基于SMO的矿用电机车调速系统设计

发布时间：2018-02-01 17:56

本文关键词： 直接转矩控制开关磁阻电机滑膜观测器蓄电池电机车无位置传感　出处：《安徽理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：矿用蓄电池机车作为煤矿现场主要的运输设备,在煤矿生产中发挥着至关重要的作用。直流电机作为传统矿用电机车的主要牵引设备,其性能的好坏直接影响着电机车的运行效率。随着变频调速技术和电力电子的发展,交流调速系统与直流调速系统相比,具有高效率、动态性能好和维护方便等特点。因此,交流调速系统已开始慢慢取代传统的直流调速系统。开关磁阻电机调速系统作为一种新型交流调速系统,具有结构简单、控制灵活、故障率低和运行效率高等特点,适合作为矿用电机车的牵引动力。本文通过研究开关磁阻电机的工作方式和数学模型,针对开关磁阻电机低速运行过程中出现转矩脉动大的问题,提出了一种基于直接转矩控制的新型开关磁阻电机调速系统。通过MATLAB软件对控制系统进行了建模和仿真,仿真结果表明,基于直接转矩控制的开关磁阻电机调速系统转矩脉动小、转速响应快。转子位置传感器在开关磁阻电机调速系统中发挥着重要的作用,但位置传感器的高故障率已成为限制开关磁阻电机发展的重要因素。本文基于滑模变结构控制技术,提出了一种开关磁阻电机无位置传感器调速方法,该方法通过建立开关磁阻电机的非线性电感模型,并采用滑模观测器(SMO)对开关磁阻电机转子位置角进行估算,实现了开关磁阻电机无位置传感器调速系统。系统仿真结果表明,转子位置角估算精度高,且具有较强的鲁棒性和自适应性。最后,本文完成了基于ARM内核的高性能处理芯片STM32F103VET6的矿用电机车调速系统的软硬件设计。现场样机实验的结果表明：基于滑膜观测器的矿用电机车直接转矩控制系统,有效的降低了调速系统的故障率,提高了矿用电机车调速系统的运行效率,可以很好的适应煤矿井下的复杂的工作环境。
[Abstract]:As the main transportation equipment in coal mine, mine battery locomotive plays an important role in coal mine production. DC motor is the main traction equipment of traditional mine electric locomotive. Its performance directly affects the running efficiency of electric locomotives. With the development of frequency conversion and power electronics, AC speed regulation system is more efficient than DC speed control system. Therefore, AC speed regulation system has gradually replaced the traditional DC speed regulation system. As a new type of AC speed regulation system, switched reluctance motor speed regulation system has a simple structure. The features of flexible control, low failure rate and high running efficiency are suitable for traction power of mine electric locomotives. By studying the working mode and mathematical model of switched reluctance motor (SRM), this paper aims at the problem of high torque ripple in low speed operation of SRM. A novel switched reluctance motor speed regulation system based on direct torque control (DTC) is proposed. The simulation results show that the control system is modeled and simulated by MATLAB software. The switched reluctance motor speed control system based on direct torque control has small torque ripple and fast speed response. Rotor position sensor plays an important role in switched reluctance motor speed regulation system. However, the high failure rate of position sensor has become an important factor limiting the development of switched reluctance motor. Based on the sliding mode variable structure control technology, a sensorless speed regulation method for switched reluctance motor is proposed in this paper. In this method, the nonlinear inductance model of switched reluctance motor (SRM) is established, and the rotor position angle of SRM is estimated by sliding mode observer (SMO). A sensorless speed regulation system for switched reluctance motor is implemented. The simulation results show that the rotor position angle estimation is accurate and robust and adaptive. Finally. In this paper, the software and hardware design of the speed control system of mine electric locomotive based on ARM core and high performance processing chip STM32F103VET6 is completed. The result of field prototype experiment shows that:. The Direct torque Control system of Mine Electric Locomotive based on synovial Observer. It can effectively reduce the failure rate of the speed regulation system, improve the running efficiency of the speed control system of mine electric locomotive, and can adapt to the complex working environment of the coal mine well.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD64

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