电力专业英语阅读与翻译 课件 21-Flexible AC Transmission System、22-Power Quality and Its Improvement.pptx

电力专业英语(21)FlexibleACTransmissionSystem参考教材：朱永强.电力专业英语阅读与翻译.机械工业出版社，2024-06

FlexibleACTransmissionSystem1.Today’spowertransmissionanddistributionsystemsfaceincreasingdemandsformorepower,betterqualitywithhigherreliabilityandatlowercostaswellaslowenvironmentalimpact.尝试翻译1.Today’spowertransmissionanddistributionsystemsfaceincreasingdemandsformorepower,betterqualitywithhigherreliabilityandatlowercostaswellaslowenvironmentalimpact.翻译如今的输配电系统面临日益增长的需求，要求功率更大，因可靠性更高而质量更好，既要对环境影响小又要成本更低。

FlexibleACTransmissionSystem说明powertransmissionanddistributionsystems意思是“电力输送和分配系统”，按照我国电力行业的习惯说法可以简称为“输配电系统”。aswellas表示“在…的同时也…”。介词for带有多个并列的宾语，这些宾语都有各自的定语，这样的名词短语在翻译时可以处理为主谓结构，译文更容易符合中文习惯。

FlexibleACTransmissionSystem2.Thebranchcurrentiscontrolledbyphaseanglecontrolofthefiringpulsestothethyristors,thatis,thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandzeroat180degrees.尝试翻译2.Thebranchcurrentiscontrolledbyphaseanglecontrolofthefiringpulsestothethyristors,thatis,thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandzeroat180degrees.生词n.点火脉冲firingpulsen.半导体闸流管thyristor翻译通过对晶闸管点火脉冲的相角控制来控制支路电流，即，电抗器上的压降在点火角为90度时为全部系统电压，在180度时为零。

FlexibleACTransmissionSystem说明thatis表示“即，换句话说，就是说”。thatis后面的句子有词语省略，补全应为：…thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandiszeroat180degreesfiringangle.

朱永强zyq@ncepu.edu.cnFlexibleACTransmissionSystem3.Thecapacitorswitching(connecting)takesplaceatthatspecificinstantinacycleatwhichtheconditionsforminimumtransientsaresatisfied,thatis,whenthevoltageacrossthethyristorvalveiszeroorminimum.尝试翻译3.Thecapacitorswitching(connecting)takesplaceatthatspecificinstantinacycleatwhichtheconditionsforminimumtransientsaresatisfied,thatis,whenthevoltageacrossthethyristorv