多直流馈入受端系统与直流联络线协调恢复的一体化建模与求解

doi:10.19595/j.cnki.1000-6753.tces.230479

摘要
图/表
参考文献
相关文章 (11)

全文: PDF (1055 KB)
输出: BibTeX | EndNote (RIS)

摘要

在多馈入系统发生大停电后,选择合适的时机接入直流联络线可以有效推进受端电网的恢复进程。与此同时,交直流之间及多个逆变站间的交互影响,为合理安排直流启动时机及运行出力带来了新的挑战。基于上述背景,该文提出一种能够同时协调关键机组、直流联络线与输电线路恢复的网架重构策略。首先,分析了多直流启动与运行对受端电网强度的要求,通过构建“n+1”网络实现了直流恢复安全约束的一体化线性建模;然后,为应对恢复过程中可能出现的突发状况,采用一种分时步的滚动窗口优化机制,建立了基于混合整数线性规划的源网协调恢复模型;接着,针对模型求解效率低的问题,提出了两种支路预筛选策略;最后,以修改的新英格兰10机39节点系统为例验证了所提方法的有效性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李少岩
	曹珂
	顾雪平
	王帅

关键词 ：源网协调恢复, “n+1”网络构建法, 序贯决策, 支路预筛选, 混合整数线性规划

Abstract：

The formation of large-scale multi-infeed HVDC electric power transmission has led to an increasingly complex power system structure, which in turn has increased the risk of safety accidents. As a part of the power system security defense system, it is of great significance to study the power grid restoration strategy that involves the participation of HVDC tie lines. After a blackout of multi-infeed system, in order to select the appropriate time to connect to the HVDC tie lines and arrange the active power output of each inverter station effectively, a multi-time-step network reconstruction model was proposed which can coordinate the restoration of the key units, HVDC tie lines, and the transmission lines simultaneously.
Firstly, the paper analyzed the key indicators that affect the safety and stability of the AC/DC system. It was found that the technical bottleneck lies in establishing a linear relationship between node impedance and restoration decision variables during the modeling of short circuit capacity (SCC) and multi-infeed short circuit ratio (MISCR) constraints. To address the above issue, an integrated linear modeling of HVDC restoration security constraints was implemented by constructing an "n+1" network. This approach avoids potential risks caused by HVDC participation in the restoration process while meeting the strength requirements of multiple HVDC startup and operation in the receiving-end power grid.
In order to deal with the unavailability of the predetermined solutions due to secondary power loss of equipment during the restoration process, a rolling window mechanism was adopted, which not only meets the requirements of computing speed, but also effectively responds to unexpected situations in the system and adjusts decision scheme in a timely manner. Then, based on the rolling window mechanism, a dynamic sequential decision optimization model for source-grid coordinated restoration was established, which is a mixed integer linear programming model with branch state as the decision variable. In addition, two branch pre-screening strategies for the restoration process were proposed to improve the solving efficiency of the model. Finally, the proposed method was verified using the modified IEEE 39-bus system. And the results showed that the method not only taps into the regulatory potential of the grid to promote HVDC power increase and utilizes the power support effect of the multiple HVDC system after a blackout, but also performs better in stability, convergence, and global optimality compared to intelligent algorithms.
However, it should be noted that the above research mainly focuses on the network topology of the receiving-end system and improving the system restoration method with HVDC participation, without considering the control strategy of HVDC itself in detail. Therefore, How to coordinate and cooperate between the HVDC control system and the restoration process of the AC power grid is worth further exploration.

Key words： Source-grid coordinated restoration "n+1" network construction method sequential decision branch pre-screening mixed integer linear programming

收稿日期: 2023-04-17

PACS:

TM732

基金资助:

国家自然科学基金（52107092）、河北省自然科学基金（E2019502195）和中央高校基本科研业务费专项资金（2021MS063）资助项目

通讯作者: 李少岩,男,1989年生,副教授,硕士生导师,研究方向为电力系统安全防御和恢复控制。E-mail：shaoyan.li@ncepu.edu.cn

作者简介: 曹珂,女,1998年生,硕士,研究方向为电力系统安全防御与恢复控制。E-mail：625911016@qq.com

引用本文:

李少岩, 曹珂, 顾雪平, 王帅. 多直流馈入受端系统与直流联络线协调恢复的一体化建模与求解[J]. 电工技术学报, 0, (): 8931-. Li Shaoyan, Cao Ke, Gu Xueping, Wang Shuai. Integrated Modeling and Solution for Coordinated Restoration of Multi-infeed Receiving-end Systems and HVDC Tie Lines. Transactions of China Electrotechnical Society, 0, (): 8931-.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.230479 https://dgjsxb.ces-transaction.com/CN/Y0/V/I/8931

