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首页> 外文期刊>Electric Power Components and Systems >Cost-Effective Control Scheme for Reduction of Torsional Torque Oscillations in Starting Large Induction Motors
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Cost-Effective Control Scheme for Reduction of Torsional Torque Oscillations in Starting Large Induction Motors

机译：降低启动大型感应电动机的扭力转矩振荡的经济有效控制方案

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摘要

This article presents a cost-effective variable frequency drive for starting and operating large three-phase squirrel cage induction motors. The proposed drive employs the constant V/F control scheme, which regulates the rotor frequency such that it is always kept below a predetermined value. This has the effect of drastically reducing the motor shaft torque oscillations and significantly limiting the maximum value of the motor line current. In addition to its simplicity and hence cost-effectiveness, the proposed scheme is shown to be capable of (i) reducing the shaft torque oscillations to approximately 22% of that of the direct on-line start of the large motor, and (ii) limiting the motor line current to approximately 36% of that of the direct on-line start value.
机译：本文介绍了一种经济高效的变频驱动器，用于启动和运行大型三相鼠笼式感应电动机。提出的驱动器采用恒定V / F控制方案，该方案可调节转子频率，使其始终保持在预定值以下。这具有大大减少电动机轴转矩振荡并显着限制电动机线电流最大值的作用。除了其简单性和成本效益之外，所提出的方案还显示出能够（i）将轴转矩振荡降低到大型电机直接在线启动的轴转矩振荡的大约22％，以及（ii）将电机线路电流限制为直接在线启动值的大约36％。

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