《自动化专业英语.pptx》由会员分享，可在线阅读，更多相关《自动化专业英语.pptx（37页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、第二讲Introduction to DC Machines 准备课文后的单词 （8 min）第1页/共37页补充词汇DC Machine=DC Motor shunt v.n.steady state n.series n.a.dynamic state n.parallel vt.n.a.excited a.torque n.第2页/共37页补充词汇salient n.a.sinusoidal a.armature n.reluctance mutator n.permeance n.rectifier n.rheostat n.quadrature n.cumulative a.quad
2、rature axis n.第3页/共37页补充词汇versatility n.centerline n.versatile a.stationary a.volt-ampere n.substitution n.stator n.ripple vt.vi.n.symmetrical a.concentrated a.i.e.=that ism.m.f.=magnetomotive force 第4页/共37页Operational Amplifiers 读课文 8 min 分析课文第5页/共37页补充介绍：英文论文的标题与摘要英文论文的标题与摘要 重点突出 言简意赅 一般 10个单词 不超过
3、 16个单词 副标题 标点符号 标题的长度标题的长度 第6页/共37页 举例 （1）Low Frequency Wideband SAM（2）How to Recognize and Translate the Intention of the Source TextA Cultural Consideration in Translation（3）Substitution:The third function of English Punctuation marks 第7页/共37页标题的书写特征标题的书写特征 第一个词及所有实词 首字母大写 虚词 小写 Review and Prospec
4、t of Computer Control System for Aluminum Smelters in China 第8页/共37页标题的书写特征（续）标题的书写特征（续）第一个词 首字母大写 其余均小写On design and realization of the database in the locomotive circuit detector 第9页/共37页标题的书写特征标题的书写特征 （续）（续）所有字母全大写 REVIEW AND PROSPECT OF COMPUTER CONTROL SYSTEM FOR ALUMIUM SMELTERS IN CHINA 第10页/
5、共37页标题的内容特征标题的内容特征 关键词，反映论文的性质和主要内容 研究的手段或方法 Research on Controllability of Magnetic Suspension with High Temperature Superconducting Electromagnet 关键词：controllability，magnetic suspension，high temperature superconducting electromagnet 第11页/共37页标题的语言特征及翻译标题的语言特征及翻译 标题的常用句式 短语 不是整句 动名词、名词短语、介词短语 带疑问词的
6、动词不定式“基于”，“的设计”，“的研究”，“的方法”，“的应用”，“的思考”第12页/共37页举例 Design of a Simple Wireless Powering System 简易无线电供电系统的设计 An Improved All Digital Phase-locked Loop Design 一种改进的全数字锁相环设计 Chaotic Signal Denoising Based on Threshold Selection of Wavelet Transform 基于小波变换阈值决策的混沌信号去噪研究 On the Misconceptions in Translati
7、on Studies and Theories in our country国内翻译界在翻译研究和翻译理论认识上的误区 第13页/共37页标题的修饰语标题的修饰语 带有前置或后置修饰语 冠词、代词、形容词、名词、分词、介词短语 冠词 不定冠词 省略 Distributed and Cooperative Control for Urban Road Network Traffic 城市路网交通分散协调控制 A Both Matched Dynamic Scheduling Algorithm 一种双匹配动态调度算法 第14页/共37页标题的缩略形式标题的缩略形式 可用专有名词的缩略形式 如：T
8、he Study Headway of DTC-PMSM 永磁同步电机直接转矩控制的研究进展 Motorola Motor Controller DSP56F807 Motorola 电机控制器 DSP56F807第15页/共37页标题的专业术语词标题的专业术语词 认真选择 准确翻译第16页/共37页科技论文摘要的特征及翻译科技论文摘要的特征及翻译 The direct torque control schemes of the permanent magnet synchronous motor(DTC-PMSM)are simply introduced in the paper.And
9、the popular scheme is analyzed detailedly.Also,most improved and researched techniques,including motor speed identification and advanced control algorithm used in DTC-PMSM,are introduced and analyzed recently.The future trend of the DTC-PMSM is also given at last.第17页/共37页 科技论文摘要的分类科技论文摘要的分类及内容特征及内容
10、特征 3类：报道摘要（信息型摘要）purpose method result conclusion 指示性摘要（概括型摘要）重点：概述论文的论点、分析过程和结论 信息型与概括型的结合第18页/共37页科技论文摘要的语言特征科技论文摘要的语言特征 时态和语态 普遍事实的背景资料 一般现在时 具有某种研究动向的资料 现在完成时（1）以the paper 作主语 In this paper,we 一般现在时态（2）以The objective of或In this study,we 一般过去时（3）当描述实验方法时 一般过去时（4）当涉及到一些算法、数学分析方法 一般现在时第19页/共37页举例 T
11、his paper presents a new algorithm called both matched algorithm which is suitable to independent job scheduling on heterogeneous processor platforms.本文提出了适于异构环境独立任务调度的双匹配动态调度算法。Using digital signal processor(DSP),TMS320F240,we develop one frequency conversion adjustable-speed system based on FOC pr
12、inciple.以电机控制专用的DSP芯片TMS320F240为核心，设计开发了一套基于矢量控制的变频调速系统。第20页/共37页科技论文摘要的语言特征科技论文摘要的语言特征 名词化结构(1)The substitution of the new equipment for the old would result in a considerable increase in production.新设备替代老设备将会使产量大大增加。(2)The basic method for the improvement of soil is the application of organic fert
