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

doi:10.19595/j.cnki.1000-6753.tces.231310

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Abstract The hybrid cascaded high voltage direct current (HVDC) system combines the advantages of line commutated converter (LCC) and modular multilevel converter (MMC), making it a prominent area of focus in both academic research and engineering applications. When an AC fault occurs in the hybrid cascaded HVDC system, it may lead to the first commutation failure of the LCC converter on the inverter side. During the recovery period of the system after the first commutation failure, significant fluctuations in the electrical quantity on the inverter side and large reactive power demand on the LCC may lead to subsequent commutation failures at the end of the recovery period, seriously endangering the stable operation of the power system. The investigation on hybrid cascaded HVDC system is presently in its initial phases. Current research largely concentrates on investigating the impact of MMC on reactive power support and improving the voltage dependent current order limitation (VDCOL) curve in order to address commutation failures and power recovery, without proposing corresponding coordinated control strategies from the perspective of balancing reactive power interaction and rapid power recovery. There is a lack of safe operating range of the system and in-depth research on the key issue of subsequent commutation failures. Thus, this paper proposes a coordinated control method utilizing MMC and VDCOL to effectively address both the mitigation of subsequent commutation failures and the rapid and stable restoration of power in hybrid cascaded HVDC system.
Firstly, the adverse effects of AC bus voltage phase advance on the inverter side during controller interaction and the reactive power demand of the LCC converter during VDOCL operation on system recovery were analyzed. Based on the consideration of the controller and MMC dynamic reactive power support, the fault security region of the hybrid cascaded HVDC system under the coupling of multiple electrical quantities on the inverter side was quantitatively established.
Secondly, by comparing and analyzing the fault security region of the hybrid cascaded HVDC system and LCC-HVDC, a coordinated control strategy based on MMC and VDCOL is proposed. While fully utilizing the dynamic reactive power support capability of MMC, the VDCOL curve is adjusted in real-time based on current deviation, achieving coordination between subsequent commutation failure suppression and rapid and stable power recovery of the system.
Finally, a simulation comparative analysis was conducted based on PSCAD/EMTDC under different severity AC faults, different short circuit ratios, and different fault durations to verify the effectiveness of the proposed coordinated control strategy and the variation of active power transmitted to the receiving power grid is the main influencing factor for the generation of AC bus voltage phase advance. The simulation results show that compared to the coordinated control strategy without input and the reactive power control strategy with only input, the coordinated control strategy based on MMC and VDCOL proposed in this paper can not only effectively suppress subsequent commutation failures in hybrid cascaded HVDC system, but also achieve fast and stable power recovery, reduce the fluctuation of various electrical quantities during system faults, and accelerate the recovery process of the system. The increase of active power can be up to 109.61% under severe faults, which has obvious advantages and certain engineering application values.

Key words： Hybrid cascaded HVDC system subsequent commutation failure fault recovery period fault security region corrdinated control strategy

Received: 14 August 2023

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TM72

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	Wang He
	Guo Jiazhi
	Bian Jing
	Li Guoqing
	Wang Tuo

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Wang He,Guo Jiazhi,Bian Jing等. 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.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.231310 OR https://dgjsxb.ces-transaction.com/EN/Y2024/V39/I5/1352

