Analysis and Damping Control of Small-Signa Oscillations for VSC Connected to Weak AC Grid During LVRT

被引:43
作者
Wang, Xuewei [1 ]
Yao, Jun [1 ]
Pei, Jinxin [1 ]
Sun, Peng [1 ]
Zhang, Hailin [1 ]
Liu, Ruikuo [1 ]
机构
[1] Chongqing Univ, Sch Elect Engn, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
关键词
Voltage source converter (VSC); weak ac grid; phase locked loop (PLL); interaction; stability; damping control strategy; CONVERTERS; STABILITY; SYSTEMS; IMPACT; FAULTS;
D O I
10.1109/TEC.2019.2915680
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The instability issues of grid-connected voltage source converters (VSC) may easily occur during low voltage ride-through (LVRT), especially when connected to a weak ac grid. In this study, a small-signal model of the grid-connected VSC system was developed to deal with the stability problems during deep voltage sags. Based on the model, the interaction between the phase-locked loop (PLL) and current control has been illustrated. In addition, the eigenvalue and modal analysis method was employed to investigate the influencing factors of the VSC system stability, which include the bandwidths of the PLL and current control loop, grid strength, and voltage sags. Furthermore, on the basis of the interaction between PLL and current control loop, a novel additional damping controller that is placed in the active current control loop was proposed and designed. Finally, experiments were conducted to verify the theoretical analysis and proposed control strategy for enhancing VSC system stability during LVRT with a high impedance grid connection.
引用
收藏
页码:1667 / 1676
页数:10
相关论文
共 50 条
[41]   Parameter Design Oriented Analysis of the Current Control Stability of the Weak-Grid-Tied VSC [J].
Wu, Guanglu ;
Sun, Huadong ;
Zhang, Xi ;
Egea-Alvarez, Agusti ;
Zhao, Bing ;
Xu, Shiyun ;
Wang, Shanshan ;
Zhou, Xiaoxin .
IEEE TRANSACTIONS ON POWER DELIVERY, 2021, 36 (03) :1458-1470
[42]   Full-Scale Modeling, Control, and Analysis of Grid-Connected Wind Turbine Induction Generators With Back-to-Back AC/DC/AC Converters [J].
Konstantopoulos, George C. ;
Alexandridis, Antonio T. .
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2014, 2 (04) :739-748
[43]   Virtual Capacitance Control for Improving Dynamic Stability of the DFIG-Based Wind Turbines During a Symmetrical Fault in a Weak AC Grid [J].
Sun, Peng ;
Yao, Jun ;
Liu, Ruikuo ;
Pei, Jinxin ;
Zhang, Hailin ;
Liu, Yuan .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2021, 68 (01) :333-346
[44]   A resonant damping control and analysis for LCL-type grid-connected inverter [J].
Khan, Danish ;
Hu, Pengfei ;
Habib, Salman ;
Waseem, Muhammad ;
Lin, Zhenzhi ;
Ahmed, Emad M. .
ENERGY REPORTS, 2022, 8 :911-928
[45]   Small-signal instability and supplementary coordinated damping-control of LCC-HVDC system with STATCOM under weak AC grid conditions [J].
Guo, Chunyi ;
Jiang, Wen ;
Zhao, Chengyong .
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 2019, 104 :246-254
[46]   VSC Control of Grid connected PV For Maintaining Power Supply During Open Phase Condition in Distribution Network [J].
Prakash, Surya ;
Mishra, Sukumar .
2018 IEEMA ENGINEER INFINITE CONFERENCE (ETECHNXT), 2018,
[47]   Phase-Locked Loop Small-Signal Disturbance Compensation Control for Three-Phase LCL-Type Grid-Connected Converter under Weak Grid [J].
Zhu, Donghai ;
Zhou, Shiying ;
Zou, Xudong ;
Kang, Yong ;
Zou, Kaifeng .
2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), 2018, :3108-3112
[48]   Small-Signal Disturbance Compensation Control for <italic>LCL</italic>-Type Grid-Connected Converter in Weak Grid [J].
Zhu, Donghai ;
Zhou, Shiying ;
Zou, Xudong ;
Kang, Yong ;
Zou, Kaifeng .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2020, 56 (03) :2852-2861
[49]   Reduced-Order Modeling and Transient Stability Analysis of Grid-Connected VSC in DC-Link Voltage Control Timescale [J].
Ma, Yumei ;
Zhu, Donghai ;
Hu, Jiabing ;
Liu, Dan ;
Ji, Xiaotong ;
Zou, Xudong ;
Kang, Yong .
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2024, 12 (03) :2981-2993
[50]   Frequency-coupled impedance model-based sub-synchronous interaction analysis for direct-drive wind turbines connected to a weak AC grid [J].
Liu, Wei ;
Xie, Xiaorong ;
Shair, Jan ;
Liu, Huakun ;
He, Jingbo .
IET RENEWABLE POWER GENERATION, 2019, 13 (16) :2966-2976