Synchrophasor Initiative in India - erldc

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SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 20125.6.8 Case Study-36: Spectral Analysis using Fast Fourier Transform (18-Apr-2012)The spectral analysis of oscillations observed in Western Region on 18 th April 2012 was carriedout using Fast Fourier Transform. The inferences are elaborated below. The duration of plots is10 seconds.• Scenario 1: HVDC Bhadrawati back to back power order < 900MWDate: 18-04-2012 TIME: 1415Hrs-1425Hrs Power Flow to SR: 750MWFigure 115: FFT of frequency at Bhadrawati (HVDC B’wati flow 750MW)Figure 116: FFT of frequency at Raipur (HVDC B’wati flow is 750MW)POSOCO Page 114 of 143
SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 2012Figure 117: FFT of frequency at Hyderabad (HVDC B’wati flow 750MW)Figure 118: FFT of the frequency at Bangalore (HVDC B’wati flow is 750MW)POSOCO Page 115 of 143
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Synchrophasor Initiative in India - erldc

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