- 中国高校优秀科技期刊
- 全国中文核心期刊
- 中国科技核心期刊
- 中国知网收录期刊
- 荷兰Scopus数据库收录
- 日本JST数据库收录
| Citation: |
YAN Jun, HU Yunpeng, LIU Jianjun, et al. Delay Compensation Strategy Incorporating Parameter Identification and Newton Interpolation for Grid-connected Inverter[J]. Modern Electric Power. DOI: 10.19725/j.cnki.1007-2322.2023.0135
|
With the development of "double high" in the power system, the proportion of renewable energy connected to the grid through the grid-connected inverter is increasing. However, the control delay introduced by the grid-connected inverter will change the impedance characteristics of the grid-connected inverter, causing resonance risk in the grid-connected system and threatening the security of the grid. The internal control delay parameters of the grid-connected inverter at the project site are undisclosed due to confidentiality. To address this issue, a delay compensation strategy is proposed for grid-connected inverter, which combines parameter identification and Newton interpolation. Firstly, the Loewner matrix is utilized to improve the vector matching, and an impedance transfer function of the grid-connected inverter is proposed to realize the correct identification of the control delay parameters of the grid-connected inverter. A compensation delay method based on Newton interpolation is given on this basis, which aims to reshape the impedance of the inverter by compensating the delay time required in the control system, so as to suppress the system resonance. Finally, the correctness and effectiveness of the proposed method are verified through simulation.
| [1] |
周孝信, 陈树勇, 鲁宗相, 等. 能源转型中我国新一代电力系统的技术特征[J]. 中国电机工程学报, 2018, 38(7): 1893−1904.
ZHOU Xiaoxin, CHEN Shuyong, LU Zongxiang, et al. Technology features of the new generation power system in China[J]. Proceedings of the CSEE, 2018, 38(7): 1893−1904(in Chinese).
|
| [2] |
WANG Xiongfei, BLAABJERG F. Harmonic stability in power Electronic-based power systems: concept, modeling, and analysis[J]. IEEE Transactions on Power Electronics, 2020, 10(3): 2858−2870.
|
| [3] |
谢小荣, 贺静波, 毛航银, 等. “双高”电力系统稳定性的新问题及分类探讨[J]. 中国电机工程学报, 2021, 41(2): 461−475.
XIE Xiaorong, HE Jingbo, MAO Hangyin, et al. New issues and classification of power system stability with high shares of renewables and power electronics[J]. Proceedings of the CSEE, 2021, 41(2): 461−475(in Chinese).
|
| [4] |
陈新, 王赟程, 龚春英, 等. 采用阻抗分析方法的并网逆变器稳定性研究综述[J]. 中国电机工程学报, 2018, 38(07): 2082−2094+2223.
CHEN Xin, WANG Yuncheng, GONG Chunying, et al. Overview of stability research for grid-connected inverters based on impedance analysis method[J]. Proceedings of the CSEE, 2018, 38(07): 2082−2094+2223(in Chinese).
|
| [5] |
WANG Chuyang, XIAO Lan, ZHENG Xinxin, et al. Analysis, measurement, and compensation of the system time delay in a three-phase voltage source rectifier[J]. IEEE Transactions on Power Electronics, 2016, 31(8): 6031−6043. doi: 10.1109/TPEL.2015.2498279
|
| [6] |
华铤, 林桦, 肖建杰, 等. L型并网逆变器不同分析方法的比较研究[J]. 电力电子技术, 2020, 54(03): 20−23.
HUA Ling, LIN Hua, XIAO Jianjie, et al. Comparative study on different analysis methods of L-type grid connected inverter[J]. Power Electronics Technology, 2020, 54(03): 20−23(in Chinese).
|
| [7] |
朱坤龙, 孙鹏菊, 王林, 等. 弱电网下 LCL 型并网逆变器的高鲁棒性加权平均电流控制策略[J]. 中国电机工程学报, 2020, 40(11): 3592−3602.
ZHU Kunlong, SUN Pengju, WANG Lin, et al. High robustness weighted average current control for LCL-type grid connected inverter in a weak grid[J]. Proceedings of the CSEE, 2020, 40(11): 3592−3602(in Chinese).
|
| [8] |
屠一鸣, 刘进军, 刘增, 等. 基于阻抗的数字延时对单电流环控制型并网逆变器稳定性影响的分析[J]. 电源学报, 2020, 18(02): 63−72.
