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。
At the same time, the influence on precision of estimated speed is also analyzed when the rotor resistance changes.
同时，也分析了转子电阻变化对速度辨识精度所产生的影响。
The experimental results show the estimated speed can trace the actual speed, and the system has stable performance.
实验结果表明，估计转速基本能跟踪实际转速变化，系统性能稳定。
When the estimated speed converges to the actual rotor speed, the rotor flux observed converges to its true value, which can be used in direct field orientation control (DFOC).
当电机转速的估计值收敛于转速的真实值时，观测的转子磁链也收敛于其真实值，可将其用于直接磁场定向控制中。
And in Arkansas, an estimated 100,000 fish went belly-up the day before 5,000 blackbirds slammed into roofs, mailboxes and the ground at full speed.
而在阿肯色州，估计有100000条鱼翻了白肚皮，而第二天有5000只画眉全速撞死在屋顶、邮箱和地面上。
Based on the data, the researchers created a chart, much like a growth curve, which estimated life expectancy based on a person's age, gender and walking speed.
基于收集的数据，研究员绘制了一张表，类似于生长曲线，根据一个人的年龄，性别和步速推测其生命期。
Fortunately, the correct cutting speed can be estimated with reasonable accuracy from tool-life graphs or from the Taylor tool life Relationship, provided that necessary data are obtainable.
幸好，正确的切割速度可以根据刀具寿命表或者刀具寿命泰勒方程估算出来，并有一定的合理精度，如果在必要的数据都具备的前提下。
High speed rail products have a huge market space, not only to adapt to a wide range of statistics, but also the market capacity can not be estimated.
高速护栏板产品拥有巨大的市场空间，不但适应范围广无法统计，而且市场容量大无法估算。
Using the "electrical steady state" operation concepts, the actual rotor position as well as the motor speed can be estimated accurately during transit states.
该方案将电气稳态操作概念引入电机的状态估计中，有效解决了暂态过程中转子速度、位置估计不精确的问题。
The stator flux is estimated by adaptive compensated voltage model, and the speed is estimated with PI adaptive method.
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。
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 order to accelerate detection speed, video images are divided into blocks. Each block motion orientation is estimated by block matching methods.
为了加快检测速度，将视频图像分割成大小相等的块，并估计每个块的运动方向。
Period characteristics of radiated noise at high frequency is investigated by a method based on short time Fast Fourier Transformation, and propeller speed is estimated.
用短时傅立叶分析的方法研究了辐射噪声在高频段时频变化的周期性，估计了目标的螺旋桨转速。
The team estimated the mass by observing the speed of a representative sample of stars in each galaxy.
研究小组通过观测每个星系中一个代表性恒星的旋转速度，来估算星系的质量。
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。
The present study assessed the effects of visual search, attention span, spatial working memory span, multi-target tracking and speed estimated on driving-related abilities of the PTSD patients.
本文从注意广度、空间记忆广度、多目标追踪、视觉搜索以及速度估计五个方面对PTSD患者的驾驶相关能力进行了研究。
The position and speed feedback signal estimated is generated by EKF.
由ekf产生位置及速度反馈信号估计值。
The rotor speed observer takes the outputs from the second current observer and the rotor flux observer as its inputs and generates the estimated rotor speed as the output.
转子磁链观测器以两个电流观测器和速度观测器的输出作为输入，估计转速反馈到第二个电流观测器和转子磁链观测器。
The amplitude and phase is estimated respectively through a double integrator close-loop, in stead of vector of flux, with angular and speed as feedback.
此方案以估计出的位置角为反馈量，采用闭环双积分结构，分别估计了定子磁链的幅值和相位。
For a vector control of a speed sensor less induction motor drive system, a novel speed estimated method using an extended Kalman filter is proposed.
本文针对无速度传感器异步电机矢量控制系统，提出了一个基于卡尔曼滤波器的异步电机速度辨识方法。
It analyses analyzed the colors of hardened steel under the conditions of the high-speed cutting by the thermal oxidation method, and the cutting temperatures are estimated.
根据实验观察，采用热氧化法对高速切削的淬硬钢切屑成色进行分析，以此判断在切削过程中切屑经历过的切削温度。
The load disturbance is estimated and compensated by the speed controller, which effectively removes the static tracking error that would be caused by the disturbance without compensation.
通过速度控制器对负载扰动进行估计和补偿，消除了负载扰动可能带来的稳态跟踪误差。
The random stress of torsion rod spring may be calculated after road surface, vehicle speed arid constructional parameters are given, and service life may be estimated according to P-S-N curve.
在给走路面、车速、结构参数后，可计算出扭杆的随机应力，并根据P - S - N曲线估计出扭杆的寿命。
Simulation results indicate that rotor position and speed could be precisely estimated by using this method. Dynamic and steady state performances are good.
仿真结果表明，这种方法能够准确估计出电机的转子位置和转速信息，动静态性能良好，并基于此实现了最大功率追踪控制。
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。
The utility model solves the defect that stuffing for pipes is estimated according to an instable and inaccurate method of time and speed fixing and ensures even and accurate spice adding.
本实用新型解决了由于原来用定时、定速的不稳定、不精确的方式对管道进行预填充所带来的问题，保证了加香的均匀和精确。
The utility model solves the defect that stuffing for pipes is estimated according to an instable and inaccurate method of time and speed fixing and ensures even and accurate spice adding.
本实用新型解决了由于原来用定时、定速的不稳定、不精确的方式对管道进行预填充所带来的问题，保证了加香的均匀和精确。
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