| 1. | Study on harmonics and influence on the electro - magnetic torque of svpwm
谐波分析及其对电机转矩的影响 |
| 2. | Torque and minimum dimension of axial - magnetized permanent magnet micromotor
轴向磁化永磁微电机转矩与最小尺寸 |
| 3. | Torque analysis of planar permanent magnet micromotor based on magnetic field
基于磁场观点的平面永磁微电机转矩分析 |
| 4. | Torque ripple minimization in direct torque control of a permanent magnet synchronous motor
一种减少永磁同步电机转矩脉动方法 |
| 5. | Using torque vector control method can increase motor ' s output torque , and can upgrade motor ' s dynamic characteristic . finally , the thesis gives and analyses running results of the motor control systems after using different control methods
步进电机转矩矢量控制策略能够提高电机输出转矩的稳定性和幅值，也提高了电机的稳态和动态特性。 |
| 6. | Finally , in order to reduce the torque ripple of srm the fuzzy - control system is established in which the torque - sharing current function is controlled to reduce torque ripple . at last the simulation results are given
最后针对开关磁阻电机转矩脉动较大的缺点，建立模糊控制系统，通过对转矩?电流函数的控制来减小转矩脉动，取得了较好的效果。 |
| 7. | Aiming at the uncertainty brought by the rotating inertia and motor torque coefficient during the field weakening process , the mixed sensitivity robust controller based on inner mode principle is designed
在此基础上，针对实际直流电机速度控制系统弱磁调速过程中存在的电机转矩系数变化和转动惯量等因素引起的参数不确定性特性，应用内模原理，设计了混合灵敏度鲁棒控制器。 |
| 8. | ( 3 ) a hardware platform with the arrangement of dsp + ipm and pmsm dtc software realization are also given in the thesis . the drive system works the way that we expected , which gives the solid feasibility reasons of the strategy
( 3 )在理论研究的基础之上，设计研制了一套基于dsp + ipm的永磁同步电机转矩直接控制实验系统，编写了控制程序软件，进行了永磁同步电机运行实验。 |
| 9. | A variable - speed dtc pmsm system is set up to verify the dtc theory in pmsm , that is to control the toque by controlling the torque angle of motor if the stator flux linkage keeps constant . this paper points out the function of the space voltage vector by which the torque angle can be changed according to the need of torque of the motor
主要作了以下开创性的工作：系统地阐述了永磁同步电机直接转矩控制理论，发展了原有的控制理论，明确了空间电压零矢量在控制系统中的重要作用? ?保持电机转矩输出，减小转矩脉动，据此提出了包括零矢量的新型控制方法。 |
| 10. | The main contents of the study as follows : ( 1 ) an introduction to the space vector theory and its application on the modeling of pmsm is presented firstly , which shows the basic idea of pmsm dtc . a comparison of dtc in asynchronous machine and pmsm is made as well . in order to take the full advantage of the dtc , the pmsm has to be properly selected
本文的主要内容包括： ( 1 )由空间矢量模型推导出永磁同步电机的磁链、电压和转矩的公式，描述了永磁同步电机转矩直接控制的基本控制机理，分析了永磁同步电机与感应电机在转矩直接控制方式上的不同之处以及转矩直接控制对永磁同步电机的要求。 |
