永磁同步曳引机驱动控制关键技术研究与实现

发布时间：2018-03-24 19:53

  本文选题：电梯　切入点：曳引机控制系统　出处：《南京理工大学》2017年硕士论文

【摘要】：随着城市化进程的推进,电梯已经成为人们生活中必备的运载工具。中国是全球最大的电梯生产国和消费国,但本土电梯品牌长期在曳引机驱动控制技术上受制于人,发展我国自主的电梯高性能驱动控制技术是缩短国内外差距、开拓市场份额的必经之路。本文针对曳引机控制中存在的技术难点,研究了永磁同步曳引机驱动与控制中若干关键技术,主要工作与成果如下:(1)对采用传统串级PI控制的曳引机矢量控制系统进行了研究,结合曳引机控制的具体需求,针对PI控制器存在的不足,在电流环和速度环中分别引入解耦补偿控制和多模态切换控制,并进行了仿真验证。(2)分析了曳引机启动时的转子初始位置检测问题,提出了一种利用正弦波增量式编码器换向信号计算转子初始位置的方法,满足了曳引机拖动的实际应用需求。(3)分析了因编码器量化误差导致的低速抖动问题以及负载扰动对曳引机运行性能的影响,基于卡尔曼滤波的原理,分别了设计转速、转矩观测器,改善了曳引机低速运行性能,实现了曳引机抗扰动控制,有效提高了电梯曳引机系统全速度段的调速性能指标。(4)基于自行研制的曳引机驱动控制系统,完成了曳引机驱动控制软件的研发,包括电机运行状态检测模块、转速、转矩观测器模块、转速、电流调节器模块和PWM信号发生模块。以上方法在实际系统中进行了测试,结果表明:本文提出的永磁同步曳引机驱动控制算法是有效的,对给定的电梯运行速度曲线具备良好的跟踪性能。
[Abstract]:With the city development, the elevator has become the vehicle for people's life. China elevator is the world's largest producer and consumer, but the domestic elevator brand long-term in the machine drive control technology on the development of China's own heteronomy, the high performance of the elevator drive control technology is to shorten the gap between domestic and foreign market development the only way which must be passed. Share. Aiming at the technical difficulties of traction machine control, the permanent magnet synchronous traction machine drive and some key technologies of control, the main work and results are as follows: (1) on the traction machine vector control system of traditional cascade PI control are studied, combined with the specific needs of the traction machine control. Lack of the presence of the PI controller, the current loop and speed loop are introduced decoupling compensation control and multi-mode switching control, and simulation experiment is carried out. (2) analysis of the traction machine 鍚�鍔ㄦ椂鐨勮浆瀛愬垵濮嬩綅缃�妫，

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