分频输电在海上风电并网应用中的前景和挑战
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摘要
通过比较3种风电并网方式,指出了分频输电系统(FFTS)在大规模海上风电并网中的应用前景。介绍了分频海上风电系统的结构和变频器的选择,对比表明了模块化多电平矩阵式换流器(M~3C)作为新一代变频器优良性能。分析了低频环境对分频海上风电系统中关键性设备的影响,进一步从设备角度表明分频海上风电系统的可行性和经济技术优势。最后指出分频海上风电系统中仍需解决的经济技术难题,为进一步研究指明了方向。
Through the comparison of three methods for the grid interconnection of offshore wind power, this paper pointed out the application prospects of fractional frequency transmission system(FFTS) in large-scale offshore wind power integration.Besides, this paper introduced the structure of fractional wind power system and the choice of inverter and showed the excellent performance of modular multilevel converter(M~3C) as a new generation inverter. Moreover, this paper analyzed the influence of low frequency on the critical machines used in fractional offshore wind power system, which furtherly shows the feasibility,economical advantages and technological advantages of the fractional offshore wind power system. Finally, some economical and technological problems remaining unsolved of the fractional offshore wind power system were pointed out, which indicated the direction for further study.
Through the comparison of three methods for the grid interconnection of offshore wind power, this paper pointed out the application prospects of fractional frequency transmission system(FFTS) in large-scale offshore wind power integration.Besides, this paper introduced the structure of fractional wind power system and the choice of inverter and showed the excellent performance of modular multilevel converter(M~3C) as a new generation inverter. Moreover, this paper analyzed the influence of low frequency on the critical machines used in fractional offshore wind power system, which furtherly shows the feasibility,economical advantages and technological advantages of the fractional offshore wind power system. Finally, some economical and technological problems remaining unsolved of the fractional offshore wind power system were pointed out, which indicated the direction for further study.
引文
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[15]YUSHI M,TOMOYA M,MICHITAKA I,et al.Modular Multilevel Matrix Converter for Low Frequency AC Transmission[C]∥IEEE 10th International Conference on Power Electronics and Drive Systems(PEDS),Kitakyushu,2013:1079-1084.
[16]迟方德,王锡凡,王秀丽.风电经分频输电装置接入系统研究[J].电力系统自动化,2008,32(4):59-63.
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[18]TAKEDA T,HOZUMI N,SUZUJH H,et al.Space Charge Behavior in Full-size 250 k V DC XLPE Cables[J].IEEE Transactions on Power Delivery,1998,13:28-39.
[19]WANG X,TU D,TANAKA Y,et al.Space Charge in XLPE Power Cable Under Dcelectrical Stress and Heat Treatment[J].IEEE Transactions on Dielectrics and Electrical Insulation,1995,2(3):467-474.
[20]王锡凡,刘沈全,宋卓彦,等.分频海上风电系统的技术经济分析[J].电力系统自动化,2015,39(3):43-50.
[2]王锡凡,卫晓辉,宁联辉,等.海上风电并网与输送方案比较[J].中国电机工程学报,2014,34(31):5459-5466.
[3]王志新.海上风力发电技术[M].北京机械工业出版社,2013.
[4]陈锋,刘连勇,董余凡.大规模海上风电场并网接入方式[J].江苏电机工程,2014,33(3):81-84.
[5]MARQUARD R,LWSNICAR A.A New Modular Voltage Source Inverter Topology[C]∥European Conference on Power Electronics and Applications.Toulouse,France:EPE,2003:17-32.
[6]ERLICH I,SHEWAREGA F,WREDE H,et al.Low Frequency AC for Offshore Wind Power Transmission-Prospects and Challenges[C]∥AC and DC Power Transmission,11th IET International Conference,Birmingham,2015:1-7.
[7]WANG XIFAN.The Fractional Frequency Transmission System[C]∥IEE Japan Power&Energy.Tokyo,Japan IEE,1994:53-58.
[8]WANG XIFAN,WANG XIULI.Feasibility Study of Fractional Frequency Transmission System[J].IEEE Transactions on Power Systems,1996,11(2):962-967.
[9]王锡凡.分频输电及其在风电等再生能源接入系统中的应用[J].动力与电气工程师,2008,2(1):12-14.
[10]宋卓彦,王锡凡,滕予非,等.变速恒频风力发电机组控制技术综述[J].电力系统自动化,2010,34(10):8-17.
[11]宁联辉,王锡凡,滕予非,等.风力发电经分频输电接入系统的实验[J].中国电机工程学报,2011,31(21):9-16.
[12]王锡凡,王秀丽,滕予非,等.分频输电系统及其应用[J].中国电机工程学报,2012,32(13):1-6.
[13]CHO Y,COKKINIDES G,MELIOPOULOS A.LFAC-Transmission Systems for Remote Wind Farms Using a Three-phase,Six-pulse Cycloconverter[C]∥Power Electronics and Machines in Wind Applications(PEMWA),Denver:IEEE,2012:1-7.
[14]TANG Y,WYLLIE P B,YU J,et al.Offshore Low Frequency AC Transmission with Back-to-back Modular Multilevel Converter(MMC)[C]∥AC and DC Power Transmission,11th IET International Conference,Birmingham:2015:1-8.
[15]YUSHI M,TOMOYA M,MICHITAKA I,et al.Modular Multilevel Matrix Converter for Low Frequency AC Transmission[C]∥IEEE 10th International Conference on Power Electronics and Drive Systems(PEDS),Kitakyushu,2013:1079-1084.
[16]迟方德,王锡凡,王秀丽.风电经分频输电装置接入系统研究[J].电力系统自动化,2008,32(4):59-63.
[17]滕予非.分频风电系统特性分析[D].西安:西安交通大学,2012.
[18]TAKEDA T,HOZUMI N,SUZUJH H,et al.Space Charge Behavior in Full-size 250 k V DC XLPE Cables[J].IEEE Transactions on Power Delivery,1998,13:28-39.
[19]WANG X,TU D,TANAKA Y,et al.Space Charge in XLPE Power Cable Under Dcelectrical Stress and Heat Treatment[J].IEEE Transactions on Dielectrics and Electrical Insulation,1995,2(3):467-474.
[20]王锡凡,刘沈全,宋卓彦,等.分频海上风电系统的技术经济分析[J].电力系统自动化,2015,39(3):43-50.