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Unformatted text preview: 1 Lecture 15 SIMULATION RESULTS The results in this lecture are based on numerically integrating ) , ( u x f dt x d = , modeling the induction motor with shortcircuited rotor windings. The initial states are . ) ( = x Current Pattern Fig. 1 shows the first three cycles of the current Sd i . In the dq frame, the steadystate currents are at line frequency of the voltage supply, which is 60 Hz. The waveform of Sd i consists of the 60 Hz steadystate which dominates over the transients. The transient is slightly apparent because (i) the first peak is higher than the other peaks and (ii) there is a dc offset in the 60 Hz component. Fig. 1 also shows S i . In the  frame, the steadystate currents are time invariant. The small damped fluctuation riding on the constant of S i are due to the transient components. In both cases, the initial state ) ( = x is satisfied. The transient solution is required to bridge the initial steadystate with the final states of the steadystate solution. After the transients have damped out, the residual is the steadystate component....
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This note was uploaded on 02/23/2010 for the course ECSE 462 taught by Professor Bontekooi during the Spring '09 term at McGill.
 Spring '09
 BonTekOoi

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