This article aims to provide a more credible control scheme or a fault-tolerant control strategy for permanent magnet synchronous motor (PMSM) drives without a position sensor. Considering that, a position sensorless control strategy is proposed using only one phase current sensor. First, the mathematical model of full-order sliding mode observer (FSMO) is established in the stationary reference frame. Second, the coordinate transformation and notch filter (NF) are carried out for the only measurable phase current to calculate the current error information, which is needed by the FSMO. Third, a phase-locked loop (PLL) is employed to estimate the position. The motor parameter variation effect on the position estimation is evaluated. The observer’s stability and parameter design method are analyzed through the Lyapunov theory. The proposed method utilizes a single current sensor to reconstruct the three-phase current and position signals, which improves the economy of inverters and provides the possibility of fault-tolerant control with few sensors. Compared with existing methods, it is simpler to implement and does not require changing the power unit structure. Finally, experiments have shown that the proposed method is comparable to the full-current-sensor method in terms of position estimation and control performance. Compared to the traditional method, the proposed method has higher accuracy of position estimation and better dynamic and steady-state control performance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Position Sensorless Control Strategy for PMSM Drives With Single-Phase Current Sensor


    Contributors:
    Xu, Guanda (author) / Xiao, Fei (author) / Lian, Chuanqiang (author)


    Publication date :

    2024-09-01


    Size :

    9739121 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Sensorless Predictive Control With Fusion Position Estimation Technology for PMSM Drives

    Zhou, Guangzu / Sun, Le / Qian, Linfang et al. | IEEE | 2024


    Speed Sensor Fault Tolerant PMSM Machines: From Position-Sensorless to Sensorless Control

    Verrelli C. M. / Bifaretti S. / Carfagna E. et al. | BASE | 2019

    Free access

    Current sensorless predictive control based on extended kalman filter for pmsm drives

    Li, Yingqiang / Yang, Ming / Long, Jiang et al. | IEEE | 2017



    Four Consecutive Samples Based Sensorless Control for PMSM Drives

    Wang, Haoran / Fan, Mingdi / Xiao, Yang et al. | IEEE | 2024