Testing system for stability of wide-area long-range tests based on RTDS (real time digital system)

Abstract

The invention discloses a testing system for the stability of wide-area long-range tests based on an RTDS (real time digital system). The system consists of an RTDS simulation system, simulation transformation apparatuses, an electric power system communication network, and field devices mounted on the site, wherein the RTDS simulation system simulates the analog quantity and the switching quantity of a result output in a real-time manner, the analog quantity and the switching quantity are input to the simulation transformation apparatuses through the input terminal of a simulation result, and after being transformed by the simulation transformation apparatuses, the simulation result is transmitted to protective control apparatuses of the field devices through the electric power system communication network; the field devices input the outlet information of actions to outlet information input terminals of the simulation transformation apparatuses through the electric power system communication network, the outlet information of the actions is fed back to the RTDS simulation system through the simulation transformation apparatuses, and bidirectional information interaction and wide-rage closed loop testing of the testing system are realized. Through the adoption of the system disclosed by the invention, the efficiency of the dynamic simulation tests of the RTDS can be improved, and more accurate and reliable test results can be obtained.

Description

technical field [0001] The invention relates to the technical field of power system stability, in particular to an RTDS-based wide-area remote test stability test system. Background technique [0002] With the improvement of power system safety and stability and power supply reliability requirements, the power system safety and stability control system has been widely used in various power grids across the country, and has become an indispensable part of the daily operation of the power grid. The power system safety and stability control system has a large scale, a large number of devices, and complex and changeable control strategies. It must pass the dynamic simulation test of the RTDS test system to ensure the reliability of the system operation. [0003] The traditional dynamic testing method of safety and stability control system is to build a test system basically the same as the actual system in the simulation laboratory, and conduct RTDS simulation test intensively. ...

AI Technical Summary

Problems solved by technology

On the one hand, building a simulation test system in the simulation laboratory requires a lot of wiring and configuration work, but the test system built each time is not reusable, and the efficiency of the simulation test is low; on the other hand, the actual operation of the safety and stability control system The scale is huge, limited by the site of the simulation laboratory and the RACK scale of the RTDS system, it is impossible for the test system to completely reproduce the entire actual system, and only a part of the system can be dynamically simulated, and sometimes the device software running on site must be adjusted To meet the requirements of the test, the reliability of the test results is limited

[0004] In addition, protection and control equipment such as DC control and protection devices, multi-circuit DC coordination control devices, and relay protection devices also have the problem of inability to fully simulate the actual system operation and low efficiency when centralized RTDS dynamic simulation in the simulation laboratory

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