Small-signal stability analysis for the multi-terminal VSC MVDC distribution network; a review

Autor: Patrobers Simiyu, Ai Xin, Girmaw T. Bitew, Muhammad Shahzad, Wang Kunyu, Peter M. Kamunyu
Jazyk: angličtina
Rok vydání: 2019
Předmět:
power grids
bifurcation
stability
eigenvalues and eigenfunctions
power system stability
power electronics
distributed power generation
fault location
Lyapunov methods
power distribution protection
small-signal stability analysis
multiterminal VSC MVDC distribution network
stable operation
terrestrial multiterminal
medium voltage DC distribution network
future universal DC grid
power electronic based systems
PEBS
impedance-based methods
local stability analysis
state-space modelling-eigenvalue analysis method
global stability analysis
Lyapunov linearisation method
accurate small-signal
large-signal stability study
bifurcation analysis
single small-signal stability criterion
suitable small-signal stability approaches
multiterminal MVDC distribution network
low-voltage DC systems
high-voltage DC systems
Engineering (General). Civil engineering (General)
TA1-2040
Zdroj: The Journal of Engineering (2019)
Druh dokumentu: article
ISSN: 2051-3305
DOI: 10.1049/joe.2018.8842
Popis: The stable operation and control of the proposed terrestrial multi-terminal Voltage Source Converter (VSC) medium voltage DC (MVDC) distribution network is a remarkable motivation towards developing the future universal DC grid interconnecting the low voltage DC systems on one side and the high voltage DC systems on the other. The small-signal stability analysis are important in designing these power electronic based systems (PEBS). In this study, small-signal stability approaches for PEBS are reviewed with the aim of identifying suitable methods for the proposed MVDC distribution network. It is established that the impedance-based methods are suitable for local stability analysis complementing very well with the state-space modelling-eigenvalue analysis method best for global stability analysis. The Lyapunov linearisation method offers simple, adaptable, and accurate small-signal and large-signal stability study. On the other hand, the bifurcation analysis is an emerging non-linear approach with promising efficiency and precision. In conclusion, there is no single small-signal stability criterion that encompass an acceptable level of accuracy, adaptability, and efficiency. Thus, the impedance-based methods combined with state-space modelling-eigenvalue analysis, Lyapunov linearisation, and bifurcation theory can be suitable small-signal stability approaches for the multi-terminal MVDC distribution network.
Databáze: Directory of Open Access Journals
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