四川大学电气工程学院,四川省成都市 610065
鲍晓东(2002—),男,硕士研究生,主要研究方向:高压直流输电及可控换相换流器线性化建模。E-mail:2024223035084@stu.scu.edu.cn
徐瑞廷(1999—),男,博士研究生,主要研究方向:高压直流输电技术、电力电子并网系统宽频振荡分析。E-mail:xuruiting322@163.com
江琴(1994—),女,通信作者,博士,副研究员,主要研究方向:新能源并网、直流输电、新型电力系统稳定与控制。E-mail:eejqin@scu.edu.cn
收稿:2025-09-25,
修回:2026-01-07,
网络首发:2026-06-29,
纸质出版:2026-11-25
移动端阅览
鲍晓东,徐瑞廷,江琴等.基于多开关函数的CLCC直流输电系统宽频建模与稳定性分析[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20250925001.
BAO Xiaodong,XU Ruiting,JIANG Qin,et al.Wide-frequency Modeling and Stability Analysis of Controllable Line-commutated Converter Based HVDC Transmission System Using Multiple Switching Functions[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20250925001.
鲍晓东,徐瑞廷,江琴等.基于多开关函数的CLCC直流输电系统宽频建模与稳定性分析[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20250925001. DOI:
BAO Xiaodong,XU Ruiting,JIANG Qin,et al.Wide-frequency Modeling and Stability Analysis of Controllable Line-commutated Converter Based HVDC Transmission System Using Multiple Switching Functions[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20250925001. DOI:
可控换相换流器(CLCC)是为解决常规高压直流输电换相失败问题而提出的新型直流换流装备,其动态特性研究在电力系统发展需求下日益重要。然而,CLCC在工作过程中存在复杂的非线性特性,使得CLCC在建模与分析时面临远超电网换相换流器的挑战。传统的建模方法难以有效描述系统中非线性与谐波耦合的动态特性,进而影响了对系统动态响应和稳定性的准确分析。文中针对强迫换相工况下的CLCC,提出了一种基于多开关函数的谐波状态空间建模方法,通过引入多阶段的开关函数,精准地描述了换相重叠过程中的动态特性,成功构建了12脉动CLCC的小信号线性化模型以及阻抗模型。此外,探讨了开关函数设立方式对建模的影响。最后,采用基于阻抗分析的系统稳定性评估方法,分析了影响系统稳定性的关键因素。仿真结果表明,该模型能够准确反映基于CLCC的高压直流输电系统的谐波阻抗特性,电压控制器、锁相环控制器增益均会对系统稳定性产生影响。
The controllable line-commute converter (CLCC) is a new type of DC converter equipment proposed to address the commutation failure issues in conventional high voltage direct current (HVDC) transmission systems. Research on its dynamic characteristics has become increasingly important under the development demands of power systems. However
CLCC exhibits complex nonlinear characteristics during operation
which makes its modeling and analysis far more challenging than that of the line commutated converter. Traditional modeling methods struggle to effectively describe the dynamic characteristics of nonlinearity and harmonic coupling within the system
consequently affecting the accurate analysis of system dynamic response and stability. This paper proposes a harmonic state space (HSS) modeling approach based on multiple switching functions for the CLCC under the forced commutation condition. By introducing multi-stage switching functions
the method accurately describes the dynamic characteristics during commutation overlap periods
successfully constructing both a small-signal linearized model and an impedance model for the 12-pulse CLCC. In addition
the impact of switching function configuration on modeling accuracy is investigated. Finally
a system stability assessment method based on impedance analysis is employed to analyze key factors influencing system stability. The simulation results demonstrate that the proposed model accurately captures the harmonic impedance characteristics of the CLCC-HVDC transmission system
while revealing that both the gains of the voltage controller and the phase-locked loop controller affect the system stability.
李立浧 . 特高压直流输电的技术特点与工程应用 [J]. 电力设备 , 2006 ( 3 ): 1 - 4 .
Li Licheng . Technical characteristics and engineering applications of UHVDC power transmission [J]. Electrical Equipment , 2006 ( 3 ): 1 - 4 .
饶宏 , 周月宾 , 李巍巍 , 等 . 柔性直流输电技术的工程应用和发展展望 [J]. 电力系统自动化 , 2023 , 47 ( 1 ): 1 - 11 .
Rao Hong , Zhou Yuebin , Li Weiwei , et al . Engineering application and development prospect of VSC-HVDC transmission technology [J]. Automation of Electric Power Systems , 2023 , 47 ( 1 ): 1 - 11 .
王鹤 , 郭家治 , 边竞 , 等 . 基于故障安全域的混合级联直流输电系统后续换相失败抑制策略 [J]. 电工技术学报 , 2024 , 39 ( 5 ): 1352 - 1371 .
