18 results for “unified power flow controller”

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Research ArticleOpen accessIn the keywordsOptimal Control Design of Static Var Compensator for Damping Power System OscillationPrechanon KumkratugProblem statement: The disturbance in power system is unavoidable situation. It causes in power system oscillation. Approach: This study applied the Static Var Compensator (SVC) to damp power system oscillation. The optimal control design is applied to derive the control strategy of SVC. The simulation results are tested on a Single Machine Infinite bus. The proposed method is equipped in … …American Journal of Applied Sciences, Vol. 8, Issue 5 · 17 May 2011 · 7,678 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsApplication Lyapunov Theory to Determine Control Strategy of Static Var Compensator for Damping Power System OscillationPrechanon KumkratugProblem statement: The disturbance in power system is unavoidable situation. It causes in power system oscillation. Approach: This study applied the Static Var Compensator (SVC) to damp power system oscillation. The stability criterion of the Lyapunov is applied to derive the control strategy of SVC. The simulation results are tested on a Single Machine Infinite bus. The proposed method is … …American Journal of Applied Sciences, Vol. 8, Issue 2 · 28 Feb 2011 · 7,430 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsMitigation Voltage Sag in Power System by Static Synchronous CompensatorPrechanon KumkratugProblem statement: The disturbance in power system is unavoidable situation. It cause in voltage sag in power system. Approach: This study applied the STATCOM to mitigate voltage of the system. The mathematical model of power system equipped with a STATCOM is systematically derived. The presented mathematical model is shown how it effects on voltage sag improvement. The simulation results are … …American Journal of Applied Sciences, Vol. 7, Issue 12 · 31 Dec 2010 · 7,681 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsImprovement of Transient Stability of Power System by Thyristor Controlled Phase Shifter TransformerPrechanon KumkratugProblem statement: The improvement of transient stability of the power system was one of the most challenging research areas in power engineer. Approach: This study presents the method to improve transient stability of power system by Thyristor Controlled Phase Shifter Transformer (TCPST). The mathematical model of power system equipped with a TCPST was systematically derived. The parameters of TCPST are … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,724 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsDesign of Robust UPFC Controller Using H∞ Control Theory in Electric Power SystemSeyed Abbas Taher, Shahabeddin Akbari, Ali Abdolalipour, Reza HemattiAn industrial plant, such a power system, always contains parametric uncertainties. In the design of a controller the uncertainties have to be considered. Otherwise, if the real plant differs from the assumed plant model, a controller, designed based on classical controller design approaches, may not ensure the stability of the overall system. In this paper design of robust control for … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 7,090 accessesView PDF Cite

Research ArticleOpen accessIn the abstractCOMPARISON OF OPTIMIZATION TECHNIQUE TO FIND THE OPTIMAL LOCATION OF FACTS CONTROLLERS FOR TRANSMISSION LINEJagadeesh Kumar Muthukrishnan, Subhransu Sekhar Dash, Harish Kiran Selvakumar et al.The aspect of this study is to compare the three different algorithms such as Genetic Algorithm (GA), Enhanced Genetic Algorithm (EGA) and Particle Swarm Optimization (PSO) to fine the optimal location of the FACTS device in the transmission line. The FACTS devices Thyristor Controlled Series Compensator (TCSC) and Unified Power Flow Controller (UPFC) are selected based on the steady stability … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 26 Dec 2013 · 6,677 accessesView PDF Cite

Research ArticleOpen accessIn the abstractImplementation of Line Stability Index for Contingency Analysis and Screening in Power SystemsC. Subramani, Subhransu Sekhar Dash, Vivek Kumar, Harish KiranProblem statement: Estimating the margin in the loadability of the power system is essential in the real time voltage stability assessment. Voltage stability is currently one of the most important research areas in the field of electrical power system. In power system operation unpredictable events is termed as contingency and may be caused by line outage in the system which … …Journal of Computer Science, Vol. 8, Issue 4 · 11 Feb 2012 · 7,132 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDevelopment of the Unified Series-Shunt Compensator for Power Quality MitigationM. A. Hannan, A. Mohamed, A. Hussain, Majid al DabbayThis study describes the derivation of an analytical model and simulation for the unified series-shunt compensator (USSC) for investigating power quality in power distribution system. The USSC simulation comprises of two 12-pulse inverters which were connected in series and in shunt with the system. A generalized sinusoidal pulse width modulation (SPWM) switching technique was developed in the proposed controller for … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,636 accessesView PDF Cite