开关磁阻电机及其控制策略研究

【作者】 李广海；

【导师】 蒋静坪；

【作者基本信息】 浙江大学 ， 控制理论与控制工程， 2004， 硕士

【摘要】 开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)以其优良的调速性能日益收到人们的关注，显示出强大的市场竞争力。本文以完成基于数字信号处理器的3KW四相(8／6极)开关磁阻电机控制系统的设计和研制为主要研究内容。 全文的研究工作包括一下几个部分。第一章简要概述了SRD系统发展过程、发展方向，以及SRD系统的基本结构、工作原理和特点；第二章为功率变换器的设计和制作，介绍了各种主电路的形式，详细论述了一种H型功率变换器的工作原理和特点，主开关器件选用IPM。第三章介绍了以TI的DSP为核心的控制系统的软硬件设计。第四章介绍了开关磁阻电机制动的原理和控制方法，并给出了一套3KW开关磁阻电机能耗制动的设计实例，解决了位置检测、优化控制以及系统保护等制动过程中不容忽视的问题。这对降低系统成本、提高系统性能／价格比和开拓开关磁阻电机的多种应用具有重要意义。第五章阐述了取消转子位置传感器的理论依据，提出了一种对中小功率开关磁阻电机可行的无位置传感器测量技术方案，同时介绍了DSP测量SRM静态磁链特性的试验方法。第六章为全文的总结。更多还原

【Abstract】 The Switched Reluctance Drive Systems posses many inherent advantages of adjustable-speed drive, it attracts more and more attention and shows competition in commercial applications. In this thesis the 3KW 4-phase switched reluctance motor control system is designed based on DSP.The thesis contains five chapters. In the first chapter, it offers the system survey of SRD, including developing process and trend. The operational principle, structure and characteristics of SRM are also cited. The second chapter describes the design and produce of power converter. The characteristics of various kinds of power circuit are discussed. The H-type power converter is analyzed in detail. A new type power transistor (IPM) has been chosen to the power switch for simplified the frame of the converter. The third chapter offers SRD control system design of hardware and software based on TI’s DSP. The fourth chapter discusses the principle and the control method of regenerative braking, then an example of the design for a 3KW switched reluctance motor’ regenerative braking is described. Some inevitable questions during the regenerative braking such as the rotor-position measure, optimized control and system protection were solved. This is instructive to reduce the cost and improve the cost performance and broaden the application field of the switchedprinciple of indirect position sensor is presented, a method including an experiment method using DSP to measure magnetic linkage adapted to low power SRM are recommended, an indirect position sensor design for 3KW SRD is detailed to prove the feasibility of the recommended method. The sixth chapter is the conclusion of the full text.更多还原