The study on speed sensorless is an important research field.
无速度传感器技术的研究是一个很重要的方向。
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 problems concerning speed sensorless control in high-power electric traction drives was studied.
研究了无速度传感器控制技术在大功率电力牵引传动系统中应用问题。
The direct torque control technology based on speed sensorless had become the current researching hotspot of AC drive.
因此，基于无速度传感器的直接转矩控制技术成为目前交流传动的研究热点。
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。
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。
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。
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。
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。
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。
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。
An improved rotor flux estimator based on voltage model was proposed for speed sensorless field-oriented vector controlled induction motor drives.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
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。
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 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。
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。
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。
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。
The speed sensorless technique which can simply the hardware structure of the variable speed system and reduce the system cost is a very hotspot of current research works.
无速度传感器技术能够简化调速系统的硬件结构，降低系统的成本，是近年来交流调速领域的研究热点。
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 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。
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。
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。
Sensorless speed observation can increase system redundancy effectively and can reduce the hardware design complexity, which becomes a focus of current research works.
无速度传感器转速观测能有效提高系统的冗余，使系统硬件设计得以简化，是目前电机控制研究热点。
Sensorless speed observation can increase system redundancy effectively and can reduce the hardware design complexity, which becomes a focus of current research works.
无速度传感器转速观测能有效提高系统的冗余，使系统硬件设计得以简化，是目前电机控制研究热点。
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