TY - JOUR
T1 - Gravitational search algorithm for coordinated design of PSS and TCSC as damping controller
AU - Eslami, M.
AU - Shareef, H.
AU - Mohamed, A.
AU - Khajehzadeh, M.
N1 - Funding Information:
Foundation item: Project(UKM-DLP-2011-059) supported by the National University of Malaysia Received date: 2011−06−21; Accepted date: 2011−10−20 Corresponding author: M. Eslami, Professor, PhD; Tel: +60−173274391; E-mail: mahdiyeh_eslami@yahoo.com
PY - 2012/4
Y1 - 2012/4
N2 - A newly developed heuristic global optimization algorithm, called gravitational search algorithm (GSA), was introduced and applied for simultaneously coordinated designing of power system stabilizer (PSS) and thyristor controlled series capacitor (TCSC) as a damping controller in the multi-machine power system. The coordinated design problem of PSS and TCSC controllers over a wide range of loading conditions is formulated as a multi-objective optimization problem which is the aggregation of two objectives related to damping ratio and damping factor. By minimizing the objective function with oscillation, the characteristics between areas are contained and hence the interactions among the PSS and TCSC controller under transient conditions are modified. For evaluation of effectiveness and robustness of proposed controllers, the performance was tested on a weakly connected power system subjected to different disturbances, loading conditions and system parameter variations. The eigenvalues analysis and nonlinear simulation results demonstrate the high performance of proposed controllers which is able to provide efficient damping of low frequency oscillations.
AB - A newly developed heuristic global optimization algorithm, called gravitational search algorithm (GSA), was introduced and applied for simultaneously coordinated designing of power system stabilizer (PSS) and thyristor controlled series capacitor (TCSC) as a damping controller in the multi-machine power system. The coordinated design problem of PSS and TCSC controllers over a wide range of loading conditions is formulated as a multi-objective optimization problem which is the aggregation of two objectives related to damping ratio and damping factor. By minimizing the objective function with oscillation, the characteristics between areas are contained and hence the interactions among the PSS and TCSC controller under transient conditions are modified. For evaluation of effectiveness and robustness of proposed controllers, the performance was tested on a weakly connected power system subjected to different disturbances, loading conditions and system parameter variations. The eigenvalues analysis and nonlinear simulation results demonstrate the high performance of proposed controllers which is able to provide efficient damping of low frequency oscillations.
KW - Gravitational search algorithm
KW - Power system stabilizer
KW - Thyristor controlled series capacitor
KW - Tuning
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U2 - 10.1007/s11771-012-1094-2
DO - 10.1007/s11771-012-1094-2
M3 - Article
AN - SCOPUS:84862649366
SN - 1005-9784
VL - 19
SP - 923
EP - 932
JO - Journal of Central South University of Technology (English Edition)
JF - Journal of Central South University of Technology (English Edition)
IS - 4
ER -