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http://dx.doi.org/10.5573/ieek.2013.50.2.174

Power Quality Measurement for LED-based Green Energy Lighting Systems  

Yu, Hyung-Mo (School of Information, Communications, and Electronic Engineering, The Catholic University of Korea)
Choi, Jin-Won (School of Information, Communications, and Electronic Engineering, The Catholic University of Korea)
Choe, Sangho (School of Information, Communications, and Electronic Engineering, The Catholic University of Korea)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.2, 2013 , pp. 174-184 More about this Journal
Abstract
For the successful R&D and deployment of LED-based green energy lighting systems, the real-time power quality measurement of both various non-linear power signals including pulse waveform, spike waveform, etc and the undesired-signals including harmonics, sag, swell, etc is required. In this paper, we propose a low-cost power quality measurement (PQM) method for low- (60Hz-several KHz) to high-frequency (several tens KHz) power signals, which are generated by green-energy lighting systems, and implement a PQM testbed using TI TMS320F28335 MCU. The proposed algorithm is programmed using C in the CCS (Code Composer Studio) 3.3 environment and is verified using test signals generated by an arbitrary signal generator, NF-WF1974. In the implemented testbed, we can measure various non-linear current signals that LED SMPS generates, analyze harmonics by fast Fourier transform, and test sag, swell, and interruption using wavelet transform.
Keywords
LED; Power Quality Measurement; Pulse Waveform; High Frequency; Power Factor; THD; Fast Fourier Transform(FFT); Wavelet Transform;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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