因此，非常有必要对定子电阻进行在线辨识。
该辨识器结构简单，辨识的定子电阻误差较小。
The estimator is simple in construction and the error of stator resistance is small.
定子电阻辨识环节的设计采用了人工神经网络技术。
The stator resistance identification unit is designed by using a neural network.
在低速时，定子电阻对定子磁场定向控制影响较大。
In low speed, stator resistance directly affects the performance of stator flux oriented control system.
这部分的主要内容是：1、磁通观测和定子电阻的辨识。
This part mainly refers to three aspects:1. The observation of the flux and the identification of the stator resistance.
其中五阶状态方程仅忽略了定子电阻，具有较高的精度。
Since in the 5th order state equation only the stator resistance is neglected, the equation is of comparatively high accuracy theoretically.
该策略在定子电阻变化较大情况下，仍具有高控制精度。
The scheme was free of the affect of stator resistance variation and was with high accuracy even though a big change of resistance.
该估计器在适应定子电阻和抑止噪声积累方面优于U—I法。
The estimator outperforms the U-I model on stator resistance adaptation and noise accumulation restraint.
本文提出了一种新方法，表面安装的永磁同步电机的定子电阻估计。
The paper presents a novel stator resistance estimation method to a surface mounted PMSM.
通过将定子电阻的辨识值反馈，减小了定子电阻变化对系统性能的影响。
The influence on the system performance is reduced by feeding back the identification value of the stator resistance.
在永磁同步电动机直接转矩控制中，定子电阻是一个需要精确给定的参数。
The stator resistance is an accurate parameter used in direct torque controlled(DTC) permanent magnet synchronous machines(PMSM).
直接转矩控制系统在低速运行时，电机定子电阻的变化影响了系统的性能。
The change of the stator resistance of induction motor will greatly effect the performances of direct torque control (DTC) system at low speeds.
永磁同步电机直接转矩控制受定子电阻变化影响，进而影响调速系统的精度。
The direct torque control for permanent magnet synchronous motor is affected by the variation of stator resistance, and consequently the accuracy of speed adjusting system.
介绍一种基于模糊控制理论的定子电阻辨识器的直接转矩控制交流电机调速系统。
This paper presents a kind of direct torque control with a stator resistance estimator for an AC motor speed-governing system based on fuzzy logic control.
感应电机定子电阻瞬时值受诸多因素的影响，且无法建立精确的数学模型去求解。
The stator resistance of an induction motor is affected by many different elements, and the exact math model can not be established for calculation of the instantaneous resistance.
因此，为了能更精确的估计电机转速，设计了定子电阻和转子电阻的在线辨识模块。
Therefore, in order to estimate speed more accurately, blocks of stator resistance and rotor resistance online identification were designed.
如何提高定子电阻的观测精度是改善无速度传感器直接转矩控制系统低速特性的关键。
How to enhance resistance detector precision is the key to improve the low-speed performance of DTC system.
最后，探讨了旋转、脉动高频电压信号注入法下定子电阻对转子位置估算影响的问题。
Finally, the stator resistance effect of rotor position estimation in high frequency voltage signal injection is investigated.
该模型易于实现、实时性较好、能够克服低速状态下定子电阻变化及系统参数变化的影响。
This model is carried out easily to avoid the harmful influence of the change of stator resistance and system parameters under low speed situation.
建立了一种新型的全阶自适应状态观测器，提出了基于观测器的速度和定子电阻辨识方案。
This paper presents a novel full-order adaptive state observer. An adaptive identification scheme based on the observer for speed and stator resistance is proposed.
参考模型中不含定子电阻，并且避免了纯积分运算，因而在宽速度范围内具有较好的鲁棒性。
Stator resistance and pure integration are removed from the reference model, resulting in robust performance in wide speed range.
在直接转矩控制系统中，异步电动机定子电阻为一变化值，从而影响了控制系统的低速性能。
The stator resistance of asynchronism electromotor in direct torque control system, is a variable value which influence the low speed performance of the system.
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.
在直接转矩控制中定子电阻是一个十分重要的参数，因此检测异步电机的定子电阻值是非常重要。
Stator resistance is a significant parameter in the system of DTC; Therefore, it is important to measure the stator resistance of asynchronous motors.
在此基础上，提出定子电阻整定的定子磁链估计方法，并建立一个定子磁场定向直接转矩控制的仿真系统。
On the basis of the scheme, a stator flux estimate technique based on stator resistance compensation is also presented, and the simulation system of the direct torque control project is established.
仿真结果表明了模糊神经网络观测器可实现对定子电阻的精确检测，从而提高直接转矩控制系统的低速性能。
Simulation results show that this fuzzy-neural network estimator can precisely measure the value of resistance and improve the low-speed performances of DTC system efficiently.
文中比较了两种温度监测方法，提出了一种新的定子电阻估计方法，从而可以直接得到电机定子绕组的温度。
After comparing two temperature monitoring methods, a new stator resistance estimation method for stator winding temperature monitoring is presented.
本文介绍了一种可互换模型参考自适应方法实现对电机转速和定子电阻的辨识，并将其应用于异步机的无速度传感器直接转矩控制中。
A mutual model reference adaptive method for the rotor speed and stator resistance identification is proposed in this paper to implement a speed sensorless direct torque control of induction motors.
传统的直接转矩控制采用六边形磁链控制或六区间的圆形磁链控制，造成转矩脉动大，而且当考虑定子电阻压降的影响时，其区间选择存在缺陷。
Traditional DTC uses hexagon flux control or six-section circle-flux. When the voltage of stator resistance is considered, its section choice has defect.
分析中考虑了定子电阻及换相期间反电势变化的影响，指出了忽略定子电阻后对分析的精确度带来的影响及主回路设计时所应注意到的一些问题。
The effects on accuracy of analysis and the problems that should be considered in the design of inverter circuit after neglecting the stator resistance are indicated.
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