RTDS-based microcomputer protection integrated test method

Abstract

The invention discloses an RTDS-based microcomputer protection integrated test method. The method comprises: establishing a power primary system model in an RTDS; establishing a voltage transformer model, a current transformer model and a switch switching control system model in the RTDS; establishing a protection simulation model in the RTDS for simulation imitation of the protection hardware device in an electric power system; and performing microcomputer protection simulation testing according to the established models. According to the invention, protection hardware is replaced by simulation models, the method provided by the invention has the advantages of small size, short construction period, flexible configuration, high repeatability and the like, and a test result maintains consistent when an actual hardware protection device is accessed, space occupied for device testing and device number can be substantially reduced, the testing efficiency is high, and the operation debugging flexibility is high.

Description

technical field [0001] The invention relates to the technical field of microcomputer protection in power systems, in particular to an RTDS-based microcomputer protection integrated testing method. Background technique [0002] Power system real-time simulation refers to a power system simulation method that simulates various operating processes of the power system in real time and can be connected to actual physical devices for experiments. In power systems, in order to verify the performance of new control and protection equipment, they must be tested before they are put into actual system operation. [0003] Most of the commonly used simulation tools in power systems are non-real-time and off-line, and they have been widely used in the testing and verification of power systems. However, in the traditional non-real-time off-line digital simulation calculation, it often takes several minutes or even tens of minutes for a transient process of several seconds, which cannot me...

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Problems solved by technology

[0005] However, since the protection simulation in general RTDS requires the participation of the actual protection hardware device, the corresponding protection device hardware must be purchased separately during the test. When multiple sets of different types of protection are involved, the configuration requirements for the protection hardware device higher

At the same time, due to the poor scalability of the physical device, the scale of the power system that can be simulated is limited by many factors such as the physical characteristics of the device itself.

This kind of RTDS simulation test that requires the participation of protection hardware devices takes up a lot of space, requires a large number of devices, has poor repeatability, and low test efficiency.

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