6
High-Performance Control of Induction Machines
6.1 Introduction
In Chapter 5, we developed strategies for controlling the speed of an induction machine. These strategies were all rooted in the observations made on the steady state behavior of the machine. In other words, by analyzing the steady state equivalent circuit of the machine, we derived schemes for its speed control.
Because of the fundamental role of the steady state equivalent circuit, it is expected that the resulting drive strategies would behave accordingly well, and just as expected, in steady state. However, during transients, for example, when the speed reference is varied or when the load torque on the shaft changes, the drive system will undergo a transient period ...
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