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Sub-network decoupling method and system for electromagnetic transient automatic modeling of a large-scale power grid

An electromagnetic transient, automatic modeling technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of tediousness, increase the repetitive work of users, easy to make mistakes, etc., and achieve the effect of improving work efficiency

Active Publication Date: 2019-04-19
CHINA ELECTRIC POWER RES INST
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Problems solved by technology

This operation of manually modifying the type and parameters of the decoupling element is cumbersome and error-prone; and when the automatic modeling method is used for electromagnetic transient modeling, the user needs to follow the solution again every time the electromagnetic transient model is automatically generated. The coupling scheme corrects the power grid model once, which greatly increases the repeated work of the user

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  • Sub-network decoupling method and system for electromagnetic transient automatic modeling of a large-scale power grid
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  • Sub-network decoupling method and system for electromagnetic transient automatic modeling of a large-scale power grid

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[0042] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0043] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention provides a sub-network decoupling method and system for large-scale power grid electromagnetic transient automatic modeling, and belongs to the technical field of large-scale power grids. The method comprises the following steps: determining a type selection rule, and automatically setting an alternating current line electromagnetic transient modeling type; Listing all AC line information of the target power grid, and providing a type selection menu; Selecting a power transmission line at a proper position as a decoupling element according to the target power grid structure, andmodifying the type of the corresponding power transmission line in the alternating current line list to realize power grid decoupling; And according to the automatically set line type and the line type modified by the user, automatically generating a line element electromagnetic transient model. Through automatic generation of the decoupling line model, the work of manually modifying the electromagnetic transient model is eliminated, and the working efficiency of electromagnetic transient simulation research is greatly improved.

Description

technical field [0001] The invention relates to the technical field of large-scale power grids, and more specifically, to a method and system for decoupling sub-networks for automatic modeling of electromagnetic transients in large-scale power grids. Background technique [0002] With the rapid development and progress of my country's economy and society, energy security, climate change, and sustainable development have become major strategic issues for my country's economic and social development. In order to adapt to economic and social development, the State Grid Corporation of China has continued to promote the rapid development of UHV power grids in recent years, so that the main grid of the State Grid has shown the remarkable characteristics of AC-DC hybrid connection. [0003] Electromagnetic transient simulation is a more accurate technical method for simulating the operating characteristics of AC and DC power grids. However, for the electromagnetic transient simulat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20Y02E60/00
Inventor 胡涛朱艺颖郭强王薇薇于钊李亚楼刘翀董鹏习工伟李芳
Owner CHINA ELECTRIC POWER RES INST
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