查询词典 control vector

Part: two It gives the shaping-pulse in the time field to achieve the aim of the quantum control and adopts the Bloch vector to analyses the dynamic process of the absorption, dispersion and reflection index.

这项工作的意义在于通过合适的选择调制场可以达到预期的相干控制目的。

Based on the basic control theory of permanent magnet synchronous motor,the function of zero voltage vector in the control is analyzed.

摘 要：介绍了永磁同步电动机直接转矩控制基本控制理论，分析了零电压矢量在控制过程中的作用。

Based on two kinds of control strategies of VSR under unbalanced grid condition,the introduction of a new VSR control strategy featuring undamped -oscillation that simplifies the controller structure and effectively improves VSR"s performance under unbalanced grid condition.· A systematic description of the state switching in trilogic PWM signal generation of three-phase CSR by using the conversion between bilogic and trilogic switching functions.· Referenced to the CSR"s trilogic PWM signal generation, an approach to achieve low-stress natural commutation of switching devices by reshuffling the vector composition sequence, resulting reduced switching loss.

在研究了两类电网不平衡时的VSR控制策略基础上，提出了一种新型的基于无阻尼振荡控制器的VSR不平衡控制策略，在简化控制结构的同时，有效地改善了电网不平衡时的VSR控制性能；·通过二、三值逻辑开关函数间的转换，系统地描述了三相CSR三值逻辑PWM信号发生中的状态切换；·结合三相CSR三值逻辑PWM信号发生规律，提出了通过调整矢量合成顺序而使功率管获得自然换相的低电压应力SVPWM控制，从而有效地降低了功率管的开关损耗。

For the particularities of high-speed maglev train, rotor fluxed oriented vector control is investigated. And the control strategy is testified to be viable by simulation and experiment.

针对高速磁悬浮列车运行的特殊情况，重点研究了基于转子磁场定向的矢量控制策略，并利用MATLAB Simulink建立了仿真模型进行了仿真，最后应用于上海1.5km试验线进行了实验，验证了控制方法的有效性。

According to the principle of vector control system, a simulation model of SPWM inverter - fed induction machine and its control system with the reference frame fixed to the rotor is established in this paper.

该文根据感应电机矢量控制的基本原理，基于MATLAB／SIMULINK构造了电压型SPWM逆变器供电的感应电机按转子磁场定向的矢量控制系统的仿真模型。

Finally, the control method of structure response vector reconstruction is applied to the vibration active control of the layer board made in complex materials on the satellite antenna. It is showed that this method is effective.

最后把结构振动响应向量重构控制方法应用于层板式复合材料卫星天线的实际振动控制中，验证了该控制方法的有效性。

The ship electric propulsion system that we are going to discuss consists of the following parts: six-phase double Y winding shifted by 30°synchronous motor, diode clamped three-level inverter, fixed pitch propeller and control installment of electric propulsion systems based on air-gap-field orientation vector control.

本论文所研究的船舶电力推进系统各个组成部分分别是：双Y移30°六相电励磁同步电动机、二极管嵌位式三电平逆变器、定距螺旋桨船舶推进器和采用基于气隙磁场定向矢量控制策略的电力推进系统控制装置。

In accordance with the characteristics of electrically excited six-phase synchronous motor, the control system based on air-gap-field orientation vector control is adopted in this paper.

针对电励磁六相同步电动机的特点，建立了与之匹配的基于气隙磁场定向的矢量控制系统并进行了研究。

In accordance with the characteristics of electrically excited six-phase synchronous motor, the control system based on air-gap-field orientation vector control is adopted in this paper.

针对电励磁六相同步电动机的特点，建立了与之匹配的基于气隙磁场定向的直接高温线出线单头电热管矢量控制系统并进行了研究。

Firstly, the control of reentry phase and the model of RCS jets are presented. Then the flight control system is divided into two subsystems based on the time-scale separation principle. The fast states subsystem corresponds to the three body-axis angular rates, the slow states subsystem controls the angle-of-attack, sideslip angle and the rate of the bank angle about the velocity vector. Lastly, the proportional-plus-integral feedback is designed to increase the system robustness.

首先，分析了SRLV再入段的数学模型，并给出了反作用推力控制系统的控制模型；其次，将非线性动态逆方法与时标分离原则相结合，考虑飞行器姿态控制系统的外环角回路的慢变特性和内环角速度回路的快变特性，独立设计了两个回路的控制律；最后，为了增强系统的鲁棒性，分别在两个回路中引入了比例－积分反馈，有效地抑制了干扰力、力矩和非线性对消带来的逆误差。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。