基于模糊控制的化工装备PMSM速度辨识研究

发布时间：2019-06-21 04:10

【摘要】：内置式永磁同步电机(IPMSM)以其体积小、结构简单、功率密度高、可靠性好等优点,广泛应用于各种高性能调速场合。在化工制造方面也有广泛的应用,如石油精炼,金属材料,塑料合成,食品加工和催化制造等。永磁同步电机无传感器控制技术是当前交流调速领域的一个研究热点,它不仅可以节省成本,而且可以增加整个系统的鲁棒性。与其它转子位置估算方法相比较,高频信号注入法更适合于零速和低速场合。因此,本文提出了模糊控制结合高频信号的注入来研究对电机的控制。本文重点解决智能方法控制高频信号注入法在内置式永磁同步电机中转子位置估算的问题。本文首先介绍了内置式永磁同步电机的数学模型和矢量技术原理;分析了模型参考自适应(MRAS)应用于电机低速时的控制。并进一步分析旋转高频信号注入法对低速时电机控制的优势,在此优势上分别分析了 id=0、最大转矩/电流比(MTPA),和旋转高频信号注入法对永磁同步电机矢量控制的影响;模糊PI控制器较传统PI速度调节器的优点。其次,为得到转子精确的参数值,构建了模糊PI、同步轴系高通滤波器(SFF)、全维观测器及外差法的仿真结构图,并在MTALB/Simulink中搭建了四种无传感器矢量控制系统:模型参考自适应法(MRAS)、id=0高频信号注入、MTPA高频注入和模糊控制高频注入法;就此几种无传感器算法在永磁同步电机控制中进行仿真分析,结果表明高频信号注入法更适用于低速永磁电机矢量控制。针对电机控制系统的速度环,因负载直接作用在电机而产生的扰动,如果仅采用PI控制,很难满足系统的快速响应需求。本文采用模糊PI高频信号注入法,并在永磁同步电机中进行了仿真验证。仿真结果表明了模糊控制的高频载波注入法估算转子位置的误差有所减小并且提高系统的快速性。
[Abstract]:Built-in permanent magnet synchronous motor (IPMSM) is widely used in various high performance speed regulation occasions because of its small size, simple structure, high power density, good reliability and so on. It also has a wide range of applications in chemical manufacturing, such as petroleum refining, metal materials, plastic synthesis, food processing and catalytic manufacturing. Sensorless control technology of permanent magnet synchronous motor (PMSM) is a hot research topic in the field of AC speed regulation at present. It can not only save cost, but also increase the robustness of the whole system. Compared with other rotor position estimation methods, the high frequency signal injection method is more suitable for zero speed and low speed situations. Therefore, fuzzy control combined with high frequency signal injection is proposed to study the control of motor. In this paper, the problem of rotor position estimation in built-in permanent magnet synchronous motor (PMSM) controlled by intelligent method of high frequency signal injection is solved. In this paper, the mathematical model and vector technology principle of built-in permanent magnet synchronous motor (PMSM) are introduced, and the application of model reference adaptive (MRAS) to motor control at low speed is analyzed. The advantages of rotating high frequency signal injection method on motor control at low speed are further analyzed, and the effects of id=0, maximum torque / current ratio (MTPA), and rotating high frequency signal injection method on vector control of permanent magnet synchronous motor (PMSM) are analyzed, and the advantages of fuzzy PI controller over traditional PI speed regulator are analyzed respectively. Secondly, in order to obtain the accurate parameters of rotor, the simulation structure diagram of (SFF), full-order observer and heterodyne method for fuzzy PI, synchronous shafting high-pass filter is constructed, and four sensorless vector control systems are built in MTALB/Simulink: model reference adaptive (MRAS), id=0 high frequency signal injection, MTPA high frequency injection and fuzzy control high frequency injection; Several sensorless algorithms are simulated and analyzed in permanent magnet synchronous motor (PMSM) control. The results show that the high frequency signal injection method is more suitable for vector control of low speed permanent magnet motor (PMSM). For the speed loop of the motor control system, the disturbance caused by the direct action of the load on the motor, if only PI control is used, it is difficult to meet the fast response requirements of the system. In this paper, the fuzzy PI high frequency signal injection method is used and verified by simulation in permanent magnet synchronous motor (PMSM). The simulation results show that the error of estimation of rotor position by high frequency carrier injection method based on fuzzy control is reduced and the rapidity of the system is improved.
【学位授予单位】：上海应用技术大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM341;TP273

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