船舶电网的无功补偿研究【毕业论文】

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1、本科毕业论文（20届）船舶电网的无功补偿研究摘要：III无功补偿在船舶电网安全运行的过程中具有重要作用，通过对船舶电网进行无功补偿，能够使整个船舶电力系统效率极大的提高，同时也能降低损耗，改善船舶电压质量，使得船舶电网安全的运行。根据无功功率产生的原因，本文通过类比陆地电力系统无功补偿的方法提出了船舶电网无功功率补偿的措施。船舶电力系统无功补偿的方式主要有集中补偿、分散补偿、个别补偿，经常使用的无功补偿设备有电容器、同步调相机、静止型动态无功补偿装置(SVC)。目前船舶电网无功补偿也存在谐波问题、无功功率倒送问题。这些问题会造成

2、船舶电网电器元件的损坏，增加线路和变压器等设备的损耗，给船舶电网安全运行带来隐患。减少谐波的措施主要有装设谐波补偿装置，同时对电力电子装置本身进行改造。通过静态无功补偿装置可降低无功倒送，在日常电网运行时，工作人员也应加强对电器设备的监测和维护，让船舶电力系统安全正确运行。关键词：无功补偿；功率因数；船舶电网；谐波Abstract：Reactivepowerhaveanimportantroleintheprocessofthemarineelectricpowersystem’ssafecirculate.Byusingrea

3、ctivepowerinmarineelectricpowersystemcangreatlyimprovethewholeelectricpowersystemefficiencyandalsoreducethewasteandimprovethemarinevoltagequantity,whichwillensurethesafecirculateofthemarineelectricpowersystem.Accordingtothetheoryofreactivepower’scomeintobeing,thisart

4、iclethroughanalogywithlandelectricpowersystemreactivepowermethod,putforwardthemeasureofmarineelectricpowersystemreactivepower.Themethodsofreactivepowercompensationaboutthemarineelectricpowersystemhadconcentratedcompensatory、dispersioncompensatoryandindividualcompensa

5、tory.Theequipmentofreactivepowercompensationfrequentlyusedshuntcapacitor、synchronouscompensatorandstaticvarcompensator.Currentlyreactivepowercompensationofmarineelectricpowersystemexcitedharmonicexistence,reactivepowerdeliverstheproblem,voltageregulatingmodeofreactiv

6、epowercompensationproblems.Theseproblemswillcausedamagetothemarineelectricpowersystemelectricalcomponents,increaselinesandtransformer,andotherequipmentloss,tomarineelectricpowersystemsecuritybringshiddentrouble.Themethodsoftoreduceharmonichadinstalledharmoniccompensa

7、tiondevice,andimprovedthequalityofelectrondevice.Throughusedreactivepowersteadycompensationequipmentscancutdownreactivepowerreturn.whenthepowersystemwasrunning,creditsshouldstrengthenedelectricaldevicemonitoringandmaintenance,toletshipelectricalpowersystemrunningrigh

8、tyandsafety.Keywords：reactivepower;powerfactor;marineelectricpowersystem;harmonicIII目　录摘要II0引言11船舶电力系统无功补偿的概述21.1船舶电力系统的组成21.2功率因数的