基于广义奈奎斯特判据的新能源多场站系统小信号稳定薄弱并网单元辨识
作者:
作者单位:

(1. 国网江西省电力有限公司电力科学研究院,江西 南昌 330096;2.西南交通大学电气工程学院,四川 成都 610031;3.国网江西省电力有限公司,江西 南昌 330077;4.国家电投集团江西电力有限公司新能源发电分公司,江西 南昌 330038;5.华能江西清洁能源有限责任公司,江西 南昌 330038;6.江西省新能源与储能安全运行控制工程研究中心,江西 南昌 330096)

通讯作者:

斯琪(1999—),女,硕士研究生,主要从事新能源并网稳定性分析等方面的研究;E?mail:s2018112358@my.swjtu.edu.cn

中图分类号:

TM712

基金项目:

国网江西省电力有限公司科技项目(521820220006)


Identification of grid-connected units with the weakest small‑signal stability in multiple renewable energy stations based on generalized Nyquist criterion
Author:
Affiliation:

(1.Electric Power Research Institute, State Grid Jiangxi Electric Power Co., Ltd., Nanchang 330096, China; 2. School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China; 3.State Grid Jiangxi Electric Power Co., Ltd., Nanchang 330077, China; 4.New Energy Power Generation Branch, State Power Investment Group Jiangxi Electric Power Co., Ltd., Nanchang 330038, China; 5.Huaneng Jiangxi Clean Energy Co., Ltd., Nanchang 330038, China; 6.Jiangxi New Energy and Storage Safety Operation Control Engineering Research Center, Nanchang 330096, China)

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    摘要:

    大量新能源并网变流器接入电网极易引发小信号失稳,严重威胁系统的安全与稳定。现有的阻抗法小信号稳定性分析基于多机等效机制,仅能给出稳定性的影响因素分析,无法识别关键的稳定薄弱并网单元。该文提出一种基于广义奈奎斯特判据(generalized Nyquist criterion, GNC)的新能源多场站系统小信号稳定薄弱并网单元辨识方法。先基于GNC的稳定性分析思路,将多个不同控制参数的新能源场站解耦成多组单场站子系统;再构建每个子系统的稳定判据,分析各子系统的小信号稳定性;最后,依据子系统的小信号稳定性,找出稳定性最薄弱的子系统。研究结果表明,相较于现有方法,该方法能更准确、快速地识别小信号稳定薄弱并网单元,为系统稳定性的提升提供针对性的指导建议。

    Abstract:

    The integration of a large number of renewable energy grid-connected converters into the power grid can easily trigger small-signal instability, posing a serious threat to the safety and stability of the system. The existing small-signal stability analysis using the impedance method, based on a multi-machine equivalent mechanism, can only provide an analysis of the factors influencing stability and cannot identify the key weak grid-connected units that affect stability. This paper proposes a method for identifying small-signal stability weak grid-connected units in a renewable energy multi-site system based on the generalized Nyquist criterion (GNC). Firstly, based on the stability analysis approach of GNC, multiple renewable energy sites with different control parameters are decoupled into multiple single-site subsystems. Then, a stability criterion is constructed for each subsystem to analyze the small-signal stability of each subsystem. Finally, the subsystem with the weakest stability is identified based on the small-signal stability of each subsystem. The research results show that, compared with existing methods, this method can more accurately and quickly identify small-signal stability weak grid-connected units, providing targeted guidance and suggestions for improving system stability

