The veracity of rotor flux orientation is also improved though the speed estimation.
通过对转速的估计，间接矢量控制中转子磁场定向的准确度也大大提高。
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 speed adaptive scheme of speed estimation is obtain utilizing Lyapunov's stability theory.
定义了李亚普诺夫函数，根据其稳定性理论确定了速度自适应律。
An improved speed estimation method is proposed based on the speed of model reference adaptive system.
根据模型参考自适应的速度推算，提出了一种改进的速度推算法。
Meanwhile, a slight AC component was added to excitation current to decoupling speed estimation and rotor resistance.
同时，为了使转速估计和转子电阻的辨识解耦，在励磁电流处叠加了小幅交流分量。
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。
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 accuracy of vehicle reference speed estimation is crucial to the estimation of nominal yaw rate and thus to the judgment of the vehicles dynamic state.
参考车速的计算准确与否直接影响名义横摆角速度的估算是否准确，从而影响对车辆运动状态的判断。
A new general arithmetic to design speed estimation arithmetic of asynchronous motor based on the absolutely stability theorem of nonlinear system is introduced.
基于非线性控制系统的绝对稳定性定理，提出了一种新的通用异步电机转速自适应辨识方法。
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。
A rotor flux oriented control scheme is implemented in a digital signal processor system to demonstrate the robustness of the speed estimation to parameter variations.
在数字信号处理器系统演示的速度估计的稳健性参数变化的转子磁场定向控制计划的实施。
On the basis of studying the speed estimation of direct torque control, a calculate method ameliorated on rotor flux is presented and is applied to the speed estimation.
在深入研究直接转矩控制系统速度辨识的基础上，提出了一种改进的转子磁链计算方法，并应用于系统的速度辨识中。
Simulation results show that the system has better control performance and estimation effect, but the influence of parameters variation on speed estimation error is evident.
仿真结果表明该系统有较好的控制性能和辨识效果，但参数变化对速度辨识误差有明显的影响。
This paper introduces the theory of vehicle speed detection based on loop coil, analyzes the present speed estimation methods using the basic outputs of single loop detectors.
简述了基于环形线圈车速检测的基本原理、目前利用单线圈检测量进行车速估计的方法。
A high precision and high performance servo-drive system needs a rotating speed estimation algorithm which has high accuracy, fast response and high resolution in a wide range.
高精度高性能的伺服驱动系统需要在宽范围内有精度高、响应快及分辩率高的转速估计算法。
The simulation results show that the proposed method can improve system's speed estimation, and it is effective for promoting the efficacy of friction and deadzone compensation.
仿真结果表明：该控制方法在提高系统速度估计精度、改善摩擦力和死区补偿效果等方面具有很好的效果，为直流伺服的系统设计提供了一种较好的方法。
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。
This paper presents a model of speed estimation for the direct torque control system. This model which has high response performance is based on the analysis of the theory of DTC.
本文在分析感应电动机直接转矩控制理论的基础上，推导出电机瞬时转速的估算模型，该估算模型具有快速跟踪真实值的优点。
The authors analyze the influence in vector controlled induction machine caused by parameter variation and main flux saturation affects speed estimation of adaptive state observer.
在矢量控制感应电动机系统中，当电机参数发生变化，或出现磁路饱和时，将会影响速度控制的准确性，使速度观测器精度受影响。
The experiment method on sensorless speed estimation in DC motor and three special cases of DC motor with different number of poles and different number of commutator bars were presented.
介绍了直流电动机无传感器测速的实验方法，并选取了三台不同结构的直流电动机进行实验。
The sampled stator voltages and currents were conversion to digital quantity and given to speed estimation system for estimating speed, then contrast it with the actual measured motor speed.
将采样得到的电机定子电压和电流转换为数字量后输入到转速估计系统来估计转速，并跟实际测得的转速进行对比。
Methods 243 seafarers and 89 college students in navigation department were selected to undergo speed estimation under 4 experimental conditions with EP509 speed perception testing instrument.
方法用EP509速度知觉测试仪对243名海员和89名航海专业的学员进行了4种实验条件下的速度估计测试。
The real vehicle tests indicate that the filtered wheel speed signal has small time delay and quick response with relatively ideal smoothing effects and can be used for direct speed estimation.
实车试验表明，滤波后的轮速信号延时小，响应速度快，平滑效果比较理想，可以用来直接估计车速。
Then the paper presents a software framework for automatic identification of traffic situations, along with detailed analysis on real- time calculation module for average travel speed estimation.
设计了交通状态自动判别软件构架，对平均行程车速实时估计算法模块进行了详细分析。
It introduces many kinds of speed observe models especially, then selects the speed estimation scheme based Kalman filter after comparing a great deal of schemes of distinguishing rotational speed.
重点介绍多种速度观测模型，并在比较诸多速度辨识方案后，采用基于卡尔曼滤波的速度估计方案。
Estimation of the maximum Doppler spread or, equivalently, the speed of the mobile, is of an essential importance for the optimization of receiver algorithms.
估计最大多普勒频移或者是移动台的速度对于优化接收机的性能至关重要。
The experimental results show that this method has the advantages of robustness, global optimality and high convergent speed and it is feasible for optical flow estimation of nonrigid body.
实验结果表明：本方法具有鲁棒性好、全局搜索能力强、收敛速度快和可用于非刚性体运动估计等优点。
The occlusion paradigm was applied to investigate the time-to-collision (TTC) estimation of full-time bus drivers under the conditions of vehicle types, speed and directions of the moving objects.
本研究采用遮挡范式，考察了专职公交车驾驶员对不同类型、速度和方向运动物体的碰撞时间(TTC)估计。
From the analysis results it is shown that the computation speed of the algorithm can be increased by applying measurement transformation technology, but the estimation accuracy will be sacrificed.
从文中分析可以看出，量测变换技术的应用虽提高了算法的运算速度但牺牲了估计精度。
From the analysis results it is shown that the computation speed of the algorithm can be increased by applying measurement transformation technology, but the estimation accuracy will be sacrificed.
从文中分析可以看出，量测变换技术的应用虽提高了算法的运算速度但牺牲了估计精度。
应用推荐