Extended Nodal Admittance Matrix Based Stability Analysis of HVDC Connected AC Grids

被引:2
作者
Zhang, Yonggang [1 ]
Duckwitz, Daniel [1 ,2 ]
Wiese, Nils [1 ]
Braun, Martin [1 ,2 ]
机构
[1] Univ Kassel, Dept Energy Management & Power Syst Operat, D-34121 Kassel, Germany
[2] Fraunhofer Inst Energy Econ & Energy Syst Technol, D-34117 Kassel, Germany
关键词
Power system stability; Admittance; HVDC transmission; Stability criteria; Circuit stability; Couplings; Power system dynamics; AC-DC dynamic coupling; dynamic mode; damping ratio; HVDC; stability assessment; WIND FARM; RESONANCE; MMC; CONVERTERS;
D O I
10.1109/ACCESS.2022.3177232
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Motivated by emerging HVDC oscillation issues resulted from the interaction with AC grids, impedance-based stability analysis has become an attractive approach in the de-risking studies due to the capability of black-box modelling and clear physical meaning. However, impedance-based stability assessment of HVDC is typically conducted either from the AC side or from the DC side, without fully considering both AC and DC grid dynamics, thus impairs evaluation accuracy. In this paper, the nodal admittance matrix based resonance mode analysis method is extended to include both AC and DC dynamics through formulating a hybrid AC/DC nodal admittance matrix. In contrast to the widely adopted Nyquist-based methods, the dynamic mode identification and damping ratio extraction using the frequency scanning of modal impedances derived from nodal admittance matrix is more straightforward for stability check, and the eigenvalue-decomposition based participation factor analysis is more useful in analyzing system wide dynamic interaction and identifying oscillation sources, which is in favor of the design of mitigation measures. The effectiveness of the described method is illustrated by case studies using a simple hybrid AC/DC grid consisting of converter-interfaced generation, synchronous machine and HVDC. Stability impacts of the strengths and modelling details of the connected AC grids for HVDC, the switching states of parallel AC line(s) for HVDC, and different modulation modes of HVDC converters are analyzed. It is observed, the AC-DC dynamic coupling can induce the interaction of the AC grids connected in different HVDC terminals. EMT-simulations in MATLAB/Simulink validate the analytical results.
引用
收藏
页码:55200 / 55212
页数:13
相关论文
共 35 条
  • [1] Understanding the Origin of Oscillatory Phenomena Observed Between Wind Farms and HVdc Systems
    Amin, Mohammad
    Molinas, Marta
    [J]. IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2017, 5 (01) : 378 - 392
  • [2] Bellman R, 1970, INTRO MATRIX ANAL
  • [3] Buchhagen C., 2016, P WIND INTEGRATION W, P1
  • [4] Buchhagen C., 2015, ETG FB 147 INT ETG C
  • [5] MMC Impedance Modeling and Interaction of Converters in Close Proximity
    Chen, Yin
    Xu, Lie
    Egea-Alvarez, Agusti
    Marshall, Benjamin
    Rahman, Md Habibur
    Oluwole, Adeuyi Daniel
    [J]. IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2021, 9 (06) : 7223 - 7236
  • [6] Duckwitz D., 2019, THESIS U KASSEL FRAU, DOI 10.17170/kobra-20190510451
  • [7] Bus Participation Factor Analysis for Harmonic Instability in Power Electronics Based Power Systems
    Ebrahimzadeh, Esmaeil
    Blaabjerg, Frede
    Wang, Xiongfei
    Bak, Claus Leth
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (12) : 10341 - 10351
  • [8] Admittance-Based Stability Analysis: Bode Plots, Nyquist Diagrams or Eigenvalue Analysis?
    Fan, Lingling
    Miao, Zhixin
    [J]. IEEE TRANSACTIONS ON POWER SYSTEMS, 2020, 35 (04) : 3312 - 3315
  • [9] GREEN EI, 1955, AM SCI, V43, P584
  • [10] Rational approximation of frequency domain responses by vector fitting
    Gustavsen, B
    Semlyen, A
    [J]. IEEE TRANSACTIONS ON POWER DELIVERY, 1999, 14 (03) : 1052 - 1061