查询词典 magnetic torque

In accordance with the basic principle and method of vector control, by using Matlab/Simulink module, a simulation model of vector control system that is offering torque and magnetic link for AC asynchronous motor is built based on rotor flux directional rotating coordinates.

依据矢量控制的基本原理和方法，在基于转子磁场定向的旋转坐标系下，采用Matlab/Simulink模块构建了一个具有转矩、磁链闭环的交流异步电机矢量控制系统仿真模型。

In the implementation of the DTC method, two hysteresis comparators are used to control the magnetic flux and torque, and the switching of the inverter is decided by a optimized switching table.

控制系统采用磁链及转矩滞环比较方法得到控制量，并通过查控制电压开关表选择最优电压空间矢量的方法实现对电机的直接转矩控制。

To enhance ISA system's static and dynamic performance, design of torque,magnetic flux and speed adjuster in Field Orientated Control is detailedly analyzcd,then corresponding software is studied.

为提高ISA系统的静动态特性，分析了全数字化矢量控制中转矩、磁通、转速调节器设计算法，并开发了相应的控制软件。

If the dc motor is adjusted so that the system rotation in a direction opposite to the stator rotating magnetic field, the torque will be in the direction of the rotating field but will oppose the motion of the rotor.

如果调整直流电机，使得系统的转向与定子旋转磁场的方向相反，则转矩的方向与旋转磁场的方向相同但是与转子的方向相反。该转矩称为制动转矩。

The method of how to analyze the electromagnetic field of the generator is introduced. And with the help of a kind of FEM software, the parameters of a model machine are calculated and simulated, including the electromagnetic field, no-load voltage, single-side magnetic force, loaded torque and axial force.

其次，对转子带防护罩的高速永磁发电机数学模型进行了推导，介绍了利用有限元法对电机磁场进行分析的方法，并运用有限元软件对一台样机的参数进行了仿真，包括电机磁场分析、空载电压波形、单边磁拉力、负载转矩以及轴向力等方面的内容。

On the basia of hexagon stator flux trace method with Band-Band control,some improvements are made in the paper on the key sector such as the observation of magnetic field and a new scheme of polygon voltage vector control is presented in order to realize the fast regulation when three-value regulation is used to adjust torque.

使用两点式调节方法对定子磁链进行调节，实现六边形或圆形磁链轨迹方案，并在此基础上对直接转矩控制的关键环节磁通观测提出了改进意见，提出一种基于空间电压矢量调制理论的多边形电压矢量控制方案，以运用三值转矩控制方式实现转矩的快速调节。

In this paper, magnetorheological fluids and it's rheological behavior were introduced. And the principle of the disc-shaped magnetorheological fan clutch was investigated theoretically. The Bingham model was used to characterize the constitutive behavior of MR fluids subject to an external magnetic field. Based on Bingham model the expressions of the torque and the output rotational speed within the clutch is derived to provide the theoretical foundation in the discal design of the clutch. Then the calculations of the radius of the disc, the thickness and volume of MR fluids within the MRF clutch are yielded. Finally, the sketch of the clutch was designed.

文中对磁流变液的材料及流变特性进行了介绍，分析了圆盘式磁流变液汽车风扇离合器的工作原理，基于Bingham模型建立离合器的力矩模型，结果表明离合器传递的力矩随外加磁场的变化迅速变化，力矩的大小可以通过调节磁场强度的大小来控制，进一步推导了离合工作半径，工作间隙厚度等设计计算公式，最后完成了离合器的原型设计。

Nowadays, the research on low speed and high-torque permanent magnetic synchronous machine which using in gearless elevator are getting more and more attention in the fields of motors, and has great science significance and application value.

无齿轮电梯用低速大转矩永磁同步电动机是目前电机领域的研究热点之一，其研究具有重要的科学意义和实用价值。

The maximum transmittable torque is the most important parameter that illuminates ability of Non-contact Permanent Magnetic Gear transmission mechanism.

永磁齿轮所能传递的最大转矩是表达永磁传动机构能力的一个重要参数。

There are many parameters that they influence the maximum transmittable torque, such as the number of poles, the rate of length and diameter, gap and magnetic material etc.

影响永磁齿轮传动机构最大转矩的因素很多，主要有永磁齿轮的极对数、长径比、齿轮间的气隙大小、制造永磁齿轮所用的磁钢、磁极的形状以及充磁方式等等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。