Impedance Modeling and Stability Analysis of the IMAF-PLL-Based NPC Three-Level LCL Grid-Connected Inverter

被引：3
作者：
Luo, Wei [1 ]
Wei, Dafang [1 ]
Jiang, Jianguo [2 ]
机构：
[1] Univ Shanghai Sci & Technol, Dept Elect Engn, Shanghai 200093, Peoples R China
[2] Minist Educ, Key Lab Control Power Transmiss & Convers, Shanghai 200240, Peoples R China
来源：
IEEE ACCESS | 2020年 / 8卷
关键词：
Phase locked loops; Inverters; Power harmonic filters; Impedance; Power system stability; Stability criteria; Transfer functions; Grid-connected inverter; phase-locked loop; improved moving average filter; three-level; impedance stability; FED INDUCTION GENERATOR;
D O I：
10.1109/ACCESS.2020.3038879
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The phase-locked loop of grid-connected inverters affects their output impedance characteristics and stability. Based on the NPC, three-level LCL grid-connected inverter, this article first analyzes the frequency characteristics of the improved moving average filter phase-locked loop (IMAF-PLL). Then, analyzing the influence of the neutral point control on the inverter impedance modeling, the harmonic linearization impedance modeling method combined with the symmetrical component method is used to establish a positive and negative sequence impedance model of the NPC three-level LCL grid-connected inverter. Furthermore, the frequency characteristics of the IMAF-PLL and the impedance model of the NPC three-level LCL grid-connected inverter are verified by simulations. Finally, the impedance-based analysis method is used to study the stability of the grid-connected system under different grid impedance conditions when using different phase-locked loops, and the theoretical analysis was validated experimentally.
引用
收藏
页码：217615 / 217627
页数：13
相关论文
共 29 条
[1]   Overview of control and grid synchronization for distributed power generation systems [J].
Blaabjerg, Frede ;
Teodorescu, Remus ;
Liserre, Marco ;
Timbus, Adrian V. .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2006, 53 (05) :1398-1409
[2]  
Boyra M., 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications, P1
[3]  
Chi Yongning, 2019, 2019 IEEE Sustainable Power and Energy Conference (iSPEC). Proceedings, P72, DOI 10.1109/iSPEC48194.2019.8974936
[4]   Tuning of Phase-Locked Loops for Power Converters Under Distorted Utility Conditions [J].
Freijedo, Francisco D. ;
Doval-Gandoy, Jesus ;
Lopez, Oscar ;
Acha, Enrique .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2009, 45 (06) :2039-2047
[5]   Three-Phase PLLs: A Review of Recent Advances [J].
Golestan, Saeed ;
Guerrero, Josep M. ;
Vasquez, Juan C. .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2017, 32 (03) :1894-1907
[6]   Moving Average Filter Based Phase-Locked Loops: Performance Analysis and Design Guidelines [J].
Golestan, Saeed ;
Ramezani, Malek ;
Guerrero, Josep M. ;
Freijedo, Francisco D. ;
Monfared, Mohammad .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2014, 29 (06) :2750-2763
[7]   Dynamic Performance Enhancement of Single-Phase and Two-Phase Enhanced Phase-Locked Loops by Using In-Loop Multiple Delayed Signal Cancellation Filters [J].
Gude, Srinivas ;
Chu, Chia-Chi .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2020, 56 (01) :740-751
[8]   Modeling and Stability Analysis of LCL-Type Grid-Connected Inverters: A Comprehensive Overview [J].
Han, Yang ;
Yang, Mengling ;
Li, Hong ;
Yang, Ping ;
Xu, Lin ;
Alves Coelho, Ernane Antonio ;
Guerrero, Josep M. .
IEEE ACCESS, 2019, 7 :114975-115001
[9]   Stability Analysis for the Grid-Connected Single-Phase Asymmetrical Cascaded Multilevel Inverter With SRF-PI Current Control Under Weak Grid Conditions [J].
Han, Yang ;
Chen, Hao ;
Li, Zipeng ;
Yang, Ping ;
Xu, Lin ;
Guerrero, Josep M. .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2019, 34 (03) :2052-2069
[10]   Enhanced Grid-Connected Phase-Locked Loop Based on a Moving Average Filter [J].
Liu, Cong ;
Jiang, Jiayan ;
Jiang, Jianguo ;
Zhou, Zhongzheng .
IEEE ACCESS, 2020, 8 :5308-5315
123