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Electrical Power Systems
12.6. Draw the complete block diagram model and write down all the state equations of the three area and four area interconnected power system as shown in Fig. 12.28.
Fig. 12.28 12.7. For a single area system, assume Tg » 0.0, Tt » 0.0, R = 2.40 Hz/pu MW, Kp = 100.0, Tp = 20.0 sec and D PL = 0.01. Obtain an expression of Df(t) and the value of Dfss.
Ans: Df(t) = 0.029(1 e 1.717t ) D fss = 0.029 Hz.