基于五端MMC-MTDC系统的协调启动和故障恢复启动控制策略

张倩; 立梓辰; 赵博文; 张延迟

doi:10.16513/j.2096-2185.DE.2207210

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分布式能源 ›› 2022, Vol. 7 ›› Issue (2) : 70-80. DOI: 10.16513/j.2096-2185.DE.2207210

应用技术

基于五端MMC-MTDC系统的协调启动和故障恢复启动控制策略

张倩 ¹ ,
立梓辰 ² ,
赵博文 ³ ,
张延迟 ⁴

作者信息 +

Coordinated Startup and Fault Recovery Starts Control Policy Based on Five-Terminal MMC-MTDC System

Author information +

文章历史 +

摘要

为解决多端直流输电系统(multi-terminal direct current, MTDC)存在能量冲击，影响系统的正常启动的问题，提出一种智能协调启动控制策略。变电站采用模块化多电平换流器(modular multilevel converter, MMC)，在MMC的预充电的过程中存在预充电“先发优势”的问题，为此搭建了五端MMC-MTDC系统的预充电与协调启动模型，针对几种典型的MMC-MTDC系统故障进行分析，提出智能故障恢复快速启动控制策略，仿真验证结果表明：所提出的控制策略能够有效降低启动时的暂态能量冲击，现场测试结果与预期结果一致。

Abstract

An intelligent coordinated startup control strategy is proposed to solve the problem of energy shock affecting the normal startup of multi-terminal direct current (MTDC) transmission system. The substation adopts modular multilevel converter (MMC), in the process of pre-charging MMC, there exists the problem of pre-charging "first-mover advantage" . For this reason, the pre-charging and coordinated startup model of five-terminal MMC-MTDC system was built. Based on the analysis of several typical MMC-MTDC system failures, the intelligent fault recovery and quick startup control strategy was proposed. The simulation results show that: The proposed control strategy can effectively reduce the transient energy impact during startup, and the field test results are consistent with the expected results.

导出引用

张倩, 立梓辰, 赵博文, 等. 基于五端MMC-MTDC系统的协调启动和故障恢复启动控制策略[J]. 分布式能源, 2022, 7(2): 70-80 https://doi.org/10.16513/j.2096-2185.DE.2207210.

ZHANG Qian, LI Zichen, ZHAO Bowen, et al. Coordinated Startup and Fault Recovery Starts Control Policy Based on Five-Terminal MMC-MTDC System[J]. Distributed Energy, 2022, 7(2): 70-80 https://doi.org/10.16513/j.2096-2185.DE.2207210.

中图分类号： TK01; TM721

参考文献

列表( 原文顺序 | 文献年度倒序 | 文中引用次数倒序 ) 可视化分析

[1]	薛士敏，范勃旸，刘冲，等. 双极柔性直流输电系统换流站交流三相接地故障分析及保护[J]. 高电压技术，2019, 45(1): 21-30. XUE Shimin, FAN Boyang, LIU Chong, et al. Fault analysis and protection scheme for converter AC three-phase grounding of bipolar HVDC systems[J]. High Voltage Technology, 2019, 45(1): 21-30. 本文引用 [1]

[2]	LI C, LIN L, HE Z, et al. Optimized design of DC-side smoothing reactors in meshed multi-terminal HVDC systems based on symmetrical bipolar modular multilevel converter[J]. The Journal of Engineering, 2017, 2017(13): 1225-1231. 本文引用 [1]

[3]	GHAZANFARI A, MOHAMED A R I. A hierarchical permutation cyclic coding strategy for sensorless capacitor voltage balancing in modular multilevel converters[J]. IEEE Journal of Emerging & Selected Topics in Power Electronics, 2016, 4(2): 576-588. 本文引用 [1]

[4]	WANG J, LIANG J, WANG C, et al. Circulating current suppression for MMC-HVDC under unbalanced grid conditions[C]//Industry Applications Society Meeting. IEEE, 2016: 1-9. 本文引用 [1]

