DocumentCode :
2317754
Title :
Optimization control of STATCOM in power system with Adaptive Critic Designs
Author :
Shaojian Song ; Yi He ; Xiaofeng Lin ; Bilian Liao
fYear :
2010
fDate :
25-27 Aug. 2010
Firstpage :
122
Lastpage :
126
Abstract :
This paper presents a novel nonlinear optimal neurocontroller for a static compensator (STATCOM) connected to a power system. The design for the optimal controller is based on a class of Adaptive Critic Designs (ACDs) called the Action Dependant Heuristic Dynamic Programming (ADHDP). The ADHDP class of ACDs uses two neural networks, an “Action” network (which actually sends the control signals) and a “Critic” network (which critics the action network performance). The optimal control policy is evolved by the action network over a period of time using the feedback signals provided by the critic network. A series of simulations on STATCOM connected to a single machine infinite bus system with proposed neurocontroller and conventional PI controller were carried out in MATLAB/SIMULINK. Results are presented to show that the ADHDP-based neurocontroller performs better than the conventional PI controller, especially when the system conditions and configuration were changed. The numerical simulation results of using this method in one STATCOM connected to power system show that the control scheme can maintain voltage at load bus and prevent the occurrence of voltage collapse when the large disturbances occur.
Keywords :
mathematics computing; neural nets; power system control; static VAr compensators; ADHDP-based neurocontroller; MATLAB/SIMULINK; PI controller; STATCOM; action dependant heuristic dynamic programming; adaptive critic designs; neural networks; nonlinear optimal neurocontroller; optimal controller; optimization control; power system; static compensator; Artificial neural networks; Automatic voltage control; Neurocontrollers; Optimal control; Power system dynamics; Reactive power;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Computational Intelligence (IWACI), 2010 Third International Workshop on
Conference_Location :
Suzhou, Jiangsu
Print_ISBN :
978-1-4244-6334-3
Type :
conf
DOI :
10.1109/IWACI.2010.5585174
Filename :
5585174
Link To Document :
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