RT Journal Article
A1 Dushyant Sharma
A1 Sukumar Mishra

PB iet
T1 Power system frequency stabiliser for modern power systems
JN IET Generation, Transmission & Distribution
VO 12
IS 9
SP 1961
OP 1969
AB Modern power system involves growing use of open channel communication in secondary frequency regulation which introduces time delay in the automatic generation control loop which may lead to system instability. This study proposes a novel power system frequency stabiliser (PSFS) which is a modified secondary controller in order to improve the system stability in the presence of large communication delays. An auxiliary signal is added to the secondary controller to provide additional damping. The gain of the controller is obtained by meta-heuristic methods. The proposed controller is first developed on a single area hydropower system and the same is then applied on the Western System Coordinating Council 3-machine, 9-bus power system. Furthermore, to show the effectiveness of the proposed PSFS in a large practical multi-area system; it is also applied to the IEEE 39-bus system. Results show that the proposed controller significantly improves the stability of a power system operating with large communication delay which is first considered as constant and then the stability improvement with the proposed PSFS in the presence of random communication delays is also shown. The PSFS performance is tested by the results obtained with MATLAB/Simulink simulations and further verified on a real-time simulator.
K1 automatic generation control loop
K1 random communication delays
K1 modern power systems
K1 IEEE 39-bus system
K1 controller gain
K1 real-time simulator
K1 Western System Coordinating Council 3-machine, 9-bus power system
K1 multiarea system
K1 meta-heuristic methods
K1 time delay
K1 secondary frequency regulation
K1 PSFS
K1 auxiliary signal
K1 system instability
K1 single area hydropower system
K1 Matlab-Simulink simulations
K1 modified secondary controller
K1 large communication delays
K1 open channel communication
K1 power system frequency stabiliser
DO https://doi.org/10.1049/iet-gtd.2017.1295
UL https://digital-library.theiet.org/;jsessionid=ek4v1ipva5a5.x-iet-live-01content/journals/10.1049/iet-gtd.2017.1295
LA English
SN 1751-8687
YR 2018
OL EN