异步电动机直接转矩控制调速系统的计算机仿真  

Computer simulation for speed control system of asynchronous motor direct self-control

作　　者：杨祖泉[1] 姚绪梁[1] 舒小芳[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《应用科技》2005年第3期37-39,共3页Applied Science and Technology

摘　　要：介绍了异步电动机直接转矩控制系统的基本组成和工作原理,采用异步电动机α β坐标系下的数学模型、按照磁链的圆形与六边形控制方法、基于MATLAB6. 5构建了直接转矩控制调速系统的仿真模型,提出了一种新的磁链运行区间判断方法,该方法简单可行、计算量小.仿真结果验证了该模型的正确性和该控制系统的有效性.The paper introduces the basic structure and the working principle of the direct self-control system (DSC) of an asynchronous motor. The simulation model of the DSC speed control system was established based on MATLAB6.5. The model adopts the mathematical expressions of asynchronous motor in α-β coordinate system and the control method of hexagonal or circular flux linkage trajectories. Furthermore, a new method to estimate the running zone of flux linkage is put forward, which is simple and needs little calculation. The simulation results suggests that the simulation model is correct and the control system is effective.

关 键 词：直接转矩控制 异步电动机 仿真 

分 类 号：TM343[电气工程—电机]