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山东大学电气工程学院,山东省济南市 250061
Received:09 December 2021,
Revised:2022-04-04,
Published Online:06 June 2022,
Published:25 July 2022
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王建建,孙凯祺,李可军等.柔性互联配电网换流器控制模式平滑切换策略[J].电力系统自动化,2022,46(14):63-72.
WANG Jianjian,SUN Kaiqi,LI Kejun,et al.Smooth Switching Strategy of Control Mode for Converter in Flexible Interconnected Distribution Network[J].Automation of Electric Power Systems,2022,46(14):63-72.
王建建,孙凯祺,李可军等.柔性互联配电网换流器控制模式平滑切换策略[J].电力系统自动化,2022,46(14):63-72. DOI: 10.7500/AEPS20211209002.
WANG Jianjian,SUN Kaiqi,LI Kejun,et al.Smooth Switching Strategy of Control Mode for Converter in Flexible Interconnected Distribution Network[J].Automation of Electric Power Systems,2022,46(14):63-72. DOI: 10.7500/AEPS20211209002.
电流矢量控制与功率同步控制是广泛应用于柔性互联配电网中电压源换流器的2种控制模式。由于运行原理和运行特性不同,大多数传统换流器只配备一种控制模式,导致在交流电网强度变化时其运行灵活性受到限制,并在极端事故下可能带来严重问题。为扩大换流器在柔性互联配电网中的运行范围和增强其运行灵活性,首先对比了电流矢量控制和功率同步控制在不同交流电网强度下的稳定性,并分析了2种控制模式间切换的必要性。然后,考虑到事故下和事故恢复中交流电网强度变化的完整过程,提出了一种电流矢量控制与功率同步控制的平滑切换策略,并通过在功率同步环增加功率前馈环节,进一步削弱了系统强度变化造成的扰动。最后,以PSCAD/EMTDC中搭建的双端柔性互联系统为例,验证了所提策略的有效性。
Current vector control (CVC) and power synchronization control (PSC) are two widely adopted control modes for voltage source converters (VSCs) in the flexible interconnected distribution networks. Due to the different control principles and the operating characteristics
most conventional VSCs are only equipped with one type of control mode
which limits their operating flexibility when AC grid strength changes and may cause serious problems in extreme accidents. To enlarge the operating range and enhance the operating flexibility of the VSCs
the stability of the CVC and PSC under different AC grid strengths are firstly compared and the necessity of smooth switching of two control modes is analyzed. Then
a smooth switching strategy between CVC and PSC is proposed considering the complete process of AC grid strength changes in the accident and during accident recovery. By adding an active power feedforward function in the power synchronization loop
the disturbance caused by the change of grid strength is further weakened. Finally
based on a two-terminal flexible interconnection system built in PSCAD/EMTDC
the validity and correctness of the proposed strategy are verified.
马钊 , 周孝信 , 尚宇炜 , 等 . 未来配电系统形态及发展趋势 [J]. 中国电机工程学报 , 2015 , 35 ( 6 ): 1289 - 1298 .
MA Zhao , ZHOU Xiaoxin , SHANG Yuwei , et al . Form and development trend of future distribution system [J]. Proceedings of the CSEE , 2015 , 35 ( 6 ): 1289 - 1298 .
胡鹏飞 , 朱乃璇 , 江道灼 , 等 . 柔性互联智能配电网关键技术研究进展与展望 [J]. 电力系统自动化 , 2021 , 45 ( 8 ): 2 - 12 .
HU Pengfei , ZHU Naixuan , JIANG Daozhuo , et al . Research progress and prospects of key technologies of flexible interconnected smart distribution network [J]. Automation of Electric Power Systems , 2021 , 45 ( 8 ): 2 - 12 .
张勇军 , 刘子文 , 邓丰强 . 柔性互联配电网研究现状综述及其发展探索 [J]. 广东电力 , 2020 , 33 ( 12 ): 3 - 13 .
ZHANG Yongjun , LIU Ziwen , DENG Fengqiang . Review on research status and development of flexible interconnected distribution networks [J]. Guangdong Electric Power , 2020 , 33 ( 12 ): 3 - 13 .
