船舶岸电工作环境下高频变压器潜在问题分析张勇，孔德楷，王慧荣（青岛前湾集装箱码头有限责任公司，山东青岛266520）摘要：由于船舶用电通常使用的电压与工业用电电压不一致，码头上需要配置高压岸电电源变频系统，将10kV/50Hz工业电源转换成6kV/50Hz及6.6kV/60Hz船用电源用于集装箱船舶靠泊期间用电。然而，在高频条件下经过变频处理的电流变压的高尖峰值、波形畸变和激磁涌流等问题会造成大功率用电设备投入和切断时间的不确定性，合闸产生的冲击电压造成电压波动，这让港口方、船方均承担较大的安全责任风险，影响船舶岸电系统的使用和推广。针对该问题，本文首先提出针对高压岸电电源变频系统中变压器的改进模型，再建立高频下考虑寄生参数的高压岸电电源变频系统中变压器模型，分析高压条件下改进模型的增益、功率器件的电压/电流应力、变换器损耗和效率等方面是否符合使用要求。关键词：高压岸电电源变频系统；船舶岸电；改进优化；模态分析；工作特性分析中图分类号：TM46文献标识码：A文章编号：1004-9592（2023）04-0030-06DOI:10.16403/j.cnki.ggjs20230407AnalysisofPotentialProblemsofHigh-frequencyTransformersintheWorkingEnvironmentofShipShorePowerZhangYong,KongDekai,WangHuirong（QingdaoQianwanContainerTerminal,QingdaoShandong266520,China）Abstract:Asthevoltageusuallyusedforshipelectricityisinconsistentwiththeindustrialelectricityvoltage,theterminalneedstobeequippedwithahigh-voltageshorepowerfrequencyconversionsystemtoconvert10kV/50Hzindustrialpowerinto6kV/50Hzand6.6kV/60Hzmarinepowerforcontainerships.However,underhigh-frequencyconditions,thehighspikepeakofcurrenttransformer,waveformdistortionandexcitationinrushcurrentafterfrequencyconversiontreatmentwillcauseuncertaintyintheinputandcut-offtimeofhigh-powerelectricalequipment,andtheimpulsevoltagegeneratedbyclosingwillcausevoltagefluctuations.Theshipownerbearsagreaterriskofsafetyresponsibility,whichaffectstheuseandpromotionoftheship'sshorepowersystem.Inresponsetothisproblem,thispaperfirstproposesanimprovedmodelforthetransformerinhigh-voltageshorepowersupplyfrequencyconversionsystem,andthenestablishesahigh-voltageshorepowersupplyfrequencyconversionsystemmodelconsideringparasiticparame...