13、ilizer.改良土壤的基本方法是使用有机肥。第21页/共37页科技论文摘要的语言特征科技论文摘要的语言特征 长句(1)Based on analyzing the multiple UCAV mission assignment characteristics,an integer programming based mission assignment method for multiple cooperative UCAVs is proposed.在深入分析多UCAV任务分配问题的特点的基础上，提出求解多UCAV协同任务分配的整数规划方法。第22页/共37页科技论文摘要的语言特征科技论
14、文摘要的语言特征常用句型的汉英对照本文简单介绍了be simply introduced in the paper本文研究了 be investigated in the paper本文研究了 be considered本文研究了 have(has)been studied本文介绍了 This paper introduces本文提出了 be proposed in the paper本文对进行了评述be reviewed本文报道了的方法be developed本文报道了的方法A procedure is described本文报道了的方法The paper describes本文报道了的方法
15、be reported本文报道了的方法be described第23页/共37页示例示例1 1ROBUST,NEAR TIME-OPTIMAL CONTROL OF POWER SYSTEM OSCILLATIONS WITH FUZZY LOGIC This paper presents a fuzzy logic controller for series reactance switching to damp power system electromechanical oscillations.A set of control rules are constructed and an
16、inference is provided by fuzzy logic reasoning.The knowledge base for the controller is established from observation of the dynamic behavior of a simple power system and the general engineering knowledge about the system dynamics.The performance of the controller is shown to be robust and comparable
17、 to that of a minimum-time optimal controller.Keywords:Small disturbance stability,large disturbance stability,switched reactance,optimal control,rule based controller,fuzzy logic,robustness第24页/共37页示例示例2 2A model predictive control strategy for supply chain optimizationThis paper describes a model
18、predictive control strategy to find the optimal decision variables to maximize profit in supply chains with multiproduct,multiechelon distribution networks with multiproduct batch plants.The key features of this paper are:(1)a discrete time MILP dynamic model that considers the flow of material and
19、information within the system;(2)a general dynamic optimization framework that simultaneously considers all the elements of the supply chain and their interactions;and(3),a rolling horizon approach to update the decision variables whenever changes affecting the supply chain arise.The paper compares
20、the behavior of a supply chain under centralized and decentralized management approaches,and shows that the former yields better results,with profit increases of up to 15%as shown in an example problem.Keywords:Supply chain management;Scheduling;Dynamic scheduling;Optimal control;Decision support to
21、ols;Hybrid systems第25页/共37页课堂练习以英译中为主第26页/共37页 The brushes are so placed that when the sides of an armature turn(or coil)pass through the middle of the region between field poles,the current though it changes direction.This makes all the conductors under one pole carry current in one direction.第1段第2
22、7页/共37页第2段 Stator:This part of the machine does not move and normally is the outer frame of the machine.Rotor:This part of the machine is free to move and normally is the inner part of the machine.第28页/共37页Both stator and rotor are made of ferromagnetic materials.In most machines,slots are cut on th
23、e inner periphery of the stator and outer periphery of the rotor structure.Conductors are placed in these slots.The iron core is used to maximize the coupling between the coils(formed by conductors)placed on the stator and rotor,to increase the flux density in the machine and to decrease the size of
