一种基于级联Buck-Boost变换器的多储能并联系统及其控制策略设计
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TM46

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云南电网有限责任公司电力科学研究院科技项目(0562002018030304ZN00004);国家自然科学基金(51977067)


A multi-storage parallel system based on cascaded Buck-Boost converter and its control strategy design
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    摘要:

    储能单元是直流微电网可靠运行需要解决的关键环节,传统的双向Buck-Boost变换器在电压增益及成本等方面不具有优势,因此需要新的设计方案。首先,以基于级联型Buck-Boost变换器的储能系统为研究对象,提出级联Buck-Boost变换器作为子模块的系统设计方案;然后,通过对级联Buck-Boost变换器的工作模态分析,确定其在Buck和Boost模式下的电压增益,并给出调制策略,同时结合直流微网运行模式,进一步提出储能系统的整体运行方案,在不同的工况下采用合适的控制策略来维持微网的可靠运行;最后,搭建相关仿真验证了所设计的储能系统和控制方案的有效性。

    Abstract:

    Energy storage unit is one of the key factorswhichcan ensure the reliable operation of DC microgrids. Traditional bi-directional Buck-Boost convertershave no advantages in voltage gain regulation and the correspondingcost, so a new design scheme is required to make a trade-off between the regulation capability and cost. First, for the energy storage system based on cascaded Buck-Boostconverter, this paper proposesa system-level design scheme whichusing cascaded Buck-Boostconverter as the sub module. Then, the voltage gain regulation of the cascaded Buck-Boostconverter in Buck and Boost mode is investigated by analyzing the working mode, and the modulation strategy is proposedfor the cascaded Buck-Boostconverter. At the same time, with the consideration of the operation mode of DC microgrid, the overall operation strategiesof energy storage system arefurther proposed to enable the storage to adoptthe appropriate control strategy to securethe reliable operation of microgrid under different working conditions. Finally, the effectiveness of the designed energy storage system and the control strategy areverified by several simulations.

