| 滑模观测器及其在无机械传感器永磁同步电机驱动系统的应用 |
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| 引用本文： | 胡军,朱东起,高景德.滑模观测器及其在无机械传感器永磁同步电机驱动系统的应用[J].清华大学学报(自然科学版),1997(1). |
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| 作者姓名： | 胡军 朱东起 高景德 |
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| 作者单位： | 清华大学电机工程与应用电子技术系 |
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| 摘 要： | 为了取消永磁同步电机调速系统的机械传感器，电机转子的速度和位置通过测量定子电流和电压来估计，估计算法采用滑模观测器。采用逐段线性化处理技术，提出了一种滑模观测器在非线性系统中的新设计方法。根据这一方法，给出了用于永磁同步电机状态估计的具体算法。此算法简单，易于用数字计算机实现无机械传感器交流调速。通过数字仿真和实验测试，验证了所提算法的可行性。
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| 关 键 词： | 滑模观测器 永磁同步电机 状态估计 机械传感器 |
Sliding observer and its application to the sensorless PMSM drive |
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| Hu Jun,Zhu Dongqi,Gao Jingde.Sliding observer and its application to the sensorless PMSM drive[J].Journal of Tsinghua University(Science and Technology),1997(1). |
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| Authors: | Hu Jun Zhu Dongqi Gao Jingde |
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| Institution: | Hu Jun,Zhu Dongqi,Gao Jingde Department of Electrical Engineering,Tsinghua University,Beijing 100084 |
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| Abstract: | To eliminate the mechanical sensors of the permanent magnet synchronous motor (PMSM) drive, the rotor speed and position of the motor are estimated by measuring stator currents and voltages. The sliding observer is employed for the state estimation. Based on the idea of linearizing the system peicewisely, a new method of designing the sliding observer for nonlinear systems is proposed in the paper. The algorithm for estimating states of the PMSM is presented, which is simple in structure and easy to be implemented in sensorless drive by using a computor. The digital simulations and experimental tests are carried out to verify the feasibility of the proposed method. |
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| Keywords: | sliding observer PMSM (permanent magnet synchronous motor) state estimation mechanical sensor |
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