船岸一体化系统中岸电无缝接入与功率优化方法
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摘要
针对船舶岸电一体化系统岸电接入时,船岸两侧电力系统的差异以及船舶负荷无缝切换的需求,提出了基于并网过程多时段划分的船舶岸电并网功率波动平抑策略,对合闸前、合闸时、合闸后、柴油发电机退出运行时间段分别提出针对性的控制策略,并结合综合能量管理系统(IEMS)的协同管理条件抑制在并网及负荷转供过程中出现的功率波动值,保护船岸两侧配、用电设备。仿真结果表明,所提策略能够实现岸船两侧电力系统的跟踪控制,并在保证负荷不间断供电的前提下完成变频电源分时段控制模式之间的平滑切换,达到了并网功率波动平抑的目的。
Aiming at the difference between electric power system of shore and ship sides and the demand of seamless switching of ship load in the process of shore electricity accessing in the ship-shore integrated system,a suppression strategy of grid-connected power fluctuation in shore-to-ship power system is proposed based on the multi-period division of the grid-connected process. The target control strategies are respectively proposed for the period before closing,the moment of closing,the period after closing and the moment that diesel generators quit operation. Combining with the cooperative management conditions of IEMS(Integrated Energy Management System),the power fluctuation in the process of grid connection and load transfer is suppressed,and the distribution and electrical equipment on shore and ship sides are protected. The simulative results show that the proposed strategy can realize the tracking control of the electric power system on shore and ship sides and the smooth switching between multi-period control modes of the variable frequency power supply under the premise of ensuring uninterrupted power supply,and achieve the goal of smoothing the grid-connected power fluctuation.
Aiming at the difference between electric power system of shore and ship sides and the demand of seamless switching of ship load in the process of shore electricity accessing in the ship-shore integrated system,a suppression strategy of grid-connected power fluctuation in shore-to-ship power system is proposed based on the multi-period division of the grid-connected process. The target control strategies are respectively proposed for the period before closing,the moment of closing,the period after closing and the moment that diesel generators quit operation. Combining with the cooperative management conditions of IEMS(Integrated Energy Management System),the power fluctuation in the process of grid connection and load transfer is suppressed,and the distribution and electrical equipment on shore and ship sides are protected. The simulative results show that the proposed strategy can realize the tracking control of the electric power system on shore and ship sides and the smooth switching between multi-period control modes of the variable frequency power supply under the premise of ensuring uninterrupted power supply,and achieve the goal of smoothing the grid-connected power fluctuation.
引文
[1] PAUL D,PETERSON,K,CHAVDARIAN P.Designing cold ironing power systems:electrical safety during ship berthing[J].IEEE Industry Applications Magazine,2014(20):24-32.
[2] 吴振飞,叶小松,邢鸣.浅谈船舶岸电关键技术[J].电气应用,2013,32(6):22-26.WU Zhenfei,YE Xiaosong,XING Ming.Discussion on the key technology of ship shore power[J].Electrotechnical Application,2013,32(6):22-26.
[3] 钟诚,魏来,严干贵,等.考虑非计划孤岛的分布式电源无缝切换控制策略[J].电工技术学报,2017,32(9):129-138.ZHONG Cheng,WEI Lai,YAN Gangui,et al.A seamless transfer control strategy of distributed generation with considering unintentional islands[J].Transactions of China Electrotechnical Society,2017,32(9):129-138.
[4] 侯珏.船舶与岸电并网控制策略研究[J].船舶工程,2017,39(1):86-90.HOU Jue.Research on grid connected control strategy of ship and shore power[J].Ship Engineering,2017,39(1):86-90.
[5] LOPES J A P,MOREIRA C L,MADUREIRA A G.Defining control strategies for microgrids islanded operation[J].IEEE Transactions on Power Systems,2006,21(2):916-924.
[6] 陈杰,陈新,冯志阳,等.微网系统并网/孤岛运行模式无缝切换控制策略[J].中国电机工程学报,2014,34(19):3089-3097.CHEN Jie,CHEN Xin,FENG Zhiyang,et al.A control strategy of seamless transfer between grid-connected and islanding operation for microgrid[J].Proceedings of the CSEE,2014,34(19):3089-3097.
[7] 石荣亮,张兴,徐海珍,等.基于虚拟同步发电机的微网运行模式无缝切换控制策略[J].电力系统自动化,2016,40(10):16-22.SHI Rongliang,ZHANG Xing,XU Haizhen,et al.Seamless switching control strategy for microgrid operation modes based on virtual synchronous generator[J].Automation of Electric Power Systems,2016,40(10):16-22.