[1] 刘振亚, 秦晓辉, 赵良, 等. 特高压直流分层接入方式在多馈入直流电网的应用研究[J]. 中国电机工程学报, 2013, 33(10): 1-7, 25.
Liu Zhenya, Qin Xiaohui, Zhao Liang, et al.Study on the application of UHVDC hierarchical connection mode to multi-infeed HVDC system[J]. Proceedings of the CSEE, 2013, 33(10): 1-7, 25.
[2] 王增平, 刘席洋, 李林泽, 等. 多馈入直流输电系统换相失败边界条件[J]. 电工技术学报, 2017, 32(10): 12-19.
Wang Zengping, Liu Xiyang, Li Linze, et al.Boundary conditions of commutation failure in multi-infeed HVDC systems[J]. Transactions of China Electrote-chnical Society, 2017, 32(10): 12-19.
[3] 许汉平, 杨炜晨, 张东寅, 等. 考虑换相失败相互影响的多馈入高压直流系统换相失败判断方法[J]. 电工技术学报, 2020, 35(8): 1776-1786.
Xu Hanping, Yang Weichen, Zhang Dongyin, et al.Commutation failure judgment method for multi-infeed HVDC systems considering the interaction of commutation failures[J]. Transactions of China Electrotechnical Society, 2020, 35(8): 1776-1786.
[4] 王增平, 刘席洋, 郑博文, 等. 基于电压波形拟合的换相失败快速预测与抑制措施[J]. 电工技术学报, 2020, 35(7): 1454-1463.
Wang Zengping, Liu Xiyang, Zheng Bowen, et al.The research on fast prediction and suppression measures of commutation failure based on voltage waveform fitting[J]. Transactions of China Electrotechnical Society, 2020, 35(7): 1454-1463.
[5] 汤广福. 基于电压源换流器的高压直流输电技术[M]. 北京: 中国电力出版社, 2010.
[6] Guo Chunyi, Zhao Chengyong.Supply of an entirely passive AC network through a double-infeed HVDC system[J]. IEEE Transactions on Power Electronics, 2010, 25(11): 2835-2841.
[7] 刘泽洪, 王绍武, 种芝艺, 等. 适用于混合级联特高压直流输电系统的可控自恢复消能装置[J]. 中国电机工程学报, 2021, 41(2): 514-524.
Liu Zehong, Wang Shaowu, Chong Zhiyi, et al.Controllable and adaptive energy absorption device for hybrid cascaded UHVDC transmission system[J]. Proceedings of the CSEE, 2021, 41(2): 514-524.
[8] 徐政, 王世佳, 李宁璨, 等. 适用于远距离大容量架空线路的LCC-MMC串联混合型直流输电系统[J]. 电网技术, 2016, 40(1): 55-63.
Xu Zheng, Wang Shijia, Li Ningcan, et al.A LCC and MMC series hybrid HVDC topology suitable for bulk power overhead line transmission[J]. Power System Technology, 2016, 40(1): 55-63.
[9] Hong Lerong, Zhou Xiaoping, Liu Yifeng, et al.Analysis and improvement of the multiple controller interaction in LCC-HVDC for mitigating repetitive commutation failure[J]. IEEE Transactions on Power Delivery, 2021, 36(4): 1982-1991.
[10] Liu Lei, Lin Sheng, Liu Jian, et al.Analysis and prevention of subsequent commutation failures caused by improper inverter control interactions in HVDC systems[J]. IEEE Transactions on Power Delivery, 2020, 35(6): 2841-2852.
[11] 李培平, 姚伟, 高东学, 等. 基于电化学储能的多馈入直流系统暂态控制及影响因素分析[J]. 电工技术学报, 2021, 36(增刊1): 154-167.
Li Peiping, Yao Wei, Gao Dongxue, et al.Transient control and influencing factors analysis of multi-infeed HVDC system based on electrochemical energy storage[J]. Transactions of China Electrotechnical Society, 2021, 36(S1): 154-167.
[12] 汪娟娟, 郑睿娜, 傅闯, 等. 基于逆变站动态无功控制的后续换相失败抑制方法[J]. 电工技术学报, 2023, 38(17): 4672-4682.
Wang Juanjuan, Zheng Ruina, Fu Chuang, et al.A method based on constant reactive power control of inverter to suppress the subsequent commutation failure in HVDC system[J]. Transactions of China Electrotechnical Society, 2023, 38(17): 4672-4682.
[13] 汪家铭, 徐谦, 戴攀, 等. 基于无功反馈控制的后续换相失败抑制方法[J]. 电力系统自动化, 2021, 45(12): 101-108.
Wang Jiaming, Xu Qian, Dai Pan, et al.Suppression method of subsequent commutation failure based on reactive power feedback control[J]. Automation of Electric Power Systems, 2021, 45(12): 101-108.
[14] 朱龙臻, 牛翀, 王志冰, 等. 一种抑制连续换相失败的关断角动态补偿控制方法[J]. 中国电机工程学报, 2021, 41(22): 7621-7631.
Zhu Longzhen, Niu Chong, Wang Zhibing, et al.An extinction angle dynamic compensation control method for suppressing continuous commutation failure[J]. Proceedings of the CSEE, 2021, 41(22): 7621-7631.
[15] 程帆, 姚良忠, 王志冰, 等. 一种基于虚拟锁相电压的换相失败抑制策略[J]. 中国电机工程学报, 2020, 40(9): 2756-2766.
Cheng Fan, Yao Liangzhong, Wang Zhibing, et al.A commutation failure mitigation strategy based on virtual phase lock loop voltage[J]. Proceedings of the CSEE, 2020, 40(9): 2756-2766.
