基于谐振改进型单自由度自抗扰控制器的PMSM转速波动抑制策略
Speed Fluctuations Suppression Strategy for PMSM Based on Resonance-improved Single-degree-of-freedom Active Disturbance Rejection Controller
田明赫 1王勃 1于泳 1徐殿国1
作者信息
- 1. 哈尔滨工业大学电气工程及自动化学院,黑龙江省 哈尔滨市 150001
- 折叠
摘要
高性能系统期望电机输出平滑且稳定的转速.然而,永磁同步电机驱动系统的转速环遭受多源扰动影响,导致电机输出转速呈现非周期和周期波动.为了抑制转速环中多源扰动,该文提出一种谐振改进型单自由度自抗扰控制器(active disturbance rejection controller,ADRC).单自由度ADRC保留了传统ADRC对非周期扰动的抑制能力.在此基础上,该文采用准谐振控制器拓展单自由度 ADRC 观测器在特定频率处的带宽,以进一步提高单自由度 ADRC 对周期扰动的抑制能力.因此,所提方法可以同时抑制转速的非周期和周期波动进而提高转速的控制性能.此外,该文利用Nyquist稳定判据分析所提方法的稳定性.最后,通过实验验证所提方法的有效性.
Abstract
High-performance systems expect smooth and steady speed from the motor.However,the speed loop of permanent magnet synchronous motor(PMSM)drives is affected by multi-source disturbances,resulting in aperiodic and periodic fluctuations in the output speed.To suppress the multi-source disturbances in the speed loop,this paper proposes a resonance-improved single-degree-of-freedom active disturbance rejection controller(ADRC).The single-degree-of-freedom ADRC retains the capability of the traditional ADRC to suppress the aperiodic disturbance.Based on this,the quasi-resonant controller is used to expand the bandwidth of the observer of the single-degree-of-freedom ADRC at the specific frequency to further improve the capability of the single-degree-of-freedom ADRC to suppress the periodic disturbance.Therefore,the proposed method can simultaneously suppress the aperiodic and periodic speed fluctuations to improve the speed control performance.In addition,the stability of the proposed method is analyzed using the Nyquist stability criterion.Finally,the effectiveness of the proposed method is verified by experiments.
关键词
永磁同步电机/转速控制/单自由度自抗扰控制器/多源扰动抑制/准谐振控制器Key words
permanent magnet synchronous motor(PMSM)/speed control/single-degree-of-freedom active disturbance rejection controller/multi-source disturbances suppression/quasi-resonant controller引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据