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A Novel PMSM Hybrid Sensorless Control Strategy for EV Applications Based on PLL and HFI

机译:基于pLL和HFI的电动汽车应用新型pmsm无混合传感器控制策略

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摘要

In this paper, a novel hybrid sensorless control strategy for Permanent Magnet Synchronous Machine (PMSM) drives applied to Electric Vehicles (EV) is presented. This sensorless strategy covers the EV full speed range and also has speed reversal capability. It combines a High Frequency Injection (HFI) technique for low and zero speeds, and a Phase-Locked Loop (PLL) for the medium and high speed regions. A solution to achieve smooth transitions between the PLL and the HFI strategies is also proposed, allowing to correctly detect the rotor position polarity when HFI takes part. Wide speed and torque four-quadrant simulation results are provided, which validate the proposed sensorless strategy for being further implemented in EV.
机译:在本文中,提出了一种适用于电动汽车(EV)的永磁同步电机(PMSM)驱动器的新型混合无传感器控制策略。这种无传感器策略涵盖了电动汽车的全速范围,并且具有速度反转功能。它结合了用于低速和零速的高频注入(HFI)技术以及用于中速和高速区域的锁相环(PLL)。还提出了一种在PLL和HFI策略之间实现平滑过渡的解决方案,从而允许在HFI参与时正确检测转子位置极性。提供了广泛的速度和扭矩四象限仿真结果,这些结果验证了拟议的无传感器策略在电动汽车中的进一步应用。

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