Virtual Instrument Design of Metro Power Harmonic Detection System based on the Improved FFT Algorithm

DOI

10.2991/eame-15.2015.11How to use a DOI?

Keywords

the improved FFT algorithm; harmonic analysis; virtual instrument

Abstract

The current hardware detection methods have many drawbacks, such as poor flexibility and single function. Considering the frequency fluctuation and half-wave symmetric characteristic of the metro power system signals, an improved FFT algorithm that only analyzes the odd harmonics in its calculation is presented and just has a half amount of the traditional FFT. On this basis, the metro power harmonic detection system was developed based on virtual instrument. The PC-DAQ structure scheme was adopted for hardware of this system.The software of this system was developed based on LabVIEW2009. The tests show that this system can achieve the expecting functions and has the high accuracy.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Y.B. Ma
AU  - Z.G. Ye
PY  - 2015/07
DA  - 2015/07
TI  - Virtual Instrument Design of Metro Power Harmonic Detection System based on the Improved FFT Algorithm
BT  - Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
PB  - Atlantis Press
SP  - 40
EP  - 42
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-15.2015.11
DO  - 10.2991/eame-15.2015.11
ID  - Ma2015/07
ER  -