The Nonuniform Discrete Short Time Fourier Transform - A New Tool for Electrical Power Components´ Monitoring

Author

Sarkar, Arghya ; Sengupta, S.

Author_Institution

MCKV Inst. of Eng., Howrah

fYear

2008

fDate

12-15 Oct. 2008

Firstpage

1

Lastpage

8

Abstract

This paper presents a new discrete short time Fourier transform (DSTFT) implementation algorithm, called nonuniform discrete short time Fourier transform (NDSTFT) for real time estimation of power components according to the IEEE Standard 1459-2000. The proposed NDSTFT algorithm is capable of detecting the spectrum of each finite short time section of the power signals at arbitrarily located specified frequencies and is able to perform sample by sample processing, thus, suitable for real time implementation in uniprocessor system. The NDSTFT based power components estimation algorithm has been implemented in real time by means of a Texas Instruments TMS320VC5416 digital signal processor. Fast and accurate estimation of power components has been observed utilizing the developed scheme.

Keywords

IEEE standards; discrete Fourier transforms; power system measurement; IEEE Standard 1459-2000; Texas Instruments TMS320VC5416 digital signal processor; electrical power component monitoring; nonuniform discrete short time Fourier transform; power component estimation; sample processing; uniprocessor system; Discrete Fourier transforms; Discrete wavelet transforms; Filter bank; Fourier transforms; Frequency estimation; Monitoring; Power harmonic filters; Power system harmonics; Signal processing algorithms; Voltage; Digital Signal Processor; Goertzel filter bank; IEEE Standard 1459-2000; nonsinusoidal conditions; nonuniform discrete short time Fourier transform; power measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology and IEEE Power India Conference, 2008. POWERCON 2008. Joint International Conference on

Conference_Location

New Delhi

Print_ISBN

978-1-4244-1763-6

Electronic_ISBN

978-1-4244-1762-9

Type

conf

DOI

10.1109/ICPST.2008.4745203

Filename

4745203