Closed-loop test system for IO (input/output) channel signals of analog board in RTDS (real time digital simulator)

Abstract

The invention discloses a closed-loop test system for IO (input / output) channel signals of an analog board in an RTDS (real time digital simulator), which comprises an amplitude input module, a frequency input module, a phase input module, a function generator, an analog output element, an analog input element and an oscillographic element, wherein the amplitude input module, the frequency input module and the phase input module are respectively correspondingly connected to amplitude, frequency and phase ports of the function generator, the output end of the function generator is connected with the input end of the analog output element, output signals of the function generator are taken as 12 channels of input signals of the analog output element, an output port of the analog output element is connected with an input port of the analog input element by using a special test busbar of the RTDS, and the oscillographic element is respectively connected with the output end of the function generator and 12 channels of inputs of the analog input element. By using the system disclosed by the invention, no other external oscillographic instrument (recording oscillograph or signal generator) is required to be used; and meanwhile, the system is reliable in implementation method, and simple and quick in operation.

Description

technical field [0001] The invention relates to a closed-loop test system for an IO channel signal of an analog board in an RTDS. Background technique [0002] Before the RTDS (Real Time Digital Simulator, real-time digital simulator) simulation test, it is necessary to check the availability of the RTDS analog board and whether its IO channel can transmit data correctly; during the RTDS simulation test, the digital IO signal The channel often fails, and the correct data transmission cannot be realized. At this time, it is necessary to check the IO channel of the RTDS digital quantity board, and judge whether the RTDS digital quantity board is faulty through the test, and then eliminate the fault to ensure the smooth development of the RTDS simulation test. RTDS digital board (GTAO (analog output) board and GTAI (analog input) board) IO channel test is an extremely important test link in the power system RTDS modeling and simulation test, and it is the correct test result of...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a closed-loop test system for analog board IO channel signals in a real-time digital simulation system, aiming to solve unnecessary errors caused by IO channel signal problems in the existing RTDS simulation test process

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