[1] 顾雪平, 白岩松, 李少岩, 等. 考虑风电不确定性的电力系统恢复全过程两阶段鲁棒优化方法[J]. 电工技术学报, 2022, 37(21): 5462-5477.
Gu Xueping, Bai Yansong, Li Shaoyan, et al.Two stage robust optimization method for the whole-process power system restoration considering wind power uncertainty[J]. Transactions of China Electrotechnical Society, 2022, 37(21): 5462-5477.
[2] 易俊, 卜广全, 郭强, 等. 巴西“3·21”大停电事故分析及对中国电网的启示[J]. 电力系统自动化, 2019, 43(2): 1-6.
Yi Jun, Bu Guangquan, Guo Qiang, et al.Analysis on blackout in Brazilian power grid on March 21, 2018 and its enlightenment to power grid in China[J]. Automation of Electric Power Systems, 2019, 43(2): 1-6.
[3] 冯丽, 金黎明, 张同尊, 等. 考虑恢复路径充电时间的机组启动次序决策方法[J]. 中国电机工程学报, 2016, 36(18): 4904-4910, 5114.
Feng Li, Jin Liming, Zhang Tongzun, et al.A new method to determine non-blackstart units restoration sequence with consideration of charging time of restoration paths[J]. Proceedings of the CSEE, 2016, 36(18): 4904-4910, 5114.
[4] 廖诗武, 姚伟, 文劲宇, 等. 电力系统恢复后期网架重构和负荷恢复的两阶段优化方法[J]. 中国电机工程学报, 2016, 36(18): 4873-4882, 5111.
Liao Shiwu, Yao Wei, Wen Jinyu, et al.Two-stage optimization method for network and load recovery during power system restoration[J]. Proceedings of the CSEE, 2016, 36(18): 4873-4882, 5111.
[5] 顾雪平, 李少岩, 周光奇, 等. 计及特级负荷恢复的网架重构分时段全局优化方法[J]. 电工技术学报, 2017, 32(7): 138-149.
Gu Xueping, Li Shaoyan, Zhou Guangqi, et al.Global optimization by multi-time-stage coordination for network reconfiguration considering vital load restoration[J]. Transactions of China Electrotechnical Society, 2017, 32(7): 138-149.
[6] 顾雪平, 白岩松, 李少岩, 等. 电力系统黑启动恢复问题的研究评述[J]. 电工技术学报, 2022, 37(13): 3183-3200.
Gu Xueping, Bai Yansong, Li Shaoyan, et al.Research review of power system black-start restoration[J]. Transactions of China Electrotechnical Society, 2022, 37(13): 3183-3200.
[7] 周剑, 李建设, 苏寅生. 电网黑启动情况下高压直流输电系统启动条件分析[J]. 电力系统自动化, 2011, 35(3): 92-96.
Zhou Jian, Li Jianshe, Su Yinsheng.Analysis on start-up conditions of HVDC system in black-start[J]. Automation of Electric Power Systems, 2011, 35(3): 92-96.
[8] 李保宏, 刘天琪, 许韦华, 等. 直流参与受端弱交流系统黑启动的技术条件[J]. 电力自动化设备, 2016, 36(5): 23-29.
Li Baohong, Liu Tianqi, Xu Weihua, et al.Technical conditions of HVDC for involving in black-start of weak receiving AC system[J]. Electric Power Automation Equipment, 2016, 36(5): 23-29.
[9] 顾雪平, 杨超, 梁海平, 等. 异步联网受端交流系统恢复中支持LCC-HVDC启动的局部网络快速重构[J]. 中国电机工程学报, 2019, 39(4): 1060-1070.
Gu Xueping, Yang Chao, Liang Haiping, et al.Rapid reconfiguration of receiving-end AC local networks supporting LCC-HVDC startup for asynchronous networking power systems[J]. Proceedings of the CSEE, 2019, 39(4): 1060-1070.
[10] 刘昌盛, 谢云云, 周前, 等. 高压直流输电参与的电网恢复路径优化方法研究[J]. 中国电机工程学报, 2017, 37(9): 2579-2589.
Liu Changsheng, Xie Yunyun, Zhou Qian, et al.Optimization of restoration path for blackout grid with the aid of high-voltage direct current transmission[J]. Proceedings of the CSEE, 2017, 37(9): 2579-2589.
[11] 陈亮, 贾萌萌, 汪成根, 等. 利用直流输电的电力系统恢复多目标优化方法[J]. 电力自动化设备, 2017, 37(5): 191-197.
Chen Liang, Jia Mengmeng, Wang Chenggen, et al.Multi-objective optimization of power system restoration using DC power transmission[J]. Electric Power Automation Equipment, 2017, 37(5): 191-197.
[12] 顾雪平, 杨超, 梁海平, 等. 含常规高压直流输电的电力系统恢复路径优化[J]. 电网技术, 2019, 43(6): 2020-2032.
Gu Xueping, Yang Chao, Liang Haiping, et al.Path optimization of power system restoration with HVDC transmission[J]. Power System Technology, 2019, 43(6): 2020-2032.
[13] 杨超, 梁海平, 顾雪平, 等. 多直流馈入异步受端电网恢复的分区方法[J]. 电力系统自动化, 2019, 43(10): 162-170.
Yang Chao, Liang Haiping, Gu Xueping, et al.Partition method for restoration of asynchronous receiving end power grid with multi-infeed HVDC[J]. Automation of Electric Power Systems, 2019, 43(10): 162-170.
