渝鄂柔性直流输电系统中高频振荡影响因素及抑制策略

doi:10.11930/j.issn.1004-9649.202106054

中国电力 ›› 2022, Vol. 55 ›› Issue (7): 11-21.DOI: 10.11930/j.issn.1004-9649.202106054

渝鄂柔性直流输电系统中高频振荡影响因素及抑制策略

李奇南^1,2, 夏勇军³, 张晓林^1,2, 孙宝奎^1,2, 孙华东⁴, 张帆^1,2, 李兰芳^1,5, 杨岳峰^1,2, 韩情涛⁶

1. 南瑞集团有限公司（国网电力科学研究院有限公司）, 江苏南京 211106;
2. 北京市直流输配电工程技术研究中心（中电普瑞电力工程有限公司）, 北京 102200;
3. 国网湖北省电力有限公司电力科学研究院, 湖北武汉 430061;
4. 中国电力科学研究院有限公司, 北京 100192;
5. 中电普瑞科技有限公司, 北京 102200;
6. 国网湖北省电力有限公司直流运检公司, 湖北宜昌 443001

收稿日期:2021-06-24 修回日期:2022-05-10 出版日期:2022-07-28 发布日期:2022-07-20
作者简介:李奇南（1981—），男，通信作者，博士，工程师，从事柔性交、直流输电以及新能源并网研究，E-mail：liqinan@sgepri.sgcc.com.cn;夏勇军（1978—），男，博士，高级工程师，从事电力系统保护与控制相关的研究和应用工作，E-mail：xiayj6@hb.sgcc.com.cn;张晓林（1989—），女，硕士，从事柔性直流输电相关研究，E-mail：zhangxiaolin@sgepri.sgcc.com.cn
基金资助:
国家电网有限公司科技项目 (VSC/LCC直流并联混合多馈的近区电网动态功率协调控制研究，5100-202022011 A-0-0-00）。

Key Factors of Medium-High Frequency Oscillation in Chongqing-Hubei HVDC System and Suppression Strategies

LI Qinan^1,2, XIA Yongjun³, ZHANG Xiaolin^1,2, SUN Baokui^1,2, SUN Huadong⁴, ZHANG Fan^1,2, LI Lanfang^1,5, YANG Yuefeng^1,2, HAN Qingtao⁶

1. NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211006, China;
2. Beijing DC Transmission and Distribution Engineering Technology Research Center(China-EPRI Electrical Engineering Co., Ltd.), Beijing 102200, China;
3. Electric Power Research Institute of State Grid Hubei Electric Power Co., Ltd., Wuhan 430061, China;
4. China Electric Power Research Institute, Beijing 100192, China;
5. China EPRI Science & Technology Co., Ltd., Beijing 102200, China;
6. State Grid Hubei DC Inspection Company, Yichang 443001, China

Received:2021-06-24 Revised:2022-05-10 Online:2022-07-28 Published:2022-07-20
Supported by:
This work is supported by Science and Technology Project of SGCC (Research on Dynamic Power Coordinated Control of Near Area Power Grid with VSC/LCC Parallel Hybrid Multi-feed, No.5100-202022011 A-0-0-00)

摘要/Abstract

摘要： 针对柔性直流输电工程中出现的中高频振荡问题，现有解决方法是在电压前馈通道中增设滤波器以抑制高频振荡，但增加了中频振荡的风险。以渝鄂柔直工程南通道单元为研究对象，提出了一种通过调整控制链路延时以避免中、高频振荡的方法。首先，基于多谐波线性化原理建立了MMC换流站阻抗模型，详细分析控制链路延时、电网电压前馈策略对MMC换流站阻抗特性以及对系统稳定性的影响；然后，探讨通过调整控制链路延时以避免中高频振荡的可行性，并给出了控制链路延时的选择方法；最后，通过PSCAD/EMTDC电磁暂态仿真验证了所提方法可实现渝侧、鄂侧系统中高频振荡抑制，同时对系统动态特性影响较小。

