查询词典 motor-driven

This thesis is main to make use of the representative chip TI company′s TMS320LF2407A DSP which is used for the control of motor to complete the control of the speed,direction parameter and other parameters of DC motor.

本论文主要利用用于电动机控制的代表性芯片TI公司的TMS320LF2407A完成对直流电动机的速度、方向等参数的控制。

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。

A control system of step motor that enable operator to control displacement and adjust velocity discretionarily was designed,using the TMS320LF2407 chip and the step motor drive.

它输出的位移与输入的电脉冲个数成正比，转速与脉冲频率成正比，适用于在数控开环系统中做执行元件，用途十分广泛[1]。

A control system of step motor that enable operator to control displacement and adjust velocity discretionarily was designed, using the TMS320LF2407 chip and the step motor drive.

本文从工程应用的角度出发，以TMS320LF2407 DSP芯片作为控制核心，结合专用步进电机驱动器，设计了一套可同时控制8个电机，且具有位移控制和多级调速功能的步进电机控制系统。

C Braiding machine with 1 motor and 1 headsThe special 32#C braiding machine with 1 motor and 1 head can be applied to braiding all kinds of electric wire and cable, control cable, high-pressure oil hose, water hose, special ropes, elastics, PET drawtube and so on.

单电单头32#C编织机该机型一电单头32#C特种编织机，适用于特种电线电缆、控制电缆、高压油管、水管、特殊绳缆、松紧绳带、PET伸缩网管等。

ABSTRACT: A Rockwell PowerFlex7000 Variable Frequency Drive is used in JiuZHou Electric medium voltage drive test bay as the converter. Because of it belong to the current source drive, it has the function of the four quadrant, it can achieve the energy feedbackmake the motor brake,also has the advanced vector control technology, so it can achieve all kinds of load test, there are no other drives can replace it in simulate motor load. PowerFlex7000 drive has ability to achieve the full load test before the drive leave factory.

摘 要：罗克韦尔PowerFlex7000变频器在九洲中压变频实验站测试系统中作为变流逆变器使用，由于本身属于电流源型变频器，具有四象限运行功能，能够实现能量的回馈和对电机的制动，先进的矢量控制技术，可以实现各种复杂多变的负载特性，在模拟电机负载方面起到了其他变频器无可替代的作用，实现了变频器出厂之前的满负荷测试。

A DC motor driver with constant frequency PWM is developed based on PIC, and the running performance of the DC motor is improved greatly.

另外使用PIC器件完成了单芯片集成式运行电路的设计，实现了直流电机的正常驱动，简化了控制逻辑系统。

In this paper,a novel wire feeding system composed of special motor driver circuit with high frequency and print motor with low inertia was designed,and the performance test were carried out.

采用特制的高频可逆调速电机驱动电路配合低惯量的印刷电机，研制了一种适用于GMAW焊接电源的新型可逆调速送丝系统。

What this paper finished mainly work as follows: Five-phase hybrid step motor driver system with fixed-chopping frequency and constant total current driving is fully described. Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established. The steady modeling of the system is established and studied. Based on the steady modeling of the system, dynamic modeling of the system is studied and single step response characteristic is constructed with MATLAB/Simulink. The simulation results, which is certified by the theory analysis, coincide with the theory analysis.

本文主要完成的工作包括几个方面：对五相混合式步进电动机恒频斩波恒总流驱动系统进行了完整的描述；建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；基于MATLAB/Simulink建立了恒频斩波恒总流驱动系统稳态仿真模型，并进行了仿真；在建立其稳态仿真模型的基础上，对动态模型进行研究，并借助于MATLAB/Simulink工具建立了恒频斩波恒总流驱动系统单步响应特性的仿真模型并对其单步响应特性进行了仿真研究，仿真结果与理论分析相符。

The motor for the EPS system is the key element of the whole system and it combines with a permanent magnetic DC motor and a dry single plate electromagnetic clutch.

转向助力器电机是该系统中的核心部件，它由永磁直流电动机和干式单片电磁离合器两部分组成。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。