电梯曳引系统中开关磁阻电动机低脉动调速系统研究

发布时间：2018-11-27 08:26

【摘要】：电梯曳引系统的电动机是电梯系统中的关键动力来源，使用更安全、稳定、高效、高性价比的电动机一直是电梯曳引系统设计的目标。开关磁阻电动机作为一种新型的特种电动机，具有结构简单、效率高、制造成本低等特点，其构成的调速系统对比传统交、直流调速系统很有优势。但是开关磁阻电动机调速系统的转矩脉动制约着其的广泛应用，抑制转矩脉动是开关磁阻电动机的研究热点。本文结合电梯曳引系统的转速、转矩特点，提出把开关磁阻电动机应用到电梯曳引系统的研究方向，并重点研究如何更好抑制转矩脉动，以实现应用到电梯曳引系统的目标。本文围绕研究设计电梯曳引系统中使用的低脉动开关磁阻电动机调速系统的研究目标，首先全面深入地学习国内外关于电梯曳引系统和开关磁阻电动机的相关文献，分析其研究现状和研究难点。在此基础上，结合电梯曳引系统的性能要求和开关磁阻电动机的工作原理、性能特点，研究几种抑制转矩脉动的控制策略，并综合提出一种基于RBF神经网络辨识模型的瞬时转矩分配控制策略，并在Matlab/Simulink软件平台上搭建仿真模型对控制策略的性能进行仿真分析。在理论研究、模型仿真结果的基础上，以一台0.37KW四相8/6极开关磁阻电动机为样机，设计以德州仪器TMS320F28035控制芯片为核心的开关磁阻电动机控制驱动器，，并使用AD2S1210芯片和旋转变压器作为位置速度传感器。最后利用根据设计制作好的样机控制驱动器进行实验。实验分析结果表明，提出的控制策略有效的抑制转矩脉动，为开关磁阻电动机在电梯曳引系统中的应用起到的积极作用。
[Abstract]:The motor of the elevator traction system is the key power source in the elevator system, and the use of more safe, stable, efficient and cost-effective motor is always the goal of the elevator traction system design. As a new type of special motor, switched reluctance motor (SRM) has the advantages of simple structure, high efficiency and low manufacturing cost. However, the torque ripple of switched reluctance motor (SRM) speed regulation system restricts its wide application, and restraining torque ripple is the research hotspot of SRM. Based on the characteristics of rotating speed and torque of elevator traction system, this paper puts forward the research direction of applying switched reluctance motor to elevator traction system, and focuses on how to restrain torque ripple better in order to realize the goal of applying to elevator traction system. This paper focuses on the research and design of the low pulsating switched reluctance motor speed regulation system used in the elevator traction system. First of all, the related literature about the elevator traction system and the switched reluctance motor at home and abroad is studied thoroughly and thoroughly. The present situation and difficulties of the research are analyzed. On this basis, combined with the performance requirements of elevator traction system and the working principle and performance characteristics of switched reluctance motor, several control strategies to restrain torque ripple are studied. An instantaneous torque allocation control strategy based on RBF neural network identification model is proposed, and the simulation model is built on the Matlab/Simulink software platform to simulate the performance of the control strategy. On the basis of theoretical research and model simulation results, a 0.37KW four-phase 8 / 6 pole switched reluctance motor is used as a prototype, and a switched reluctance motor control driver based on Texas Instruments TMS320F28035 control chip is designed. AD2S1210 chip and rotary transformer are used as position speed sensor. Finally, the experiment is carried out by using the designed prototype to control the driver. The experimental results show that the proposed control strategy can effectively suppress torque ripple and play a positive role in the application of switched reluctance motor in elevator traction system.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU857;TM352

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