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标题：基于分数阶自适应转速估计的永磁同步电机无传感器控制研究 |
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作者：高远, 刘传国, 文家燕，等 |
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| 2015年第5期 访问次数：293次 |
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摘要：对电机转速的精确估计是实现永磁同步电机无传感器控制的一个重要关键。研究根据永磁同步电机数学模型和系统稳定性理论，提出一种基于模型参考的分数阶自适应转速估计方法。研究结果表明，相比整数阶情形，即使在负载跳变、大范围调速和电机参数不准确的情况下，该方法均能获得更为精准的转速估计值，且可进一步提高永磁同步电机无传感器控制系统的速度跟踪控制性能及鲁棒性。
关键词：永磁同步电机；无传感器控制；分数阶；自适应估计
Abstract: For realizing the sensorless control of permanent synchronous motor(PMSM) drive system, it is very important to estimate the information of speed online. In this paper, from the mathematical model of PMSM and the stability theory of the dynamical system, a fractionalorder adaptive estimation scheme based on model reference was presented, which was used to estimate the speed. The simulation results demonstrate that under the conditions of big range speed, load jump and inaccurate system parameters, comparing the integralorder situation, this fractionalorder adaptive method can estimate the speed more accurately, and also improve the speed tracking control performance and robustness of sensorless PMSM driving system.
Key words: PMSM; sensorless control; fractionalorder; adaptive estimation |
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