电机的

It is stated that it is not a easy thing to determine the precise value of the small cogging torque using the magnetic field numerical calculation method.

利用二维有限元法，解算了新型交流伺服电动机的空载场，并以此为基础，计算了电机的定位转矩，旋转感应电压和静转矩。

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。

Considering end effect completely, we got the mathematical model of the linear induction motor.

该文充分考虑边缘效应的影响，建立了直线感应牵引电机的数学模型。

To its hydraulic system for each stage of pressure, flow, not the same as all the matches, the electrical power is run in accordance with its maximum load matching process.

对于其液压系统来说，每个阶段对压力、流量的匹配各不一样，而电机的功率是根据其运行过程中最大负荷匹配。

The square of the moment of force of electric machinery and stator voltage becomes direct ratio.

电机的力矩和定子电压的平方成正比。

Design movement is divided into four chapters, the main contents are: the overall plan and rack design; transmission programme design; machine parts design, including the screw and motor calculated center of gravity calculations.

运动设计共分四章，主要内容有：总体方案与机架的设计；传动方案设计；机床零部件设计，其中包括丝杠和电机的计算；重心计算。

First, this thesis introduces the basic structure, static characteristic, operation principle of Doubly Salient Electro-Magnetic Motor and Generator.

本文首先简要介绍了电励磁双凸极电机的结构、数学模型以及电动和发电工作的原理。

To constitute the synchronous rectifier rotating motor starter/generator system, the excitation problem during start process should be solved.

要构成基于旋转整流器式同步电机的起动/发电系统，必须解决起动过程的励磁问题。

The research work in this paper is very important to improve the design method of this kind of motor.

本文的研究工作对于改进此类电机的设计方法具有重要意义。

The analysis of the performance of switched reluctance motor is relatively difficult because of its non linear characteristics of parameters.

开关磁阻电机的非线性使得其性能的精确分析和计算较为困难。

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。