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Speed-sensorless direct torque and flux control of PMSM based on extended Kalman filter using space vector modulation

机译:基于空间矢量调制的扩展卡尔曼滤波器的永磁同步电机无速度传感器直接转矩和磁通控制

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摘要

In recent years direct torque control (DTC) has become an alternative to the well known vector control especially for permanent magnet synchronous motor (PMSM). But it presents a problem of field linkage and torque ripple. In order to solve this problem the conventional DTC is combined with space vector pulse width modulation (SVPWM). This control theory has achieved great success in the control of PMSM. The main objective of this paper gives us an introduction of the SVPWM-DTC control theory of PMSM which associated to an extended Kalman filter is order to estimate the rotor speed. That has been simulating on each part of the system via Matlab/Simulink based on the mathematical modeling. Moreover, the outcome of the simulation proved that the improved SVPWM-DTC of PMSM has a good dynamic and static performance.
机译:近年来,直接转矩控制(DTC)已成为众所周知的矢量控制的替代方法,尤其是对于永磁同步电动机(PMSM)。但这带来了磁场联动和转矩脉动的问题。为了解决这个问题,传统的DTC与空间矢量脉冲宽度调制(SVPWM)相结合。该控制理论在PMSM的控制中取得了巨大的成功。本文的主要目的是向我们介绍PMSM的SVPWM-DTC控制理论,该理论与扩展卡尔曼滤波器相关,目的是估计转子速度。通过数学模型,已经通过Matlab / Simulink在系统的每个部分上进行了模拟。此外,仿真结果证明,改进的永磁同步电机SVSV-DTC具有良好的动态和静态性能。

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