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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Saliency-Based Sensorless Control for SynRM Drives With Suppression of Position Estimation Error
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Saliency-Based Sensorless Control for SynRM Drives With Suppression of Position Estimation Error

机译：基于显着性的SynRM驱动器无传感器控制，具有位置估计误差的抑制

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摘要

Pulsating high-frequency (HF) signal injection is a common saliency-based sensorless control method applied for synchronous reluctance motor (SynRM) drives. However, the accuracy of the rotor position estimation deteriorates due to severe cross-coupling effect and voltage fluctuations. To solve this problem, a measured reference frame HF voltage injection (MHFVI) method is proposed in this paper. A total of two discontinuous pulsating square-wave voltage signals are injected along with two measured axes, and position information is extracted with a cross-coupling factor (CCF) introduced, which can inherently account for the estimation error caused by the cross-coupling effect. The signal processing scheme of the proposed MHFVI method is further developed to be robust to voltage errors, meanwhile has less fluctuation in the position estimation error. The position estimation error is investigated and analyzed based on the finite element analysis results and the introduced CCF is calculated based on the SynRM current-flux characteristics models. Finally, the proposed method is verified by experiments on a 3-kW SynRM drive platform.
机译：脉动高频（HF）信号注入是一种常见的基于显着性的无传感器控制方法，适用于同步磁阻电机（SynRM）驱动器。但是，转子位置估计的精度由于严重的交叉耦合效应和电压波动而劣化。为了解决这个问题，本文提出了一种测量参考框架高频电压注入（MHFVI）的方法。总共将两个不连续的脉动方波电压信号与两个测量轴一起注入，并通过引入交叉耦合因子（CCF）提取位置信息，这可以固有地解决由交叉耦合效应引起的估计误差。所提出的MHFVI方法的信号处理方案被进一步开发以对电压误差具有鲁棒性，同时位置估计误差的波动较小。根据有限元分析结果调查和分析位置估计误差，并根据SynRM电流通量特性模型计算引入的CCF。最后，通过在3kW SynRM驱动平台上进行的实验验证了所提出的方法。

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