    参考文献
    [1] 马宁宁,谢小荣,贺静波,等.高比例新能源和电力电子设备电力系统的宽频振荡研究综述[J].中国电机工程学报,2020,40(15):4720-4732. MA Ningning,XIE Xiaorong,HE Jingbo,et al.Review of wide-band oscillation in renewable and power electronics highly integrated power systems[J].Proceedings of the CSEE,2020,40(15):4720-4732.
    [2] 乔志杰,马临超.适用于电力系统稳定性提升的大规模储能控制策略研究[J].高压电器,2022,58(12):75-84+91. QIAO Zhijie,MA Linchao.Research on large-scale energy storage control strategy for power system stability improvement[J].High Voltage Apparatus,2022,58(12):75-84+91.
    [3] 陈露洁,徐式蕴,孙华东,等.高比例电力电子电力系统宽频带振荡研究综述[J].中国电机工程学报,2021,41(7):2297-2310. CHEN Lujie,XU Shiyun,SUN Huadong,et al.A survey on wide-frequency oscillation for power systems with high penetration of power electronics[J].Proceedings of the CSEE,2021,41(7):2297-2310.
    [4] 曹芸凯,赵涛,朱爱华,等.计及电网和线路阻抗的并联逆变器谐振抑制方法[J].电力科学与技术学报,2022,37(2):188-196. CAO Yunkai,ZHAO Tao,ZHU Aihua,et al.Resonance suppression method for parallel inverters considering the grid and line impedance[J].Journal of Electric Power Science and Technology,2022,37(2):188-196.
    [5] 赵鹏,黄云辉,王栋,等.基于有源阻尼控制的区域电网新能源基地次同步振荡抑制的研究[J].智慧电力,2024,52(4):85-90+115. ZHAO Peng,HUANG Yunhui,WANG Dong,et al.Subsynchronous oscillation suppression of new energy base in regional power grid based on active damping control[J].Smart Power,2024,52(4):85-90+115.
    [6] 张东辉,陈新.基于阻抗视角的新能源发电系统宽频振荡抑制技术综述[J/OL].中国电机工程学报:1-20[2023-11-20].https://doi.org/10.13334/j.0258-8013.pcsee.231365. ZHANG Donghui,CHEN Xin.Overview of broadband oscillation mitigation of new energy generation power system based on impedance perspective[J/OL].Proceedings of the CSEE:1-20[2023-11-20].https://doi.org/10.13334/j.0258-8013.pcsee.231365.
    [7] 王磊,邓新昌,侯俊贤,等.适用于电磁暂态高效仿真的变流器分段广义状态空间平均模型[J].中国电机工程学报,2019,39(11):3130-3140. WANG Lei,DENG Xinchang,HOU Junxian,et al.A piecewise generalized state space model of power converters for electromagnetic transient efficient simulation[J].Proceedings of the CSEE,2019,39(11):3130-3140.
    [8] 姜齐荣,王玉芝.电力电子设备高占比电力系统电磁振荡分析与抑制综述[J].中国电机工程学报,2020,40(22):7185-7201. JIANG Qirong,WANG Yuzhi.Overview of the analysis and mitigation methods of electromagnetic oscillations in power systems with high proportion of power electronic equipment[J].Proceedings of the CSEE,2020,40(22):7185-7201.
    [9] 郭小江,郭剑波,王成山.考虑直流输电系统外特性影响的多直流馈入短路比实用计算方法[J].中国电机工程学报,2015,35(9):2143-2151. GUO Xiaojiang,GUO Jianbo,WANG Chengshan.Practical calculation method for multi-infeed short circuit ratio influenced by characteristics of external characteristics of DC system[J].Proceedings of the CSEE,2015,35(9):2143-2151.
    [10] FARROKHABADI M,CA?IZARES C A,SIMPSON-PORCO J W,et al.Microgrid stability definitions,analysis,and examples[J].IEEE Transactions on Power Systems,2020,35(1):13-29.
    [11] KAZEM BAKHSHIZADEH M,WANG X F,BLAABJERG F,et al.Couplings in phase domain impedance modeling of grid-connected converters[J].IEEE Transactions on Power Electronics,2016,31(10):6792-6796.
    [12] SUN J.Small-signal methods for AC distributed power systems–a review[J].IEEE Transactions on Power Electronics,2009,24(11):2545-2554.
    [13] LI Y,SHUAI Z K,LIU X,et al.Stability analysis and location optimization method for multiconverter power systems based on nodal admittance matrix[J].IEEE Journal of Emerging and Selected Topics in Power Electronics,2021,9(1):529-538.
    [14] 刘方诚,刘进军,张昊东,等.基于G-范数和sum-范数的三相交流级联系统稳定性判据[J].中国电机工程学报,2014,34(24):4092-4100. LIU Fangcheng,LIU Jinjun,ZHANG Haodong,et al.G-norm and sum-norm based stability criterion for three-phase AC cascade systems[J].Proceedings of the CSEE,2014,34(24):4092-4100.
    [15] YANG D S,SUN Y.SISO impedance-based stability analysis for system-level small-signal stability assessment of large-scale power electronics-dominated power systems[J].IEEE Transactions on Sustainable Energy,2022,13(1):537-550.
    [16] 赵文梦,陈鹏伟,姜文伟,等.基于导纳矩阵与圆盘估计的多节点直流配电系统谐振稳定性分析方法[J].中国电机工程学报,2023,43(16):6242-6255. ZHAO Wenmeng,CHEN Pengwei,JIANG Wenwei,et al.A method for resonance stability analysis of multi-bus DC distribution system based on admittance matrix and disc estimation[J].Proceedings of the CSEE,2023,43(16):6242-6255.
