Interface data transmission method based on RTDS and RTLAB joint real-time hybrid simulation

Abstract

The invention provides an interface data transmission method based on RTDS and RTLAB joint real-time hybrid simulation. An electromechanical transient model is established in a real-time simulator RTDS. An electromagnetic transient model is established in a real-time simulator RTLAB. The electromechanical transient model and the electromagnetic transient model are decoupled. The line parameters ofthe acquired transmission line are processed based on a Bergeron transient model based on a lossless transmission line. The equivalent circuits of an electromechanical system and an electromagnetic system are constructed according to calculated equivalent impedance. A real-time simulator RTDS and real-time simulator RTLAB joint real-time hybrid simulation interface circuit is formed. The electromechanical transient model and the electromagnetic transient model respectively measure and send the data of the side to the opposite side, and receive the data sent by the opposite side. The method provided by the invention has the advantages that the simulation scale is expanded; the simulation efficiency is improved through parallel processing; and the instantaneity, synchronization and reliability of hybrid simulation and the accuracy of the simulation result are ensured.

Description

technical field [0001] The invention relates to the field of electromechanical and electromagnetic real-time mixed simulation, in particular to an interface data transmission method based on combined real-time mixed simulation of RTDS and RTLAB. Background technique [0002] The power system is a large-scale nonlinear complex system composed of primary equipment such as generation, transmission, distribution, and utilization, as well as secondary equipment such as auxiliary control and relay protection, in which the response characteristics and response times of each component are very different. Therefore, it is difficult to accurately describe all the dynamic processes of the actual power grid with a general digital simulation method. However, in the existing simulation analysis software, namely electromechanical transient analysis software and electromagnetic transient analysis software, the electromechanical transient analysis software uses fundamental wave, phasor and s...

AI Technical Summary

Problems solved by technology

[0002] The power system is a large-scale nonlinear complex system composed of primary equipment such as generation, transmission, distribution, and utilization, as well as secondary equipment such as auxiliary control and relay protection, in which the response characteristics and response times of each component are very different. Therefore, it is difficult to use a general digital simulation method to accurately describe the entire dynamic process of the actual power grid.

However, in the existing simulation analysis software, namely electromechanical transient analysis software and electromagnetic transient analysis software, the electromechanical transient analysis software uses fundamental wave, phasor and sequence to analyze the system, and uses quasi Steady-state model simulation, simplification of unconcerned parts, resulting in reduced accuracy and reliability of simulation

The electromagnetic transient analysis software is based on the ABC three-phase instantaneous value representation, and the dynamic characteristics of all components of the system are described by differential equations. However, due to the electromagnetic model and solution method used, the scale of the simulation cannot be too large

At the current level of technology, the computing power of a single real-time simulator cannot meet the actual needs of real-time simulation of large-scale power systems

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