朱艺锋 , 徐慧春 , 岳豪 , 等 . 含复系数滤波器锁相环的弱电网稳定性分析 [J]. 太阳能学报 , 2021 , 42 ( 10 ): 9 - 16 .
ZHU Yifeng , XU Huichun , YUE Hao , et al . Stability analysis of weak grid with complex coefficient filter phase-locked loop [J]. Acta Energiae Solaris Sinica , 2021 , 42 ( 10 ): 9 - 16 .
汤广福 , 罗湘 , 魏晓光 . 多端直流输电与直流电网技术 [J]. 中国电机工程学报 , 2013 , 33 ( 10 ): 8 - 17 .
TANG Guangfu , LUO Xiang , WEI Xiaoguang . Multi-terminal HVDC and DC-grid technology [J]. Proceedings of the CSEE , 2013 , 33 ( 10 ): 8 - 17 .
陈海荣 , 徐政 , 张静 . 一种基于电压源型多端直流输电的供电系统 [J]. 高电压技术 , 2006 , 32 ( 9 ): 1 - 5 .
CHEN Hairong , XU Zheng , ZHANG Jing . Supply system based on VSC-MTDC system [J]. High Voltage Engineering , 2006 , 32 ( 9 ): 1 - 5 .
KONISHI H , TAKAHASHI C , KISHIBE H , et al . A consideration of stable operating power limits in VSC-HVDC systems [C]// Seventh International Conference on AC-DC Power Transmission , November 28-30 , 2001 , London, UK : 102 - 106 .
HARNEFORS L , BONGIORNO M , LUNDBERG S . Input-admittance calculation and shaping for controlled voltage-source converters [J]. IEEE Transactions on Industrial Electronics , 2007 , 54 ( 6 ): 3323 - 3334 .
朱益良 , 蒲俊楷 , 葛兴来 , 等 . 弱电网下计及直流母线和镜像频率耦合扰动的三相LCL型并网逆变器序导纳建模及稳定性分析 [J]. 电力自动化设备 , 2020 , 40 ( 9 ): 190 - 203 .
ZHU Yiliang , PU Junkai , GE Xinglai , et al . Sequence admittance modeling and stability analysis for three-phase LCL-type grid-connected inverter with DC bus and MFC disturbance under weak grid [J]. Electric Power Automation Equipment , 2020 , 40 ( 9 ): 190 - 203 .
ZHOU J Z , DING H , FAN S T , et al . Impact of short circuit ratio and phase locked loop parameters on the small-signal behaviour of a VSC-HVDC converter [J]. IEEE Transactions on Power Delivery , 2014 , 29 ( 5 ): 2287 - 2296 .
高家元 , 涂春鸣 , 肖凡 , 等 . 弱电网下PLL结构引入的不对称正反馈环路对并网逆变器稳定性的影响分析 [J]. 中国电机工程学报 , 2022 , 42 ( 3 ): 1113 - 1125 .
GAO Jiayuan , TU Chunming , XIAO Fan , et al . Analysis of the influence of the asymmetric positive-feedback loop introduced by the PLL structure on the stability of grid-connected inverter in weak grids [J]. Proceedings of the CSEE , 2022 , 42 ( 3 ): 1113 - 1125 .
郑超航 , 李华 . 弱电网下电压源型变换器静态稳定性分析 [J]. 电力系统保护与控制 , 2021 , 49 ( 17 ): 38 - 47 .
ZHENG Chaohang , LI Hua . Static stability analysis of voltage source converters connected to a weak grid [J]. Power System Protection and Control , 2021 , 49 ( 17 ): 38 - 47 .
ZHANG L D , HARNEFORS L , NEE H P . Power-synchronization control of grid-connected voltage-source converters [J]. IEEE Transactions on Power Systems , 2010 , 25 ( 2 ): 809 - 820 .
GUAN M Y , PAN W L , ZHANG J , et al . Synchronous generator emulation control strategy for voltage source converter (VSC) stations [J]. IEEE Transactions on Power Systems , 2015 , 30 ( 6 ): 3093 - 3101 .
