基于谐振补偿策略的少稀土类齿轭磁势互补型双凸极永磁电机的驱动控制研究

发布时间：2019-02-11 12:48

【摘要】：该文以少稀土齿轭磁势互补型双凸极永磁电机为研究对象,提出一种有效的谐振补偿控制策略,以实现转速脉动的抑制和电机驱动性能的提升。首先,对电机空载反电动势和定位力矩进行谐波频谱分析,并根据分析结果,针对电机转矩方程和运动方程的数学模型进行进一步推导。然后,在电机转速脉动呈近似正弦变化特点的基础上,提出一种将PI控制器与谐振控制器相结合的电流调节方法并确定控制系统的改进方案,尽可能地提升转速脉动抑制的效果。在Matlab中搭建基于谐振补偿控制策略的系统仿真模型,并针对补偿策略实施前后的转速脉动特性进行仿真分析。使用加工的原理样机,对仿真分析结果进行相应的实验验证。最后,仿真分析和实验结果均表明,所提出的谐振补偿控制策略可以有效的抑制电机的转速脉动,提升电机运行性能。
[Abstract]:In this paper, an effective resonant compensation control strategy is proposed for the doubly salient permanent magnet motor with complementary magnetic potential of less rare earth tooth yoke, which can suppress the pulsation of speed and improve the driving performance of the motor. Firstly, the harmonic spectrum analysis of no-load backEMF and positioning torque is carried out. According to the analysis results, the mathematical models of motor torque equation and motion equation are further deduced. Then, on the basis of the characteristic that the motor speed pulsation is approximately sinusoidal, a current regulation method combining the PI controller with the resonant controller is proposed and the improvement scheme of the control system is determined. As far as possible to improve the speed pulsation suppression effect. The system simulation model based on resonant compensation control strategy is built in Matlab, and the characteristics of rotational speed pulsation before and after the implementation of the compensation strategy are simulated and analyzed. Using the principle prototype, the simulation results are verified by experiments. Finally, the simulation analysis and experimental results show that the proposed resonant compensation control strategy can effectively suppress the speed pulsation of the motor and improve the performance of the motor.
【作者单位】：江苏大学电气信息工程学院;
【基金】：国家自然科学基金项目(51477069,51377073) 江苏省高校优势学科资助项目~~
【分类号】：TM351

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