Realizing method of distributed networking relay protection setting calculation system

Abstract

The invention discloses a realizing method of a distributed networking relay protection setting calculation system. The realizing method mainly comprises the following steps of: (1) starting the setting calculation and the power grid boundary equivalent calculation; (2) exchanging a boundary constant value; (3) forming a local power grid distributed relay protection setting calculation data environment; (4) generating a relay protection setting calculation cooperative relationship; (5) generating a relay protection setting calculation case; (6) calculating a setting calculation case, and calculating to obtain a setting calculation constant value of a local power grid according to imported boundary setting data; and (7) outputting the setting calculation constant value of the local power grid, and stopping a distributed relay protection setting calculation flow path. In the actual calculation, the calculation results obtained by wholly importing the ex-situ power grid data into the calculation results are almost to be same as one another completely; and the whole data of the ex-situ power grid is only represented by several equivalent impedances, so that the calculation speed can meet the requirement on the setting calculation.

Description

technical field [0001] The invention relates to a method for realizing a distributed networked relay protection setting calculation system. Background technique [0002] With the continuous development of my country's power grid construction, the scale of the power grid has been developed from inter-provincial interconnection to regional interconnection. It is getting bigger and bigger, and the degree of grid connection is getting closer. In this power grid environment, some new changes have occurred in the calculation of relay protection setting value: the power grids in various regions are increasingly closely related, and cannot be completely separated in the setting calculation, and the simplified boundary equivalent value of the original manual calculation has affected The accuracy of the calculation results; there is an urgent need for the interaction of setting calculation and setting values ​​between power grids in adjacent areas; the single-machine, single-point rel...

AI Technical Summary

Problems solved by technology

[0004] Regarding the first key point, there are roughly two existing solutions for the setting calculation system: the first is to obtain a rough system equivalent value to represent the remote power grid through manual fault calculation, and then enter the equivalent data into the local power grid data, This solution can guarantee the calculation speed, but in the current power grid environment, it cannot meet the calculation accuracy requirements; the second is to complete it through data merging, that is, to completely merge the data of the power grid in different places into the power grid to form a large power grid. Then calculate on the basis of the large power grid. This scheme can meet the calculation accuracy requirements, but due to the large scale of the calculation grid, it cannot meet the calculation speed requirements.

[0005] The second key point is that most of the existing setting calculation systems are solved by manual entry or data merging. Although this can solve the problem of coordinating the calculation of boundary setting values, the operation is cumbersome, and the primary data of the remote power grid needs to be completely merged into the In local data, this will cause the problem already mentioned in the first key point, which will greatly affect the calculation speed

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