A digital simulation of an induction machine is described. The simulation is suitable for analyzing the operation for either a motor or generator with different speeds. The induction generator load is represented in the simulation by symmetrical or unsymmetrical R, L circuits. The computer program described in this paper calculates both the transient and steady-state performance of the machine from its equivalent circuit parameters. The effect of the magnitude and direction of the generator shaft speed on its stability is dis cussed. The method of simulation is relatively easy to program and can be solved with a personal digital computer. The example given was applied to study and illustrates the performance of the induction generator under different operating conditions.
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