A Reliability Evaluation Method for Regional Multi-microgrid System Considering Stochastic Correlation

A reliable and relevant technology, applied in single-network parallel feeding arrangements, data processing applications, instruments, etc., can solve problems such as complex power supply reliability

Active Publication Date: 2020-02-11
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with a single microgrid, the power supply reliability of the microgrid group has more complex characteristics

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  • A Reliability Evaluation Method for Regional Multi-microgrid System Considering Stochastic Correlation
  • A Reliability Evaluation Method for Regional Multi-microgrid System Considering Stochastic Correlation
  • A Reliability Evaluation Method for Regional Multi-microgrid System Considering Stochastic Correlation

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[0066] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limiting the...

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Abstract

The invention discloses a reliability assessment method considering random correlation of a regional multi-microgrid system. The reliability assessment method comprises the following steps of 1, analyzing random correlation among running variables of a microgrid group; 2, building a microgrid group reliability model on an air speed and a load in the microgrid group; 3, sampling the running variables on the microgrid group; 4, judging a convergence condition of a reliability index of the microgrid group; 5, making a power supply strategy in microgrid group reliability assessment; and 6, calculating reliability of the microgrid group system. The random correlation among the running variables of each microgrid in the microgrid group is considered, the microgrid group reliability assessment model is applied to a microgrid group reliability assessment algorithm, guidance is provided for reliable power supply of the microgrid group, guidance is provided for microgrid group coordinated running dispatching, and moreover, high reliable power supply of the microgrid group is ensured.

Description

technical field [0001] The invention relates to the technical field of power system reliability assessment, in particular to a reliability assessment method for regional multi-microgrid systems considering random correlation. Background technique [0002] In recent years, with the development of micro-grid technology, several micro-grid projects have been built in various places. In industrial parks and other occasions, a microgrid group composed of several microgrids has become one of the trends in the field of microgrid development. [0003] The microgrid group is a more complex system composed of several microgrids. Compared with the microgrid, it has different characteristics. For example, there are energy mutual aid and support behaviors among the microgrids in the microgrid system. However, compared with a single microgrid, the power supply reliability of the microgrid group has more complex characteristics. [0004] Therefore, it is necessary to seek an evaluation s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38G06Q50/06G06Q10/06
Inventor 张兴友孙树敏程艳张用王玥娇
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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