基于DSP的开关磁阻电机调速系统的研究.docVIP

基于DSP的开关磁阻电机调速系统的研究 摘要 本论文介绍了开关磁阻电机调速系统 SRD 的构成及其在国际国内的发展状况，对开关磁阻电机的特点和电磁原理进行了阐述，它的优点有结构简单、成本低、损耗小、效率高、可控参数多、控制灵活、起动电流小、起动转矩大。 同时介绍了DSP的发展、特点及应用本文分析了DSP与开关磁阻电机控制器接口电路要求和DSP外围电路接口技术。介绍了SRD的控制方式和本系统所采用的控制策略，讲述了DSP芯片的种类以及各类的作用和应用，随着DSP芯片性能价格比的不断提高，可以预见DSP芯片将会在更多的领域内得到更为广泛的应用。经过多年的发展，DSP产品的应用已扩大到人们的学习、工作和生活的各个方面，并逐渐成为电子产品更新换代的决定因素。 本文还对控制器的硬件电路进行了设计，控制器以TI公司的TMS320LF2407为主控单元，发出相通断信号和PWM信号，实现对功率元件的通断控制。通过控制软件，采用模块化编程，增强了程序的通用性和可读性。 最后给出了硬件原理图和软件结构设计框图，初步尝试用DSP控制芯片作为核心器件实现了开关电动机调速系统。 关键词　DSP， 开关磁阻电机, 脉宽调制 Abstract This article primarily Introduces the structure of Switched Reluctance Drive SRD system and its development of native and international. The characteristic of Switched Reluctance Motor SRM and its electro-magnetics principle are described in details.It of the advantage have structure simple, the cost be low and exhaust small, efficiency big, can control parameter many, control vivid, start electric current small, start to turn big, ability ratio normal regulations electrical engineering high have to much turn soon bottom circulate, hard enduring. At the same time the article expounds the development,characteristic and application of digital signal processor DSP .It analyzes a few requests about interface circuit of DSP and SRM control. The control method is introduced and the hardware of the controller is designed. Related the category of the DSP chip and the function of every variety and application.Along with the DSP chip function price ratio of continuously exaltation, can foresee DSP chip will get in more realm more extensive of application.Through the development for several years, DSP product of application already extension arrive people of study, work and life of each aspect, and gradual become an electronics product renewal to change generation of decision factor.The paper introduction the controller uses the TMS320LF2407 of TI company as the main control unit and produces the on and of and PWM signal of each phase controlling the IGBT on