基于混合观察器的内部永磁同步电机在全速域的无传感器控制
Ying Jie Gao1, Shu Jia Yan2, Mei Song Tong3
1School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
Scientific reports
|September 17, 2024
概括
本研究介绍了内部永磁同步电机 (IPMSM) 的新算法,以实现所有速度的平稳运行. 通过融合高频内射和反向EMF数据,它增强了电机控制和稳定性.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 机器人技术 机器人技术 机器人技术
背景情况:
- 内部永磁同步电机 (IPMSMs) 面临着在单个观察员的情况下实现平稳启动和速度过渡的挑战.
- 现有的方法在零-低到中高速度范围内面临性能限制.
研究的目的:
- 开发IPMSM的全速范围控制算法,确保从启动到高速的顺利运行.
- 解决IPMSM控制中单个观察员系统的局限性.
主要方法:
- 一个混合控制算法融合脉冲高频注入和背部电机力 (EMF) 位置错误信息.
- 使用方形波高频信号注入用于低速转子位置错误检测.
- 采用双二次通用集成器用于低速角频输出.
- 实现一个更高阶的滑动模式观察器用于高速旋转器位置错误估计.
- 一个融合策略,以整合位置信息,确保稳定的电机运行.
主要成果:
- 拟议的算法可以在IPMSM中实现平稳的启动和速度过渡.
- 由于优化过,减少了相位移和改进了控制带宽.
- 通过融合的旋转器位置信息来提高系统稳定性.
- 在0.2kW的IPMSM无传感器矢量控制系统上验证算法的准确性.
结论:
- 合并算法有效地克服了IPMSM全速范围控制单个观察者的局限性.
- 该方法提供了一个强大的解决方案,使电机运行平稳,稳定,特别是在具有挑战性的速度范围内.
- 这种方法为IPMSM的无传感器向量控制提供了显著的改进.
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