[8] 施永,赖纪东,苏建徽,等.微网系统运行模式平滑切换控制策略[J].电力系统自动化,2016,40(8):85-91.SHI Yong,LAI Jidong,SU Jianhui,et al.Control strategy of seamless transfer for microgrid operation mode[J].Automation of Electric Power Systems,2016,40(8):85-91.
[9] 张中锋.微网逆变器的下垂控制策略研究[D].南京:南京航空航天大学,2013.ZHANG Zhongfeng.Research on droop control strategy for microgrid inverter[J].Nanjing:Nanjing University of Aeronautics and Astronautics,2013.
[10] YANG M J,ZHUO F,WANG X W.Research of seamless transfer control strategy of microgrid system[C]//8th International Confe-rence on Power Electronics-ECCE Asia.Jeju,South Korea:IEEE,2011:2059-2066.
[11] BORUP U,BLAABJERG F,ENJETI P N.Sharing of nonlinear load in parallel-connected three-phase converters[J].IEEE Transactions on Industry Applications,2001,37(6):1817-1823.
[12] POGAKU N,PRODANOVIC’M,GREEN T C.Modeling,analysis and testing of autonomous operation of an inverter-based microgrid[J].IEEE Transactions on Power Electronics,2007,22(2):613-625.
[2] 吴振飞,叶小松,邢鸣.浅谈船舶岸电关键技术[J].电气应用,2013,32(6):22-26.WU Zhenfei,YE Xiaosong,XING Ming.Discussion on the key technology of ship shore power[J].Electrotechnical Application,2013,32(6):22-26.
[3] 钟诚,魏来,严干贵,等.考虑非计划孤岛的分布式电源无缝切换控制策略[J].电工技术学报,2017,32(9):129-138.ZHONG Cheng,WEI Lai,YAN Gangui,et al.A seamless transfer control strategy of distributed generation with considering unintentional islands[J].Transactions of China Electrotechnical Society,2017,32(9):129-138.
[4] 侯珏.船舶与岸电并网控制策略研究[J].船舶工程,2017,39(1):86-90.HOU Jue.Research on grid connected control strategy of ship and shore power[J].Ship Engineering,2017,39(1):86-90.
[5] LOPES J A P,MOREIRA C L,MADUREIRA A G.Defining control strategies for microgrids islanded operation[J].IEEE Transactions on Power Systems,2006,21(2):916-924.
[6] 陈杰,陈新,冯志阳,等.微网系统并网/孤岛运行模式无缝切换控制策略[J].中国电机工程学报,2014,34(19):3089-3097.CHEN Jie,CHEN Xin,FENG Zhiyang,et al.A control strategy of seamless transfer between grid-connected and islanding operation for microgrid[J].Proceedings of the CSEE,2014,34(19):3089-3097.
[7] 石荣亮,张兴,徐海珍,等.基于虚拟同步发电机的微网运行模式无缝切换控制策略[J].电力系统自动化,2016,40(10):16-22.SHI Rongliang,ZHANG Xing,XU Haizhen,et al.Seamless switching control strategy for microgrid operation modes based on virtual synchronous generator[J].Automation of Electric Power Systems,2016,40(10):16-22.
[8] 施永,赖纪东,苏建徽,等.微网系统运行模式平滑切换控制策略[J].电力系统自动化,2016,40(8):85-91.SHI Yong,LAI Jidong,SU Jianhui,et al.Control strategy of seamless transfer for microgrid operation mode[J].Automation of Electric Power Systems,2016,40(8):85-91.
[9] 张中锋.微网逆变器的下垂控制策略研究[D].南京:南京航空航天大学,2013.ZHANG Zhongfeng.Research on droop control strategy for microgrid inverter[J].Nanjing:Nanjing University of Aeronautics and Astronautics,2013.
[10] YANG M J,ZHUO F,WANG X W.Research of seamless transfer control strategy of microgrid system[C]//8th International Confe-rence on Power Electronics-ECCE Asia.Jeju,South Korea:IEEE,2011:2059-2066.
[11] BORUP U,BLAABJERG F,ENJETI P N.Sharing of nonlinear load in parallel-connected three-phase converters[J].IEEE Transactions on Industry Applications,2001,37(6):1817-1823.
[12] POGAKU N,PRODANOVIC’M,GREEN T C.Modeling,analysis and testing of autonomous operation of an inverter-based microgrid[J].IEEE Transactions on Power Electronics,2007,22(2):613-625.