TY - JOUR
T1 - Large-Signal Stability Modeling for the Grid-Connected VSC Based on the Lyapunov Method
AU - Shakerighadi, Bahram
AU - Ebrahimzadeh, Esmaeil
AU - Blaabjerg, Frede
AU - Bak, Claus Leth
PY - 2018/9
Y1 - 2018/9
N2 - In this paper, a Lyapunov-based method is used in order to determine the stability boundaries of the grid-connected voltage source converter (VSC). To do so, a state space model of the VSC is used to form the Lyapunov function of the system. Then, by using the eigenvalues of the Lyapunov function, the system stability boundaries will be determined. It is shown that the grid-connected VSC works in its stable mode when all of its Lyapunov function’s eigenvalues are positive. The proposed model validity is tested by time-domain simulation. Simulation results show that the method is credible in determining the stability margin of the grid-connected VSC.
AB - In this paper, a Lyapunov-based method is used in order to determine the stability boundaries of the grid-connected voltage source converter (VSC). To do so, a state space model of the VSC is used to form the Lyapunov function of the system. Then, by using the eigenvalues of the Lyapunov function, the system stability boundaries will be determined. It is shown that the grid-connected VSC works in its stable mode when all of its Lyapunov function’s eigenvalues are positive. The proposed model validity is tested by time-domain simulation. Simulation results show that the method is credible in determining the stability margin of the grid-connected VSC.
KW - Voltage Source Converter (VSC)
KW - Energy Function (EF)
KW - Lyapunov-based stability analysis
UR - http://www.scopus.com/inward/record.url?scp=85056099387&partnerID=8YFLogxK
U2 - 10.3390/en11102533
DO - 10.3390/en11102533
M3 - Journal article
SN - 1996-1073
VL - 11
SP - 1
EP - 16
JO - Energies
JF - Energies
IS - 10
M1 - 2533
ER -