Synchrophasor Initiative in India - erldc

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SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 2012Table 14: Prony Analysis for duration 1Duration 1Frequency Amplitude Phase Damping Power % Damping Ratio0.268056 64.89061 6.10728 0.428132 2762.681 42.05589 0.2463407420.506594 47.88857 0.480918 0.507842 994.5288 15.13957 0.1575392370.740993 29.69791 0.982771 0.461709 427.1927 6.503091 0.0986749590.998874 19.18257 1.099747 0.409642 208.5957 3.175421 0.0651250691.26131 33.22245 0.990928 0.621605 410.0982 6.242865 0.0781877451.483538 52.13898 1.811218 0.842068 834.5671 12.70449 0.0899624761.705713 47.59308 2.843419 0.863031 688.9935 10.48845 0.0802592181.922993 30.81344 4.154074 0.910696 242.4137 3.690228 0.075152545• Duration 2: 03:29:02.600 Hrs - 03:29:11.960 HrsRihand Unit 1 (500 MW) TrippedPossibility of Anpara unit 1,2,3 (3x200 MW) Tripping in same intervalNon-Linear Optimization6 Sine Damped Components49.949.87549.8549.82549.849.77549.7549.725r^2=0.995998 SE=0.0030262 F=2398.4949.949.87549.8549.82549.849.77549.7549.725Figure 127: Prony Analysis of Frequency using 6 exponentially sine damped casePOSOCO Page 122 of 143
SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 2012Table 15: Prony Analysis for duration 2Duration 2Frequency Amplitude Phase Damping Power % Damping Ratio0.397995 8.940054 4.341222 -0.04151 545.377 8.851019 -0.0165958770.801764 35.84076 6.121129 0.505462 661.3904 10.73382 0.0998262990.982584 74.80438 0.828222 0.712059 1739.611 28.23246 0.1145656761.107195 57.67048 2.603614 0.701553 1294.976 21.01638 0.1003268091.375815 16.55803 3.131538 0.528765 130.2619 2.114043 0.06104769Duration 3: 03:30:52.000 Hrs - 03:30:55.960 HrsRihand Unit 2 (500 MW) Tripped49.4949.4849.4749.4649.4549.446 Sine Damped Componentsr^2=0.99823 SE=0.000709011 F=1863.1549.4949.4849.4749.4649.4549.44Figure 128: Prony Analysis of Frequency using 6 exponentially sine damped casePOSOCO Page 123 of 143
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