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.
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。
This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.
在直接转矩控制理论基础上，推导出一种基于定子磁链矢量增量来确定定子参考电压矢量的新型无速度传感器直接转矩控制方案。
In a speed sensorless vector control system, the precision of speed estimation is relied on the precision of motor parameter.
在无速度传感器矢量控制系统中，转速估算的精度在很大程度上依赖于电机参数。
A sensorless vector control method for permanent magnet synchronous motor (PMSM) drive at very low speed was presented.
介绍了一种极低速段永磁同步电机无速度传感器矢量控制方法。
A speed sensorless vector control system of induction motor with estimated rotor speed and rotor flux using a new reduced order extended Kalman filter is proposed.
提出一种估计异步电机转子速度和转子磁链的新型降阶推广卡尔曼滤波器算法，建立了基于此算法的异步电机无速度传感器矢量控制系统。
The speed sensorless vector control of induction motor technology enhances the reliability of AC driving system, and reduces the realization cost.
异步电机无速度传感器矢量控制技术提高了交流传动系统的可靠性，降低了系统的实现成本。
The speed estimation is core question of the speed sensorless direct torque control system.
速度辨识是无速度传感器直接转矩控制的核心问题。
The accuracy of the rotor speed estimation in speed sensorless vector control system of induction motor under load is sensitive to parameter errors of the internal machine model.
在感应电动机无速传感器矢量控制系统中，在负载条件下转子速度估计的精确度对电机内部模型参数误差非常敏感。
In the sensorless control system, a specified high frequency signal is injected in to trace the magnetic anisotropy of the motor, by which we can get the value of rotor speed and position.
研究采用高频注入法的无传感器直接转矩控制系统，通过注入特定的高频信号来追踪电机转子的空间凸极效应，以此得到转子位置和速度值。
Thus, sensorless control strategy which only according the sampling of the current and voltage to estimate the rotor position and speed by specific methods will be widely applied.
因此，在一些特殊及精度要求不高的场合，由只根据采样电流、电压等易测量，通过特定方法估算转子位置和转速的无位置传感器控制策略将得到广泛应用。
The sensorless of induction motor field-oriented control employing stator voltages and currents has difficulty in estimating rotor flux in the low-speed range.
在低速范围内，对无传感器感应电动机进行矢量控制时用定子电压和电流推算转子磁通是比较困难的。
The new three-phase drive control strategy SITRAC combines dynamic torque control, robustness and optimized modulation withselfadjustment and allows speed sensorless operation.
新的交流传动调节方法SITRAC融合动力学、耐用性和具有自调节的最佳调制为一体，其运行可不用速度传感器。
The speed sensorless vector control system was established based on the fundamental equations of induction motor for vector control.
以异步电机矢量控制的基本方程序为基础，构建了一个无速度传感器矢量控制系统。
Because of requiring no speed detecting devices, this method is effective, simple and practical conception for the electrical parameter measurement of sensorless vector control system.
该方法不需要速度检测元件，从而为无速度传感器矢量控制系统的电气参数测试提供了一种有效、可行的方案。
In this thesis, a slid frequency vector control system and a speed sensorless vector control system based on reactive power are investigated and analyzed.
本文研究分析了转差频率型矢量控制和基于无功功率的无速度传感器矢量控制。
A speed sensorless direct torque control (DTC) system that USES TMS320LF2407A DSP as its core is designed in this paper.
本文实现了以TMS320 LF 2407ADSP为控制核心的无速度传感器直接转矩控制系统。
Motor speed was estimated on line base on Lyapunov's stability theory, and in this the speed sensorless direct torque control emulation system was designed.
基于全阶观测器，采用李亚普诺夫稳定性理论对电机转速进行在线辨识，实现了异步电机无速度传感器直接转矩控制系统。
Traditional speed identification methods for sensorless vector control of induction motors are inaccurate due to external disturbances and model errors.
受外部干扰和模型误差影响，异步电机无速度传感器矢量控制中的转速辨识结果往往不准确。
This paper proposes a new method of sensorless vector control for induction motors, in which the motor speed is estimated by both instantaneous reactive power and variation of magnetizing current.
提出了一种异步电机无速度传感器矢量控制的新方法，用瞬时无功功率和励磁电流变化来估计电机转速。
A practical method of designing speed-adjustable system of sensorless vector control which base on PLC hierarchical intelligent control is proposed in this paper.
本文提出了一种实用的基于PL C分级递阶分布式控制的多电机无速度传感器矢量控制调速系统设计的新方法。
Two problems must be solved in the speed sensorless Field Oriented Control of induction motor drive: the speed estimation and rotor flux observation.
异步电机无速度传感器矢量控制系统需解决两个问题：转速的估计和转子磁链的观测。
The software has been programmed with C. Sensorless PMSM dual close-loop vector control with feedback of speed and current are realized.
软件采用C语言编写，实现了无位置传感器控制算法及转速和电流双闭环矢量控制；
Sensorless DC motor close-loop control module include reversing control, current loop regulating, the positive and negative rotational speed controls with speed ring etc.
无传感器闭环控制模块包括换向调节、电流环调节和速度环调节、正反转速控制等功能。
Effective speed identification in low speed and standstill area is an important item for speed sensorless control of asynchronous motor.
对零低速区域速度的有效辨识是异步电动机无速度传感器控制的一个重要课题。
And finally, the compound control method is considered to be the development trend of full speed sensorless control technology.
最后指出复合控制方法是实现全速范围无传感器控制技术的发展趋势。
On the control algorithm, using flux estimation algorithm for motor speed sensorless control, low speed startup strategy of three stage for motor start.
在控制算法上，采用了磁链估计算法实现电机无传感器控制、三段式低速启动策略启动电机。
In this paper, on based research of PCH control of AC motors by research group, speed sensorless control is introduced, then speed estimation of AC motor is realized.
本文在课题组多年来对交流电机pch控制研究的基础上，引入了无速度传感器控制，实现对电动机转速信号的估计。
Nowadays, the speed sensorless vector control system of induction motor is one of the hot topics in the field of electric drive system.
无速度传感器异步电机矢量控制系统是目前电气传动系统中研究热点之一。
Using the estimated speed as feedback signal, we have accomplished the sensorless control of a DC motor.
同时利用观测器之估测转速当成回授讯号，达到无测速计直流马达的速度控制。
Using the estimated speed as feedback signal, we have accomplished the sensorless control of a DC motor.
同时利用观测器之估测转速当成回授讯号，达到无测速计直流马达的速度控制。
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