Abstract

Multiphase valve electromechanical systems with an odd number of phases (three, five, seven, nine, etc.) have been investigated. It has been established that, with an increase in the number of phases, the copper consumption and losses in copper do not increase as compared to a three-phase machine. The increase in the number of phases of the multiphase motor winding, while maintaining unchanged power, makes it necessary to reduce the supply voltage of the converter; i.e., the phase voltages of the motor are reduced (the motor becomes “low-voltage motor”). However, this increases the input current of the converter. The increase in the number of phases of the motor at a constant power leads either to a decrease in the phase inductance, or to a decrease in the phase current compared to a three-phase winding. This can help improve switching the keys of the converter. As the number of phases increases, the loading current of the converter keys decreases. The results of experiments confirming the theoretical studies are presented.

中文翻译：

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多相阀机电系统理论的要素

摘要

研究了具有奇数个相（三，五，七，九等）的多相阀机电系统。已经确定，与三相机器相比，随着相数的增加，铜的消耗和铜中的损耗没有增加。多相电动机绕组的相数的增加在保持功率不变的同时，有必要降低转换器的电源电压。即，电动机的相电压降低（电动机变为“低压电动机”）。但是，这增加了转换器的输入电流。与三相绕组相比，在恒定功率下电动机相数的增加导致相电感的减小或相电流的减小。这可以帮助改善转换器键的切换。随着相数的增加，转换器键的负载电流减小。给出了证实理论研究的实验结果。