Flexible control strategy for HVDC transmission system adapted to intermittent new energy delivery
2021-11-23
【论文推荐】国网山东电科院 李晨昊等：适用于间歇性新能源功率送出的高压直流输电系统灵活控制策略
文章导读
间歇性新能源功率传输需要高压直流系统具备更灵活的调节能力。基于直流系统换流器稳态模型，为实现功率的调节，换流阀的控制角约束被适当放宽，提出一种在给定换流变变比条件下的直流控制策略。换流变初始变比针对该策略进行了优化。该策略对控制角、无功补偿量及换相失败的影响均进行了分析。新方法运行于较大的控制角，增加了无功损耗但有利于抑制换相失败。CIGRE标准测试系统验证了本文方法的正确性和有效性。
Flexible control strategy for HVDC transmission system adapted to intermittent new energy delivery
适用于间歇性新能源功率送出的高压直流输电系统灵活控制策略
Chenhao Li1, Kuan Li1, Changhui Ma1, Pengfei Zhang2,4, Qi Tao3, Yingtao Sun3, Xin Wang1
(1.State Grid Shandong Electric Power Research Institute, Jinan, P.R. China 2.State Grid International Development Limited, Beijing, P.R. China 3.State Grid Jinan Power Supply Company, Jinan, P.R. ChinaScan for more details 4.Independent Power Transmission Operator S.A., 89 Dyrrachiou Str.&Kifisou 10443, Athens, Greece)
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Abstract
Keywords
Tap changer, DC power, Firing angle, Reactive power compensation, Extinction angle, Commutation failure.
Fig.1 Traditional control strategy of DC power
Fig.2Control strategy of DC power under fixed-converter transformer tap changer position
Fig.3Diagram of DC dynamic controller under fixed converter transformer tap changer position
Fig.4Control angle of converter under different DC power orders
Fig.5Dynamic simulation at maximum angle
Fig.6Reactive power consumption of converter under different DC power orders
Fig.7 Extinction angle–time curve under single-phase ground fault
Fig.8Comparison of commutation failure critical transition resistance of two control strategies under different DC powers
本文引文信息
Li C, Li K, Ma C, Zhang P, Tao Q, Sun Y, Wang X (2021) Flexible control strategy for HVDC transmission system adapted to intermittent new energy delivery. Global Energy Interconnection, 4(4): 425-433
李晨昊，李宽，麻常辉，张鹏飞，陶琪，孙英涛，王昕 (2021) 适用于间歇性新能源功率送出的高压直流输电系统灵活控制策略. 全球能源互联网（英文），4(4): 425-433
Biographies
Chenhao Li
Chenhao Li received his bachelor’s and Ph.D. degrees from Southeast University, Nanjing in 2013 and 2019, respectively. He is working at the State Grid Shandong Electric Power Research Institute, Jinan. His research interests include power system stability analysis and control/protection of HVDC systems.
Kuan Li
Kuan Li received PhD degree at Sichuan University, Chengdu, 2015. He is working in State Grid Shandong Electric Power Research Institute, Jinan. His research interests include power system stability analysis and control/ protection of HVDC.
Changhui Ma
Changhui Ma received his master’s degree from Shandong University in 2003 and Ph.D. degree from Zhejiang University in 2006. He is working at the State Grid Shandong Electric Power Research Institute, Jinan. His research interests include power system planning and assessment.
Pengfei Zhang
Pengfei Zhang received his bachelor’s degree from Shandong University of Technology in 1999 and his Ph.D. degree from Shandong University in 2004. He is working at the State Grid International Development CO., LTD, Beijing. His research interests include power system analysis and planning.
Qi Tao
Qi Tao received her bachelor’s degree from Southeast University, Nanjing in 2013 and her Ph.D. degree from Zhejiang University, Hangzhou in 2020. She is working at the State Grid Jinan Power Supply Company, Jinan. Her research interests include stability analysis and control of AC/DC hybrid power systems.
Yingtao Sun
Yingtao Sun received his B.S. degree from Shandong University of Technology in 1999 and his master’s degree from Shandong University in 2002. He is working at the State Grid Jinan Power Supply Company, Jinan. His research interests include condition-based maintenance of power systems.
Xin Wang
Xin Wang received his master’s degree from Auckland University, Auckland in 2004. He is working at the State Grid Shandong Electric Power Research Institute, Jinan. His research interests include power system protection.
编辑：王彦博
审核：王 伟
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