[14] 王洪涛, 蔺呈倩, 杨冬, 等. 多直流馈入系统功率调控与机组出力恢复协调优化[J]. 电力自动化设备, 2019, 39(9): 136-143.
Wang Hongtao, Lin Chengqian, Yang Dong, et al.Coordinated optimization of multi-infeed HVDC system power regulation and generator output restoration[J]. Electric Power Automation Equipment, 2019, 39(9): 136-143.
[15] 杨善栋. 多馈入直流系统参与恢复的电压安全评估和协调控制[D]. 济南: 山东大学, .
[16] 胡海周. 多直流系统参与网架重构的安全评估与优化策略研究[D]. 济南: 山东大学, .
[17] Liu Bianbian, Wang Hongtao, Ai Hongyu.Identification of the weak areas of simultaneous commutation failure for multi-infeed DC system during power system restoration[C]//2020 IEEE 3rd Student Conference on Electrical Machines and Systems (SCEMS), Jinan, China, 2021: 455-460.
[18] Ai Hongyu, Wang Hongtao.Evaluation method of static voltage stability in multi-infeed HVDC system during power system restoration[C]//2020 5th Asia Conference on Power and Electrical Engineering (ACPEE), Chengdu, China, 2020: 528-532.
[19] Lin Chengqian, Wang Hongtao.Optimization of generator starting scheme including multiple DC converter stations[C]//2018 IEEE International Conference on Energy Internet (ICEI), Beijing, China, 2018: 105-110.
[20] 臧二彬. 含直流落点受端系统网架重构优化研究[D]. 北京: 华北电力大学, 2019.
[21] 张程铭, 柳璐, 程浩忠, 等. 考虑频率安全的电力系统规划与运行优化研究综述与展望[J]. 电网技术, 2022, 46(1): 250-265.
Zhang Chengming, Liu Lu, Cheng Haozhong, et al.Review and prospects of planning and operation optimization for electrical power systems considering frequency security[J]. Power System Technology, 2022, 46(1): 250-265.
[22] 孙凯祺, 李可军, Sundaresh Lakshmi, 等. 基于直流互联的交流电网频率稳定控制研究[J]. 中国电机工程学报, 2020, 40(3): 723-731.
Sun Kaiqi, Li Kejun, Lakshmi S, et al.Frequency stability control research of AC grid based on HVDC transmission system[J]. Proceedings of the CSEE, 2020, 40(3): 723-731.
[23] 郭小江, 郭强, 马世英, 等. 直流孤岛送电系统的系统接入技术要求研究[J]. 中国电机工程学报, 2012, 32(34): 42-49, 8.
Guo Xiaojiang, Guo Qiang, Ma Shiying, et al.Research on system interconnection requirements of DC island sending systems[J]. Proceedings of the CSEE, 2012, 32(34): 42-49, 8.
[24] Adibi M M, Borkoski J N, Kafka R J, et al.Frequency response of prime movers during restoration[J]. IEEE Transactions on Power Systems, 1999, 14(2): 751-756.
[25] 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.
[26] 李少岩, 任乙沛, 顾雪平, 等. 基于短路电流约束显式线性建模的输电网结构优化[J]. 电工技术学报, 2020, 35(15): 3292-3302.
Li Shaoyan, Ren Yipei, Gu Xueping, et al.Optimization of transmission network structure based on explicit linear modeling of short circuit current constraints[J]. Transactions of China Electrotechnical Society, 2020, 35(15): 3292-3302.
[27] 李少岩, 曹珂, 顾雪平, 等. 基于伴随网络的受端电网多馈入短路比约束线性化建模[J]. 电力系统自动化, 2022, 46(15): 75-84.
Li Shaoyan, Cao Ke, Gu Xueping, et al.Linearized modeling of multi-infeed short circuit ratio constraints for receiving-end power grid based on accompanying network[J]. Automation of Electric Power Systems, 2022, 46(15): 75-84.
[28] Patsakis G, Rajan D, Aravena I, et al.Optimal black start allocation for power system restoration[J]. IEEE Transactions on Power Systems, 2018, 33(6): 6766-6776.
[29] 李少岩,赵汉广,顾雪平,等.考虑次生故障差异化影响下韧性主动提升的输电系统网架重构策略[J/OL].中国电机工程学报:1-16[2023-04-12]
Li Shaoyan, Zhao Hanguang, Gu Xueping, et al.A novel transmission network reconfiguration strategy considering active improvement of system resilience under the differential influence of contingencies [J/OL]. Chinese Journal of Electrical Engineering: 1-16 [2023-04-12]
[30] 宋坤隆, 谢云云, 殷明慧, 等. 应用网络流理论的停电系统恢复路径混合整数线性优化模型[J]. 电力系统自动化, 2017, 41(3): 25-32.
Song Kunlong, Xie Yunyun, Yin Minghui, et al.Mixed integer linear optimization model for path restoration of blackout system based on network flow theory[J]. Automation of Electric Power Systems, 2017, 41(3): 25-32.