毕业设计(论文) 课题名称基于 DSVM 感应电机直接转矩控制的DSP 实现院 (系)专 业自动化姓 名学 号起讫日期指导老师感应电机的离散空间矢量直接转矩控制讨论摘要直接转矩控制技术是继矢量控制技术之后沟通调速领域中新兴的控制技术，采纳空间矢量的分析方法，在定子坐标系下计算并控制转矩和磁链，以获得转矩的高动态性能，相比于矢量控制，它省去了复杂的矢量变换，克服了对电机转子参数的依赖性，具有转矩响应快的优点，本文给出一种感应电机离散空间矢量调制直接转矩控制(DSVM-DTC)的数字实现方法，详细阐述了以 TI 公司的 TMS320F2812 作为控制器核心的直接转矩变频调速系统的软 、硬件设计方案。实验结果表明，DSVM 技术可有效减小转矩脉动，改善电流和磁链波形，且保持了一般直接转矩控制方法转矩动态响应快的优点。关键词：直接转矩控制；离散空间矢量调制；转矩脉动；TMS320F2812A research for discrete space vector modulation direct torque control of induction motor drivesAbstractAbstract: Direct Torque Control，following the vector control technique, is an emerging technique in the field of AC Motors speed control .Using the space vector analysis method, the DTC technique calculates and controls the torque and flux linkage in the stator coordinate system in order to obtain higher dynamic torque performance. Comparison of vector control DTC eliminates the need of complex vector transform, overcome the dependency to rotor parameters，and has an advantage of fast torque response，a digital implementation method of discrete space vector modulation direct torque control (DSVM-DTC) system of induction motors is presented. The software and hardware design scheme of DTC driving system using the TMS320F2812 is investigated in details. The experiment results show that torque ripple are significantly reduced, the wareform of current and flux linkage are improved effectively and the technology of DSVM control keep the advantage of fast torque response of DTC. Key...