关键词: 模块化多电平换流器, 阻抗特性, 中高频振荡, 延时, 柔性直流输电

Abstract: For the problem of medium and high frequency oscillations in flexible HVDC projects, the existing solution is to add a filter in the voltage feedforward path to suppress high frequency oscillations, which, however, increases the risk of medium frequency oscillations. For this reason, a method is proposed to avoid medium-high frequency oscillations by adjusting the control link delay based on the south channel of the Chongqing-Hubei flexible HVDC transmission project. Firstly, a impedance model of MMC converter station is established based on the principle of multi-harmonic linearization, and a comprehensive analysis is made on the influence of control link delay and grid voltage feedforward strategy on the impedance characteristics of MMC converter station and system stability. And then, the feasibility of adjusting the delay of the control link to avoid the medium-high frequency oscillation is discussed, and the method for selecting the time delay of the control link is given. Finally, based on PSCAD/EMTDC electromagnetic transient simulation, it is verified that the proposed method can achieve the suppression of the medium-high frequency oscillations in both the Hubei-side and Chongqing-side systems. Meanwhile, the proposed method has minor effect on the dynamic characteristics of the system.

Key words: modular multilevel converter (MMC), impedance characteristic, medium-high frequency oscillation, time delay, flexible HVDC transmission

李奇南, 夏勇军, 张晓林, 孙宝奎, 孙华东, 张帆, 李兰芳, 杨岳峰, 韩情涛. 渝鄂柔性直流输电系统中高频振荡影响因素及抑制策略[J]. 中国电力, 2022, 55(7): 11-21.

LI Qinan, XIA Yongjun, ZHANG Xiaolin, SUN Baokui, SUN Huadong, ZHANG Fan, LI Lanfang, YANG Yuefeng, HAN Qingtao. Key Factors of Medium-High Frequency Oscillation in Chongqing-Hubei HVDC System and Suppression Strategies[J]. Electric Power, 2022, 55(7): 11-21.