ZHANG L D , HARNEFORS L , NEE H P . Interconnection of two very weak AC systems by VSC-HVDC links using power-synchronization control [J]. IEEE Transactions on Power Systems , 2011 , 26 ( 1 ): 344 - 355 .
KHAZAEI J , MIAO Z X , PIYASINGHE L . Impedance-model-based MIMO analysis of power synchronization control [J]. Electric Power Systems Research , 2018 , 154 : 341 - 351 .
宋平岗 , 周鹏辉 , 肖丹 , 等 . MMC-RPC的功率同步平坦控制策略 [J]. 电力自动化设备 , 2019 , 39 ( 11 ): 145 - 151 .
SONG Pinggang , ZHOU Penghui , XIAO Dan , et al . Power synchronization flatness control strategy of MMC-RPC [J]. Electric Power Automation Equipment , 2019 , 39 ( 11 ): 145 - 151 .
陆韶琦 , 徐政 . 采用功率同步控制的MMC-HVDC功率极限分析 [J]. 中国电机工程学报 , 2016 , 36 ( 7 ): 1868 - 1876 .
LU Shaoqi , XU Zheng . Analysis of the maximum power flow in power synchronization control based MMC-HVDC [J]. Proceedings of the CSEE , 2016 , 36 ( 7 ): 1868 - 1876 .
徐政 . 柔性直流输电系统 [M]. 北京 : 机械工业出版社 , 2016 .
XU Zheng . Voltage source converter based high voltage direct current transmission system [M]. Beijing : China Machine Press , 2016 .
LI M , ZHANG X , YANG Y , et al . The grid impedance adaptation dual mode control strategy in weak grid [C]// 2018 International Power Electronics Conference , May 20-24 , 2018 , Niigata, Japan : 2973 - 2979 .
BIDADFAR A , SABORÍO-ROMANO O , NAIDU SAKAMURI J , et al . Coordinated control of HVDC and HVAC power transmission systems integrating a large offshore wind farm [J]. Energies , 2019 , 12 ( 18 ): 3435 .
付强 , 杜文娟 , 王海风 , 等 . 多端柔性直流输电中换流站的同步切换控制策略 [J]. 电网技术 , 2018 , 42 ( 4 ): 1241 - 1251 .
FU Qiang , DU Wenjuan , WANG Haifeng , et al . Synchronous switching control strategy for VSC station in MTDC network [J]. Power System Technology , 2018 , 42 ( 4 ): 1241 - 1251 .
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 - 23 .
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 - 23 .
李茵 , 苏建徽 , 徐华电 , 等 . 并网逆变器的VSG/PQ控制及其平滑切换方法 [J]. 电力电子技术 , 2019 , 53 ( 7 ): 111 - 114 .
LI Yin , SU Jianhui , XU Huadian , et al . VSG/PQ control of grid-connected inverter and smooth switching method [J]. Power Electronics , 2019 , 53 ( 7 ): 111 - 114 .
林渭勋 . 现代电力电子技术 [M]. 北京 : 机械工业出版社 , 2006 .
LIN Weixun . Modern power electronics [M]. Beijing : China Machine Press , 2006 .
徐海亮 , 吴瀚 , 李志 , 等 . 低短路比电网下含负序控制双馈风机稳定性研究的几个关键问题 [J]. 电工技术学报 , 2021 , 36 ( 22 ): 4688 - 4702 .
XU Hailiang , WU Han , LI Zhi , et al . Several key issues on stability study of DFIG-based wind turbines with negative sequence control during low short-circuit ratio power grids [J]. Transactions of China Electrotechnical Society , 2021 , 36 ( 22 ): 4688 - 4702 .
HUANG L B , XIN H H , WANG Z , et al . Transient stability analysis and control design of droop-controlled voltage source converters considering current limitation [J]. IEEE Transactions on Smart Grid , 2019 , 10 ( 1 ): 578 - 591 .
BARAN M E , WU F F . Network reconfiguration in distribution systems for loss reduction and load balancing [J]. IEEE Transactions on Power Delivery , 1989 , 4 ( 2 ): 1401 - 1407 .
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