基于改进模态分析法的柔性多端交直流混联系统静态电压稳定性评估

doi:10.19595/j.cnki.1000-6753.tces.201031

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Abstract Based on the steady-state model characteristics of the AC/VSC-MTDC hybrid system, the traditional modal analysis method is improved and applied to the static voltage stability assessment on the AC/VSC-MTDC hybrid system for the first time. By decoupling AC and DC, the interaction between AC and DC systems can be deeply analyzed. Participation factor index to the traditional modal analysis was improved, for the first time a new state-in-modal index is applied to AC/DC hybrid systems. The critical modes are represented as the weighted sum of the system states, which can clearly reflect the formation process of the critical mode, thus finding the system state’s contribution to the critical mode, so as to take corresponding measures to enhance the voltage stability of AC/DC system. Compared with the traditional participation factor index, the state-mode index can also consider the influence of active power on voltage stability, so as to further quantify the control power change of VSC station and the influence of VSC station when its connecting position to AC system changes. Finally, the validity and feasibility of the proposed method and index are verified by the test and analysis on an improved IEEE 57 AC/DC system.

Key words： Static voltage stability assessment modal analysis voltage source converter-multiple terminal direct current (VSC-MTDC) AC/DC hybrid system power flow equation

Received: 14 August 2020

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TM712

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	Guo Xiaoying
	Tang Junjie
	Shu Tong
	Peng Sui
	Xie Kaigui

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Guo Xiaoying,Tang Junjie,Shu Tong等. Static Voltage Stability Assessment on Hybrid Alternating Current/Voltage Source Converter-Multiple Terminal Direct Current System Using Improved Modal Analysis[J]. Transactions of China Electrotechnical Society, 2021, 36(17): 3741-3752.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201031 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I17/3741

