| Abstract [eng] |
This paper analyzes the modern single-phase capacitor and the shaded pole induction motor efficiency methods, their advantages and disadvantages.The world electric energy consumption of electric motors is about 17 TWh. Meanwhile, the small single-phase motors with power levels up to 0.75 kW consumption is close 2TWh, their efficiency ranges from 15 to 60%. The study results suggest that this type of feeding motors with electronically commutated voltage regulator, it is possible to simplify engine design, eliminating the extra winding speed control, it is possible for smooth speed control, the speed-stage switches are no longer required. Possibility remote control, the structure becomes cheaper and technological. Spectrum of higher voltage and current harmonic , with the new regulatory approach practically unchanged. |
