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Physical interface device of all-digital real-time simulation system of power system

A physical interface, real-time simulation technology, applied in electrical digital data processing, special data processing applications, data processing input/output process, etc., can solve problems such as errors, low conversion accuracy of physical interface, and low conversion rate of physical interface , to achieve the effect of correcting channel gain and channel offset

Active Publication Date: 2011-02-09
CHINA ELECTRIC POWER RES INST +1
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AI Technical Summary

Problems solved by technology

The conversion accuracy of the physical interface is not high, and the conversion timing is not accurate, which will introduce errors in the test; the conversion rate of the physical interface is low, so the simulation step size cannot be set to a small value

Method used

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  • Physical interface device of all-digital real-time simulation system of power system
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  • Physical interface device of all-digital real-time simulation system of power system

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Experimental program
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Embodiment Construction

[0026] figure 1 It is a schematic diagram of a physical interface device for all-digital real-time simulation of a power system according to the present invention, showing the connection relationship between various parts in the physical interface device.

[0027] Such as figure 1 As shown, the physical interface device for all-digital real-time simulation of a power system according to the present invention mainly includes a chassis 10 , a bottom board 20 , a power board 30 , a main control board 40 , a liquid crystal screen 50 , a function board 60 , and a calibration device 70 . The chassis 10 is used for installing modules in the chassis. The backplane 20 is used to provide a power bus, a synchronization bus, a PCI bus, and the like. The power board 30 is used to provide redundant and reliable power supply. The main control board 40 is used to control all function boards and LCD screens of the entire cabinet. The liquid crystal screen 50 is used for operation monitorin...

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Abstract

The invention discloses a physical interface device of an all-digital real-time simulation system of a power system, and the physical interface device can synchronously convert AI, AO, DI, DO and other signals of the real-time simulation system with high precision, capture level hopping, pulse triggering and other events, mark precise time scales for the events, continuously output waveform with very small refresh intervals and realize fault wave recording and replaying, open-loop test of a traveling-wave device and other functions. In addition, the modular design is realized according to thephysical interface device of the all-digital real-time simulation system of the power system, the interfaces of AI, AO, DI and DO function boards are same, and the number of the different function boards can be flexibly configured according to the needs of trials; furthermore, the physical interface device of the all-digital real-time simulation system of the power system realizes fault diagnosis, automatic calibration and other functions and realizes the synchronous and parallel operation of a plurality of physical interface devices.

Description

technical field [0001] The invention relates to the field of power system simulation, in particular to a physical interface device for all-digital real-time simulation of a power system. Background technique [0002] The power system real-time simulation can simulate various processes of the power system in real time, and can be connected to the actual physical device for testing. At present, the means that can realize real-time simulation of power system mainly include physical simulation, digital-physical hybrid simulation and full digital simulation. Among them, full digital real-time simulation is based on modern computer technology and information technology. It is flexible and convenient to use, cost-effective, and occupies a small area. Good scalability is the main development direction of real-time simulation in the world. [0003] The full digital real-time simulation system of power system is usually composed of computing platform, physical interface and other uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06F3/05
Inventor 张星李亚楼田芳王峰郑伟杰
Owner CHINA ELECTRIC POWER RES INST
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