A Characterization Method for Coupling Relation in Multi-Infeed HVDC System

doi:10.11930/j.issn.1004-9649.202006134

Abstract

Abstract: At present, many HVDC/UHVDC projects are feeding into the East China Power Grid, and the interaction and coupling between AC and DC systems are complex. In order to characterize the coupling relation of multiple DC systems, an AC voltage distortion coupling coefficient of multi-infeed HVDC (ACDCC)is proposed. By calculating the bus AC voltage distortion of one inverter station caused by other HVDC system’s internal fault, the coupling coefficient of multiple DC systems is obtained, which covers an integrated assessment of such factors as the influence of DC transmission capacity on the AC system, the different response characteristics of HVDC control and protection system with different technical routes, and the AC system impedance characteristics between inverter stations. The concept of coupling area is put forward using coupling coefficient, which can be used to evaluate the simultaneous commutation failure risk of multi-infeed HVDC systems. A simulation verification is carried out on the multi-infeed system of East China Power Grid, and the results show that the proposed coupling coefficient and the characterization of coupling areas are basically consistent with the actual power system conditions. Therefore, the coupling coefficient can provide an important technical reference for the planning and operation of DC systems.

Key words: UHVDC, commutation failure, DC coupling, multi-infeed

LEI Xiao, SUN Xu, WANG Weiwei, LIU Lin, LI Xinnian, PANG Guangheng. A Characterization Method for Coupling Relation in Multi-Infeed HVDC System[J]. Electric Power, 2021, 54(9): 66-73.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202006134

