• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议> >A Current Control Scheme with an Adaptive Internal Model for Robust Current Regulation and Torque Ripple Minimization in PMSM Vector Drive
【24h】

A Current Control Scheme with an Adaptive Internal Model for Robust Current Regulation and Torque Ripple Minimization in PMSM Vector Drive

机译：具有自适应内部模型的电流控制方案，用于PMSM矢量驱动中的鲁棒电流调节和转矩纹波最小化

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper addresses the problem of uncertainties in practical permanent magnet synchronous motors (PMSMs), and proposes a simple adaptive internal model within the current feedback structure as a solution. Due to the time varying nature and the high bandwidth property of uncertainties in a practical PMSM drive system, the internal model is simply chosen as the estimated uncertainty function, which adaptively varies with different operating conditions. Subsequently, the frequency modes of the uncertainty function are embedded in the control effort, and a robust current control performance is yielded. Furthermore, the inclusion of the estimated uncertainty function provides an efficient solution for torque ripple minimization in PMSM drives. This is because the frequency modes of the disturbances to be eliminated i.e., the flux harmonics, are included in the stable closed loop system. As a result, the controller can introduce a very high attenuation gains at different frequency modes corresponding to the flux harmonics. To provide a high bandwidth estimate of the uncertainty function, a simple adaptation law is derived, in the sense of Lyapunov functions, using the nominal current dynamics. Comparative evaluation results are presented to demonstrate the effectiveness of the proposed control scheme under different operating conditions.
机译：本文解决了实际永磁同步电动机（PMSM）中的不确定性问题，并提出了一种在电流反馈结构内的简单自适应内部模型作为解决方案。由于在实际的PMSM驱动系统中不确定性具有时变性和高带宽特性，因此内部模型被简单地选择为估计的不确定性函数，该函数会随不同的工作条件而自适应地变化。随后，将不确定性函数的频率模式嵌入控制工作中，并获得可靠的电流控制性能。此外，估计不确定性函数的包含为PMSM驱动器中的转矩脉动最小化提供了有效的解决方案。这是因为在稳定的闭环系统中包括了要消除的干扰的频率模式，即通量谐波。结果，控制器可以在与磁通谐波相对应的不同频率模式下引入很高的衰减增益。为了提供不确定性函数的高带宽估计，使用标称电流动态特性，从Lyapunov函数的意义上推导了一种简单的自适应定律。提出了比较评估结果，以证明所提出的控制方案在不同操作条件下的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号