TY - GEN
T1 - Design of a novel high performance digital fault recorder
AU - Huang, Nantian
AU - Liu, Xiaosheng
AU - Xu, Dianguo
AU - Sun, Jian
PY - 2010
Y1 - 2010
N2 - Power quality is the most important problems in power system automation. Aim to analysis and improve the power quality, many types of power quality events, such as voltage unbalanced, harmonic, frequency offset and multiple short time power quality disturbances, should be recorded accurately. This paper proposed a new design proposal of a novel digital fault recorder which could record the power quality waveform signals in 24 hours a day. The original power quality signals are transformed by fast Fourier transforms (FFT) and the waveform distortion is determined by the amplitude spectrum. In order to compression the data of power quality signals, the waveform without distortion is described by the first circle's waveform. Hence, every power quality events signals and stationary signals will be recorded by one circle signal of each time. Then, the first circle signals of each event are compressed by wavelet transform so as to get higher compression ratio. The signal compressed by DFR will be stored in the Flash or RAM chips and transferred to principal computer. The data will be used for power quality analysis.
AB - Power quality is the most important problems in power system automation. Aim to analysis and improve the power quality, many types of power quality events, such as voltage unbalanced, harmonic, frequency offset and multiple short time power quality disturbances, should be recorded accurately. This paper proposed a new design proposal of a novel digital fault recorder which could record the power quality waveform signals in 24 hours a day. The original power quality signals are transformed by fast Fourier transforms (FFT) and the waveform distortion is determined by the amplitude spectrum. In order to compression the data of power quality signals, the waveform without distortion is described by the first circle's waveform. Hence, every power quality events signals and stationary signals will be recorded by one circle signal of each time. Then, the first circle signals of each event are compressed by wavelet transform so as to get higher compression ratio. The signal compressed by DFR will be stored in the Flash or RAM chips and transferred to principal computer. The data will be used for power quality analysis.
KW - Data compression
KW - Digital fault recorder
KW - Fast Fourier transforms (FFT)
KW - Power quality
KW - Power quality disturbance
KW - Power quality event
KW - Wavelet transform (WT)
UR - https://www.scopus.com/pages/publications/77954196586
U2 - 10.4028/www.scientific.net/AMR.108-111.470
DO - 10.4028/www.scientific.net/AMR.108-111.470
M3 - 会议稿件
AN - SCOPUS:77954196586
SN - 0878492690
SN - 9780878492695
T3 - Advanced Materials Research
SP - 470
EP - 475
BT - Progress in Measurement and Testing
T2 - 2010 International Conference on Advanced Measurement and Test, AMT 2010
Y2 - 15 May 2010 through 16 May 2010
ER -