Closed-loop real-time simulation system and method

Abstract

The invention provides a closed-loop real-time simulation system and a closed-loop real-time simulation method, which are used for carrying out analogue simulation on various faults of primary equipment accessed to a power grid so as to verify the correctness of control strategy logic. An interface card used by a traditional real-time simulation system is replaced by the GTNET interface card, and line connection in the traditional real-time simulation system is simplified. In order to improve the simulation efficiency of the real-time simulation system, a current analog quantity signal, a voltage analog quantity signal and a GOOSE switching value signal which are sent by a real-time digital simulator are converted into optical signals for transmission, so that the situations that the real-time simulation system is stuck in operation and low in simulation efficiency are avoided; and meanwhile, a strategy of parallel simulation of multiple stability control devices is adopted, so that the simulation efficiency of the real-time simulation system is further improved.

Description

technical field [0001] The invention belongs to the technical field of power system simulation, in particular to a closed-loop real-time simulation system and method. Background technique [0002] Real time digital simulation system (real time digital simulation system, RTDS) is the product of the development of digital simulation technology, computer technology and parallel processing technology. The real-time operation of RTDS and the ability of closed-loop testing. [0003] RTDS is used to simulate the operation and various faults of the primary equipment in the power grid equipped with a stability control system, and provide the required analog and switch input signals for the stability control system, and at the same time receive the output signal of the switch value of the stability control system, through Set various faults to investigate the action process of the entire stability control system to verify the correctness of the control strategy logic. [0004] At pr...

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Problems solved by technology

[0004] At present, the RTDS has adopted the GTNET interface card to communicate with the stability control system for analog and digital quantities, which has optimized the shortcomings of complex wiring and error-prone RTDS using traditional interface cards, but when the analog and digital signals output by the GTNET interface card When there are too many signals, it will still cause RTDS to run stuck and the simulation efficiency is low. If the test system includes multiple stability control devices, it will greatly affect the running speed of RTDS and obtain the simulation results in real time.

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