminal equipment of microgrid isolated island operation
  • Reliability evaluation method and terminal equipment of microgrid isolated island operation

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Embodiment Construction

[0027] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0028] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0029] figure 1 The implementation flowchart of the microgrid island operation reliability evaluation method provided by the embodiment of the present invention is described in detail as follows:

[0030] In S101, the failure rate and failure recovery rate of each com...

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Abstract

The invention relates to the technical field of computer, and provides a method for evaluating the reliability of islanding operation of microgrid and terminal equipment. The method comprises the following steps: obtaining the failure rate and the failure repair rate of each component in the microgrid; calculating the failure-free working time and the failure repair time of each component according to the failure rate and the failure repair rate of each component, and obtaining a time series table; according to the preset fault isolation strategy and the preset micro-grid power interaction strategy, respectively analyzing the operation status of the micro-grid after the failure of each component in the time series table, and determining the power outage time of each load node in the micro-grid after the failure occurs; calculating reliability indexes of each load node; and calculating the reliability indices of microgrid system according to the reliability indices of each load node. The invention can improve the evaluation accuracy of the islanding operation reliability of an industrial park microgrid including an EV charging station.

Description

technical field [0001] The invention relates to the technical field of micro-grid operation reliability evaluation, in particular to a micro-grid island operation reliability evaluation method and terminal equipment. Background technique [0002] In recent years, clean energy technologies such as wind power and photovoltaics have developed rapidly, and the development of distributed power represented by distributed photovoltaics has shown explosive growth momentum. A large number of micro-grids connected to the power distribution system will be a new form of the future distribution network, and this will be more common in some large industrial parks. The development of micro-grid technology has largely solved the impact of clean energy power generation output instability on the distribution network, and at the same time improved the power grid dispatching center's ability to control distributed power, effectively promoting the high penetration of clean energy power generatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/28
CPCH02J3/00H02J3/28H02J3/381H02J3/388H02J2203/20
Inventor 梁纪峰胡文平范辉王磊胡雪凯于腾凯
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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