胡卫丰;侍红兵;李官军;袁伯军;刘钊;陆一言;

• 1:国网江苏省电力有限公司
• 2:中国电力科学研究院有限公司
• 3:江苏省配电网智能技术与装备协同创新中心
• 4:南京理工大学自动化学院

摘要(Abstract)：

提出了一种基于初始工作点选取的级联多电平混合储能系统功率分配控制方法。级联多电平储能系统中部分储能电池/BMS(battery management system)出现故障时,可以通过切除故障储能电池从而形成基于电池和电容的级联多电平混合储能系统。级联多电平混合储能系统控制的关键在于不同链节单元之间的功率分配。通过初始工作点选取的方法可以实现链节单元间无功的分配,从而提高系统的可靠性和冗余性;同时通过矢量分析的方法推导了级联多电平混合储能系统稳定工作范围以及初始工作点的选取范围。最后通过仿真和实验验证了所提控制方法的有效性和可行性。

关键词(KeyWords)： 级联多电平;混合储能;初始工作点;功率分配;矢量分析

Abstract:

Keywords:

基金项目(Foundation): 国网江苏省电力公司科技项目(提升电网稳定水平的大容量中压直挂式储能系统关键技术研发);; 江苏省配电网智能技术与装备协同创新中心开放基金项目(XTCX201901)~~

作者(Author): 胡卫丰;侍红兵;李官军;袁伯军;刘钊;陆一言;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.1173

参考文献(References)：

• [1]李相俊，王上行，惠东．电池储能系统运行控制与应用方法综述及展望[J]．电网技术，2017,41(10):3315-3325.Li Xiangjun,Wang Shangxing,Hui Dong.Summary and prospect of operation control and application method for battery energy storage systems[J].Power System Technology,2017,41(10):3315-3325(in Chinese).
• [2]张明霞，闫涛，来小康，等．电网新功能形态下储能技术的发展愿景和技术路径[J]．电网技术，2018,42(5):1370-1377.Zhang Mingxia,Yan Tao,Lai Xiaokang,et a1.Technology vision and route of energy storage under new power grid function configuration[J].Power System Technology,2018,42(5):1370-1377(in Chinese).
• [3]王承民，孙伟卿，衣涛，等．智能电网中储能技术应用规划及其效益评估方法综述[J]．中国电机工程学报，2013,33(7):33-41.Wang Chengmin,Sun Weiqing,Yi Tao,et a1.Review on energy storage application planning and benefit evaluation methods in smart grid[J].Proceedings of the CSEE,2013,33(7):33-41(in Chinese).
• [4]李建林，马会萌，袁晓冬，等．规模化分布式储能的关键应用技术研究综述[J]．电网技术，2017,41(10):3365-3375.Li Jianlin,Ma Huimeng,Yuan Xiaodong,et a1.Overview on key applied technologies of large-scale distributed energy storage[J].Power System Technology,2017,41(10):3365-3375(in Chinese).
• [5] Ling Z B,Cao Y,Ma Q D,et al.Design of 2 MW/10 kV cascaded power conversion system[C]//40th Annual Conference of the IEEE Industrial Electronics Society.Dallas,TX,USA:IEEE,2014:4250-4255.
• [6] Kawakami N,Ota S,Kon H,et al.Development of a 500 kW modular multilevel cascade converter for battery energy storage systems[J].IEEE Transactions on Industry Applications,2014,50(6):3902-3910.
• [7] Maharjan L,Yamagishi T,Akagi H,et al.Fault-tolerant operation of a battery-energy-storage system based on a multilevel cascade pwm converter with star configuration[J].IEEE Transactions on Power Electronics,2010,25(9):2386-2396.
• [8] Koyama Y,Nakazawa Y,Mochikawa H,et al.A transformerless6.6-kV STATCOM based on a hybrid cascade multilevel converter using SiC devices[J].IEEE Transactions on Power Electronics,2018,33(9):7411-7423.
• [9] Zha X M,Yang Z Z,Gong J W,et al.Asymmetrical carrier phase-shifted pulse-width modulation for partly regenerative converter[J].IET Power Electronics,2017,10(4):442-450.
• [10] Ye M Y,Kang L X,Xiao Y H,et al.Modified hybrid modulation strategy with power balance control for H-bridge hybrid cascaded seven-level inverter[J]. IET Power Electronics, 2018, 11(6):1046-1054.
• [11] Vazquez S,Leon J I,Franquelo L G,et al.DC-voltage-ratio control strategy for multilevel cascaded converters fed with a single DC source[J].IEEE Transactions on Industrial Electronics,2009,56(7):2513-2521.
• [12] Sepahvand H,Liao J S,Ferdowsi M,et al.Capacitor voltage regulation in single-DC-source cascaded H-bridge multilevel converters using phase-shift modulation[J].IEEE Transactions on Industrial Electronics,2013,60(9):3619-3626.
• [13] Zha X M,Wang P,Liu F,et al.Segmented power distribution control system based on hybrid cascaded multilevel converter with parts of energy storage[J].IET Power Electronics,2017,10(15):2076-2084.
• [14] Liu L M,Li H,Hwang S H,et al.An energy-efficient motor drive with autonomous power regenerative control system based on cascaded multilevel inverters and segmented energy storage[J].IEEE Transactions on Industry Applications,2013,49(1):178-188.
• [15] Jiang W,Xue S,Zhang L Z,et al.Flexible power distribution control in an asymmetrical cascaded multilevel converter based hybrid energy storage system[J].IEEE Transactions on Industrial Electronics,2018,65(8):6150-6159.
• [16] Zhang Q H.Control of PV battery hybrid system using cascaded H bridge converter[C]//3rd International Future Energy Electronics Conference and ECCE Asia. Kaohsiung, Taiwan, China:3rd International Future Energy Electronics Conference and ECCE Asia,2017:2008-2012.
• [17] Liu L M,Li H,Xue Y S,et al.Decoupled active and reactive power control for large-scale grid-connected photovoltaic systems using cascaded modular multilevel converters[J].IEEE Transactions on Power Electronics,2015,30(1):176-187.
• [18] Shi Y J,Liu B Y,Shi Y J,et al.Individual phase current control based on optimal zero-sequence current separation for a star-connected cascaded STATCOM under unbalanced conditions[J]. IEEE Transactions on Power Electronics,2016,31(3):2099-2110.
• [19]刘钊，刘邦银，段善旭，等．系统电压不平衡下链式静止同步补偿器控制研究[J]．中国电机工程学报，2011,31(9):1-7.Liu Zhao,Liu Bangyin,Duan Shanxu,et a1.Research on cascade multilevel STATCOM under unbalanced system voltage[J].Proceedings of the CSEE,2011,31(9):1-7(in Chinese).
• [20] Maharjan L,Inoue S,Akagi H,et al.State-of-charge(SOC)-balancing control of a battery energy storage system based on a cascade PWM converter[J].IEEE Transactions on Power Electronics,2009,24(6):1628-1636.
• [21]刘钊，刘邦银，段善旭，等．链式静止同步补偿器的直流电容电压平衡控制[J]．中国电机工程学报，2009,29(30):7-12.Liu Zhao,Liu Bangyin,Duan Shanxu,et a1.DC capacitor voltage balancing control for cascade multilevel STATCOM[J].Proceedings of the CSEE,2009,29(30):7-12(in Chinese).
• [22] Liu Z,Liu B Y,Duan S X,et al.A novel DC capacitor voltage balance control method for cascade multilevel STATCOM[J]. IEEE Transactions on Power Electronics,2012,27(1):14-27.