[5]	ZHANG Lei, ZOU Yuntao, YU Jicheng, et al. Modeling, control, and protection of modular multilevel converter-based multi-terminal HVDC systems: A review[J]. CSEE Journal of Power and Energy Systems, 2017, 3(4): 340-352. 本文引用 [2]

[6]	WANG Y, YUAN Z, FU J. A novel strategy on smooth connection of an offline MMC station into MTDC systems[J]. IEEE Transactions on Power Delivery, 2016, 31(2): 568-574. 本文引用 [2]

[7]	朱金涛，辛业春. 柔性高压直流输电仿真技术研究方法综述[J]. 智慧电力，2021, 49(3): 1-11. ZHU Jintao, XIN Yechun. Review of research on simulation methods of VSC-HVDC transmission system[J]. Smart Power, 2021, 49(3): 1-11. 本文引用 [2]

[8]	WU W, WU X, WANG L, et al. Active damping control of multi-port DC power flow controller for MMC-MTDC with unbalanced AC grid[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 9(6): 7395-7407. 本文引用 [2]

[9]	张怿宁，方苏，罗国敏，等. 基于行波衰减理论的多端流网络故障定位[J]. 科学技术与工程，2020, 20(32): 13240-13248. ZHANG Yining, FANG Su, LUO Guomin, et al. Fault location of multi-terminal DC network based on traveling wave attenuation theory[J]. Science Technology and Engineering, 2020, 20(32): 13240-13248. 本文引用 [1]

[10]	CHEN Yongyang, PAN Shangzhi, HUANG Meng, et al. MMC-MTDC transmission system with partially hybrid branches[J]. CES Transactions on Electrical Machines and Systems, 2021, 5(2): 124-132. 本文引用 [1]

[11]	徐政. 柔性直流输电系统[M]. 北京：机械工业出版社，2016. 本文引用 [1]

[12]	FU Q, DU W, WANG H F, et al. Analysis of small-signal power oscillations in MTDC power transmission system[J]. IEEE Transactions on Power Systems, 2020, PP(99): 1-1. 本文引用 [1]

[13]	HU Yang, DAI Yong, WU Junxing, et al. Research on control method of multi-terminal flexible DC transmission system based on voltage droop control[J]. IOP Conference Series Materials Science and Engineering, 2020, 782(3): 032064. 本文引用 [1]

[14]	LI H, WANG K, LAI X. Redistribution of DC power in multi-terminal flexible DC transmission systems[C]//Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019). 2019. 本文引用 [1]

[15]	SAYED Sawsan, MASSOUD Ahmed. Optimal power flow in multi-terminal HVDC networks with embedded high-power DC-DC converters for voltage matching and flexible DC transmission[J]. IET Generation, Transmission & Distribution, 2020, 14(18): 3866-3876. 本文引用 [1]

[16]	ZHANG Y, CONG W, LI G, et al. Single-ended MMC-MTDC line protection based on dual-frequency amplitude ratio of traveling wave[J]. Electric Power Systems Research, 2020, 189(3): 106808. 本文引用 [1]

[17]	李峰，张英敏，刘天琪，等. 混合级联型多落点直流输电系统交流系统故障协调控制策略[J]. 智慧电力，2021, 49(7): 102-108. LI Feng, ZHANG Yingmin, LIU Tianqi, et al. Fault coordination control strategy of AC system in hybrid cascaded multi-terminal HVDC system[J]. Smart Power, 2021, 49(7): 102-108. 本文引用 [1]

[18]	严治勇，杨学广，陶敏，等. 混合直流输电系统电压裕度控制策略研究[J]. 广东电力，2020, 33(7): 49-56. YAN Zhiyong, YANG Xueguang, TAO Min, et al. Research on voltage margin control strategy of hybrid DC transmission system[J]. Guangdong Electric Power, 2020, 33(7): 49-56. 本文引用 [1]

