适用于柔性直流的辅助功率补偿下垂控制

doi:10.11930/j.issn.1004-9649.202203039

中国电力 ›› 2023, Vol. 56 ›› Issue (4): 119-129.DOI: 10.11930/j.issn.1004-9649.202203039

• 面向数字配电网的边缘计算与控制技术 • 上一篇下一篇

适用于柔性直流的辅助功率补偿下垂控制

林金娇¹, 孔祥平¹, 王楚扬², 张秋玥², 郑俊超¹, 张犁²

1. 国网江苏省电力有限公司电力科学研究院, 江苏南京 211103;
2. 河海大学能源与电气学院, 江苏南京 211100

收稿日期:2022-03-16 修回日期:2023-03-16 发布日期:2023-04-26
作者简介:林金娇(1996-),女,硕士,工程师,从事电力系统继电保护、柔性直流输电技术研究,E-mail:linjinjiaoyx@126.com;孔祥平(1995-),男,硕士,工程师,从事电力系统数字仿真、柔性直流输电技术研究,E-mail:kongxphust@163.com;王楚扬(1990-),男,通信作者,博士,讲师,从事电力电子装备以及电力电子化的电力系统研究,E-mail:wangchuyang@hhu.edu.cn;张秋玥(1999-),女,硕士研究生,从事电力电子化的电力系统建模及稳定性研究,E-mail:2969211927@qq.com
基金资助:
国家自然科学基金资助项目（52007052）；中国博士后基金面上资助项目（2020M671315）。

Droop Control Based Auxiliary Power Compensation for Power Systems with Flexible DC Transmission

LIN jinjiao¹, KONG Xiangping¹, WANG Chuyang², ZHANG Qiuyue², ZHENG Junchao¹, ZHANG Li²

1. Electric Power Research Institute, State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211103, China;
2. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China

Received:2022-03-16 Revised:2023-03-16 Published:2023-04-26
Supported by:
This work is supported by National Natural Science Foundation of China (No.52007052); China Postdoctoral Science Foundation (No.2020M671315).

摘要/Abstract

摘要： 目前，多端柔性直流互联系统中的模块化多电平换流站广泛采用下垂控制策略，可根据下垂特性曲线自主调节电压和功率。但是，该策略难以应对诸如换流站潮流翻转、换流站退出运行等突发工况下直流侧电压的异常波动。为此，建立了基于下垂控制策略的换流站线性模型，表明下垂控制使换流站调节速度难以满足突发工况的需求；在此基础上，针对突发工况下直流侧电压突变问题，提出了一种基于辅助功率补偿的改进型下垂控制策略。相比传统下垂控制，该策略无须改变换流站控制参数，稳定性更好，反应速度更快，抑制电压波动能力更强，较好地优化了直流互联系统应对突发工况时的性能，并通过仿真验证了该策略的有效性。

关键词: 多端柔性直流互联, 换流站, 下垂控制, 辅助功率补偿, 直流侧电压

Abstract: At present, the droop control strategy is widely used in modularized multilevel converter stations in multi-terminal flexible DC interconnection system, and the voltage and active power can be adjusted autonomously according to the droop characteristic curve. However, this strategy can barely handle the abnormal DC side voltage fluctuation caused by power flow reversal and outage of the converter station. Therefore, the linear model of converter station based on droop control strategy is firstly established in this paper, which shows that droop control increases the difficulty of meeting the demand of emergent conditions. On this basis, an improved droop control strategy based on auxiliary power compensation was proposed to solve the problem of DC side voltage mutation under emergent conditions. Compared with traditional droop control, this strategy does not need to change the control parameters of converter station. The reaction speed is faster, indicating stronger voltage fluctuation suppression capability. Meanwhile, the performance of the DC interconnection system to cope with sudden working conditions is optimized. Simulation results verify the effectiveness of the proposed control strategy.

Key words: multi-terminal flexible DC interconnection, converter station, droop control, auxiliary power compensation, DC side voltage

林金娇, 孔祥平, 王楚扬, 张秋玥, 郑俊超, 张犁. 适用于柔性直流的辅助功率补偿下垂控制[J]. 中国电力, 2023, 56(4): 119-129.

LIN jinjiao, KONG Xiangping, WANG Chuyang, ZHANG Qiuyue, ZHENG Junchao, ZHANG Li. Droop Control Based Auxiliary Power Compensation for Power Systems with Flexible DC Transmission[J]. Electric Power, 2023, 56(4): 119-129.

