DocumentCode :
1507798
Title :
Optimization and coordination of damping controls for improving system dynamic performance
Author :
Lei, Xianzhang ; Lerch, Edwin N. ; Povh, Dusan
Author_Institution :
Siemens AG, Germany
Volume :
16
Issue :
3
fYear :
2001
fDate :
8/1/2001 12:00:00 AM
Firstpage :
473
Lastpage :
480
Abstract :
This paper presents a global tuning procedure for FACTS device stabilizers (FDS) and power system stabilizers (PSS) in a multi-machine power system using a parameter-constrained nonlinear optimization algorithm implemented in a simulation program. This algorithm deals with such an optimization problem by solving a sequential quadratic programming using the dual algorithm. The main objective of this procedure is to simultaneously optimize pre-selected parameters of the FDSs and PSSs having fixed parameters in coping with the complex nonlinear nature of the power system. By minimizing a nonexplicit target function in which the oscillatory rotor modes of the generators involved and suing characteristics between areas are included, interactions among the FACTS controls under transient conditions in a multimachine power system are improved. A multimachine power system equipped with a TCSC and an SVC as well as three PSSs is applied to demonstrate the efficiency and robustness of the tuning procedure presented. The results obtained from simulations validate the improvement in damping of overall power oscillations in the system in an optimal and globally coordinated manner. The simulations also show that the stabilizers tuned are robust in providing adequate damping for a range of conditions in the system
Keywords :
control system analysis computing; control system synthesis; damping; flexible AC transmission systems; optimal control; power system analysis computing; power system dynamic stability; power transmission control; robust control; FACTS; FACTS device stabilizers; computer simulation; control simulation; damping controls optimisation/coordination; dual algorithm; efficiency; generator oscillatory rotor modes; global tuning procedure; multimachine power system; nonexplicit target function minimisation; parameter-constrained nonlinear optimization algorithm; power oscillations damping; power system dynamic performance improvement; power system stabilizers; robustness; sequential quadratic programming; transient conditions; Character generation; Control systems; Damping; Power generation; Power system simulation; Power system transients; Quadratic programming; Robustness; Rotors; Tuning;
fLanguage :
English
Journal_Title :
Power Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8950
Type :
jour
DOI :
10.1109/59.932284
Filename :
932284
Link To Document :
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