Wang He , Guo Jiazhi , Bian Jing , et al . Subsequent commutation failure suppression strategy for hybrid cascaded HVDC system based on fault security region [J]. Transactions of China Electrotechnical Society , 2024 , 39 ( 5 ): 1352 - 1371 .
李康 , 黄萌 , 查晓明 , 等 . 高压直流输电系统可靠性分析方法综述 [J]. 电力系统保护与控制 , 2024 , 52 ( 9 ): 174 - 187 .
Li Kang , Huang Meng , Zha Xiaoming , et al . An overview of reliability analysis methods for an HVDC transmission system [J]. Power System Protection and Control , 2024 , 52 ( 9 ): 174 - 187 .
Gao C , Yang J , He Z Y , et al . Novel controllable-line-commutated converter for eliminating commutation failures of LCC-HVDC system [J]. IEEE Transactions on Power Delivery , 2023 , 38 ( 1 ): 255 - 267 .
高冲 , 贺之渊 , 杨俊 , 等 . 新型可控电网换相换流器拓扑及其控制方法 [J]. 中国电机工程学报 , 2023 , 43 ( 5 ): 1940 - 1949 .
Gao Chong , He Zhiyuan , Yang Jun , et al . A novel controllable line commutated converter topology and control strategy [J]. Proceedings of the CSEE , 2023 , 43 ( 5 ): 1940 - 1949 .
高冲 , 盛财旺 , 王蒲瑞 , 等 . 可控换相换流阀可控关断试验研究及工程应用 [J]. 电网技术 , 2025 , 49 ( 1 ): 408 - 416 .
Gao Chong , Sheng Caiwang , Wang Purui , et al . Research and engineering applications on the turn-off test for HVDC controllable line commutated converter valve [J]. Power System Technology , 2025 , 49 ( 1 ): 408 - 416 .
文劲宇 , 孟沛彧 , 向往 , 等 . 面向新型电力系统的直流输电换流器统一拓扑架构 [J]. 新型电力系统 , 2023 , 1 ( 1 ): 84 - 98 .
Wen Jinyu , Meng Peiyu , Xiang Wang , et al . Unified high voltage direct current converter topology dedicated for new power systems [J]. New Type Power Systems , 2023 , 1 ( 1 ): 84 - 98 .
Love G N , Wood A R . Harmonic state space model of power electronics [C]// 2008 13th International Conference on Harmonics and Quality of Power , 2008 : 1 - 6 .
Almer S , Jonsson U . Dynamic phasor analysis of periodic systems [J]. IEEE Transactions on Automatic Control , 2009 , 54 ( 8 ): 2007 - 2012 .
Chen X , Ma J P , Wang S L , et al . An accurate impedance model of line commutated converter with variable commutation overlap [J]. IEEE Transactions on Power Delivery , 2022 , 37 ( 1 ): 562 - 572 .
赵玉静 , 牟倩颖 , 宾子君 , 等 . 考虑直流侧动态的跟网型变换器稳定性分析 [J]. 电力工程技术 , 2024 , 43 ( 3 ): 12 - 22 .
Zhao Yujing , Mou Qianying , Bin Zijun , et al . Stability analysis of grid-following converter considering DC side dynamics [J]. Electric Power Engineering Technology , 2024 , 43 ( 3 ): 12 - 22 .
Jiang K Z , Hu P , Cao K , et al . Small-signal modeling and interaction analysis of LCC-HVDC systems based on harmonic state space theory [J]. IEEE Access , 2022 , 10 : 109937 - 109948 .
Liu T Q , Xu R T , Jiang Q , et al . Multiple switching functions based HSS model of LCC considering variable commutation angle and harmonic couplings [J]. IEEE Transactions on Power Delivery , 2023 , 38 ( 6 ): 3820 - 3833 .
Yang D S , Wang X F . Unified modular state-space modeling of grid-connected voltage-source converters [J]. IEEE Transactions on Power Electronics , 2020 , 35 ( 9 ): 9700 - 9715 .
Daryabak M , Filizadeh S , Jatskevich J , et al . Modeling of LCC-HVDC systems using dynamic phasors [J]. IEEE Transactions on Power Delivery , 2014 , 29 ( 4 ): 1989 - 1998 .
Qi Y , Zhao H F , Fan S T , et al . Small signal frequency-domain model of a LCC-HVDC converter based on an infinite series-converter approach [J]. IEEE Transactions on Power Delivery , 2019 , 34 ( 1 ): 95 - 106 .
马宁宁 , 谢小荣 , 贺静波 , 等 . 高比例新能源和电力电子设备电力系统的宽频振荡研究综述 [J]. 中国电机工程学报 , 2020 , 40 ( 15 ): 4720 - 4732 .