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参考文献

[1] 周原冰, 杨方, 余潇潇, 等. 中国能源电力碳中和实现路径及实施关键问题[J]. 中国电力, 2022, 55(5): 1–11
ZHOU Yuanbing, YANG Fang, YU Xiaoxiao, et al. Realization pathways and key problems of carbon neutrality in China’s energy and power system[J]. Electric Power, 2022, 55(5): 1–11
[2] 刘青, 张莉莉, 李江涛, 等. “十四五”期间中国电力需求增长趋势研判[J]. 中国电力, 2022, 55(1): 214–219
LIU Qing, ZHANG Lili, LI Jiangtao, et al. Study on the trend of China’s electricity consumption during the “14 th five year plan”[J]. Electric Power, 2022, 55(1): 214–219
[3] 文劲宇, 周博, 魏利屾. 中国未来电力系统储电网初探[J]. 电力系统保护与控制, 2022, 50(7): 1–10
WEN Jinyu, ZHOU Bo, WEI Lishen. Preliminary study on an energy storage grid for future power system in China[J]. Power System Protection and Control, 2022, 50(7): 1–10
[4] 俞拙非, 刘菲, 刘瑞环, 等. 面向配电网弹性提升的源网荷灵活资源优化研究综述及展望[J]. 中国电力, 2022, 55(4): 132–144
YU Zhuofei, LIU Fei, LIU Ruihuan, et al. Resilience-oriented optimization of source-grid-load flexible resources in distribution systems: review and prospect[J]. Electric Power, 2022, 55(4): 132–144
[5] 彭道刚, 张孟然, 沈丛奇, 等. 考虑不同控制策略下的多能互补能源互联网优化调度[J]. 电力科学与技术学报, 2022, 37(1): 17–28
PENG Daogang, ZHANG Mengran, SHEN Congqi, et al. Optimal scheduling of multi-energy complementary energy Internet considering different control strategies[J]. Journal of Electric Power Science and Technology, 2022, 37(1): 17–28
[6] 邹常跃, 韦嵘晖, 冯俊杰, 等. 柔性直流输电发展现状及应用前景[J]. 南方电网技术, 2022, 16(3): 1–7
ZOU Changyue, WEI Ronghui, FENG Junjie, et al. Development status and application prospect of VSC-HVDC[J]. Southern Power System Technology, 2022, 16(3): 1–7
[7] 单维康, 林超凡, 石文辉, 等. 基于运行可靠性的风电容量可信度研究[J]. 智慧电力, 2022, 50(1): 21–28
SHAN Weikang, LIN Chaofan, SHI Wenhui, et al. Analysis of wind power capacity credit considering operation reliability[J]. Smart Power, 2022, 50(1): 21–28
[8] 赵金利, 李雨薇, 李鹏, 等. 基于二阶锥规划的有源配电网SNOP电压无功时序控制方法[J]. 高电压技术, 2016, 42(7): 2134–2141
ZHAO Jinli, LI Yuwei, LI Peng, et al. Sequential voltage regulation of soft normally open point in active distribution network based on second-order cone programming[J]. High Voltage Engineering, 2016, 42(7): 2134–2141
[9] 宋毅, 孙充勃, 李鹏, 等. 基于智能软开关的有源配电网供电恢复方法[J]. 中国电机工程学报, 2018, 38(15): 4390–4398, 4639
SONG Yi, SUN Chongbo, LI Peng, et al. SOP based supply restoration method of active distribution networks using soft open point[J]. Proceedings of the CSEE, 2018, 38(15): 4390–4398, 4639
[10] 张释中, 裴玮, 杨艳红, 等. 基于柔性直流互联的多微网集成聚合运行优化及分析[J]. 电工技术学报, 2019, 34(5): 1025–1037
ZHANG Shizhong, PEI Wei, YANG Yanhong, et al. Optimization and analysis of multi-microgrid integrated aggregation operation based on flexible DC interconnection[J]. Transactions of China Electrotechnical Society, 2019, 34(5): 1025–1037
[11] 田艳军, 王坤, 彭飞, 等. 交流配电网中柔性直流互联装置阻抗稳定性分析及阻抗协同重塑控制[J]. 电力自动化设备, 2021, 41(5): 43–49
TIAN Yanjun, WANG Kun, PENG Fei, et al. Analysis of impedance stability and impedance coordinated reshaping control for flexible DC interconnection device in AC distribution network[J]. Electric Power Automation Equipment, 2021, 41(5): 43–49
[12] 刘闯, 张艳, 朱帝, 等. 中低压直流配电系统: 关键装备阻抗建模与稳定性分析[J]. 高电压技术, 2021, 47(11): 3968–3983
LIU Chuang, ZHANG Yan, ZHU Di, et al. Medium and low-voltage DC distribution system: impedance modeling and stability analysis of the key equipment[J]. High Voltage Engineering, 2021, 47(11): 3968–3983
