提出一种新的定子磁链观测方法。
In this paper, a new stator flux observation method was proposed.
但是对转子磁链估计的精度要求很高。
控制算法采用转子磁链观测的矢量控制算法。
Vector Control algorithm based on Rotor Field Oriented is used.
并且具体分析了电压矢量对转矩和磁链的作用。
The function of voltage vectors on the stator flux and torque is investigated.
它具有开关频率恒定，转矩和磁链波动小等特点。
It features in low torque ripple, low flux ripple and fixed switching frequency.
提出了一种基于逆变器开关占空比的定子磁链估计方法。
This paper presents a stator flux estimation method based on the duty cycles of inverter switching.
异步电机矢量控制的关键问题在于精确地估计转子磁链。
In vector control of induction motor, the key problem is to estimate rotor flux accurately.
就磁链控制，转矩估算和转矩调节几个问题分别进行了讨论。
Then the problems such as linkage control and the torque regulation are investigated.
提出了一种基于新型积分算法的异步电机定子磁链估算方法。
A novel stator flux estimation method based on integration algorithms is proposed in this paper.
目前，在直接转矩控制中大多采用电压模型来估算定子磁链。
At present, the flux estimation based on voltage model is widely used in direct torque control system.
可调模型包含电机转速的信息和一个电流模型转子磁链观测器。
The adjustable model contains the information of rotor speed and a current model rotor flux observer.
电流模型是转子磁链定向控制的关键，这里对其进行了离散化分析。
Current model is the key part in the rotor flux linkage oriented control system, and its discretization analysis is conducted.
然而，传统的磁链估计器的精度会因定子或转子电阻的摄动而降低。
However, the accuracy of traditional flux estimators will be degraded due to perturbations of stator or rotor resistance.
与同步电机磁链观测相似，虚拟电网磁链的观测也存在初始值的问题。
However, there are initial problems in the observation of the virtual line-flux-linkage, similarly to the synchronous motors, should be solved.
该观测器在观测定子磁链的同时也辨识了随温度变化的定、转子电阻。
With this flux observer, the stator resistance and rotor resistance, which vary with motor temperature, are identified simultaneously.
针对这些问题，在逆变器建模过程中，提出了一种等磁链电压补偿算法。
Thus during the modelling of the inverter, it is proposed the compensate algorithm with equivalent flux linkage.
提出了基于神经元的用于感应电机矢量控制的自适应磁链和转速控制器。
The adaptive flux controller and speed controller based on neuron are presented for the induction motor vector control.
本文研究了由交换作用耦合起来的有限长铁磁和反铁磁链组成的自旋系统。
The system of spins in a finite ferromagnetic-antiferromagnetic chain, coupled by exchange interaction, is investigated.
系统采用具有自适应补偿的电压模型估算定子磁链，PI自适应法估计转速。
The stator flux is estimated by adaptive compensated voltage model, and the speed is estimated with PI adaptive method.
该文利用空间电压矢量概念，深入分析了软开关pwm模式下磁链的运动轨迹。
This paper discusses the locus of flux linkage under soft-switching PWM pattern by using space voltage vector in detail.
该方案通过放置辅助检测绕组和采用硬件积分器，对电机绕组磁链进行实时检测；
By placing auxiliary gauge-winding on the stator pole and adopting hardware integrator, the flux linkage is measured.
在磁场定向控制的异步电机驱动系统中，精确的磁链估计是提高系统性能的关键。
In an induction motor drive system with field oriented control, the key to improve its performances is accurate flux estimate.
本文对一种新型的基于定子磁链定向的无速度传感器矢量控制系统作了研究和分析。
In this paper a new speed sensor-less vector control system based on stator-flux-oriented is researched and analyzed.
根据外环给定电磁转矩的不同，调整内环转子磁链给定值，以达到能量优化控制的目的。
According to the inner rim rotor flux linkage given value can reach the purpose of the energy optimization control.
通过检测反电势和磁链的正交程度来自动调节磁链补偿程度，以获得磁链的精确观测值。
Compensation feedback flux was automatically adjusted through a proportional-integral (PI) regulator by checking the perpendicular degree of flux vector with back EMF vector.
文中首先简要介绍了这种两相励磁系统的结构，然后提出了两相励磁下SRM的磁链模型。
After a brief introduction of the two-phase excitation scheme, the flux linkage model of a SRM under two-phase excitation is developed using FEA.
结果表明：不检测转子磁链的滑差频率矢量控制系统具有结构简单、控制性能优良等特点。
The result show that the system possesses the features of simple structure and excellent control characteristics etc without detecting the slip frequency of the rotor's magnetic field.
由于考虑了温度对定子电阻阻值的影响，提高了u-i模型在低速运行时磁链观测的准确度。
U-I flux linkage model can be set exactly at low speed for considering the effects of temperature to stator resistance.
并且进行编译调试，验证了电压计算、转子磁链观测以及SVPWM输出等子程序的正确性。
The system proved its validity of subprograms which include voltage calculation module, rotor magnetic chain observation module and SVPWM output module.
并且进行编译调试，验证了电压计算、转子磁链观测以及SVPWM输出等子程序的正确性。
The system proved its validity of subprograms which include voltage calculation module, rotor magnetic chain observation module and SVPWM output module.
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