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。
Thus, if the matching reference blend is made up of 15% nheptane and 85% isooctane, the test sample is rated 85 motor or research octane number, according to the test method used.
这样,依照实验方法,如果匹配的参考混合物由15%的正庚烷和85%异辛烷组成,那么按照所用的实验方法,对比实验样本的辛烷值就是85 。
According to the reduced order model of induction motor, a model reference adaptive speed identification algorithm is obtained from measured motor stator voltages and currents.
根据异步电机的数学模型,利用易于检测的电机定子电压和电流得到电机转速的模型参考自适应辨识算法。
Numerical results show that the recurrent back propagation control neural network controller has good effectiveness for various kinds of reference speeds of the ultrasonic motor.
模拟实验结果表明,递归反向传播控制神经网络对多种形式的超声马达参考速度都有很好的控制效果。
This thesis offers a theory to run the induction motor economically, and is a reference in practice.
本文为异步电动机的经济运行提供了理论依据,对生产实践有重要的参考作用。
The effect of nonlinear load and the filtering action of motor-generator is analyzed, and an effective analytic tools and test reference for ship medium frequency power system is supplied.
验证了非线性负载对中频电网的影响同时分析了旋转变频机组的滤波作用,为舰用中频电网的分析提供了有效的分析工具和试验参考。
Proceed from the analysis of loads and characteristics of the motor, the reference opinion about the selection of DC motor for electric drive drilling rig is given.
从分析负载及电动机特性出发,提出直流电动机选型参考的意见。
Freely available reference designs are provided to give customers a head start on designing their own system and help reduce the time needed to move a motor control system from concept to production.
免费提供的参考设计提供给客户一个良好的开端在设计自己的系统,并有助于减少到电机控制系统移动从概念到生产所需的时间。
The model of induction motor was separated into mechanical and electrical parts based on static reference coordinate of stator.
基于定子侧静止参考坐标系,把感应电动机的模型分为机械部分和电气部分。
The acidometer was mainly composed of plough blade motor, cleaning plough blade, temperature detecting electrode, stibium electrode, reference electrode and hood.
该酸度计主要由刮板电机、清洗刮板、温度测量电极、锑电级、参比电极、防护罩等组成。
Therefore, the setting parameters of the reference motor factory parameters, and then the actual measurement decision.
所以,该设定参数最好是在参考电机出厂参数后,再实际测量决定。
Therefore, this research would provide a instructive reference straight for the structure design of thrust-vectoring motor and jet et vane.
研究的结论可以为推力矢量发动机及燃气舵的结构设计提供直接的参考。
Direct Torque Control (DTC) has the advantages of less reference frame commutation-computation and less influence by motor parameter variations in AC drives system.
交流调速中直接转矩控制具有坐标变换运算量小和受电机参数变化影响小的特点。
The electric motor manufacturing workmanship abroad was introduced, and then, diffenece of the workmanship between at home and abroad was analyzed, providing the reference to the motor industry.
文章介绍国外电机主要生产工艺,并进行对比分析,对电机生产企业有借鉴作用。
A nonlinear speed controller for permanent magnet synchronous motor based on adaptive backstepping control was designed, which USES second-order filter to smooth the speed reference.
设计了一种基于自适应反步控制的永磁同步电动机非线性速度控制器,采用二阶滤波环节平滑速度指令。
The model can be reference for the selection of the hydraulic pumping unit motor and analysis of mechanical characteristics of other hydraulic pumping units charactered power recovery.
模型为该型液压抽油机电机选型以及其他功率回收型液压抽油机机械特性分析提供参考。
Space vector is a very important conception in electrical machine analysis. This paper discusses the reference frame conversion used in high performance motor control based on space vector.
介绍了空间矢量这一在电机分析中重要概念,在此基础上讨论了高性能电机控制中所需的各种坐标变换。
To verify the accuracy and reliability of the system, contrast tests on reference sound power source and small motor are performed respectively in a semianechoic chamber and a common room.
为了验证噪声检测系统的精度和可靠性,在半消声室和普通房间内,分别对标准声功率源和小型电机作声功率对比测量试验。
The result shows that the network control of brushless DC motor comes true, it provides reference for the more complex long-distance control.
结果表明此无刷直流电动机的网络控制方案可行,为实现更复杂的远程控制提供了参考。
The observer detects the rotor flux components in the two-phase stationary reference frame by the motor electrical equations.
该观测器通过电动机电方程序来检测两相静止参考坐标中的转子磁通分量。
The vector control mathematical model of linear induction motor is established under the synchronization reference frame.
在同步旋转坐标系下,建立了直线感应电动机的矢量控制数学模型。
Using the theory of reference frame and the way of quantity standard disposal make the mathematical model of induction motor, and simulate it with MATLAB, then come to the conclusion.
本文应用参照系理论,并采用标幺化处理方法来建立电机的数学模型,用MATLAB语言进行仿真,做出仿真结果。
The computed torque is taken as reference to control an inductance motor. The induction motor is driven by an inverter to simulate the wind turbine.
然后根据当前的风速和风力机转速来计算风力机的转矩,将此转矩作为转矩指令控制感应电机来模拟风力机,感应电机通过控制逆变器来驱动。
A speed adjuster (52, 105) determines a target rotational speed of the motor corresponding to a predetermined reference transport speed of the film.
速度调节器(52、105)确定电动机的目标旋转速度,该目标旋转速度相应于膜的预定基准输送速度。
The research result gives a reference for selecting parameters of induction motor load model in power system simulation.
研究结果对电动机负荷模型参数选择提供参考。
At last, motor structure optimization was carried out based on analysis mechanics, which may provide valuable reference for the improvement of vertical motor design and its vibration test.
最后,在力学分析的基础上对结构进行优化,为立式电机的改进和振动测试提供了参考。
Based on the finite element simulation technology to carry out the study for theory and structure of screw motor, it will provide some reference for the stator bushing's development and application.
本文基于有限元仿真模拟技术开展了螺杆马达的理论与结构研究,为螺杆马达定子衬套的开发应用提供一些参考。
Based on the finite element simulation technology to carry out the study for theory and structure of screw motor, it will provide some reference for the stator bushing's development and application.
本文基于有限元仿真模拟技术开展了螺杆马达的理论与结构研究,为螺杆马达定子衬套的开发应用提供一些参考。
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