[13] KARIMIANFARD H, HAGHIGHAT H. Generic resource allocation in distribution grid[J]. IEEE Transactions on Power Systems, 2019, 34(1): 810–813.
[14] MESSINA A R, PEREZ M A, HERNANDEZ E. Co-ordinated application of FACTS devices to enhance steady-state voltage stability[J]. International Journal of Electrical Power & Energy Systems, 2003, 25(4): 259–267.
[15] WU M, MA X T, DONG Z W, et al. Impact of droop coefficient on dynamic voltage stability of DC Grid[C]//2018 International Conference on Power System Technology (POWERCON). Guangzhou, China. IEEE, 2019: 2666–2671.
[16] YANG H Z, YUE G W, KANG L, et al. Droop control strategy of microgrid based on Dynamic droop Coefficient[J]. Measurement and control technology, 2018, 37(7): 127–131.
[17] 吴蒙, 贺之渊, 阎发友, 等. 下垂控制对直流电网动态电压稳定性的影响分析[J]. 电力系统保护与控制, 2019, 47(10): 8–15
WU Meng, HE Zhiyuan, YAN Fayou, et al. Influence of droop control on the dynamic voltage stability of DC grid analysis[J]. Power System Protection and Control, 2019, 47(10): 8–15
[18] 刘子文, 苗世洪, 范志华, 等. 基于自适应下垂特性的孤立直流微电网功率精确分配与电压无偏差控制策略[J]. 电工技术学报, 2019, 34(4): 795–806
LIU Ziwen, MIAO Shihong, FAN Zhihua, et al. Accurate power allocation and zero steady-state error voltage control of the islanding DC microgird based on adaptive droop characteristics[J]. Transactions of China Electrotechnical Society, 2019, 34(4): 795–806
[19] FATTAHI J, HAYSOM J E, COOK J, et al. Improved reactive power sharing with adaptive droop control in islanded microgrids[C]//2016 IEEE Electrical Power and Energy Conference (EPEC). Ottawa, ON, Canada. IEEE, 2016: 1–6.
[20] 陈继开, 董飞飞, 王振浩, 等. 适用于功率波动的多端柔性直流系统改进下垂控制方法[J]. 电网技术, 2018, 42(11): 3708–3717
CHEN Jikai, DONG Feifei, WANG Zhenhao, et al. Research on improved droop control method of multi-terminal MMC-HVDC system suitable for power fluctuation[J]. Power System Technology, 2018, 42(11): 3708–3717
[21] GARCERA G, FIGUERES E, PASCUAL M, et al. Novel analog adaptive 3-loop average current mode control of parallel DC-DC converters[C]//IEEE 2002 28 th Annual Conference of the Industrial Electronics Society. IECON 02. Seville, Spain. IEEE, 2003: 603–608.
[22] 刘刚, 王秀茹, 韩少华, 等. 柔性直流配电系统下垂系数选取范围研究[J]. 电力系统及其自动化学报, 2020, 32(4): 9–13, 20
LIU Gang, WANG Xiuru, HAN Shaohua, et al. Study on the scope of droop coefficient of voltage source converter based DC distribution system[J]. Proceedings of the CSU-EPSA, 2020, 32(4): 9–13, 20
[23] HAN Y, Ning X, LI L, et al. Droop coefficient correction control for power sharing and voltage restoration in hierarchical controlled DC microgrids[J]. International Journal of Electrical Power & Energy Systems, 2021, 133: 107277.
[24] PENG Z S, WANG J, BI D Q, et al. Droop control strategy incorporating coupling compensation and virtual impedance for microgrid application[J]. IEEE Transactions on Energy Conversion, 2019, 34(1): 277–291.
[25] HUO X X, XIE X F, WU Z J, et al. A novel DC voltage control strategy for DC distribution based on adaptive droop control[C]//2020 4 th International Conference on Green Energy and Applications (ICGEA). Singapore. IEEE, 2020: 40–44.

适用于柔性直流的辅助功率补偿下垂控制

Droop Control Based Auxiliary Power Compensation for Power Systems with Flexible DC Transmission

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适用于柔性直流的辅助功率补偿下垂控制

Droop Control Based Auxiliary Power Compensation for Power Systems with Flexible DC Transmission

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