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

A technology of real-time digital simulation and closed-loop testing, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as IO channel signal problems, achieve the effects of eliminating errors, simple and fast operation, and reliable implementation methods

Active Publication Date: 2012-08-22
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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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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  • Closed-loop test system for IO (input/output) channel signals of analog board in RTDS (real time digital simulator)
  • Closed-loop test system for IO (input/output) channel signals of analog board in RTDS (real time digital simulator)

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Embodiment Construction

[0012] In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0013] See figure 1 , The present invention provides an analog board IO channel signal test system in a real-time digital simulation system including: an amplitude input module, a frequency input module, a phase input module, a function generator, an analog output component, an analog input component and Oscilloscope components. The amplitude input module, frequency input module, and phase input module are respectively connected to the Mag (pk), Freg (Hz) and AbsPhase (rad) ports of the function generator, and are used to set the amplitude, Frequency and phase. The output terminal A of the function generator is connected to the input terminal of the analog output component as the input of the GTAO board. The output signal A of the fu...

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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 analog quantity board IO channel signals in RTDS. Background technique [0002] Before the RTDS (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; in the process of 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 board, and determine whether the RTDS digital 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 simulation test, and the power system RTDS simulation test result is correct An important guara...

Claims

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Application Information

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IPC IPC(8): G01R31/3163
Inventor 谢惠藩王海军吕家圣张楠冯鸫
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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