开关磁阻电机（Switched Reluctance Motor，简称SRM）作为一种新型调速电机，已在家用电器、航空工业以及电动汽车等领域得到应用，其调速系统（Switched Reluctance Motor Drive，简称SRD）性能也在不断提升。由于它结构简单、系统可靠、起动转矩大、起动电流小和在较宽调速范围内能够保持较高效率的优点，所以为SRD发展带来了机遇。然而，SRM较多的控制参数和对不同的转速需要不同控制策略的特性，导致其控制方式复杂，优点不易充分发挥。由于对它的研究起步较晚、发展较慢，且传统交直流调速系统具有较大的市场惯性，从而导致SRD的应用比较落后，因此开展对SRD的应用研发具有实用意义。速度作为主要性能指标之一，是SRD应用的关键所在，本文以提高速度性能为出发点，开展硬件电路及控制系统软件的相关设计研究。 论文以一台7.5kW三相12/8级样机为对象，介绍SRM基本工作原理、完整的数学模型，根据不同精度要求分析线性模型、准线性模型下电机特性；以两种模型为基础分析斩波控制和角度位置控制方法，进行调速控制算法分析和设计。在理论分析的基础上,设计调速控制系统的硬件电路，由功率变换器、主控器DSC、位置检测电路、驱动电路等模块组成的能够实现基本功能和算法功能的电路板。在硬件平台的基础上，根据调速控制要求设计相应软件，给出了位置识别、速度计算、速度闭环控制、系统保护等编程思想和实现方法。针对实现调速功能的软硬件设计难点，如，对传统吸收电路无法有效吸收过流、短路时的尖峰电压的问题，引入有源嵌位设计，以确保故障情况下功率管的安全关断；对有位置传感器SRM启动时易出现紊乱，而无法正常运行的现象，采用任意初始位置无反转启动方案，实现电机的无反转启动；对速度调节所面临的非线性和变结构问题，采用变参数PID和积分分离的PID控制算法进行调速控制。 最后，依据本文所要解决的问题以及调速控制的要求，依托所设计的硬件及软件调速平台进行实验验证，所获得的实验数据和波形，表明系统设计的合理性和理论分析的正确性，为进一步研究和实际应用奠定基础。

As a new speeding motor, Switched Reluctance Motor (SRM) has been widely applied in many fields, such as Household appliances, general industrial, aviation industry and the field of electric vehicles and the property of Switched Reluctance Motor Drive (SRD) is being promoted. SRM has advantages of simple structure, high reliability, large starting torque, small starting current and the ability to maintain high efficiency over a wide speed range, which has brought the SRD a terrific development opportunity. Due to the late start of the study, slow development, faultiness technology and the large market inertia in traditional speed control system, the SRD application is backward. Therefore, carrying out applied research for SRD has practical significance.As one of the main performance index, speed is the critical part of SRD application. This paper takes speed performance as the starting point to carry out the hardware circuit and software design studies. However, the flexible control parameters and characteristics that different speed control strategies should be taken in different speed make SRM hard to control and diffcult to play its advantages. In this paper, a three-phase 12/8 pole with rated power of 7.5kW SRM was used as the research object. The SRM basic working principle and Complete mathematical model is introduced. The characteristics of the motor was analysised in Linear models and quasi-linear model in different accuracy requirement.Based on the two mode, Chopping control and angle position control(ACP) were analysised and speed control algorithm analysis and design were also implemented.Based on the theoretical analysis, hardware circuit of speed control system which consists of power converter, master chip TMS320F28335, position detection circuit and drive circuit and can achieve basic functions and arithmetic functions was designed. According to speed control requirements, system software was designed and programming ideas and implementation methods about location identification, speed calculation, closed loop speed control and system protection were introduced based hardware platform. Faced with the diffcult such as that power electronic transistor off peak absorption circuit can’t absorb the off peak votage when Overcurrent and short circuit, it is prone to disorder and can not properly run when switched reluctance motor starts and nonlinear and variable structure should be overcame when the speed control was implemented, active clamp was introduced to the design to ensure the power electronic transistor safe shutdown at system error, implementation scheme is proposed in order to achieve an arbitrary initial position start without inversion and variable arguments PI algorithm and integral separation PI control algorithm were adopted to realize Speed control. At last, relying on the designed hardware platform, experimental verification was implemented based on the problems that this paper intended to resolve and speed control requirements. Experimental data and waveform showed the system design reasonable and the theoretical analysis is correct, and laid the foundation of further research and practical application.