TY - JOUR
T1 - Reflection Coefficient Stability Criterion for Multi-Bus Multi-VSC Power Systems
AU - Chou, Shih Feng
AU - Wang, Xiongfei
AU - Blaabjerg, Frede
PY - 2020/6
Y1 - 2020/6
N2 - This paper proposes a reflection coefficient stability criterion for multi-bus power systems with multiple voltage-source converters (VSCs). In the method, VSCs are modeled as two-port networks, which are then characterized by the incident and reflected power waves, as well as their ratios, i.e. reflection coefficients. Two superior features over the impedance-based stability analysis are provided, which are no need for system partitioning to avoid unstable subsystems, and the identification of relative stability and the critically oscillating frequency at each bus of the power system. Case studies with experimental results demonstrate the effectiveness of the approach.
AB - This paper proposes a reflection coefficient stability criterion for multi-bus power systems with multiple voltage-source converters (VSCs). In the method, VSCs are modeled as two-port networks, which are then characterized by the incident and reflected power waves, as well as their ratios, i.e. reflection coefficients. Two superior features over the impedance-based stability analysis are provided, which are no need for system partitioning to avoid unstable subsystems, and the identification of relative stability and the critically oscillating frequency at each bus of the power system. Case studies with experimental results demonstrate the effectiveness of the approach.
KW - Reflection coefficient
KW - scattering parameters
KW - stability analysis
KW - two-port network
KW - voltage source converters
UR - http://www.scopus.com/inward/record.url?scp=85087393448&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2020.3002661
DO - 10.1109/ACCESS.2020.3002661
M3 - Journal article
AN - SCOPUS:85087393448
SN - 2169-3536
VL - 8
SP - 111186
EP - 111199
JO - IEEE Access
JF - IEEE Access
M1 - 9117126
ER -