24、 machine.If the stator or rotor(or both)is subjected to a time-varying magnetic flux,the iron core is laminated to reduce eddy current losses.第3段第29页/共37页第4段 The conductors placed in the slots of the stator or rotor are interconnected to form windings.The winding in which voltage is induced is calle
25、d the armature winding.The winding through which a current is passed to produce the primary source of flux in the machine is called the field winding.Permanent magnets are used in some machines to provide the major source of flux in the machine.第30页/共37页第5段 The voltage induced in the terms of the ar
26、mature winding is alternating.A commutator-brush combination is used as a mechanical rectifier to make the armature terminal voltage unidirectional and also to make the m.m.f.wave due to the armature current fixed in space.The brushed are so placed that when the sides of an armature turn(or coil)pas
27、s through the middle of the region between field poles,the current though it changes direction.This makes all the conductors under one pole carry current in one direction.As a consequence,the m.m.f.due to the armature current is along the axis midway between the two adjacent poles,called the quadrat
28、ure axis.第31页/共37页第6段 The field circuit and the armature circuit can be interconnected in various ways to provide a wide variety of performance characteristics an outstanding advantage of DC machines.In addition,the field poles can be excited by two field windings,a shunt field winding and a series
29、field winding.The shunt winding has a large number of turns and takes only s small current(less than 5%of the rated armature current).This winding can be connected across the armature(i.e.,parallel with it),hence the name shunt winding.The series winding has fewer turns but carries a large current.I
30、t is connected in series with the armature,hence the name series winding.If both shunt and series winding are present,the series winding is wound on top of the shunt winding.第32页/共37页第7段 The varies connections of the field circuit and armature circuit are shown in Fig.2.In the separately excited dc
31、machine(Fig.2a),the field winding is excited from a separate source.In the self-excited dc machine,the field winding can be connected in three different ways.The field winding may be connected in series with the armature(Fig.2b),resulting in a series dc machine;it may be connected across the armatur
32、e(i.e.,in shunt),resulting in a shunt machine(Fig.2c);or both shunt and series windings may be used(Fig.2d),resulting in a compound machine.第33页/共37页作业为本文写一篇100150单词的英文摘要，并选关键词。Translate the following into Chinese.1.Most types of electrical motors can be made to rotate in either direction by some si
33、mple modifications of their winding connections.2.The diagram is modified by replacing the shunt field coils with the run windings and the armature with the start windings.3.A control circuit for three-phase induction-motor reversing is shown in Figure 1.第34页/共37页作业（续）Translate the following into Ch
34、inese.4.Since only measurable parameters can be dealt with,the processing of the electrical signals is composed solely of arithmetical or logical operation.5.The Application of CAN Bus in the Fuel Cell Car Drive System.6.An adaptive Current Controller for Permanent Magnet Synchronous Motor Drivers B
35、ased on DSP Technology.第35页/共37页作业（续）Translate the following into English.1.小一些的绕组称为串联绕组，因为它与公共绕组串联联接。2.采用能耗制动可以克服电机的惯性，使电机快速停下来。3.利用发电机可将机械能转化为电能。4.本文简单介绍了基于神经网络(neural network)预测控制(predictive control)的基本原理。并且根据神经网络所采用网络模型的不同对预测模型进行了分类以及按照求解最优控制作用方式的不同介绍了几种常用的优化算法。5.本文研究了无UVW位置信号检测的永磁同步电机控制方法。电极启动过程分析表明，转子的初始位置确定是问题的关键。本文提出了两种不同负载类型传动系统的电机转子初始位置确定方法，并在一类实际系统中得到实现。结果表明本方法是可行的。第36页/共37页感谢您的观看！第37页/共37页