Contactless method of switching the starting phase of the motor-compressor unit of domestic refrigerators.
Abstract
The shortcomings of the existing control system of the HKB 6 motor-compressor unit have been analyzed. A scheme of the contactless method of switching the starting phase of the DHM-2/120 engine is proposed. The work is described and the advantages of this motor control circuit with a thyristor switch in the starting phase are indicated. The expediency of applying the method of mathematical modeling to analyze the work and calculate the individual elements of the scheme is shown. A mathematical model of a single-phase asynchronous motor with thyristor elements is considered. The calculated and experimental oscillograms of the single-phase motor start are given. Il 3. Bibliogr .: 3 titles.