永磁同步电机调速系统的复合控制研究

发布时间：2018-04-13 10:37

本文选题：永磁同步电机 + 矢量控制　；参考：《东北大学》2014年硕士论文

【摘要】：近些年来,随着相关学科如电力电子技术、计算机技术、永磁材料以及控制理论的发展,交流调速技术有了长足的发展,由于永磁同步电机(PMSM)具有气隙密度高、转矩/惯量比大、转矩脉动小等优点,永磁同步电机调速系统引起了技术开发人员的关注。本文在id＝0矢量控制和空间电压矢量脉宽调制基础上,研究了复合控制策略并通过在永磁同步电机调速系统上的仿真结果,验证了复合控制的可行性和有效性。本文首先介绍了永磁同步电机的数学模型以及在三种坐标系下变换关系；分析矢量控制控制原理,确定使用id＝0矢量控制方案；分析空间电压矢量脉宽调制(SVPWM)技术,并且在Simulink环境下建立了基于PI控制永磁同步电机调速系统的仿真模型。然后针对永磁同步电机调速系统设计了基本模糊控制器以及量化比例因子自调整的模糊控制器,并对两者的控制效果进行了仿真比较。最后为永磁同步电机调速系统设计了模糊PI控制器,并将量化比例因子自调整的模糊控制器与模糊PI控制技术结合起来设计了一种模糊-模糊PI复合控制器,并对其进行了仿真分析。对调速系统的控制效果可以看到,复合控制具有两种控制的优点,既具有模糊控制灵活及鲁棒性强的特点,又具有模糊PI控制精度高的特点。在论文最后,对全文的工作做了总结和展望,指出了本文所做的工作以及研究中存在的问题,有待今后继续研究。
[Abstract]:In recent years, with the development of related subjects such as power electronics technology, computer technology, permanent magnet material and control theory, AC speed regulation technology has made great progress, because of the high air gap density of permanent magnet synchronous motor (PMSM).With the advantages of large torque / inertia ratio and low torque ripple, the permanent magnet synchronous motor (PMSM) speed control system has attracted the attention of technical developers.On the basis of id=0 vector control and space voltage vector pulse width modulation, this paper studies the compound control strategy and verifies the feasibility and effectiveness of the compound control through the simulation results on the PMSM speed control system.This paper first introduces the mathematical model of permanent magnet synchronous motor and its transformation relationship in three coordinate systems, analyzes the principle of vector control, determines the use of id=0 vector control scheme, and analyzes the space voltage vector pulse width modulation (SVPWM) technology.The simulation model of PMSM speed regulation system based on Pi control is established in Simulink environment.Then, the basic fuzzy controller and the fuzzy controller with quantized scale factor self-adjusting are designed for the PMSM speed control system, and the simulation results are compared.Finally, a fuzzy Pi controller is designed for the PMSM speed control system, and a fuzzy-fuzzy Pi composite controller is designed by combining the fuzzy controller with fuzzy Pi control technology.And it is simulated and analyzed.It can be seen from the control effect of the speed regulating system that the compound control has the advantages of both the flexibility and robustness of fuzzy control and the high precision of fuzzy Pi control.At the end of the paper, the work of this paper is summarized and prospected, and the work done in this paper and the problems existing in the research are pointed out, which need to be further studied in the future.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM341

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