随着我国“碳达峰”和“碳中和”目标的有序推进，煤炭行业的发展进步对于我国绿色能源发展和产业升级起到至关重要的作用。带式运输机作为煤炭行业主要的运输物料装备，对于煤炭行业的革新发展举足轻重。而异步电机驱动的带式运输机系统存在着低速性能差能耗高及机械效率低等问题。为了使运输机系统具有较好的调速性能和高效安全的运行性能，研究了永磁同步电机驱动的带式运输机系统。 首先，通过对带式运输机驱动方式的比较研究，确定了永磁同步电机直接驱动滚筒的驱动方式，又从带式运输机的运行特性和对驱动装置的要求分析，详述了选择永磁同步电机作为驱动电机的必要性。但由于永磁同步电机在低速运行时存在问题，决定从驱动系统控制角度优化带式运输机的调速系统。同时通过对比分析各主要控制策略的特点，并结合带式运输机运行工况，从而选定直接转矩控制策略。但永磁同步电机低速运行时，传统直接转矩控制方式存在调速性能差，转子位置估计不准确等问题。为了解决这些问题，在空间矢量脉宽调制的直接转矩控制方式的基础上加入了定子电阻跟踪器，建立了带定子电阻跟踪的SVPWM-DTC控制调速系统。 其次，为了进一步提升直接转矩控制系统的低速性能和抗干扰性能，利用空间电压矢量可以合成任意电压矢量的优点，结合高阶滑模控制具有较好的抗干扰性的特点，将超螺旋滑模控制理论中不连续的符号函数替换成连续的饱和函数，并将其应用到转速、转矩、磁链的控制器中；同时，设计了基于锁相环的滑模观测器来准确获得转子位置和转速信息，并建立起了超螺旋滑模控制的直接转矩控制调速系统。 最后，在Matlab/Simulink中搭建了带定子电阻跟踪的SVPWM-DTC控制调速系统， 超螺旋滑模控制的直接转矩控制调速系统，并进行仿真对比分析。同时也搭建了调速系统实验平台进行实验验证。结果表明，相比于带定子电阻跟踪的SVPWM-DTC控制调速系统，超螺旋滑模控制的DTC调速系统具有较好的调速性能和精确的控制性能。

With the development of our country Carbon peak and Carbon neutralization orderly advancement of the target, the development and progress of coal industry plays an important role in the development of green energy and industrial upgrading in China. As the main material transportation equipment in the coal industry, belt conveyor plays an important role in the innovation and development of the coal industry. However, the belt conveyor system driven by asynchronous motor has the problems of poor low-speed performance, high energy consumption and low mechanical efficiency. In order to the conveyor system has better speed regulation performance and high efficiency and safe operation performance. The belt conveyor system driven by permanent magnet synchronous motor was studied. First of all, through the comparative study of the driving modes of belt conveyor, the driving mode of permanent magnet synchronous motor directly driving the drum was determined, and the necessity of selecting permanent magnet synchronous motor as driving motor was analyzed in detail from the operation characteristics of belt conveyor and the requirements for driving device. However, due to the problems of low-speed operation of permanent magnet synchronous motor, the speed regulation system of belt conveyor was optimized from the perspective of drive system control. At the same time, by comparing and analyzing the characteristics of the main control strategies, and combined with the operating conditions of the belt conveyor, the direct torque control strategy was selected. But, when the permanent magnet synchronous motor runs at low speed, the traditional direct torque control method has some problems, such as poor speed regulation performance, inaccurate rotor position estimation and so on. In order to solve these problems, the stator resistance tracker was added based on the direct torque control mode of space vector pulse width modulation, and the SVPWM-DTC control speed regulation system with stator resistance tracking was established. Afterwards, in order to further improve the low-speed performance and anti-interference performance of the direct torque control system, the advantage of SVPWM to synthesize any space voltage vector and the good anti-interference character of high order sliding mode ware used. The discontinuous sgn(s) function in Super-twisting sliding mode control theory was replaced by the continuous sat(s) function, which ware applied to the controller of speed, torque and flux linkage. At the same time, a sliding mode observer based on phase-locked loop was designed to accurately obtain the information of rotor position and speed, and the direct torque control speed regulation system based on super-twisting sliding mode control was established. Finally, the SVPWM-DTC control speed regulation system with stator resistance tracking and super-twisting sliding mode control direct torque control speed regulation system ware built for simulation comparison and analysis in Matlab/Simulink. At the same time, the experimental platform of speed regulation system was built for experimental verification. The results show that, compared with the SVPWM-DTC control speed regulation system with stator resistance tracking, the direct torque control speed control system based on super-twisting sliding mode control has good speed regulation performance and accurate control performance.