    [17] 雷傲宇,汪林光,梅勇,等.多端柔性直流电网的中高频振荡特性分析[J].电网与清洁能源,2023,39(7):54-60. LEI Aoyu,WANG Linguang,MEI Yong,et al.An analysis of medium & high-frequency oscillation characteristics in multi-terminal flexible HVDC networks[J].Power System and Clean Energy,2023,39(7):54-60.
    [18] 程静,苏乐,岳雷.双馈风电并网系统的宽频振荡机理分析与抑制[J].电力系统保护与控制,2023,51(12):1-13. CHENG Jing,SU Le,YUE Lei.Mechanism analysis and suppression of broadband oscillation in a DFIG wind power grid-connected system[J].Power System Protection and Control,2023,51(12):1-13.
    [19] 李绍阶,王玮,唐芬,等.基于阻抗模型的并网变流器低频振荡机理研究[J].电网技术,2018,42(9):2787-2798. LI Shaojie,WANG Wei,TANG Fen,et al.Low frequency oscillation mechanism of grid-connected converter based on impedance model[J].Power System Technology,2018,42(9):2787-2798.
    [20] 刘华坤,谢小荣,何国庆,等.新能源发电并网系统的同步参考坐标系阻抗模型及其稳定性判别方法[J].中国电机工程学报,2017,37(14):4002-4007+4278. LIU Huakun,XIE Xiaorong,HE Guoqing,et al.Synchronous reference frame based impedance model and stability criterion for grid-connected renewable energy generation systems[J].Proceedings of the CSEE,2017,37(14):4002-4007+4278.
    [21] 辛焕海,董炜,袁小明,等.电力电子多馈入电力系统的广义短路比[J].中国电机工程学报,2016,36(22):6013-6027. XIN Huanhai,DONG Wei,YUAN Xiaoming,et al.Generalized short circuit ratio for multi power electronic based devices infeed to power systems[J].Proceedings of the CSEE,2016,36(22):6013-6027.
    [22] WEN B,BOROYEVICH D,BURGOS R,et al.Analysis of D-Q small-signal impedance of grid-tied inverters[J].IEEE Transactions on Power Electronics,2016,31(1):675-687.
    [23] 刘雨昕,彭克,赵子达,等.多虚拟同步发电机并联系统功率低频振荡机理分析[J].电力系统自动化,2024,48(19):89-100. LIU Yuxin,PENG Ke,ZHAO Zida,et al.Mechanism analysis of power low-frequency oscillations in parallel system of multiple virtual synchronous generators[J].Automation of Electric Power Systems,2024,48(19):89-100.
    [24] 谢小荣,刘华坤,贺静波,等.电力系统新型振荡问题浅析[J].中国电机工程学报,2018,38(10):2821-2828,3133. XIE Xiaorong,LIU Huakun,HE Jingbo,et al.On new oscillation issues of power systems[J].Proceedings of the CSEE,2018,38(10):2821-2828,3133.
    [25] 朱宇昕,赵晋斌,毛玲,等.并网系统的广义阻抗比及其稳定性分析与研究[J].中国电机工程学报,2020,40(22):7240-7249. ZHU Yuxin,ZHAO Jinbin,MAO Ling,et al.Generalized impedance ratio and stability analysis for grid-connected systems[J].Proceedings of the CSEE,2020,40(22):7240-7249.
    [26] JIANG S,ZHU Y,KONSTANTINOU G.Settling angle-based stability criterion for power-electronics-dominated power systems[J].IEEE Transactions on Power Electronics,2023,38(3):2972-2984.
    [27] CAO W C,MA Y W,WANG F,et al.Low-frequency stability analysis of inverter-based islanded multiple-bus AC microgrids based on terminal characteristics[J].IEEE Transactions on Smart Grid,2020,11(5):3662-3676.
    [28] 李彪.基于谐波线性化的三相并网逆变器系统建模和稳定性分析[D].重庆:重庆大学,2019. LI Biao.Modeling and stability analysis of three-phase grid-connected inverter system based on harmonic linearization[D].Chongqing:Chongqing University,2019.
    [29] 高英瀚.三相LCL型并网变流器控制性能分析及改进[D].北京:北京交通大学,2020. GAO Yinghan.Control performance analysis and improvement of three-phase LCL grid-connected converter[D].Beijing:Beijing Jiaotong University,2020.
    [30] 年珩,庞博,许国东,等.应对并补电网下DFIG系统高频谐振的宽频阻抗重塑策略[J].电力系统自动化,2018,42(18):48-56. NIAN Heng,PANG Bo,XU Guodong,et al.Reshaping strategy of wide frequency impedance for DFIG system to suppress high frequency resonance under parallel compensation grid[J].Automation of Electric Power Systems,2018,42(18):48-56.
    [31] 李杨.多变换器系统小信号稳定性分析与提升方法研究[D]长沙:湖南大学,2021.LI Yang.Study on small signal stability analysis and lifting method of multi-converter system[D].Changsha:Hunan University,2021.
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陈 波,斯 琪,谌艳红,等.基于广义奈奎斯特判据的新能源多场站系统小信号稳定薄弱并网单元辨识[J].电力科学与技术学报,2024,39(5):129-140.
CHEN Bo, SI Qi, CHEN Yanhong, et al. Identification of grid-connected units with the weakest small‑signal stability in multiple renewable energy stations based on generalized Nyquist criterion[J]. Journal of Electric Power Science and Technology,2024,39(5):129-140.

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