《感应电机的空间矢量直接转矩控制研究》-毕业论文（设计）.doc

毕业设计(论文) 课题名称 感应电机的空间矢量直接转矩控制研究 院 (系) 电气工程与自动化学院 专 业 自动化 姓 名 学 号 起讫日期 指导教师 感应电机的空间矢量直接转矩控制研究 摘要 直接转矩控制技术是继矢量控制技术之后交流调速领域中新兴的控制技术，采用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。本文首先介绍了感应电机直接转矩控制的发展现状和和基本原理，并给出了一种感应电机空间矢量直接转矩控制的数字实现方法，给出了以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。采用空间矢量调制方式生成逆变器开关控制信号，有效减小了转矩和磁链的脉动，实现了感应电机的高性能控制。 关键词：感应电机；直接转矩控制；空间矢量调制；TMS320F2812 A research for space vector modulation direct torque control of induction motor drives Abstract 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, This paper first introduced the induction motor direct torque control development present situation and basic principle, present a digital implementation method of space vector modulation direct torque control (DTC) system of induction motors, The software and hardware design scheme of DTC driving system using the TMS320F2812 as the main controller is investigated in details. Using space vector modulation mode generating inverter switch control signal, effectively reduce the torque and magnetic flux pulsing, realized the high performance control of induction motor. Key Words: Induction motor; Direct torque control; SVPWM; TMS320F2812 目录 TOC \h \z \t 标题 1,2,标题 2,3,标题 3,4,标题,1 HYPERLINK \l _Toc295393596 摘要 PAGEREF _Toc295393596 \h I HYPERLINK \l _Toc295393597 Abstract PAGEREF _Toc295393597 \h II HYPERLINK \l _Toc295393598 第一章 绪论 PAGEREF _Toc295393598 \h 1 HYPERLINK \l _Toc295393599 1.1 电机拖动技术