控制矢量

The performance of speed regulation of AC motor can compare with that of DC motor after the FOC is introduced into AC motor field.

采用矢量控制后交流电机的调速性能可以和直流电机媲美。

Using digital signal processor, TMS320F240, which is special for motor control, we develop a suit of speed adjustable, reliable and highly effective induction drive based on FOC principle.

文中对整个系统的硬件电路和驱动软件的实现都作了详细的介绍，同时采用了一种新型的PWM调制方法一电压空间矢量法来实现对异步电机的控制，提高了能量的利用效率。

In connection with the operation characteristics of the hoist-lower mechanism and frequence control is explained.

本文分析了该起升机构的运行特点，介绍矢量控制变频调速特性。

Based on the concept of space vector, an open loop detecting method for the fundamental negative and positive sequence components as well as the harmonic components is developed, which combining the conventional detecting method based on filters and the concept of space vector. This method can overcome the defaults of the conventional detecting method, and can meet the requirement of the asymmetrical control of HVDC-VSC.

运用自适应干扰对消原理和空间矢量的概念，提出了一种基波正序分量、基波负序分量及谐波分量的自适应检测方法，并进行了详细的理论分析，为研究HVDC-VSC的不对称运行控制奠定了基础。

The system adopts modified space vector pulse width modulating strategy to realize digital system and improve the using rate of generatrix voltage.

海军 92830 部队计量站，海南海口 570203 一种基于DSP的全数字异步电机弱磁控制的设计，系统采用改进的空间矢量脉宽调制策略以实现全数字化系统，以及提高母线电压的利用率。

This paper presents a new sensorless vector control method for induction motor drive at very low speeds.

摘 要：本文提出了一种新型极低速异步电机无速度传感器矢量控制方法。

Using neural network a-th invert system, the induction motor variable frequency speed-regulating system of V/F and vector control can be changed into feigned linear systems.

结合磁场定向的特点，导出了矢量控制运行方式的交流电机变频调速系统的数学模型，并对该系统进行了可逆性分析，证明该系统可逆。

This dissertation is the result of the research and development of a speed-sonserless field-oriented controller system of induction motor.

摘要本论文的研究目标是感应电机无速度传感器矢量控制系统的实现。

Firstly two theoretical basis of Direct Torque Control technique are researched----Field Acceleration Method and instantaneous space vector theory.

首先探讨了直接转矩控制技术的两大理论基础──磁场加速方法与瞬时空间矢量理论。

When converting a CAM motion (X,Y,Z tool tip part position and I,J,K tool axis vector) to the NC tape (e.g.: X,Y,Z machine linear axes position and A,B rotary heads) the application of inverse kinematics makes the output curve completely different from one generated by the CAM system.

当将一个凸轮运动（X、 Y，Z 工具顶端部份位置和我、 J，K 工具轴矢量）转换成收据控制以带子绑起（举例来说： X 、 Y ， Z 机器线性轴位置和 A，B 旋转的头）倒转运动学的申请的时候让输出曲线完全不同一被凸轮系统产生。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。