This article presents a novel approach to the dc standstill measurement of flux linkage and inductance of a synchronous reluctance machine. In the existing standstill test to measure the flux linkage of a machine, a pulsed voltage is applied to the machine in open loop. The flux-linkage characteristics are computed using the measured response. This article discusses the limitations of the voltage pulse-based method, and a current control based method is proposed to overcome these limitations. In the proposed method, a pulsed current in closed loop is applied to the machine at standstill (shaft locked). The major benefit is that the time response of the machine can be modified by properly tuning the controller parameters such that the number of measurement samples available during the transient is improved. Thus, the measurement process can be programmed in a real-time processor to automate the measurement process. The automation leads to bypassing the recording and offline processing of huge datasets. This article also proposes a method to automatically tune the current controllers required in the measurement process. The proposed method is verified by an experiment performed on a 7.5-hp machine.

中文翻译：

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同步磁阻电机磁链测量的自动电流控制方法


本文提出了一种对同步磁阻电机的磁链和电感进行直流静止测量的新颖方法。在现有的测量机器磁链的静止测试中，脉冲电压以开环方式施加到机器上。使用测量的响应计算磁通链特性。本文讨论了基于电压脉冲的方法的局限性，并提出了基于电流控制的方法来克服这些局限性。在所提出的方法中，闭环脉冲电流施加到处于静止状态（轴锁定）的机器。主要好处是可以通过适当调整控制器参数来修改机器的时间响应，从而提高瞬态期间可用的测量样本的数量。因此，可以在实时处理器中对测量过程进行编程以使测量过程自动化。自动化导致绕过巨大数据集的记录和离线处理。本文还提出了一种自动调整测量过程中所需电流控制器的方法。所提出的方法通过在 7.5 马力机器上进行的实验得到验证。