改进了MRAS观察器,提供了旋转器流量校正条款和基于FLC的适应定律,用于无传感器感应电机驱动器
Mohamed S Zaky1, Mohamed K Metwaly2
1Department of Electrical Engineering, College of Engineering, Northern Border University, 1321, Arar, Saudi Arabia. mohamed.zaky@nbu.edu.sa.
Scientific reports
|April 28, 2025
概括
这项研究引入了一种改进的无传感器感应电机驱动观察器,使用转子流量校正来提高速度准确性. 新的基于模糊逻辑控制器的方法确保了稳定性,特别是在低速和零速时.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
背景情况:
- 无传感器感应电机驱动器 (SIMD) 需要准确的速度估计.
- 传统模型参考适应系统 (MRAS) 观察者在低速度纯集成方面面临挑战.
研究的目的:
- 为SIMDs开发一个改进的MRAS速度观察器.
- 提高速度估计的准确性和稳定性,特别是在低速和零速时.
主要方法:
- 实现了一个新的MRAS观察器,使用dq定态电流和估计错误.
- 嵌入式转子流动力学作为调整条款,以估计定子电流.
- 使用模糊逻辑控制器 (FLC) 进行适应机制,而不是PI控制器.
- 使用Matlab/Simulink模拟和基于DSP-DS1103的实验室原型验证了该方法.
主要成果:
- 与传统的MRAS系统相比,拟定观察员的准确性和稳定性得到了提高.
- 在四个象限运行中观察到有效的性能,特别是在非常低的和零速度.
- FLC增强了观察者的适应能力和稳定性.
结论:
- 改进的基于定子电流的MRAS观察器与FLC对于无传感器感应电机驱动器非常有效.
- 该技术克服了低速纯集成的局限性,提供可靠的操作.
- 这一进步有助于在没有转速传感器的情况下更精确,更稳健地控制感应电机.
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