[1] 刘英培, 解赛, 梁海平, 等. 计及换流站间电压误差的VSC-MTDC系统自适应下垂控制[J]. 电工技术学报, 2020, 35(15): 3270-3280.
Liu Yingpei, Xie Sai, Liang Haiping, et al.Adaptive droop control strategy for VSC-MTDC system considering DC voltage errors among converter stations[J]. Transactions of China Electrotechnical Society, 2020, 35(15): 3270-3280.
[2] 陈鹏远, 黎灿兵, 周斌, 等. 异步互联电网VSC-HVDC 紧急功率支援与动态区域控制偏差协调控制策略[J]. 电工技术学报, 2019, 34(14): 3025-3034.
Chen Pengyuan, Li Canbing, Zhou Bin, et al.Coordination control strategy of emergency power support and dynamic regional control deviation for asynchronous interconnected power system VSC-HVDC[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 3025-3034.
[3] 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 voltage unbiased control strategy for isolated DC microgrid based on adaptive droop characteristics[J]. Transactions of China Electrotech-nical Society, 2019, 34(4): 795-806.
[4] 弓帅, 张文, 谢季平. 混合多馈入交直流混联系统中长期电压分级协调控制[J]. 电力系统自动化, 2020, 44(22): 54-61.
Gong Shuai, Zhang Wen, Xie Jiping.Hierarchical coordinated medium and long-term voltage control in hybrid multi-infeed AC/DC system[J]. Automation of Electric Power Systems, 2020, 44(22): 54-61.
[5] 李岩, 滕云, 冷欧阳, 等. 含多端柔性直流互联的交直流电力系统静态安全分析[J]. 电力系统自动化, 2019, 43(10): 155-163.
Li Yan, Teng Yun, Leng Ouyang, et al.Static security analysis of AC/DC power system with multi-terminal flexible DC[J]. Automation of Electric Power Systems, 2019, 43(10): 155-163.
[6] 董新洲, 汤涌, 卜广全, 等. 大型交直流混联电网安全运行面临的问题与挑战[J]. 中国电机工程学报, 2019, 39(11): 3107-3119.
Dong Xinzhou, Tang Yong, Bu Guangquan, et al.Confronting problem and challenge of large scale AC-DC hybrid power grid operation[J]. Proceedings of the CSEE, 2019, 39(11): 3107-3119.
[7] 段献忠, 袁骏, 何仰赞, 等. 电力系统电压稳定灵敏度分析方法[J]. 电力系统自动化, 1997, 21(4): 12-15.
Duan Xianzhong, Yuan Jun, He Yangzan, et al.Sensitivity analysis method on voltage stability of electric power system[J]. Automation of Electric Power Systems, 1997, 21(4): 12-15.
[8] Lee B, Ajjarapu V.Invariant subspace parametric sensitivity (ISPS) of structure-preserving power system models[J]. IEEE Transactions on Power Systems, 1996, 11(2): 845-850.
[9] Flatabo N, Ognedal R, Carlsen T.Voltage stability condition in a power transmission system calculated by sensitivity methods[J]. IEEE Transactions on Power Systems, 1990, 5(4): 1286-1293.
[10] 伍利, 古婷婷, 姚李孝. 基于改进连续潮流法的静态电压稳定分析[J]. 电网技术, 2011, 35(10): 99-103.
Wu Li, Gu Tingting, Yao Lixiao.Static voltage stability analysis based on improved continuation power flow[J]. Power System Technology, 2011, 35(10): 99-103.
[11] 陈厚合, 黄亚磊, 姜涛, 等. 含VSC-HVDC的交直流系统电压稳定分析与控制[J]. 电网技术, 2017, 41(8): 2429-2438.
Chen Houhe, Huang Yalei, Jiang Tao, et al.Voltage stability analysis and control for AC/DC system with VSC-HVDC[J]. Power System Technology, 2017, 41(8): 2429-2438.
[12] Canizares C A, Alvarado F L.Point of collapse and continuation methods for large AC/DC systems[J]. IEEE Transactions on Power Systems, 1993, 8(1): 1-8.
[13] 王红燕, 蔡亮, 祁中建. 求取电力系统PV曲线的改进连续潮流算法[J]. 电气技术, 2011, 12(7): 28-31.
Wang Hongyan, Cai Liang, Qi Zhongjian.Improved continuation power flow in tracing PV curves of power systems[J]. Electrical Engineering, 2011, 12(7): 28-31.
[14] Yan Wei, Ding Chong, Ren Zhouyang, et al.A continuation power flow model of multi-area AC/DC interconnected bulk systems incorporating voltage source converter-based multi-terminal DC networks and its decoupling algorithm[J]. Energies, 2019, 12(4): 733.
[15] Xiao Hao, Li Yinhong, Shi Dongyuan, et al.Evaluation of strength measure for static voltage stability analysis of hybrid multi-infeed DC systems[J]. IEEE Transactions on Power Delivery, 2019, 34(3): 879-890.
[16] 辛焕海, 章枫, 于洋, 等. 多馈入直流系统广义短路比:定义与理论分析[J]. 中国电机工程学报, 2016, 36(3): 633-647.
Xin Huanhai, Zhang Feng, Yu Yang, et al.Generalized short circuit ratio for multi-infeed DC systems: definition and theoretical analysis[J]. Proceedings of the CSEE, 2016, 36(3): 633-647.
[17] 潘学萍, 李乐, 黄华, 等. 综合灵敏度和静态电压稳定裕度的直流受端交流系统电压薄弱区域评估方法[J]. 电力自动化设备, 2019, 39(3): 1-8.
Pan Xueping, Li Le, Huang Hua, et al.A method for evaluating the weak area of DC receiver AC systems with a combination of sensitivity and static voltage stability margin[J]. Electric Power Automation Equipment, 2019, 39(3): 1-8.
[18] Gao B, Morison G K, Kundur P.Voltage stability evaluation using modal analysis[J]. IEEE Transactions on Power Systems, 1992, 7(4): 1529-1542.
[19] 韩光, 丁晓群, 刘小波, 等. 基于模态技术和Q-U曲线的一种电压稳定性指标[J]. 继电器, 2006, 34(6): 21-23.
Han Guang, Ding Xiaoqun, Liu Xiaobo, et al.A voltage stability index based on modal technology and Q-U curve[J]. Relay, 2006, 34(6): 21-23.
[20] Song Yue, Hill D J, Liu Tao.State-in-mode analysis of the power flow jacobian for static voltage stability[J]. International Journal of Electrical Power and Energy Systems, 2019, 105: 671-678.
[21] 吴杰康, 张飚, 陈国通. 运用特征值法确定交直流系统电压失稳区[J]. 继电器, 2006, 34(7): 27-31.
Wu Jiekang, Zhang Biao, Chen Guotong.Voltage weak stability zone calculation of AC/DC system using eigenvalue method[J]. Relay, 2006, 34(7): 27-31.
[22] 杜萍静, 杨明, 曹良晶, 等. 含电压源换流器交直流系统的仿射潮流算法[J]. 电工技术学报, 2020, 35(5): 1106-1117.
Du Pingjing, Yang Ming, Cao Liangjing, et al.Affine power flow algorithm for AC/DC systems with voltage source converter[J]. Transactions of China Electrotechnical Society, 2020, 35(5): 1106-1117.
[23] 邵冰冰, 赵书强, 高本锋, 等. 连接弱交流电网的VSC-HVDC失稳机理及判据研究[J]. 电工技术学报, 2019, 34(18): 3884-3896.
Shao Bingbing, Zhao Shuqiang, Gao Benfeng, et al.Instability mechanism and criterion analysis of VSC-HVDC connected to the weak AC power grid[J]. Transactions of China Electrotechnical Society, 2019, 34(18): 3884-3896.
[24] Chai Runze, Zhang Baohui, Bo Zhiqian, et al.A generalized unified power flow algorithm for AC/DC networks containing VSC-based multi-terminal DC grid[C]//2014 International Conference on Power System Technology, Chengdu, 2014: 2361-2366.
[25] Da Silva L C P, Da Costa V F, Xu W. Preliminary results on improving the modal analysis technique for voltage stability assessment[C]//2000 Power Engineering Society Summer Meeting, Seattle, 2000: 1946-1950.
[26] Chai Runze, Zhang Baohui, Dou Jingming, et al.Unified power flow algorithm based on the NR method for hybrid AC/DC grids incorporating VSCs[J]. IEEE Transactions on Power Systems, 2016, 31(6): 4310-4318.