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
CN109657332AActive Publication Date: 2019-04-19CHINA ELECTRIC POWER RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ELECTRIC POWER RES INST
Publication Date
2019-04-19

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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.
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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...

Claims

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