查询词典 motor generator

The design of the device using NC Lathe CA6140 control, part of the main transmission system using AC spindle motor and graded by the pulley driven spindle gearbox, through the inverter and gearbox to achieve sub; Feed System used by stepper motor driven ball screw slowdown after campaign vertical feed system through a gear after the ball screw drive, in the horizontal feed system through two gear-driven ball screw; Tool to automatically transfer tool carrier (4-position), thus achieving automatic tool change; by MCS-51 series 8051 data to be dealt with. from the I / O interface stepper pulse output signal to control the feed rate and itineraries; In order to maintain the function of cutting thread, to the outer end of spindle or other appropriate location loaded pulse generator; Lathe will be transformed into Tailstock manually controlled electric Tailstock.

本设计利用数控装置对CA6140普通车床进行控制，主传动系统部分采用交流调频主轴电动机经带轮及分级齿轮变速箱驱动主轴，通过变频器和齿轮变速箱实现分段无级变速；进给系统采用步进电机通过减速后驱动滚珠丝杠运动，在纵向进给系统中通过一级齿轮减速后驱动滚珠丝杠，在横向进给系统中通过二级齿轮减速驱动滚珠丝杠；刀架改为自动转位刀架从而实现自动换刀；通过MCS-51系列8051单片机对数据进行计算处理，由I/O接口输出步进脉冲信号控制进给速度和行程；为了保持切削螺纹的功能，要在主轴外端或其它适当部位装上脉冲发生器；将车床的手动尾座改造成为可控电动尾座。

Motor torque-speed characteristic and the motor efficency under motor and generator mode is researched by experiment.

实验研究了电机在电动和发电两种状态下的机械特性和系统的效率。

4 When evaporative cooling hydro-generator (generator/motor) is running off-centered instantaneously under accident condition, it shall be 20s if we multiply square of ratio between negative sequence current weightand rated current (pre-unit value) by allowed dissymmetric runtime t (I2/In)2t.

6.4蒸发冷却水轮发电机在故障情况下短时不对称运行时，应能承受的负序电流分量与额定电流之比的平方与允许不对称运行时间 t 之积(I2/In)2t 应为20s 。

The system description is concentrated on units' function. The principle of induction generator describes how to generate electric power from induction motor and the difference between synchronous generator and induction generator. The design of induction generation system is focus on a 80kW biogas induction generation and controlled parallel panel. Finally, the peripheral unit design is interesting in biogas storage tank, hot air duct and safety device .

系统描述针对感应式沼气发电系统所需设备的功能说明；感应发电机原理机针对马应马达与发电机之运转模式说明，并比较同步式与感应式发电机之差异；感应发电系统设计则针对80kW感应式沼气发电系统所需发电机组、保护并联盘设计说明；周边设施包括沼气储袋、引擎热风导管及沼气安全装置。

3 When evaporative cooling hydro-generator (generator/motor) is running under dissymmetric electric power, if current of any phase is not over rated current IN, and ratio between its negative sequence current weight I2 and rated current (pre-unit value) is not over 60%, it shall be working chronically.

5.2.6.3蒸发冷却水轮发电机在不对称电力系统运行时，如任一相电流不超过额定电流 IN，且其负序电流分量与额定电流之比不超过6％时，应能长期运行。

1 Condenser on evaporative cooling hydro-generator (generator/motor) shall be collocated evenly on buttress pier of upper bracket or on concrete wall in generator turbine pit.

1 蒸发冷却水轮发电机的冷凝器尽量均匀的布置在上机架的支墩上或布置在发电机机坑内的混凝土墙壁上。

Firstly, SRM inductance function Land flux linkage function ψ are derived from ANSYS which is used for electromagnetic field analysis. Secondly, the non-linear inductance model and non-linear flux model of switched reluctance starter/generator are finished by MATLAB. Based on the latter, the start characteristic of SRM is studied comprehensively. Finally, on the basis of academic research, we completed the starter/generator stand of test and experimented on a sample motor and then experiment waveforms are obtained which verified the simulation model.

首先利用 ANSYS 软件仿真计算出开关磁阻电机的电感和磁链函数，并以此为基础利用 MATLAB/SIMULINK 建立了开关磁阻起动/发电系统的非线性电感模型和非线性磁链模型，并通过非线性磁链模型对开关磁阻电机的起动特性和发电特性进行了深入分析与研究；最后在理论分析的基础上，通过开关磁阻起动/发电系统试验平台对原理样机进行实验，给出了系统实验波形，并验证了该模型的正确性。

In the condition that the main engine is powerful and the steam boiler has abundant waste gas, the turbine generator brings about enough energy without consuming any gas, therefore the shaft generator runs as the motor to help the main engine push the ship.

在理想情况下，主机功率较大、废气锅炉蒸汽量大，如果船舶用气量不大时，透平发电量足，这时轴带发电机可作为电动机运行，帮助主机推进船舶。

This thesis focuses on maximum-power-point-tracking algorithm applying for wind-turbine generator system. The system includes the serve-motor, induction generator, three-phase full bridge rectifier, buck converter and fixed load. This thesis uses traditional Current Perturbation Algorithm as well as Perturbation Stochastic Approximation Algorithm to implemented with Matlab/simlink and hardware to achieve the maximum power tracking.

本文针对风力发电系统提出最大功率追踪法则，整体系统架构包含了伺服马达、感应发电机、三相全桥式整流器、降压直流转换器和固定负载，并由传统电流型扰动观察法合并扰动近似演算法，进行Matlab/simlink 模拟与电路实作设计来完成最大功率追踪。

The USM is a kind of new electrical motor which develops in recent 20 years, it broke through the traditional concept of electrical motor. It didn"t have the electromagnetism winding and the magnetic circuit, and it didn"t uses the mutually electromagnetism to transform the energy, moreover, the volume of electrical motor is small, the weight is light, the transfer efficiency is high. For it was so small, so light, and so thin, it have begun to use on automobile. But the usage of superconductivity electrical motor is still in the experimental stage at present. The main reason is that the super conductivity material has not realized the high temperature, but with the development of technical, the possibly uses of superconductivity electrical motor in the big horsepower like automobile generator and on actuation electrical motor causes the electrical machinery to be smaller in volume, lighter in weight, and higher in efficiency.

超声波电机是近二十年来发展起来的一种新型电机，它突破了传统电机的概念，没有电磁绕组和磁路，不用电磁相互作用来转换能量，体积小、重量轻、转换效率高，很小、很轻、很薄，在汽车上已经开始使用；超导电机的使用目前还处在实验阶段，这主要的原因是超导材料还没有实现高温化，但是，随着技术的发展，超导电机可能使用在汽车的起动机和驱动电机这些大马力上，使原有的电机体积更小，重量更轻，效率更高。

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。