The Acquisition and Processing of OCT/VT Signals with DSP

Sheng Zhu; Jun Xu; Wen Jia; Hai Long Li; Sha Li; Meng Meng Wu; Bo Yi

doi:10.4028/www.scientific.net/AMM.303-306.1808

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 303-306The Acquisition and Processing of OCT/VT Signals...

The Acquisition and Processing of OCT/VT Signals with DSP

Abstract:

In this paper, it gives a proposal for OCT/VT (optical current / voltage transformer) signals acquisition and processing. This project is used in smart grid, which needs high precision but low EMI. The OCT/VT use fiber to transform signals. It is insulating, susceptible to EMI, and there is no electromagnetic saturation phenomenon. Thus it can fulfill the requirement of smart grid. The project contains four parts: PD and amplification, ADC sampling, digital signals processing and storage, data transmission from PCB board to computer via USB. Compared with other similar methods, this system can provide faster processing speed and higher accuracy. The system measuring range is 0-1000A (OCT) after shunt, and 0-1000V (OVT) after divider, both meet the 0.2S industry standard.

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Periodical:

Applied Mechanics and Materials (Volumes 303-306)

Pages:

1808-1811

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.303-306.1808

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Online since:

February 2013

Authors:

Sheng Zhu, Jun Xu, Wen Jia, Hai Long Li, Sha Li, Meng Meng Wu, Bo Yi

Keywords:

A/D Sampling, Complex Programmable Logic Device (CPLD), Digital Signal Processor (DSP), Electric-Optic Modulation, OCT/VT, USB

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References

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