Ma Ningning , Xie Xiaorong , He Jingbo , et al . Review of wide-band oscillation in renewable and power electronics highly integrated power systems [J]. Proceedings of the CSEE , 2020 , 40 ( 15 ): 4720 - 4732 .
贺之渊 , 高冲 , 叶洪波 , 等 . 可控换相换流器研制及其工程应用 [J]. 电力系统自动化 , 2024 , 48 ( 19 ): 181 - 191 .
He Zhiyuan , Gao Chong , Ye Hongbo , et al . Development and engineering application of controllable line commutated converter [J]. Automation of Electric Power Systems , 2024 , 48 ( 19 ): 181 - 191 .
黄永瑞 , 韩坤 , 胡秋玲 , 等 . 基于可控消能的直流系统故障下送端交流过电压抑制 [J]. 电力工程技术 , 2025 , 44 ( 4 ): 138 - 146 .
Huang Yongrui , Han Kun , Hu Qiuling , et al . Suppression of AC overvoltage at sending end under DC transmission system fault based on controllable energy dissipation [J]. Electric Power Engineering Technology , 2025 , 44 ( 4 ): 138 - 146 .
刘海洋 , 孙天甲 , 杜炤鑫 , 等 . 新型可控换相换流阀特征建模与短路特性 [J]. 电网与清洁能源 , 2024 , 40 ( 10 ): 76 - 83 .
Liu Haiyang , Sun Tianjia , Du Zhaoxin , et al . The characteristic modeling and short-circuit characteristics of the novel controllable line commutation valve [J]. Power System and Clean Energy , 2024 , 40 ( 10 ): 76 - 83 .
杨志强 , 王仙荣 , 邹凯凯 , 等 . 海上风电柔直系统中频振荡抑制方法及工程验证 [J]. 电力工程技术 , 2025 , 44 ( 5 ): 109 - 116 .
Yang Zhiqiang , Wang Xianrong , Zou Kaikai , et al . Mid-frequency oscillation suppression methodology for offshore wind power VSC-HVDC system and its engineering validation [J]. Electric Power Engineering Technology , 2025 , 44 ( 5 ): 109 - 116 .
周攀 , 刘天琪 , 王顺亮 , 等 . 考虑谐波耦合特性的LCC-HVDC换流站小信号建模 [J]. 电网技术 , 2021 , 45 ( 1 ): 153 - 161 .
Zhou Pan , Liu Tianqi , Wang Shunliang , et al . Small signal modeling of LCC-HVDC station with consideration of harmonic coupling characteristics [J]. Power System Technology , 2021 , 45 ( 1 ): 153 - 161 .
王杨 , 夏菲 , 田旭 , 等 . 基于谐波状态空间的高压直流输电系统SISO阻抗建模及稳定性分析 [J]. 中国电机工程学报 , 2024 , 44 ( 5 ): 1985 - 1999 .
Wang Yang , Xia Fei , Tian Xu , et al . SISO impedance modeling and stability analysis of HVDC system based on harmonic state space [J]. Proceedings of the CSEE , 2024 , 44 ( 5 ): 1985 - 1999 .
才利存 , 李娟 , 张坤 , 等 . 可控换相换流器运行试验研究 [J]. 电力电子技术 , 2025 , 59 ( 1 ): 9 - 12 .
Cai Licun , Li Juan , Zhang Kun , et al . Research on controllable line commutated converter operational test [J]. Power Electronics , 2025 , 59 ( 1 ): 9 - 12 .
Feng Q , Du Z X , Pan A Q , et al . Harmonic analysis of CLCC-HVDC based on switching function [C]// 2024 21st International Conference on Harmonics and Quality of Power (ICHQP) , 2024 : 391 - 396 .
郭春义 , 宁琳如 , 王虹富 , 等 . 基于开关函数的LCC-HVDC换流站动态模型及小干扰稳定性 [J]. 电网技术 , 2017 , 41 ( 12 ): 3862 - 3870 .
Guo Chunyi , Ning Linru , Wang Hongfu , et al . Switching-function based dynamic model of LCC-HVDC station and small signal stability analysis [J]. Power System Technology , 2017 , 41 ( 12 ): 3862 - 3870 .
Xu Z G , Li B B , Han L J , et al . A complete HSS-based impedance model of MMC considering grid impedance coupling [J]. IEEE Transactions on Power Electronics , 2020 , 35 ( 12 ): 12929 - 12948 .
Sun J . Impedance-based stability criterion for grid-connected inverters [J]. IEEE Transactions on Power Electronics , 2011 , 26 ( 11 ): 3075 - 3078 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621