TY - JOUR
T1 - Small-signal modeling of photovoltaic power generation system and global optimal design for its controller parameters
AU - Xiong, Liansong
AU - Liu, Xiaokang
AU - Zhuo, Fang
AU - Xie, Yifeng
AU - Zhu, Minghua
AU - Zhang, Hailong
PY - 2014/5
Y1 - 2014/5
N2 - It is favorable for acquainting with the interactive influence law between solar energy generation system and power grid to research on the transient stability of photovoltaic (PV) generation system. On the basis of overall considering detailed models of important components in PV generation system, a whole system small signal model suitable for transient stability analysis is established and accordingly the small signal stability and low-frequency oscillation characteristics of PV generation system are analyzed. Research results show that the outer voltage loop and the inner active current loop of PV inverter obviously and overall influence on the eigenvalues of the studied system, so the its stability is greatly influenced. Too large values of outer voltage loop's integral coefficient and inner active current loop may affect on the damping of power grid, and even change the damping property of PV generation system. Finally, a global optimal design method of controller parameters, which can enhance system stability, is proposed to provide technical support for the reasonable design of controller parameters.
AB - It is favorable for acquainting with the interactive influence law between solar energy generation system and power grid to research on the transient stability of photovoltaic (PV) generation system. On the basis of overall considering detailed models of important components in PV generation system, a whole system small signal model suitable for transient stability analysis is established and accordingly the small signal stability and low-frequency oscillation characteristics of PV generation system are analyzed. Research results show that the outer voltage loop and the inner active current loop of PV inverter obviously and overall influence on the eigenvalues of the studied system, so the its stability is greatly influenced. Too large values of outer voltage loop's integral coefficient and inner active current loop may affect on the damping of power grid, and even change the damping property of PV generation system. Finally, a global optimal design method of controller parameters, which can enhance system stability, is proposed to provide technical support for the reasonable design of controller parameters.
KW - Eigenvalue analysis
KW - Global optimal design of parameters
KW - Photovoltaic generation system
KW - Small-signal modeling
KW - Transient stability
UR - https://www.scopus.com/pages/publications/84900503568
U2 - 10.13335/j.1000-3673.pst.2014.05.017
DO - 10.13335/j.1000-3673.pst.2014.05.017
M3 - 文章
AN - SCOPUS:84900503568
SN - 1000-3673
VL - 38
SP - 1234
EP - 1241
JO - Dianwang Jishu/Power System Technology
JF - Dianwang Jishu/Power System Technology
IS - 5
ER -
