首页> 外文会议>IEEE Energy Conversion Congress and Exposition >Enhanced rotor position/speed observer for sensorless control of salient-pole permanent-magnet synchronous machines
【24h】

Enhanced rotor position/speed observer for sensorless control of salient-pole permanent-magnet synchronous machines

机译:增强的转子位置/速度观测器,用于凸极永磁同步电机的无传感器控制

获取原文

摘要

Reliable rotor position/speed estimation is one of the key issues in the position/speed sensorless control of permanent-magnet synchronous machines (PMSM). In this paper, a quasi-sliding-mode observer (QSMO) with an online observer parameter adaption scheme is employed to estimate the extended electromotive force of a salient-pole PMSM. Due to machine parameter variations, inverter nonlinearities and digital delays, a pulsating position estimation error or even instability might be observed in the closed-loop sensorless control during extreme loading conditions. This work proposes an enhanced speed/position estimator, which utilizes a phase-locked loop (PLL)-type observer with a proportional-integral plus integral structure. To further mitigate the pulsating position estimation error and improve the transient stability, an online phase compensator using the γ-axis (i.e., the estimated d-axis) current tracking error is proposed to compensate the rotor position estimation error of the PLL-type observer. Experimental results are provided to validate the effectiveness of the proposed rotor position/speed estimator and the sensorless control system for a salient-pole PMSM.
机译:可靠的转子位置/速度估算是永磁同步电机(PMSM)的位置/速度无传感器控制中的关键问题之一。本文采用具有在线观测器参数自适应方案的准滑模观测器(QSMO)来估算凸极PMSM的扩展电动势。由于机器参数的变化,逆变器的非线性和数字延迟,在极端负载条件下,在无传感器的闭环控制中可能会观察到脉动位置估计误差甚至不稳定。这项工作提出了一种增强的速度/位置估计器,该估计器利用了具有比例积分加积分结构的锁相环(PLL)型观察器。为了进一步减轻脉动位置估计误差并改善瞬态稳定性,提出了一种使用γ轴(即估计的d轴)电流跟踪误差的在线相位补偿器来补偿PLL型观测器的转子位置估计误差。提供了实验结果,以验证所提出的转子位置/速度估计器和凸极PMSM的无传感器控制系统的有效性。

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