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

A physical interface and real-time simulation technology, applied in the direction of electrical digital data processing, special data processing applications, data processing input/output process, etc., can solve problems such as error, low conversion rate of physical interface, inaccurate conversion timing, etc., to achieve Corrected effects of channel gain and channel offset

Active Publication Date: 2009-06-03
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 the full-digital real-time simulation physical interface device of the power system according to the present invention, which shows the connection relationship between various parts in the physical interface device.

[0027] like figure 1 As shown, the physical interface device for all-digital real-time simulation of the power system according to the present invention mainly includes a chassis 10 , a backplane 20 , a power supply 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 to install 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 functional boards and LCD screens of the entire chassis. The LCD screen 50 is used for operation monitoring and...

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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 the physical 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 full digital real-time simulation of a power system. Background technique [0002] Real-time simulation of power system can simulate various processes of power system in real time, and can be connected to actual physical devices 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. The full-digital real-time simulation is based on modern computer technology and information technology. 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 units. The computing platform includes multiple computing cores (usually multiple DSP chips or mul...

Claims

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Application Information

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Patent Type & Authority Applications(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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