Modeling the Effects of Magnetic Saturation on Electrical Machine Control Systems

Abstract A new induction machine model including the effects of magnetic saturation is developed through magnetic circuit modeling. The new model has advantages for use in designing control systems, and is applied to the design of field-oriented control schemes for saturated machines. The control methods are extensions of standard field- oriented methods for linear-magnetics machines, but remove cross coupling between rotor flux control and torque control that are produced by magnetic saturation. Observers for estimating rotor flux are also discussed.