Simulated direct-current power transmission control protection system

Abstract

The invention relates to a simulated direct-current power transmission control protection system. The system comprises a direct-current control protection simulation basic functional module, configuration software NewLinkC, a direct-current control protection simulation program module, a direct-current control protection simulation module and a system element simulation module of a real-time digital simulator (RTDS), wherein the direct-current control protection simulation program module generates a direct-current control protection simulation program by performing function configuration on each element of the direct-current control protection simulation basic functional module on the configuration software NewLinkC; the direct-current control protection simulation program module is defined per se and encapsulated to form the direct-current control protection simulation module by self-defined element programming and encapsulation technology of the RTDS; and the direct-current control protection simulation module is interconnected with the system element simulation module of the RTDS to form an RTDS-based closed-loop AC / DC simulation system. The system realizes one-to-one device-level simulation, has the advantages of strong universality and portability, low cost, high flexibility and strong practicability, and is simply connected to an RTDS simulation platform.

Description

technical field [0001] The invention relates to a simulated DC transmission control and protection system, which belongs to the field of electric power systems. Background technique [0002] In recent years, with the localization of my country's UHVDC transmission projects and the continuous operation of a large number of DC transmission projects in China, the simulation research of DC transmission technology and AC-DC large-scale system interconnection technology has become the frontier and hot spot of power system research. The core of DC transmission technology—the simulation of DC transmission control and protection system is the key technology in these hot researches. [0003] As we all know, my country's hydropower resources and coal are mainly in the central and western regions, while the economically developed regions are mainly in the east. Therefore, with the continuous expansion of the grid scale, the interconnection between regional grids and the continuous improv...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a simulated DC transmission control and protection system to solve the problems of the existing simulated DC transmission control and protection system, such as long construction period, high cost, strong dependence on hardware, poor practicability, flexibility and versatility, etc.

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