Hybrid Fuzzy Vector Control for Single Phase Induction Motor

The single phase induction motors are the ones which have the widest applications in small power operation circmstance. The research on them mainly base on the finite model, and generally does not consider the effect of the infinite time-vary parameters. So, the sensorless vector control scheme based on hybrid fuzzy controller is presented to improve the robust and adaptive characteristics of system. At first, the indirect field oriented control can be obtained according to the general mathematical model of the single phase induction motor. The current controllers are constructed by the hybrid fuzzy controller after decoupling them to attain effective and easily realizable control characteristics. The design of rotor speed estimator is carried on, the rotor estimating speed is used instead of the rotor speed. The two sets of windings of stator of single-phase induction motors are controlled by SPWM inverters. The control schemes presented are realized by the physical prototype. The experiment results prove that the system has the advantage such as the sensorless speed measure, the easily realizable control and the high control efficiency.