本文从异步电机的数学模型出发，推导了异步电机简化数学模型，同时结合空间矢量的概念介绍了直接转矩的基本原理。
On the basis of the mathematical model of induction machine, simplified mathematical model is deduced, at the same time the theory of DTC is introduced with the concept of space vector.
课题以异步电机的原理与结构为根本，把数据库技术应用到异步电机中来。
This task is based on the principle and structure of asynchronism motor, the database was applied into the asynchronism motor.
本文从理论和实践方面探讨了矿用三相异步电机功率测量装置的设计及研制原理。
In this paper, principle of design and study of three-phase induction motor power measuring device is discussed in theory and practice.
本文从理论和实践方面探讨了矿用三相异步电机功率测量装置的设计及研制原理。并用实际测试单元电路实现。
In this paper, principle of design and study of three-phase induction motor power measuring device is discussed in theory and practice. And practical measuring unit circuit is used in the device.
本文根据自适应滤波的原理，推导出处理鼠笼转子异步电机定子电流的方法。
The paper presents a method of processing the stator current of squirrel cage induction motor with broken rotor bar. The method is based on the theory of adaptive filter.
阐述了异步电机转速估计基本原理，指出了常规方法所存在的问题。
The fundamental principle of speed identification for induction motors is introduced. The drawbacks of the usual method of speed identification is pointed out.
本文主要论述运用电机学原理解决绕线式异步电机起动中的火花异常问题。
This paper mainly talks about applying electric motor Principle to solve the wound-primary type asynchronous motor starting sparks abnormal problem.
针对异步电机轻载时运行效率低的缺点，阐述了异步电机降压节能的原理。
To the disadvantage that asynchronous motor has lower operational efficiency with light-loading, the paper analyzes the energy-conserving principle by step-down.
本文首先介绍了异步电机直接转矩控制的基本原理，从异步电机的数学模型入手，逐步分析，从而得到磁链和转矩。
This thesis introduces the basic principle of direct torque control on asynchronous motor. Through mathematics model of asynchronous motor, stator flux and torque can be got.
本文首先介绍了异步电机直接转矩控制的基本原理，从异步电机的数学模型入手，逐步分析，从而得到磁链和转矩。
This thesis introduces the basic principle of direct torque control on asynchronous motor. Through mathematics model of asynchronous motor, stator flux and torque can be got.
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