查询词典 motor control

Therefor, step motor can be used as executive component in open-loop control system, which simplifies the control system deeply.

步进电动机是数字控制系统中的一种执行元件，其功能是将脉冲电信号变换为相应的角位移或直线位移，即给定一个脉冲电信号，电动机就转动一个角度或前进一步。

ABSTRACT The researches of this thesis are carried out around the development of high performance machine tool spindle permanent magnet synchronous motor and its drive system. Five parts are included: First of all, concerning the operating characteristics of the machine tool spindle drive system, the optimum current control strategies of spindle PMSM are determined; The design rules of spindle PMSM's key parameters are summarized, based on the study on the influences of the design parameters on the performances of the PMSM operating at different current control strategies; The practical methods to improve the flux-weakening ability of the PMSM are presented; Based on the analysis and comparison of the operating performances of PMSM with different rotor structures, a novel PMSM rotor structure, which is of excellent mechanical performance, suitable for fluxweakening operation and can improve the torque output capacity in the same time, is presented.

本文围绕高性能机床主轴永磁同步电动机及其传动系统的设计研究展开，所做工作主要包括五部分：首先，确定了主轴永磁同步电动机定子电流的最优控制策略；通过对不同控制策略下主要设计参数对主轴永磁同步电动机性能影响的计算研究，总结了参数设计规律；提出了永磁同步电动机弱磁扩速的实用措施；在分析比较不同转子磁路结构电机的性能，尤其是弱磁扩速能力的基础上，提出了一种机械性能优越，易于弱磁扩速，同时能保证电机恒转矩运行时的转矩输出能力的新型转子磁路结构。

Through the theory analyses of PMSM timing and the research of field orientable control, this paper theoretically prove another great achievement of field orientable control in the fields of AC motor timing.

本文通过对永磁同步电动机调速的理论分析，以及磁场定向控制的研究，从理论上证明了磁场定向控制在交流电机调速领域上的又一次重大发展。

The invention provides a system used for recycling urban automobile-washing water, which is a system formed by organic combination of a pretreatment unit, a mechanical treatment unit and a control unit, wherein, the pretreatment unit comprises a fence and a sedimentation tank, and chemical treatment; the fence is arranged on an inlet of the sedimentation tank; the mechanical treatment unit adopts a centrifuge and is arranged on an outlet of the sedimentation tank; and the control unit comprises a peripheral circuit, a singlechip and a variable-frequency motor.

本发明提供的城市洗车用水循环利用系统，是由预处理、机械处理和控制单元的有机组合来的系统，其中：预处理单元包括栅栏以及沉淀池和化学处理，栅栏设置在沉淀池的入口处；机械处理单元采用离心机，它设置在沉淀池的出口处；控制单元包括外围电路、单片机和变频电机。

An automatic balancing head employing permanent magnetic difference frequency motor is designed in the paper, to realize a non-contact transmission of control signal and driving energy between a control element and the balancing head.

李勇设计了使用永磁差频电动机的自动平衡头，实现了控制单元和平衡头之间控制信号和驱动能量的无接触传递。

An automatic balancing head employing permanent magnetic difference frequency motor is designed in the paper, to realize a non contact transmission of control signal and driving energy between a control element and the balancing head.

设计了使用永磁差频电动机的自动平衡头，实现了控制单元和平衡头之间控制信号和驱动能量的无接触传递。

The Permanent Magnet Synchronous Motor vector control system based on fuzzy control is the research object in this paper.

本文研究的是基于模糊控制的永磁同步电机矢量控制系统。

MCU control motor acceleration and deceleration of the language, more practical control unit.

详细说明：51单片机控制电机加减速的语言，比较实用的控制单元。

Jiangsu Asia and China with our own property master automotive electronics control the core technology for rapid development of a new motor vehicle electronic control system products, the domestic automobile manufacturers to meet the needs; adhere to the "quality first, customer first" philosophy, to high-quality product quality, good level of technical service and attitude to win customers love and support.

江苏亚华掌握具有自主产权的汽车电子控制核心技术，可快速开发新的汽车电子控制系统产品，满足国内汽车制造厂商的需要；坚持"品质第一、顾客至上"理念，以优质的产品品质、良好的技术服务水平和态度，赢得顾客的喜爱和支持。

The project required to apply vector control method to multiple motor drive system, and propound suitable control method for the system.

该项目研究成果将对电力牵引中双电机调速系统电机控制模型选择提供理论与实验依据。

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。