[19]	周涛，陈中，戴中坚，等. 含VSC-MTDC的交直流系统潮流算法[J]. 中国电机工程学报，2019, 39(11): 3140-3149. ZHOU Tao, CHEN Zhong, DAI Zhongjian, et al. An AC/DC system power flow algorithm with VSC-MTDC[J]. Proceedings of the CSEE, 2019, 39(11): 3140-3149. 本文引用 [2]

[20]	付强，杜文娟，王海风，等. 多端柔性直流输电中换流站的同步切换控制策略[J]. 电网技术，2018, 42(4): 1241-1251. FU Qiang, DU Wenjuan, WANG Haifeng, et al. Synchronous switching control strategy for VSC station in MTDC network[J]. Power System Technology, 2018, 42(4): 1241-1251. 本文引用 [2]

[21]	毕天姝，王帅，贾科，等. 基于短时能量的多端柔性直流单极接地故障线路识别方法[J]. 电网技术，2016, 40(3): 689-695. BI Tianshu, WANG Shuai, JIA Ke, et al. Short-term energy based approach for monopolar grounding line identification in MMC-MTDC system[J]. Power System Technology, 2016, 40(3): 689-695. 本文引用 [2]

[22]	MING Z, XU Y, WANG Z, et al. Improved droop control strategy for stability enhancement of VSC-MTDC systems with DC reactors[J]. The Journal of Engineering, 2017, 2017(14): 2598-2604. 本文引用 [2]

[23]

苟

鑫

，卢

继平

，刘

加林

，等. 一种基于子模块投入优先级的模块化多电平换流器电容电压均衡控制策略[J]. 中国电机工程学报，2019, 39(24): 7299-7310, 7503.

GOU

Xin

, LU

Jiping

, LIU

Jialin

, et al. A capacitor voltage balancing control method for modular multilevel converter based on insertion priority of the sub-modules[J]. Proceedings of the CSEE, 2019, 39 (24): 7299-7310, 7503.

本文引用 [1]

[24]	ZHANG S, ZOU G, HUANG Q, et al. Single-ended line protection for MMC-MTDC grids[J]. Generation, Transmission & Distribution, IET, 2019, 13(19): 4331-4338. 本文引用 [1]

[25]	FREYTES J, AKKARI S, RAULT P, et al. Dynamic analysis of MMC-based MTDC grids: Use of MMC energy to improve voltage behavior[J]. IEEE Transactions on Power Delivery, 2019, 34(1): 137-148. 本文引用 [1]

[26]	张晓，吴凡，周康，等. 基于降低开关频率的MMC优化排序算法[J]. 电测与仪表，2019, 56(20): 36-41. ZHANG Xiao, WU Fan, ZHOU Kang, et al. Optimized sorting algorithm of capacitor voltage for MMC based on reduced switching-frequency modulation[J]. Electrical Measurement & Instrumentation, 2019, 56 (20): 36-41. 本文引用 [1]

[27]	ZHANG Mingguang, LI Jiawen. Single pole ground fault protection strategy for MMC-MTDC based on voltage margin control[C]//Proceedings of 2018 2nd International Conference on Electrical Engineering and Automation(ICEEA2018), 2018: 50-55. 本文引用 [1]

[28]	JIANG M, GUO Q, SUN H, et al. Study on the dynamic reactive power characteristics of MMC-MTDC for wind farm integration[J]. The Journal of Engineering, 2017, 2017(13): 691-695. 本文引用 [1]

[29]	杨晓峰，郑琼林，薛尧，等. 模块化多电平换流器的拓扑和工业应用综述[J]. 电网技术，2016, 40(1): 1-10. YANG Xiaofeng, ZHENG Qionglin, XUE Yao, et al. Review on topology and industry applications of modular multilevel converter[J]. Power System Technology, 2016, 40(1): 1-10. 本文引用 [1]

[30]	WANG Y, YUAN Z, FU J, et al. A feasible coordination protection strategy for MMC-MTDC systems under DC faults[J]. International Journal of Electrical Power & Energy Systems, 2017, 90:103-111. 本文引用 [1]