[16] 彭龙, 汤涌, 程帆, 等. 基于实时戴维南等值参数估计的LCC-HVDC后续换相失败抑制策略[J]. 中国电机工程学报, 2022, 42(9): 3151-3161.
Peng Long, Tang Yong, Cheng Fan, et al.A subsequent commutation failure suppression strategy for LCC-HVDC based on real-time thevenin equivalent parameter estimation[J]. Proceedings of the CSEE, 2022, 42(9): 3151-3161.
[17] 吕哲, 葛怀畅, 郭庆来, 等. 面向受端电网暂态电压稳定的高压直流系统主动控制研究[J]. 中国电机工程学报, 2022, 42(22): 8041-8053.
Lü Zhe, Ge Huaichang, Guo Qinglai, et al.Research on active control of HVDC system for transient voltage stability of receiving-end grid[J]. Proceedings of the CSEE, 2022, 42(22): 8041-8053.
[18] 曹善康, 魏繁荣, 林湘宁, 等. 一种基于自适应电压限值的换相失败抑制策略[J]. 电力系统保护与控制, 2023, 51(1): 165-175.
Cao Shankang, Wei Fanrong, Lin Xiangning, et al.A commutation failure suppression strategy based on adaptive voltage limits[J]. Power System Protection and Control, 2023, 51(1): 165-175.
[19] 李瑶佳, 汪娟娟, 李子林, 等. 考虑高压直流输电系统无功特性的低压限流参数设置[J]. 电力系统保护与控制, 2017, 45(16): 16-23.
Li Yaojia, Wang Juanjuan, Li Zilin, et al.VDCOL parameters setting influenced by reactive power characteristics of HVDC system[J]. Power System Protection and Control, 2017, 45(16): 16-23.
[20] Ouyang Jinxin, Zhang Zhen, Pang Mingyu, et al.Current-limit control method to prevent subsequent commutation failure of LCC-HVDC based on adaptive trigger voltage[J]. International Journal of Electrical Power & Energy Systems, 2020, 122: 106190.
[21] Ouyang Jinxin, Pang Mingyu, Zhang Zhen, et al.Fault security region modeling and adaptive current control method for the inverter station of DC transmission system[J]. IEEE Transactions on Power Delivery, 2022, 37(6): 4979-4988.
[22] Guo Chunyi, Wu Zhangxi, Yang Shuo, et al.Overcurrent suppression control for hybrid LCC/VSC cascaded HVDC system based on fuzzy clustering and identification approach[J]. IEEE Transactions on Power Delivery, 2022, 37(3): 1745-1753.
[23] Cheng Fan, Yao Liangzhong, Xu Jian, et al.A comprehensive AC fault ride-through strategy for HVDC link with serial-connected LCC-VSC hybrid inverter[J]. CSEE Journal of Power and Energy Systems, 2021, 8(1): 175-187.
[24] 樊鑫, 郭春义, 杜夏冰, 等. 特高压混合级联直流输电系统抑制逆变站后续换相失败的无功功率调控方法[J]. 电网技术, 2021, 45(9): 3443-3452.
Fan Xin, Guo Chunyi, Du Xiabing, et al.Reactive power coordinated control approach for suppressing subsequent commutation failure of inverter station in hybrid cascaded UHVDC system[J]. Power System Technology, 2021, 45(9): 3443-3452.
[25] Zhou Bohao, Li Bin, He Jiawei, et al.A novel mitigation strategy of subsequent commutation failures in the hybrid cascaded LCC-MMC HVDC transmission system[J]. International Journal of Electrical Power & Energy Systems, 2023, 148: 108969.
[26] Li Zhou, Wei Ziang, Zhan Ruopei, et al.System operational dispatching and scheduling strategy for hybrid cascaded multi-terminal HVDC[J]. International Journal of Electrical Power & Energy Systems, 2020, 122: 106195.
[27] 朱海, 郝亮亮, 和敬涵, 等. HVDC送端交流系统故障引起换相失败的机理分析[J]. 电工技术学报, 2023, 38(16): 4465-4478.
Zhu Hai, Hao Liangliang, He Jinghan, et al.Mechanism analysis of commutation failure caused by fault of HVDC sending end AC system[J]. Transactions of China Electrotechnical Society, 2023, 38(16): 4465-4478.
[28] Wang Puyu, Wang Yongkun, Jiang Ningqiang, et al.A comprehensive improved coordinated control strategy for a STATCOM integrated HVDC system with enhanced steady/transient state behaviors[J]. International Journal of Electrical Power & Energy Systems, 2020, 121: 106091.
[29] Wang Juanjuan, Huang Menghua, Fu Chuang, et al.A new recovery strategy of HVDC system during AC faults[J]. IEEE Transactions on Power Delivery, 2019, 34(2): 486-495.
[30] Cuo Chunyi, Zhao Wei, Wu Zhangxi, et al.Current balancing control approach for paralleled MMC groups in hybrid LCC/VSC cascaded HVDC system[J/OL]. CSEE Journal of Power and Energy Systems, 2023. DOI: 10.17775/CSEEJPES.2022.00630.