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While growing silicon crystals the quality of crystals is significantly affected by the stability of facility parameters, including the levels of vibrations. The torsional vibrations, arising as a result of the rotational moment pulsations, have the largest amplitude. A method for improving the quality of silicon crystals by using the induction motors with combined windings and so called magnetic wedge to reduce the negative effect of the torsional vibrations on the crystallization process has been proposed. The application of the proposed solutions has allowed a 56% reduction of the torsional vibrations level. The computer simulation of the asynchronous motor by the finite element method has been performed. The theoretical results have been confirmed by the tests on the samples of induction motors with combined windings.

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