.轮机英语（轮机长大管轮）Lesson 44 Electric Power System of Electric Propulsion Vessel.ppt

Lesson44ElectricPowerSystemofElectricPropulsionVesselNewWordsandExpressionsisolated[?a?s?le?t?d]adj.隔离的，孤独的，单独的，偏远的consumer[k?n?sju:m?(r)]n.消费者，顾客incontrastto与…对比integration[??nt??gre??n]n.集成、集合sub-system[s?bs?st?m]子系统coordination[k????:d??ne??n]n.协调，和谐microprocessor[?ma?kr???pr??ses?(r)]n.微处理器feasible[?fi:z?bl]adj.可行的，可用的，可实行的，可能的NewWordsandExpressionsredundant[r??d?nd?nt]adj.多余的，冗余的occasionally[??ke??n?li]adv.偶尔，偶然，有时候sophisticated[s??f?st?ke?t?d]adj.复杂的，精致的diagnostics[?da??gn?st?ks]n.诊断学optimum[??pt?m?m]adj.最适宜的；n.最佳效果，最适宜条件inefficient[??n??f??nt]adj.无效率的，无能的synchronous[?s??kr?n?s]adj.同时存在[发生]的，同步的magnetize[m?ɡn?ta?z??]vt.使有磁性，使磁化NewWordsandExpressionsrotor[?r??t?(r)]n.旋翼，轮子stator[ste?t?]n.定子sinusoidal[?s?n?s??dl]adj.正弦曲线，窦状小管，窦状隙induced[?ndju:st]adj.感应的proportional[pr??p?:??nl]adj.比例的，成比例的，相称的，均衡的brush[br??]n.刷子；v.刷parallel-connected并联连接regulation[?regju?le??n]n.adj.规则，管理；规定的NewWordsandExpressionstransient[?tr?nzi?nt]adj.n.短暂的，临时的；临时旅客，瞬变现象damper[?d?mp?(r)]n.adj.减震器；潮湿的thread[θred]n.vt.螺纹，线；穿成串periphery[p??r?f?ri]n.外围，边缘，圆周，边缘地带takein吸收Staticconverter静止变流器Themaindifferencebetweenthemarineandaland-basedelectricalpowersystemisthefactthatthemarinepowersystemisanisolatedsystemwithshortdistancesfromthegeneratedpowertotheconsumers,incontrasttowhatisnormalinland-basedsystemswheretherecanbehundredsofkilometersbetweenthepowergenerationandtheload,withlongtransmissionlinesandseveralvoltagetransformersbetweenthem.Theamountofinstalledpowerinvesselsmaybehighandthisgivesspecialchallengesfortheengineeringofsuchsystems.Highshortcircuitlevelsandforcesmustbedealtwithinasafemanner:Thecontrolsysteminaland-basedelectricalpowersystemisdividedinseveralseparatedsub-systems,whileinavessel.Therearepossibilitie