本文阐述了永磁同步电动机磁场定向矢量控制系统。
This paper presents a field-oriented vector control system for permanent magnet synchronous motor.
永磁无刷直流电动机磁场分布的定量确定对电机性能的预测极为重要。
Quantitative Determinding the distribution of magnetic field of permanent magnet brushless d. c. motor, is very important to analyze its properties.
考虑铁损对于提高异步电动机磁场定向控制下的转矩性能具有重要的作用。
Taking core loss into account has important effect to improve the torque performance of the motors' field oriented control.
本文用积分方程法建立了永磁步进球形电动机磁场的数学模型，导出了用于计算其磁场分布的离散计算公式。
The model of magnetic field inside PMSS is developed using integral equation method (IEM) and discrete expressions on field distribution are also derived.
当CP脉冲为低频时，各相绕组平均电压和平均电流较低，电动机磁场储能较少，一定程度上克服了共振现象。
When the frequency of CP pulses is lower, average voltages and currents of windings will decrease and magnetic field energy of motor is very little so as not to produce resonance.
本文从变频器电动机组成的系统角度出发，研究逆变器开关方式与电机磁场的关系及SPWM调制下电动机磁场的生成特点。
The relations of SPWM inverter switching model and motor field, and motor field characteristics in this circumstance are re-searched.
对异步电动机磁场定向控制技术中的电流控制概念进行了分析，综述了近年来的各种电流控制方案，重点评述了基于PWM逆变器的各种电流控制技术。
This paper passes on the current control concept in the field-orientation control of induction motor drives presents recently current control techniques, reviews emphatically PWM current controllers.
这样的设备被称为异步电动机，因为转子的磁场总是滞后于定子的磁场。
Such machines are known as asynchronous motors, because the rotor's magnetic field never catches up with the stator's field.
通过对磁场的分析，可以计算出直线感应电动机的运行特性。
By analyzing magnetic field, the operation characteristic of the linear induction motor was calculated.
HSY作为电动机使用时，由于需要直流磁场，与普通pmsy的驱动单元相比，应额外增加一个励磁电路。
Since HSY requires dc magnetic field, an exciter with control circuitry is needed in addition to the conventional PMSY drive unit when employed as a motor.
本文正是从实际应用的角度出发，来研究凸极同步电动机在起动过程中的电磁场和电机转子温升变化规律。
From the aspect of practical application, this paper studies electromagnetic fields and rotor temperature rise change of salient synchronous motor in the process of starting.
所连接的直流电动机可以这样调整使得其转速高于同步转速且旋转方向与定子旋转磁场的方向一致。
The coupled dc motor can be adjusted so that the speed of the system is higher than the synchronous speed and the system rotates in the same direction as the stator rotating field.
电能供给电动机绕组和磁场，产生电磁感应作用，试电动机产生机械能或者转矩。
Motors have electrical energy supplied to their windings and a magnetic field that develops an electromagnetic interaction to produce mechanical energy or torque.
这是因为电励磁的同步电动机可通过调节励磁电流来改变其磁场和功率因数，使输出的机械特性与负载特性相匹配。
Synchronous motor excitated magnet by direct current can make output mechanism specialities matched load specialities by means of adjusting exciting current to change magnetic field and power factor.
当采用通用有限元软件对永磁同步电动机进行分析时，存在着电机定转子轴线相对位置未知的问题，而确定这个相对位置是进行电机负载磁场计算的前提。
When using universal finite element software to analyze PMSM, the relative position of stator and rotor axis is unknown, which is the precondition for load field calculation.
行波磁场与次级相互作用便产生电磁推力，这就是直线电动机运行的基本原理。
Traveling-wave interaction and secondary magnetic field is generated electromagnetic force, which is a straight line to run the basic principles of electric motors.
当旋转磁场电机用作拖动电动机时，转矩的产生和控制就需要得到特殊的考虑。
When rotating-field machines are employed as drive motors, the question of torque generation and control requires special consideration.
用有限元方法，计算出五相混合式步进电动机齿层部分磁场参数；
The finite element method is used to calculate five-phase hybrid stepping motor's tooth layer magnetic field parameters.
脉振磁场永磁低速同步电动机是一种新结构原理的电机。
The pulsating magnetic field PM low speed synchronous motor is a type of PMSM with novel structure and principle.
用简单的演示实验模拟交流电动机旋转磁场，配合理论教学，改善了课堂教学效果。
Simple demonstration experiments simulating motor rotary field with theoretical teaching improve classroom instruction effect.
开关磁阻电动机在两相励磁的工作条件下，定转子轭部磁场高度饱和使每相磁链有所减小。
When the switched reluctance motors operate in two phase excitation mode, the phase flux linkage will be reduced due to the high magnetic saturation in the stator and the rotor yoke.
提出的新型可植入式人工心脏是由轴向磁场结构的永磁同步电动机直接驱动。
This paper presents a novel artificial heart, which is directly driven by a compact permanent magnet synchronous motor (PMSM) with axial-field configuration.
探讨与分析了电网谐波磁场及谐波电流对电动机的影响与危害。
This paper discusses and analyzes on the effects and harms of the harmonic magnetic field and harmonic current on the electromotor in electric network.
本文采用有限元法对带铁氧体屏蔽罩的稀土永磁低惯量直流伺服电动机的磁场进行了计算。
The magnetic field of a low-inertia REPM DC servo motor with ferrite shielding case was calculated by the finite element method.
根据计算得到的空载及负载的磁场分布，提出了计算单边永磁直线同步电动机产生的推力和垂直力的方法。
According to the field distributions in no-load and load operations, the methods of calculating the thrust and vertical force in a single-sided PMLSM are presented.
介绍感应电动机矢量控制系统中转子磁场定向的一种自校准算法。
A self - calibrating algorithm for rotor field - oriented control only using measurements of the stator currents and rotor speed of an induction motor is parented.
系统软件基于这些数学模型来实现感应电动机转子磁场定向矢量控制，并给出了软件程序流程。
The rotor flux field-oriented vector control method is implemented basing on these mathematical models in system software. The software program flow is presented.
步进电动机象同步电动机一样，在负载转矩的作用下，转子磁极中心线将滞后于气隙磁场的中心线一个角度，称为失调角。
Like synchronous motor, rotor magnetic pole center line could lagged behind an Angle of that of air-gap magnetic field under the function of load torque (called angular displacement).
该公式的建立为轴向磁场永磁同步电动机的性能分析及预测创造了条件。
The foundation of those equations create conditions for the performance analysis and prediction of axial-field permanent magnet synchronous motor.
将交流电机的多回路理论与电磁场的有限元方法结合起来建立了多相永磁同步电动机的多回路—有限元数学模型。
A novel multi phase permanent magnet motor's mathematical model that combines multi loop theory of AC motor and finite element method of electromagnetic field is proposed in the paper.
应用推荐