TU Yiming, LIU Jinjun, LIU Zeng, et al. Analysis of influence of digital delay based on impedance on stability of single current loop controlled grid connected inverter[J]. Journal of Power Supply, 2020, 18(02): 63−72(in Chinese).
|
| [9] |
PAN Donghua, RUAN Xinbo, BAO Chenlei. Capacitor-current-feedback active damping with reduced computation delay for improving robustness of LCL-type grid-connected inverter[J]. IEEE Transactions on Power Electronics, 2014, 29(7): 3414−3427. doi: 10.1109/TPEL.2013.2279206
|
| [10] |
方天治, 黄淳, 陈乃铭, 等. 一种提高弱电网下LCL型并网逆变器鲁棒性的相位超前补偿策略[J]. 电工技术学报, 2018, 33(20): 4813−4822.
FANG Tianzhi, HUANG Chun, CHEN Naiming, et al. A Phase-lead compensation strategy on enhancing robustness of LCL-type grid-tied inverters under weak grid conditions[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4813−4822(in Chinese).
|
| [11] |
贺诗明, 熊健. 基于牛顿插值的LCL型并网逆变器机侧电流反馈延时补偿策略[J]. 电网技术, 2020, 44(12): 4766−4772.
HE Shiming, XIONG Jian. Time delay compensation based on newton interpolation for inverter-side current feedback of LCL-type grid-tied inverter[J]. Power System Technology, 2020, 44(12): 4766−4772(in Chinese).
|
| [12] |
刘淇玉, 李永刚, 王月, 等. 多并网逆变器系统灰箱阻抗辨识与阻抗聚合分析方法[J]. 电力自动化设备, 2022, 42(11): 92−98+105.
LIU Qiyu, LI Yonggang, WANG Yue, et al. Gray box impedance identification and impedance polymerization analysis method for multi-grid-connected inverter system[J]. Electric Power Automation Equipment, 2022, 42(11): 92−98+105.(in Chinese).
|
| [13] |
LIY, LIU Q, WU B, et al. Impedance transfer functions fitting methods of grid-connected inverters: comparison and application[C]//2022 International Conference on Power Energy Systems and Applications(ICoPESA). Singapore: IEEE, 2022: 331-336.
|
| [14] |
BAKHSHIZADEHM K, YOON C, HJERRILD J, et al. The application of vector fitting to eigenvalue-based harmonic stability analysis[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017, 5(4): 1487−1498. doi: 10.1109/JESTPE.2017.2727503
|
| [15] |
黄刘勇,吴化璋,张高音. Bézout,Hankel,Loewner,Toeplitz和Toeplitz-Loewner矩阵的研究(英文)[J]. 浙江大学学报(理学版), 2015, 42(4): 379−384.
HUANG Liuyong, WU Huazhang, ZHANG Gaoyin . Macromodeling of distributed networks from frequency-domain data using the loewner matrix approach[J]. IEEE Transactions on Microwave Theory and Techniques, 2015, 42(4): 379−384.(in Chinese).
|
| [16] |
李建文, 李戎, 吴滨源, 等. LCL型并网逆变器大小信号模型比较与分析[J]. 电机与控制学报, 2021, 25(05): 60−70.
LI Jianwen, LI Rong, WU Binyuan, et al. Comparison and analysis of large and small signal models of LCL grid connected inverter[J]. Journal of Electrical Machinery and Control, 2021, 25(05): 60−70(in Chinese).
|
| [17] |
ZHOU W, Torres-Olguin R E, WANG Y, et al. A gray-box hierarchical oscillatory instability source identification method of multiple-inverter-fed power systems[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021, 9(3): 3095−3113. doi: 10.1109/JESTPE.2020.2992225
|
| [18] |
LEFTERIU S, ANTOULAS A C. A new approach to modeling multiport systems from frequency-domain data[J]. IEEE Trans Comput-Design Integr Circuits Syst, 2010, 29,(1): 14−27. doi: 10.1109/TCAD.2009.2034500
|
| [19] |
KABIR M, KHAZAKA R. Macromodeling of distributed networks from frequency-domain data using the loewner matrix approach[J]. IEEE Transactions on Microwave Theory and Techniques, 2012, 60(12): 3927−3938. doi: 10.1109/TMTT.2012.2222915
|
| [20] |
GUSTAVSEN B. Improving the pole relocating properties of vector fitting[J]. IEEE Transactions on Power Delivery, 2006, 21(3): 1587−1592. doi: 10.1109/TPWRD.2005.860281
|
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: