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。
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。
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。
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。
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。
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 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。
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。
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。
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