In this letter, we will present a similar technique to interpolate
the entire TSC curve from three arbitrary points on it. Also, we
will give a formula for the stator resistance and pull-out torque
that would be exact for the given torque speed values, and approximate
formulas for the rotor resistance and the sum of stator
and rotor reactance values. This technique can be used to get
a rough online estimate of parameters, which can be refined
using several other techniques available. Section II explains how
the TSC curve is uniquely determined if three points on it are
known. In Section III, we will derive formulas for parameter estimation
and illustrate it with a simulation example.