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Relational database-based power grid CIM model data storage method

A model data and database technology, applied in the field of power grid CIM model data storage, can solve problems such as immature development of database technology, and achieve the effects of ensuring standardization and maintainability, efficient storage, and improving maintenance efficiency.

Inactive Publication Date: 2016-09-21
STATE GRID CORP OF CHINA +5
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Converting object-oriented CIM model data to object-oriented database schema is the most direct mapping, but the development of object-oriented database technology is still very immature

Method used

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  • Relational database-based power grid CIM model data storage method
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  • Relational database-based power grid CIM model data storage method

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Embodiment Construction

[0040] A method for realizing storage of grid CIM model data based on a relational database of the present invention comprises the following steps:

[0041] Step 1. Establish class and attribute mapping

[0042] In the classes of CIM model data, the IdentifiedObject class is the base class of almost all model types. This class establishes a naming system for derived class objects. Its mRID attribute is the identifier of the object and requires global uniqueness. The name attribute indicates the name of the object, not unique requirement.

[0043]In the class inheritance system, in addition to defining its own attributes and associations, derived classes also inherit the attributes and associations of the base class. Therefore, the leaf node class in the inheritance system will have the attributes and associations of all classes on the inheritance chain. If only the leaf node classes are transformed into tables in the relational database, all the associations between classes ...

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Abstract

The invention discloses a relational database-based power grid CIM model data storage method. The method comprises the steps of (1) establishing class and attribute mapping; (2) establishing inter-class relationship mapping of a model; (3) establishing a data maintenance method; and (4) establishing a topology maintenance method. Through the method, object-oriented CIM model data is mapped into a relational database mode for storage, and the relational database mode is matched with a relational database used by most power systems at present, so that efficient storage is realized on the premise of ensuring CIM model data integrity, all power grid model data including a complex model object can be stored, the data storage and access efficiency is high, the standardability and maintainability of model data storage are well ensured, the extension is easy, and the maintenance efficiency of power grid resource data is improved.

Description

technical field [0001] The invention relates to a method for storing CIM model data of a power grid based on a relational database. Background technique [0002] Grid CIM model data use object-oriented technology to describe the power system. Converting object-oriented CIM model data to object-oriented database schema is the most direct mapping, but the development of object-oriented database technology is still very immature. On the other hand, most power systems use relational databases or proprietary file formats to store data. Therefore, in order to match with the relational database, it is necessary to map the object-oriented CIM model data into a relational database mode for storage. Contents of the invention [0003] The purpose of the present invention is to provide a method for realizing storage of CIM model data of a power grid based on a relational database, and realize efficient storage under the premise of ensuring the integrity of the CIM model data. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/22G06F16/258G06F16/284Y02D10/00
Inventor 苏雪源刘彬谢萍萍张继红陈日辉彭伟陈荣黄锋郭永平张翔王震梁添增
Owner STATE GRID CORP OF CHINA
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