控制矢量

This is the closed loop of vector control system using speed sensor.

这是一个有速度传感器的闭环矢量控制系统，观测转子的磁通，提出了磁通观测器和电机解耦控制的结构，建立数学模型，并且用计算机仿真实验证实该控制系统动态特性良好，并对定转子电阻变化具有鲁棒性。

According to the characteristic of matrix converters, strategies for reducing common-mode voltage in current-controlled MC are proposed based on the hysteresis current control and space vector modulation.

在滞环电流和空间矢量复合控制的基础上，针对电流控制型矩阵变换器自身的特点，提出了一种抑制共模电压控制策略。

Simulation results show that the control of slip frequency vector control system has good control performance.

仿真的结果表明采用转差频率控制的矢量控制系统具有良好的控制性能。

Direct Torque Control method is a new control method after Vector Control method.

直接转矩控制技术是继矢量控制技术之后发展起来的一种新型的控制方法。

Compared with Vector Control, the main advantage of DTC is that it directly controls flux and torque.

与矢量控制相比，直接转矩控制的主要优点是直接对电机的磁链和转矩进行控制。

Its thought is to change the model of the asynchronous motor through the coordinate, make it become direct current motor model, divided the electric current vector of the stator into according to the weight of two pieces of direct current with directional magnetic field of the rotor and controls, realize magnetism coherent and torque solve lotus root control , in the hope of the control result of the direct current reaching machine.

其思想就是将异步电动机的模型通过坐标变化，使之成直流电动机模型，将定子电流矢量分解为按转子磁场定向的两个直流分量并分别加以控制，从而实现磁通和转矩的解藕控制，以期达到直流电机的控制效果。

It makes clear that the controlled objects of AC and DC motor systems are identical through vector transformation and current close-loop reconstruction.

本文研究了交、直流传动系统的统一控制策略，明确了经矢量控制变换以及电流闭环改造后的交、直流系统所面临的控制对象的一致性。

ABSTRACT:In 1970's,one method of AC induction motor control called Direct Torque Controlwas raised.

直接转矩控制是20世纪70年代提出的，在80年代中期发展起来的新型电机调速方法，是继矢量变换控制技术之后，且与之并行发展的一种新型的高性能的交流调速传动的控制技术。

The method of slide-mode variable structure control is such a strategy that is characterized of low mathematical model precision, insensitiveness to system parameter variation and external disturbances, omission of parameter identifications, fast dynamic response and easy implementation. These advantages make it suitable to high performance vector controlled AC motor drives.

滑模变结构控制是一种强鲁棒性的控制方法，对系统数学模型精度要求不高，具有快速响应、对参数及外部扰动变化不敏感、无需系统在线辨识，实现简单而且很适合计算机实现等优点，因此，很适合高性能的交流电机矢量控制系统。

In this thesis, firstly, based on the complex vector model of doubly-fed induction generator, the mathematic model is deduced under the synchronous coordinate.

本文首先从双馈电机的复矢量模型出发，建立了在同步坐标系中双馈电机的数学模型，为双馈电机的磁场定向矢量控制提供理论基础。

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。