Power grid model splicing method for relay protection multistage setting calculation and system thereof

A power grid model splicing, setting calculation technology, applied in the direction of calculation, electrical components, circuit devices, etc., can solve problems such as model inconsistency, equipment duplication, equipment naming inconsistency, etc., to reduce requirements, avoid splicing errors, and improve splicing speed and accuracy Effect
CN103532144AInactive Publication Date: 2014-01-22STATE GRID ANHUI ELECTRIC POWER CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID ANHUI ELECTRIC POWER CO LTD
Publication Date
2014-01-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a power grid model splicing method for relay protection multistage setting calculation and a system thereof, and according to the method, the power grid model splicing for whole network with the high-voltage side outlet wire of a main transformer is used as a boundary model. The invention further provides a power grid model splicing system for the relay protection multistage setting calculation. The high-voltage side outlet wire of the main transformer is used as the splicing boundary place, so that the demand to the model consistency is reduced, the splicing error due to different modeling of buses in superior and subordinate power grids is avoided, the model splitting and splicing operation quantity is largely decreased, and the smooth splicing is guaranteed.
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Description

technical field

[0001] The invention relates to the technical field of power systems, in particular to a grid model splicing method and system for multi-level setting calculation of relay protection.

[0002] Background technique

[0003] Power grid model splicing uses a series of methods such as unified equipment naming conventions, boundary grid analysis, model splitting, and model splicing to effectively synthesize each model to form a complete network-wide model. Power grid model splicing provides powerful data support for integrated setting calculation work under large operating conditions, and is of great significance for considering the correct action of relay protection in the whole network.

[0004] However, the actual power grid has the characteristics of wide-area distribution, massive parameters, and complex models. Over the years, the production management of electric power has naturally formed a set of "hierarchical management, hierarchical control, and distri...

Claims

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