基于滑模控制的SR电机间接位置检测技术研究

发布时间：2018-03-31 07:08

本文选题：开关磁阻电机　切入点：无位置传感器控制　出处：《南京航空航天大学》2016年硕士论文

【摘要】：开关磁阻电机(SRM,Switched Reluctance Motor)是一种新型的机电一体化的调速系统,其由双凸极的磁阻电机、控制电路、功率开关电路以及检测系统组成,具有结构简单、运行可靠、控制方式灵活、制造费用低、可以在恶劣的环境下工作等优点。此外,它还具有良好的调速性能以及强大的容错能力,其应用前景十分广阔。然而位置传感器的引入,使得电机的运行环境受到了限制,电机制造费用增加,并且增大了电机的体积。因此,开关磁阻电机的无位置传感器技术成为了开关磁阻电机研究方向中的一个热点问题。针对以上所提及的问题,本文对开关磁阻电机无位置传感器控制方面进行了研究,提出了一种新的基于滑模观测器的开关磁阻电机无位置传感器控制方法,与五点法磁链模型相结合,实现对开关磁阻电机转子位置的间接检测。该方法不需要附加额外的硬件设备,算法比较简单,容易实现,且其抗扰动的能力比较好。文章中首先针对此方法,通过仿真软件MATLAB搭建出12/8极开关磁阻电机的SIMULINK仿真模型。在该仿真模型中采用双闭环的控制系统。根据所搭建的仿真模型,对所提方法进行了一系列的仿真分析。仿真结果表明,这种基于滑模观测器的开关磁阻电机无位置传感器控制方法可以有效地实现对转子位置以及转速的检测,测量误差较小,系统的鲁棒性能较好。然后在以dSPACE实时仿真系统作为控制核心搭建的三相12/8极开关磁阻电机的实验平台上,首先对五点法磁链模型进行实验研究,然后再根据文中所提的方法进行一系列的实验,以验证所提方法的有效性以及可行性。
[Abstract]:Switched reluctance motor (SRM Switched, Reluctance Motor) is a new type of speed control system of electromechanical integration, which is composed of double salient reluctance motor, control circuit, power switch circuit and component detection system has the advantages of simple structure, reliable operation, flexible control, low manufacturing cost, can work in harsh environment etc.. In addition, it also has good control performance and strong fault tolerant ability, and has very broad application prospects. However, the position sensor is introduced, the running environment of the motor is limited, motor manufacturing costs increase, and increase the volume of the motor. Therefore, SRM sensorless technology has become a hot topic the problem research of switched reluctance motor. According to the above mentioned problems, this paper studied the sensorless control of switched reluctance motor is proposed A new kind of Switched Reluctance Motor Based on sliding mode observer sensorless control methods, combined with the five point method of flux model, realize the indirect detection of switched reluctance motor rotor position. The method does not need additional hardware added, the algorithm is simple, easy to realize, and the ability of anti disturbance is better this article first. For this method, through the simulation software MATLAB to build a simulation model of SIMULINK 12/8 pole switched reluctance motor. The double loop control system in the simulation model. According to the simulation model is built, the method is tested by analysis of a series of simulations. The simulation results show that this kind of position sensorless control the method can effectively realize the rotor position and speed detection based on switched reluctance motor sliding mode observer, smaller measurement error, the robust performance of the system is good. Then based on D The real-time simulation system of SPACE three-phase 12/8 control core to build experimental platform of switched reluctance motor, first carried out the experimental study on five point method, flux model, and then according to the method proposed in this paper are a series of experiments to verify the validity of the proposed method and the feasibility.

【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM352

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