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参考文献

[1] 徐政. 柔性直流输电系统[M]. 2 版. 北京: 机械工业出版社, 2016.
[2] 李奇南,夏勇军,张晓林,等. 计及电压测量特性的MMC中高频阻抗建模及稳定性分析[J]. 中国电力, 2022, 55(5): 84–93
LI Qinan, XIA Yongjun, ZHANG Xiaolin, et al. Medium-high frequency impedance modeling of MMC and system stability analysis considering voltage measurement characteristics[J]. Electric Power, 2022, 55(5): 84–93
[3] SUN J, LIU H C. Sequence impedance modeling of modular multilevel converters[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017, 5(4): 1427–1443.
[4] BESSEGATO L, ILVES K, HARNEFORS L, et al. Effects of control on the AC-side admittance of a modular multilevel converter[J]. IEEE Transactions on Power Electronics, 2019, 34(8): 7206–7220.
[5] 年珩, 朱茂玮, 徐韵扬, 等. 双闭环定交流电压控制下MMC换流站阻抗建模及稳定性分析[J]. 电力系统自动化, 2020, 44(4): 81–90
NIAN Heng, ZHU Maowei, XU Yunyang, et al. Impedance modeling and system stability analysis of MMC with double closed-loop AC voltage control[J]. Automation of Electric Power Systems, 2020, 44(4): 81–90
[6] WERELEY N M. Analysis and control of linear periodically time varying systems[D]. Massachu setts Institute of Technology, 1991.
[7] 年珩, 朱茂玮, 徐韵扬, 等. 基于谐波传递矩阵的MMC换流站频率耦合特性建模与分析[J]. 电力系统自动化, 2020, 44(6): 75–83
NIAN Heng, ZHU Maowei, XU Yunyang, et al. Modeling and analysis of frequency coupling characteristic for MMC station based on harmonic transfer matrices[J]. Automation of Electric Power Systems, 2020, 44(6): 75–83
[8] 杜程茂, 杜雄, 邹小明, 等. 考虑频率耦合效应的并网模块化多电平变流器阻抗建模及稳定性分析[J]. 中国电机工程学报, 2020, 40(9): 2866–2877
DU Chengmao, DU Xiong, ZOU Xiaoming, et al. Impedance modeling and stability analysis of grid-connected modular multilevel converter considering frequency coupling effect[J]. Proceedings of the CSEE, 2020, 40(9): 2866–2877
[9] 郭贤珊, 刘泽洪, 李云丰, 等. 柔性直流输电系统高频振荡特性分析及抑制策略研究[J]. 中国电机工程学报, 2020, 40(1): 19–29,370
GUO Xianshan, LIU Zehong, LI Yunfeng, et al. Characteristic analysis of high-frequency resonance of flexible high voltage direct current and research on its damping control strategy[J]. Proceedings of the CSEE, 2020, 40(1): 19–29,370
[10] YIN T Y, WANG Y, YUE B, et al. Impedance-based stability analysis and stabilization control strategy of MMC-HVDC considering complete control loops[J]. IEEE Access, 2020, 8: 142900–142915.
[11] ZHU J H, HU J B, LIN L, et al. High-frequency oscillation mechanism analysis and suppression method of VSC-HVDC[J]. IEEE Transactions on Power Electronics, 2020, 35(9): 8892–8896.
[12] 冯俊杰, 邹常跃, 杨双飞, 等. 针对中高频谐振问题的柔性直流输电系统阻抗精确建模与特性分析[J]. 中国电机工程学报, 2020, 40(15): 4805–4820
FENG Junjie, ZOU Changyue, YANG Shuangfei, et al. Accurate impedance modeling and characteristic analysis of VSC-HVDC system for mid-and high-frequency resonance problems[J]. Proceedings of the CSEE, 2020, 40(15): 4805–4820
[13] 梅念, 尹诗媛, 魏争, 等. 考虑内部谐波耦合特性的MMC小信号建模及稳定性分析[J]. 电网技术, 2019, 43(12): 4495–4501
MEI Nian, YIN Shiyuan, WEI Zheng, et al. Small-signal modeling and stability analysis of MMC considering internal harmonic interactions[J]. Power System Technology, 2019, 43(12): 4495–4501
[14] 李岩, 邹常跃, 饶宏, 等. 柔性直流与极端交流系统间的谐波谐振[J]. 中国电机工程学报, 2018, 38(增刊1): 19–23
LI Yan, ZOU Changyue, RAO Hong, et al. Resonance of VSC-HVDC with extreme AC grid[J]. Proceedings of the CSEE, 2018, 38(S1): 19–23
[15] 侯延琦, 刘崇茹, 王宇, 等. 柔性直流输电系统高频振荡抑制策略研究[J]. 中国电机工程学报, 2021, 41(11): 3741–3751
HOU Yanqi, LIU Chongru, WANG Yu, et al. Research on the suppression strategy of high-frequency resonance for MMC-HVDC[J]. Proceedings of the CSEE, 2021, 41(11): 3741–3751
[16] 郭琦, 郭海平, 黄立滨. 电网电压前馈对柔性直流输电在弱电网下的稳定性影响[J]. 电力系统自动化, 2018, 42(14): 139–144
GUO Qi, GUO Haiping, HUANG Libin. Effect of grid voltage feedforward on VSC-HVDC stability in weak power grid[J]. Automation of Electric Power Systems, 2018, 42(14): 139–144
[17] ZOU Changyue, RAO Hong, XU Shukai, et al. Analysis of resonance between a VSC-HVDC converter and the AC grid[J]. IEEE Transactions on Power Electronics, 2018, 33(12): 10157–10168.
[18] 杜东冶, 郭春义, 贾秀芳, 等. 基于附加带阻滤波器的模块化多电平换流器高频谐振抑制策略[J]. 电工技术学报, 2021, 36(7): 1516–1525
DU Dongye, GUO Chunyi, JIA Xiufang, et al. Suppression strategy for high frequency resonance of modular multilevel converter based on additional band-stop filter[J]. Transactions of China Electrotechnical Society, 2021, 36(7): 1516–1525
[19] 郭贤珊, 刘斌, 梅红明, 等. 渝鄂直流背靠背联网工程交直流系统谐振分析与抑制[J]. 电力系统自动化, 2020, 44(20): 157–164
GUO Xianshan, LIU Bin, MEI Hongming, et al. Analysis and suppression of resonance between AC and DC systems in Chongqing-Hubei back-to-back HVDC project of China[J]. Automation of Electric Power Systems, 2020, 44(20): 157–164
[20] AHMED N, ?NGQUIST L, NORRGA S, et al. A computationally efficient continuous model for the modular multilevel converter[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2014, 2(4): 1139–1148.

渝鄂柔性直流输电系统中高频振荡影响因素及抑制策略

Key Factors of Medium-High Frequency Oscillation in Chongqing-Hubei HVDC System and Suppression Strategies

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渝鄂柔性直流输电系统中高频振荡影响因素及抑制策略

Key Factors of Medium-High Frequency Oscillation in Chongqing-Hubei HVDC System and Suppression Strategies

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