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首页> 外文期刊>Electric Power Components and Systems >On the Control of a Field-Weakened Induction Motor Having Improved Transient and Static Performances
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On the Control of a Field-Weakened Induction Motor Having Improved Transient and Static Performances

机译：具有改善的瞬态和静态性能的弱磁感应电动机的控制

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摘要

The field-weakening control of an indirect field-oriented (IFO) induction motor (IM) drive with good dynamic and static performances is studied. First, the operating characteristics of an IFO induction motor drive under conventional field-weakening control are studied to comprehend its limitations. In the pro-. posed field-weakening control scheme, the normal d-axis flux current command is the first set. It consists of a major component generated based on conventional 1/ω{sub}r approach and a loading compensating component. Then the normal command is augmented with transient and static compensating components to automatically further improve its defects. During the transient period, the former component is generated from the torque current tracking error and added to adaptively further adjust the field such that the current tracking control performance is improved; hence, the transient torque generating capability is also enhanced accordingly. Finally, a robust current controller and a detuning compensator are developed to enhance the current tracking performance of a detuned induction motor. As the transient is elapsed and enters the static period, the static compensating flux current command is tuned using the proposed intuitive approach to let the motor quickly reach a stable condition having better static torque generating capability, thus the energy conversion efficiency is improved. Effectiveness of the proposed field-weakening control method is demonstrated experimentally.
机译：研究了具有良好动态和静态性能的间接磁场定向（IFO）感应电动机（IM）驱动器的弱磁场控制。首先，研究了在传统的弱磁场控制下的IFO感应电动机驱动器的工作特性，以了解其局限性。在亲。如果采用弱磁场控制方案，则第一个法线是d轴磁通电流指令。它由一个基于常规1 /ωr方法生成的主要成分和一个负载补偿成分组成。然后，使用瞬态和静态补偿组件来增强正常命令，以自动进一步改善其缺陷。在过渡期间，前一个分量由转矩电流跟踪误差产生，并被添加以自适应地进一步调整磁场，从而改善电流跟踪控制性能；因此，瞬态转矩产生能力也相应提高。最后，开发了鲁棒的电流控制器和失谐补偿器，以增强失谐感应电动机的电流跟踪性能。随着瞬态的过去并进入静态周期，使用本发明提出的直观方法对静态补偿磁通电流指令进行了调整，以使电动机迅速达到具有更好静态转矩产生能力的稳定状态，从而提高了能量转换效率。实验证明了所提出的弱磁场控制方法的有效性。

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