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首页> 外文会议>International Conference on Power, Instrumentation, Control and Computing >Fractional order PLL based sensorless control of PMSM with sliding mode observer
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Fractional order PLL based sensorless control of PMSM with sliding mode observer

机译：基于PMSM的基于分数PLG的PMSM与滑模观测器的无传感器控制

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For an accurate and effective sensorless control of permanent magnet synchronous machine, the position and speed information have to be accurately estimated. Sliding Mode Observer (SMO) is a robust technique used for the estimation of back-EMF. Due to the usage of discontinuous function, SMO has chattering effect on back EMF estimation and a filter is used to limit this. But the usage of filter increases delay in determining the rotor position thereby affecting accuracy. In order to avoid this delay, a new technique based on fractional order is proposed. In the proposed technique, conventional Phase Locked Loop is replaced with the Fractional Order Phase Locked Loop (FO-PLL) for estimation of rotor speed and position. FO-PLL provides an extra degree of freedom and better performance is achieved by proper selection of the fractional order coefficient. The simulation results show the effectiveness of the proposed technique.
机译：对于永磁同步机的准确和有效的无传感器控制，必须准确地估计位置和速度信息。滑动模式观察者（SMO）是一种用于估计后EMF的鲁棒技术。由于使用不连续功能，SMO对反EMF估计的抖动效果，并且滤波器用于限制这一点。但是滤波器的用法增加了确定转子位置，从而影响精度。为了避免这种延迟，提出了一种基于分数顺序的新技术。在所提出的技术中，传统的相位锁定环用分数阶阶段锁定环（FO-PLL）替换，以估计转子速度和位置。 FO-PLL provides an extra degree of freedom and better performance is achieved by proper selection of the fractional order coefficient.仿真结果表明了所提出的技术的有效性。

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