    参考文献
    [1] 李波,田纯,倪广魁,等.基于JADE平台的智能配电网自愈系统设计[J].智慧电力,2020,48(2):9-16.LI Bo,TIAN Chun,NI Guangkui,et al.Design of self-healing system in smart distribution network based on JADE platform[J].Smart Power,2020,48(2):9-16.
    [2] 王源,南海鹏,关欣.风水储微电网优化调度策略研究[J].高压电器,2020,56(05):216-222.WANG Yuan,NAN Haipeng,GUAN Xin.Optimal scheduling Strategy of wind-hydro-storage micro-grid[J].High Voltage Apparatus,2020,56(05):216-222.
    [3] 丁雨,于艾清,高纯.基于改进一致性算法的独立光储直流微电网电压稳定能量协调策略[J].中国电力,2022,55(3):74-79.DING Yu,YU Aiqing,GAO Chun.An energy coordination strategy for island DC microgrid with photovoltaic and storage system based on improved consensus algorithm[J].Electric Power,2022,55(3):74-79.
    [4] 陆维,赵兴勇,赵钰彬,等.孤网模式下交直流混合微电网互联变换器综合下垂控制[J].电测与仪表,2020,57(2):101-108.LU Wei,ZHAO Xingyong,ZHAO Yubin,et al.Integrated droop control of AC/DC hybrid microgrid interlinking converter in isolated network mode[J].Electrical Measurement & Instrumentation,2020,57(2):101-108.
    [5] 张林,郭辉,姚李孝,基于改进蝙蝠算法的微电网优化研究[J].电网与清洁能源,2021,37(4):122-126.ZHANG Lin,GUO Hui,YAO Lixiao.Research on microgrid optimization based on improved bat algorithm[J].Power System and Clean Energy,2021,37(4):122-126.
    [6] 张宇涵,杜贵平,雷雁雄,等.直流微网混合储能系统控制策略现状及展望[J].电力系统保护与控制,2021,49(3):177-188.ZHANG Yuhan,DU Guiping,LEI Yanxiong,et al.Current status and prospects of control strategy for a DC micro grid hybrid energy storage system[J].Power System Protection and Control,2021,49(3):177-188.
    [7] BRYAN J,DUKE R,ROUND S.Decentralized generator scheduling in a nanogrid using DC bus signaling[C]//Power Engineering Society General Meeting,Denver,USA:IEEE,2004:977-982.
    [8] 米阳,纪宏澎,何星瑭,等.多储能独立直流微电网自适应分级协调控制[J].中国电机工程学报,2018,38(7):1980-1989.MI Yang,JI Hongpeng,HE Xingtang,et al.Adaptive hierarchical coordinated control of multi-energy storage in isolated DC microgrid[J].Proceedings of the CSEE,2018,38(7):1980-1989.
    [9] ZHAO B,YU Q G,SUN W X.Extended-phase-shift control of isolated bidirectional DC-DC converter for power distribution in microgrid[J].IEEE Transactions on Power Electronics,2012,27(11):4667-4680.
    [10] FAN H F,LI H.High-frequency transformer isolated bidirectional DC-DC converter modules with high efficiency over wide load range for 20 kV·A solid-state transformer[J].IEEE Transactions on Power Electronics,2011,26(12):3599-3608.
    [11] 秦文萍,柳雪松,韩肖清,等.直流微电网储能系统自动充放电改进控制策略[J].电网技术,2014,38(7):1827-1834.QIN Wenping,LIU Xuesong,HAN Xiaoqing,et al.An improved control strategy of automatic charging/discharging of energy storage system in DC microgrid[J].Power System Technology,2014,38(7):1827-1834.
    [12] HYEON-SEOK L,JAE-JUNG Y.High-efficiency bidirectional Buck-Boost converter for photovoltaic and energy storage system in smart grid[J].IEEE Transactions on Power Electronics,2019:34(5):4316-4328.
    [13] 任小永,唐钊,阮新波,等.一种新颖的四开关Buck-Boost变换器[J].中国电机工程学报,2008,28(21):15-19.REN Xiaoyong,TANG Zhao,RUAN Xinbo,et al.A novel fourswitch Buck-Boost converter[J].Proceedings of the CSEE,2008,28(21):15-19.
    [14] 吴雨,潘文霞,冯蒙霜,等.基于混合储能的微电网功率控制策略[J].电力系统及其自动化学报,2013,25(2):109-114+158.WU Yu,PAN Wenxia,FENG Mengshuang,et al.Power control strategy for microgrid based on hybrid energy storage system[J].Journal of Power System and Automation,2013,25(2):109-114+158.
    [15] XU L,CHEN D.Control and operation of a DC microgrid with variable generation and energy storage[J].IEEE Transactions on Power Delivery,2011,26(4):2513-2522.
    [16] WAFFLER S,KOLAR J W.A novel low-loss modulation strategy for high-power bidirectional buck+boost converters[J].IEEE Transactions on Power Electronics,2009,24(6):1589-1599.
    [17] AHARON I,KUPERMAN A,SHMILOVITZ D.Analysis of dual-carrier modulator for bidirectional noninverting Buck-Boost converter[J].IEEE Transactions on Power Electronics,2015,30(2):840-848.
    [18] ANUN M,ORDONEZ M,ZURBRIGGEN I G,et al.Circular switching surface technique:high-performance constant power load stabilization for electric vehicle systems[J].IEEE Transactions on Power Electronics,2015,30(8):4560-4572.
    [19] 欧阳丽,周丽红,何海斌.无需互联通信的直流微电网实时功率协调控制策略[J].电网技术,2015,39(12):3449-3456.OUYANG Li,ZHOU Lihong,HE Haibin.Real-time power coordinated control strategy for DC microgrid without communication[J].Power System Technology,2015,39(12):3449-3456.
    [20] 肖安南,张蔚翔,张超,等.含光伏发电与储能的配电网基于源—网—荷互动模式下电压安全最优控制策略[J].电力科学与技术学报,2020,35(2):120-127.XIAO Annan,ZHANG Weixiang,ZHANG Chao,et al.Voltage security optimal control strategy of distribution network with PVs and ESs under"Source-Grid-Load"interaction[J].Journal of Electric Power Science and Technology,2020,35(2):120-127.
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苏适,栾思平,罗恩博,等.一种基于级联Buck-Boost变换器的多储能并联系统及其控制策略设计[J].电力科学与技术学报,2022,37(3):70-76.
SU Shi, LUAN Siping, LUO Enbo, et al. A multi-storage parallel system based on cascaded Buck-Boost converter and its control strategy design[J]. Journal of Electric Power Science and Technology,2022,37(3):70-76.

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  • 在线发布日期: 2022-07-24
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