https://www.electricpower.com.cn/EN/Y2021/V54/I9/66

References

[1] 赵畹君. 高压直流输电工程技术[M]. 北京: 中国电力出版社, 2004.
[2] 李兴源. 高压直流输电系统的运行和控制[M]. 北京: 科学出版社, 1998.
[3] 曾南超. 高压直流输电在我国电网发展中的作用[J]. 高电压技术, 2004, 30(11): 11-12
ZENG Nanchao. Role of HVDC transmission in the power system development in China[J]. High Voltage Engineering, 2004, 30(11): 11-12
[4] 罗汉武, 乐健, 毛涛, 等. 扎鲁特—青州±800 kV特高压直流输电工程运行特性分析[J]. 电力自动化设备, 2019, 39(1): 53-59
LUO Hanwu, LE Jian, MAO Tao, et al. Analysis of operation characteristics of Zhalute-Qingzhou ±800 kV UHVDC system[J]. Electric Power Automation Equipment, 2019, 39(1): 53-59
[5] 沈郁, 熊永新, 姚伟, 等. ±1100 kV特高压直流输电受端接入方式的综合评估[J]. 电力自动化设备, 2018, 38(8): 195-202
SHEN Yu, XIONG Yongxin, YAO Wei, et al. Comprehensive evaluation for receiving end connection scheme of ±1100 kV UHVDC power transmission[J]. Electric Power Automation Equipment, 2018, 38(8): 195-202
[6] 王兵, 贾育培, 严剑峰, 等. 特高压交直流混联电网故障反演系统的体系架构与关键技术[J]. 中国电力, 2020, 53(6): 64-71
WANG Bing, JIA Yupei, YAN Jianfeng, et al. The architecture and key technologies of fault inversion system for hybrid UHV AC/DC power grid[J]. Electric Power, 2020, 53(6): 64-71
[7] CIGRE Working Group B4.41. Systems with multiple DC infeed[R]. Paris: CIGRE, 2008.
[8] DENIS L H A. Voltage and power interactions in multi-infeed HVDC systems (Draft)[EB/OL]. 2007. Research Report: DL/07/01 Rev.1.4. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.721.5198&rep=rep1&type=pdf.
[9] 林伟芳, 汤涌, 卜广全. 多馈入交直流系统短路比的定义和应用[J]. 中国电机工程学报, 2008, 28(31): 1-8
LIN Weifang, TANG Yong, BU Guangquan. Definition and application of short circuit ratio for multi-infeed AC/DC power systems[J]. Proceedings of the CSEE, 2008, 28(31): 1-8
[10] 张啸虎, 陈陈. 系统结构对多馈入直流系统短路比的影响[J]. 中国电机工程学报, 2018, 38(16): 4777-4783, 4982
ZHANG Xiaohu, CHEN Chen. Influence of system structure on multi-infeed HVDC short circuit ratio[J]. Proceedings of the CSEE, 2018, 38(16): 4777-4783, 4982
[11] 邵瑶, 汤涌. 多馈入直流系统交互作用因子的影响因素分析[J]. 电网技术, 2013, 37(3): 794-799
SHAO Yao, TANG Yong. Analysis of influencing factors of multi-infeed HVDC system interaction factor[J]. Power System Technology, 2013, 37(3): 794-799
[12] 郑超, 盛灿辉, 林俊杰, 等. 特高压直流输电系统动态响应对受端交流电网故障恢复特性的影响[J]. 高电压技术, 2013, 39(3): 555-561
ZHENG Chao, SHENG Canhui, LIN Junjie, et al. Influence of UHVDC transmission system dynamic response on AC receiving end's failure recovery characteristics[J]. High Voltage Engineering, 2013, 39(3): 555-561
[13] 夏成军, 王真, 杜兆斌. 考虑直流系统控制方式的多馈入交互作用因子实用计算方法[J]. 电网技术, 2017, 41(11): 3532-3540
XIA Chengjun, WANG Zhen, DU Zhaobin. Practical calculation method for multi-infeed interaction factor considering HVDC system control modes[J]. Power System Technology, 2017, 41(11): 3532-3540
[14] 刘席洋, 王增平, 乔鑫, 等. 交直流混联电网换相失败分类及抑制措施研究综述[J]. 智慧电力, 2020, 48(6): 1-7,34
LIU Xiyang, WANG Zengping, QIAO Xin, et al. Review on classification and mitigation measures of commutation failures in AC-DC hybrid power grids[J]. Smart Power, 2020, 48(6): 1-7,34
[15] 袁阳, 卫志农, 雷霄, 等. 直流输电系统换相失败研究综述[J]. 电力自动化设备, 2013, 33(11): 140-147
YUAN Yang, WEI Zhinong, LEI Xiao, et al. Survey of commutation failures in DC transmission systems[J]. Electric Power Automation Equipment, 2013, 33(11): 140-147
[16] 张正卫, 陈得治, 卜广全, 等. 多直流馈入的特高压环网安全稳定控制措施研究[J]. 电力系统保护与控制, 2019, 47(19): 46-53
ZHANG Zhengwei, CHEN Dezhi, BU Guangquan, et al. Research on safety and stability control measures of UHV loop network with multiple DC feeding[J]. Power System Protection and Control, 2019, 47(19): 46-53
[17] 张彦涛, 邱丽萍, 施浩波, 等. 考虑不对称故障影响的多馈入直流系统换相失败快速判别方法[J]. 中国电机工程学报, 2018, 38(16): 4759-4767, 4980
ZHANG Yantao, QIU Liping, SHI Haobo, et al. Fast detection method of commutation failure in multi infeed DC system considering the effect of unbalanced fault[J]. Proceedings of the CSEE, 2018, 38(16): 4759-4767, 4980
[18] 雷霄, 许自强, 王华伟, 等. ±800 kV特高压直流输电工程实际控制保护系统仿真建模方法与应用[J]. 电网技术, 2013, 37(5): 1359-1364
LEI Xiao, XU Ziqiang, WANG Huawei, et al. A modeling method for actual control and protection system of ±800 kV UHVDC transmission project and its application[J]. Power System Technology, 2013, 37(5): 1359-1364
[19] 郑超, 周静敏, 李惠玲, 等. 换相失败预测控制对电压稳定性影响及优化措施[J]. 电力系统自动化, 2016, 40(12): 179-183
ZHENG Chao, ZHOU Jingmin, LI Huiling, et al. Impact of commutation failure prediction control on voltage stability and its optimization measures[J]. Automation of Electric Power Systems, 2016, 40(12): 179-183
[20] 王玉, 侯玉强, 刘福锁, 等. 考虑多直流协调恢复的换相失败预测控制启动值优化方法[J]. 电力系统自动化, 2018, 42(22): 85-90, 158
WANG Yu, HOU Yuqiang, LIU Fusuo, et al. Optimization method for startup threshold of commutation failure prediction control considering coordinated recovery of multi-infeed HVDC systems[J]. Automation of Electric Power Systems, 2018, 42(22): 85-90, 158