电动机

The system adopted active tracking,namely calculate the input angle of the tracking device in advance,the angle is correspondent to the sun position some moment.Photoelectric sensors react the sunlight that putting on different position of the platform, feedback electrical signal.Then single-chip applys the subprogram and sends out pulse to step motors according to the signals,can control the rotate angle and direction of the step motor. The mechanism has realized the automatic track to the sun, so that the trackers top flat board can be always vertical to the sunlight and arrive the furthest receiving energy.

系统采用主动式跟踪，即预先计算好对应于某时刻太阳位置的跟踪机构的输入角度，通过跟踪器上平台不同位置上摆放的光电传感器感受该太阳位置的光照，反馈回电信号，单片机根据该信号调用子程序发出脉冲对步进电动机的转动角度和方向进行控制，实现了机构对太阳的自动跟踪，使跟踪装置的上平台始终处于垂直于光照方向，达到了能量最大限度的接收。

Digital signal processor with high speed arithmetic and logic operation is the base for its digital realization. In this paper, it introduces the principle of direct torque control and the character of TMS320LF2407 digital signal processor. At the same time, it gives the software and hardware design of direct torque control system for asynchronous-motor based on the TMS320LF2407 DSP.

本文介绍了直接转矩控制的基本原理及TMS320LF2407 DSP的特点，给出了以TMS320LF2407 DSP为核心的异步电动机直接转矩控制系统的设计方案及软硬件的实现，同时对直接转矩控制系统进行了实验和仿真，验证了直接转矩控制技术的优良性能。

After we analyzing the model of BLDCM, the FNN control which adopts Kalman filter arithmetic is applied in the speed controller.

在分析了直流无刷电机数学模型的基础上，将采用了卡尔曼滤波学习算法的模糊神经网络控制应用于直流无刷电动机速度控制器。

Finally, based on the analyzed results of the effect of armature reaction on the e.

最后，根据电枢反应对电势谐波成分影响的分析结果，本文介绍了一种间接力矩检测方法，在此基础上，给出了一种间接力矩反馈控制的无刷直流电动机系统。

Series 78ZYT DC PM Motor is our new design used for auto assistor , auto valve control, or for

78ZYT 系列直流永磁电动机是我公司开发的新系列产品。可用于汽车加速器、自动阀门控制

Series 78ZYT DC PM Motor is our new design used for auto assistor, auto valve control, or for driven or implementanry element of other purposes.

概述78ZYT系列直流永磁电动机是我公司开发的新系列产品。可用于汽车加速器、自动阀门控制等装置的驱动元件，也可用作其他驱动或执行元件。

Fault Detection of Asynchronism Motor Based on Genetic Neural Networks.

基于遗传神经网络的异步电动机故障诊断研究。

The database of asynchronism motor which is made of ACCESS could realize the communication between the date base and VB.

ACCESS的异步电动机数据库管理软件可以实现数据库与VB之间的通讯方法。

Based on the mathematical model of 4C asynchronism motor, a novel method for modeling and simulation of AC asynchronism motor control system were proposed.

在交流异步电动机数学模型的基础上，建立控制系统仿真模型，并设计实际的数字电机控制器。

Keywords: asynchronous motor; transistor;computer control; SPWM inversion

关健词：异步变频电动机；变频器；SPWM逆变；绝缘栅双极性晶体管；微机控制。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。