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Variable-frequency control propulsion system has impact on the current harmonics of ship grid.The output power and output frequency of converter are changed to observe the current harmonics variation on AC grid side of converter.In addition,this paper analyzes the inter-harmonics produced on AC side of grid.The results show that the distortion ratio of current harmonic on AC grid side will increase when the converter decreases output power and output frequency;the inter-harmonics are mainly distributed among the low frequencies;with the lower of inter-harmonic frequency,its amplitude is larger.On this basis,we put forward a filtering scheme coupled with passive power filter,DC capacitor and high pass filter.Simulation model with Matlab software verifies the feasibility of the proposed scheme.
[1]林海雪.公用电网间谐波国家标准介绍[J].供用电,2010,27(6):8-11,33.
[2]吴世君,吴宗利.等效模型仿真技术在船舶电网仿真中的应用[J].船电技术,2007,27(3):154-157.
[3]王兆安,黄俊.电力电子技术(第四版)[M].北京:机械工业出版社,2000.
[4]吴文宣,吴丹岳,林焱,等.电流型变频器的间谐波分析及应用模型构建[J].电工技术学报,2010,25(2):163-169,176.
[5]海军规范所,船总701所,船总719所,等.舰船通用规范3组电力系统(GJB4000-2000)[S].北京:中国标准出版社,2000.
[6]王兆安,杨君,刘进军.谐波抑制和无功功率补偿[M].北京:机械工业出版社,1998.
[7]程浩忠.电力系统谐波技术[M].上海:上海交通大学出版社,1998.
[8]宋艳琼.电力推进船舶电网谐波抑制仿真研究[D].武汉:武汉理工大学,2007.
Basic Information:
China Classification Code:TM711;U665
Citation Information:
[1]WANG Wei1,TAI Nengling1,WANG Peng2,NI Mingjie2,WEI Wei2,FAN Xiaoping2 (1.Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China, 2.Marine Design & Research Institute of China,Shanghai 200011,China).Influence of Frequency Converter on Current Harmonics of Propulsion System and Its Control Planning[J].Water Resources and Power,2011,29(11):182-185+217.
Fund Information:
国家重大科技专项经费基金资助项目(2008ZX05027-003)
2011-11-25
2011-11-25