Electromagnetic transient simulation platform-based secondary device modeling method

Abstract

The invention provides an electromagnetic transient simulation platform-based secondary device modeling method. Based on an existing mature power grid primary device electromagnetic transient simulation (DDRTS) technology, digital models of various relay protection devices in a power grid are built by adopting a graphic simulation support platform system; protection setting values of all levels inthe power grid are input to the digital relay protection device models; and by performing various electromagnetic transient process simulation on the power grid, action conditions of the relay protection devices are observed, so that the correctness of the relay protection setting values of all the levels in the power grid is checked.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a secondary equipment modeling method based on an electromagnetic transient simulation platform. Background technique [0002] The existing simulation system has the following deficiencies: [0003] Cannot adapt to the trend of continuous upgrading of secondary devices [0004] The protection devices currently configured in the simulation system room are basically the same as the secondary equipment in the actual operation of the substation. However, with the technical update of the protection devices, there will definitely be differences between the devices in the training room and the devices in the actual operation of the substation, and the differences may gradually expand. The purchase of secondary equipment requires a large amount of investment, and the rapid update of equipment requires continuous investment of funds, which brings great troubles to the upgrading a...

AI Technical Summary

Problems solved by technology

[0003] Cannot adapt to the trend of continuous upgrading of secondary devices

[0004] The protection devices currently configured in the simulation system room are basically the same as the secondary equipment in the actual operating substation. However, with the technical update of the protection devices, there will definitely be differences between the devices in the training room and the devices in the actual operating substation, and the differences may gradually expand.

The purchase of secondary equipment requires a large amount of investment, and the rapid update of equipment requires continuous investment of funds, which brings great troubles to the upgrading and transformation of the simulation system room

[0005] Cannot adapt to the actual needs of the gradual expansion of the scope of training

[0006] The current simulation training room has only built a 220kV simulation training system. In the future, the training scale of 500kV and 110kV voltage levels will be established to meet the practical training of technical personnel of power grid units at all levels in Jiangsu Province. At present, the simulation system room has limited space. The access scale of secondary system equipment is greatly restricted. Even if the scale is expanded, the secondary equipment in the training room cannot be accessed without restriction, resulting in the production training needs of reconstruction and expansion cannot be met

[0007] It cannot adapt to the development trend of the systematization of secondary equipment in the future

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