Naslov
Introducing low-order system frequency response modelling of a future power system with high penetration of wind power plants with frequency support capabilities

Autori
Krpan, Matej ; Kuzle, Igor

Izvornik
IET Renewable Power Generation (1752-1416) 12 (2018), 13; 1453-1461

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
power system stability ; wind power ; wind power plants ; frequency control ; frequency response ; frequeny stability ; power system control ; power system integration ; model order reduction

Sažetak
Wind power generation has reached a significant share in power systems worldwide and will continue to increase. As the converter- connected generation reduces the grid inertia, more and more interest has been given to exploiting the kinetic energy and controllability of variable-speed wind turbine generators (VSWTGs) for frequency support. Consequently, the grid frequency dynamics are changing. Thus, it is necessary to include the frequency response of wind power plants in the system frequency response (SFR) model. In this paper, a novel approach to low-order SFR modelling of a future power system with a high share of frequency-support-capable VSWTGs has been presented. Low-order model of VSWTGs with primary frequency response and natural inertial response has been developed considering different wind turbine operating regimes and compared to the nonlinear model for validation. Low-order model has been presented in a symbolic transfer function form. Model accuracy has been discussed and the impact of VSWTG parameters on frequency response has been analysed. The developed model facilitates studying power system frequency dynamics by avoiding the need for modelling complex VSWTG systems, while retaining a satisfying level of accuracy.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA