《感应电机直接转矩控制系统硬件电路设计》.docVIP

感应电机直接转矩控制系统硬件电路设计 摘要 近十几年来,直接转矩控制变频调速技术是继矢量控制变频调速技术之后发展起来的一种新型的具有高性能的交流变频调速技术，它以结构简单、静动态性能好、鲁棒性强、易于实现等优点得到重视。基于DSP的感应电机直接转矩控制技术的应用与产品化，是目前交流变频调速市场的强烈需求。本文在第一部分阐述了交流调速技术的发展现状和直接转矩控制的概况；第二部分介绍了DSP数字处理器，具体为TMS320F2808芯片，对其做了相应阐述，并搭建了其外围电路；第三部分对主体电路进行了搭建，包含整流、中间直流、逆变、PWM信号隔离、故障信号隔离、电流检测、电压检测、转速检测电路以及欠压、过压、失压保护电路。在protel软件中对各模块电路进行了集连并成功绘制出PCB板图 关键词：直接转矩控制；整流；逆变；检测电路； PCB板图Induction motor direct torque control system hardware circuit design Abstract In recent ten years, direct torque control variable frequency speed regulation technology is developed after vector control variable frequency speed regulation technology is a new type of high performance of ac variable frequency speed control technology, it with simple structure, good static and dynamic performance, strong robustness, easy to implement, etc. Induction motor direct torque control based on DSP technology application and transition, is currently the ac frequency conversion speed regulating the market strong demand. This article in the first part elaborated the development present situation of the ac (alternating current) technique and direct torque control of the situation; The second part introduces the DSP digital processors, specific for TMS320F2808 chip, to do the corresponding elaboration, and the peripheral circuit is set up; The third part of main circuit structures, contains the dc inverter, PWM rectifier, middle fault signal isolation, signal isolation, current detection and voltage detection, speed detection circuit and undervoltage, overvoltage, loss of pressure protection circuit. On the every module circuit in the protel software set and managed to map out the PCB board Keywords: Direct torque control; Rectification; Inverter; Detection circuit; PCB figure 目 录 1 引言 11.1交流调速技术的发展背景及现状 1 1.2交流调速技术的基础 1 1.3直接转矩控制技术概况 2 1.3.1直接转矩控制的提出 3 1.3.2直接转矩控制的发展现状 3 1.3.3直接转矩控制的基本思想与特点 4 2 DSP控制板设计 5 2.1 DSP芯片概述 5 2.1.1 TMS320F2808芯片的主要性能 6 2.1.2 事件管理器模块概述 7 2.1.3模数转换模块 7 2.2 DSP控制板设计 8 2.2.1 DSP电源设