Optimal Duty Cycle Model Predictive Current Control of High-Altitude Ventilator Induction Motor With Extended Minimum Stator Current Operation

High-altitude ventilator has been utilized to blow the air into airship airbags to achieve flight control of the stratospheric airship. Owing to the thin air in the stratosphere, high-altitude ventilator induction motor operates at high-speed light-load condition. The traditional minimum stator current operation is employed to minimize conduction and switching losses below the rated speed. This pa...