Simulation device and method of characters of merging unit of intelligent transformer substation

A technology of intelligent substation and simulation device, which is applied in the direction of measuring device, measuring electricity, measuring electric variables, etc.

Active Publication Date: 2014-03-05
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing merging unit simulation device cannot better realize the influence of the above characteristics of merging unit on smart substations

Method used

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  • Simulation device and method of characters of merging unit of intelligent transformer substation
  • Simulation device and method of characters of merging unit of intelligent transformer substation

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Experimental program
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Embodiment Construction

[0042] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043]The present invention provides a simulation device for the characteristics of an intelligent substation merging unit, the structure diagram of which is as follows figure 1 As shown, the structure of the present invention takes dual-core CPU, FPGA, and the DDR2 memory of the storage system as the core, plus peripheral components such as sensors, analog-to-digital converters, CPLDs, optical fiber Ethernet modules, optical serial drivers, and constant temperature crystal oscillators. Sensors, analog-to-digital converters, CPLDs, CPUs and FPGAs are connected in sequence; the FPGA is connected to the optical serial driver and the fiber optic Ethernet module, and the constant temperature crystal oscillator is connected to the CPU and the FPGA respectively; the device is provided with a memory system and an electrical Ethe...

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Abstract

The invention relates to dynamic simulation devices and methods for all voltage grades of a power system, in particular to a simulation device and method of the characters of a merging unit of an intelligent transformer substation. The simulation device accords with a DL / T860 communication protocol and has the functions that secondary signals of multiple traditional voltage mutual inductors and current mutual inductors are received; the secondary signals are converted into digital light signals which accord with the DL / T860.92 and the GB / T 20840.8; all characters of the merging unit can be simulated at the same time, wherein the characters comprise the synchronizing and desynchronizing character, frame loss, delay, delay deviation and delay jitter of sampling valve messages, and sampling frequency deviation and jitter; the synchronous mark, the state character and the quality place of the sampling valve messages can be modified in real time, and the sampling valve deviation and superimposed harmonic components can be simulated. The simulation device and method solve the problem that simulation can not be achieved easily for abnormal conditions of the electronic mutual inductors and the merging unit in the dynamic simulation process of the intelligent transformer substation, and can be widely applied to reliability research and testing of secondary equipment of the intelligent transformer substation.

Description

technical field [0001] The invention relates to a dynamic simulation device and a simulation method for each voltage level of a power system, in particular to a simulation device and a simulation method for characteristics of an intelligent substation merging unit. Background technique [0002] As one of the core contents of smart grid, the research and construction scale of smart substation will also be greatly developed. In the smart substation, all the connections between secondary equipment adopt high-speed network communication, and the manufacturing of secondary equipment is based on standardized and modular design, so that the sharing of data and resources is maximized. Among them, the relay protection device, measurement and control device, fault recording device and safety automatic device and other interval layer equipment obtain the voltage and current of the primary equipment no longer directly from the secondary signal of the transformer based on the cable, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G05B19/042
Inventor 李仲青周泽昕陆伟周春霞詹荣荣杜丁香张鹏程元张福雪
Owner STATE GRID CORP OF CHINA
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