开关磁阻电机（Switched Reluctance Motor—简称SRM），结构简易、自身控制灵活、坚固、工作可靠、调速性能优异等特点，所以其应用前景非常大，因而受到国内外许多学者的关注。另外一方面，由于SRM的工作原理和它特有的双凸极结构导致了其在运转时具有较大的转矩脉动和噪声等问题,导致了它在一些工业中的应用受到了限制。本文主要从控制性能入手深入研究控制方式，使其对开关磁阻电机的控制效果得到改进与提高。 本文首先分析了开关磁阻电机的结构和工作原理，对其数学模型、SRM的转矩公式、电磁关系等等进行了详细的研究，其次在控制方式上以直接转矩控制（DTC）为基本控制方式，在结构上通过以直接转矩控制和电流斩波控制为控制对象进行对比，得出直接转矩控制在转矩脉动和电流等等条件下都优于电流斩波控制。在此基础上，为了更好的优化其系统，结构上引入了模糊自适应PI控制，通过在一定的转速范围类，进行调节，得到了符合四相SRM和直接转矩控制的模糊自适应PI规则表。通过MATLAB/Simulink的仿真，首先先以直接转矩控制为控制方略，将其与电流斩波控制的方法进行实验仿真对比，验证了直接转矩控制下的转速、转矩都比电流斩波控制下的调节良好；再通过模糊自适应PI控制与直接转矩控制下的PI控制进行仿真实验，根据其结果表明模糊自适应控制比PI控制的转速和转矩更好，相对于PI控制，模糊自适应PI控制具有更强的抗干扰性和快速恢复性能，并且对转速达到给定时间等问题有了很好的改进，提高了SRM的运行性能。 本文最后完成了以DSP TMS320F2812为核心下，设计了硬件电路，其中包括位置检测电路、功率变换驱动电路和采样电路等，编写了本设计所需的软件流程图和程序，通过硬件和软件的结合，进行实验论证，实现了模糊PI调节的直接转矩控制，且对后续的研究具有一定的参考价值。

Switched Reluctance Motor (abbreviated from of a SRM), simple structure and its control flexible, durable, reliable and excellent speed adjusting performance and other characteristics , so its application prospect is very large. Therefore, it has been the concern of many scholars at home and abroad. On the other hand, due to the working principle of SRM and its characteristic of doubly salient structure leads to it has large torque ripple and noise problems in operation, resulting in it's restricted in some industrial application . In this paper, we mainly study the control method of the switched reluctance motor to optimize the control performance, which can inprove the control effect of the switched reluctance motor. Firstly ,this paper analyzes the structure and working principle of the switched reluctance motor, has carried on the detailed study on the mathematical model, SRM torque formula, electromagnetic relations and so on. Secondly in the control mode based on direct torque control (DTC) as the basic control mode, in the structure through by direct torque control and current chopping control as the control object is compared, it is concluded that the direct torque control in torque ripple and current conditions are better than that of current chopping control. Based on, in order to better optimize the system, introduced adaptive fuzzy PI control in the structure , through adjust speed in a certain range , get a fuzzy adaptive PI rule table of the four phase SRM and direct torque control . Through the simulation of MATLAB / Simulink, first of all to direct torque control as the control strategy, compared with the current chopping control method of simulation experiment, verify the direct torque control of speed and torque are than under the current chopping control regulated; through the fuzzy adaptive PI control and direct torque control of PI control of simulation experiment. According to the results show that the speed and torque of the fuzzy adaptive control better than PI control , the fuzzy adaptive PI control has stronger anti-interference and quick recovery performance compared with PI control,and the speed can reached a given speed at the period of time and improved the work performance of SRM. Finally, taking the TMS320F2812 DSP as the core and designed a hardware circuit.This circuit has included the position detection circuit and power conversion circuit module, and the sampling circuit so on.At the same time,drawed the software flow chart and writed program code. At last,combining the hardware and software to verified，this theory is feasiblely .The Direct torque control of fuzzy PI regulation was realized and has certain reference value to the follow-up study.