IEC flickermeter based on TMS320C6713 DSP
FENG Liang，ZHANG Youbing，WENG Guoqing, CHEN Quan
（College of Information Engineering, Zhejiang University of Technology, Hangzhou 310032, China）
Abstract: In order to measure voltage flicker accurately, the IEC flickermeter with 400 Hz sampling rate was designed on TMS320C6713 digital signal processor (DSP), according to function and design specification of flickermeter recommended by IEC. And according to calibration standard of IEC flickermeter given by IEC, several calibration results of rectangular fluctuation signal were given.  The effect of harmonic and white noise on accuracy of IEC flickermeter was also analyzed. To reduce the white noise’s influence, wavelet threshold denoising was applied. The calibration results show that IEC flickermeter based on TMS320C6713 DSP is accurate.the analysis results show that white noise will influence the accuracy of the flickermeter rather than harmonic. the calculation results show that the accuracy of the flickermeter is improved significantly.
Key words: IEC flickermeter; TMS320C6713; digital signal processor (DSP); instantaneous flicker sensation level; shortterm flicker severity