基于霍尔传感器的永磁同步电机高精度转子位置观测

doi:10.19595/j.cnki.1000-6753.tces.181395

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Abstract In order to obtain a higher precision rotor position of permanent magnet synchronous motor, a new rotor position estimation algorithm is proposed based on low-cost switching Hall position sensor. When the motor runs at low speed, the improved first-order acceleration algorithm is used to introduce the quadrature-axis current to estimate the rotor acceleration and the rotor position. When the motor runs at medium or high speed, the rotor position output by the Hall position sensor is used to perform the piecewise linear correction on the rotor position estimated by the improved sliding mode observer method. Then the linear weighting method is used to obtain the estimated rotor position and rotor angular velocity by the improved first-order acceleration algorithm and the improved sliding mode observer method. The experimental results show that the new estimation algorithm can reduce the influence of the hysteresis of the first-order acceleration algorithm and the installation error of the Hall position sensor. It can also accurately estimate the rotor position of the motor in a wide speed range and achieve high-performance control of the vector control system of the permanent magnet synchronous motor.

Key words： Permanent magnet synchronous motor (PMSM) Hall position sensor new rotor position estimation algorithm improved first order acceleration algorithm improved sliding mode obvserver method

Received: 13 August 2018 Published: 28 November 2019

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TM301

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	Zhang Yi
	Zhang Mingming
	Wei Haifeng
	Li Yuanjiang
	Liu Weiting

Cite this article:

Zhang Yi,Zhang Mingming,Wei Haifeng等. High Precision Rotor Position Observation of Permanent Magnet Synchronous Motor Based on Hall Sensors[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4642-4650.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181395 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I22/4642

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