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197 results for “Flexible”
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Research ArticleOpen accessIn the keywordsVoltage Stability of Long Transmission Line Equipped with a Thyristor Controlled Series CapacitorPrechanon KumkratugProblem statement: Power-Voltage curve provides very important information for voltage stability analysis. The exact long transmission line model consists of the resistance and the reactance. The resistance causes in the active line loss. It is not easy task to achieve the power-voltage curve characteristics of power system with the exact long line model equipeed with a Thyristor Controlled Series Capacitor … …American Journal of Applied Sciences, Vol. 9, Issue 9 · 6 Aug 2012 · 6,974 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Effect of the Static Var Compensator and R/X Ratio of Short Transmission Line on Transient Stability of Single Machine Infinite Bus SystemPrechanon KumkratugProblem statement: It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rights-of-way issues and costs of construction and deregulation policies that introduced in recent years. The Static Var Compensator (SVC) has been proposed for the better control power flow and dynamic performance. The exact short transmission line model consists of the resistance … …American Journal of Applied Sciences, Vol. 9, Issue 4 · 7 Feb 2012 · 6,989 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPower Quality Analysis in 6 MW Wind Turbine Using Static Synchronous CompensatorR. Valarmathi, A. ChilambuchelvanProblem statement: An inherent problem with wind turbine power generation systems is the low power quality due to intermittent power generation in these systems. This not only affects the power generation but also the grid it is connected to. Approach: In this study a configuration consisting of a 6MW Wind Farm based on conventional Fixed Speed Induction Generator is analyzed. … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 23 Nov 2011 · 7,237 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInter-Area Power Systems Stability Improvement by Static Synchronous Series CompensatorPrechanon KumkratugProblem statement: The inter-area power systems have special characteristic of the stability behavior. The improvement of inter-area power system is one of the important aspects in power system. Approach: This study applies the Static Synchronous Series Compensator (SSSC) to improve stability of inter-area systems. The SSSC is modeled and then is applied to be incorporated into the power system model … …American Journal of Applied Sciences, Vol. 8, Issue 7 · 24 Jun 2011 · 7,010 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFuzzy Logic Controller for Static Synchronous Series Compensator with Energy Storage System for Transient Stability AnalysisSona Padma, M. RajaramProblem statement: FACTS devices play a major role in the efficient operation of the complex power system. FACTS devices such as STATCOM, SSSC and IPFC are in increasing usage. With energy storage systems they have a good control over the real as well as reactive power compensation and transient stability improvement. The design of controller for the SSSC with SMES … …Journal of Computer Science, Vol. 7, Issue 6 · 14 Jun 2011 · 6,699 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptimal Control Design of Static Synchronous Series Compensator for Damping Power System OscillationPrechanon KumkratugProblem statement: In power systems, there exists a continuous challenge to improve dynamic performance of power system. Approach: The Static Synchronous Series Compensator (SSSC) is a power electronic based device that has capability of controlling the power flow through the line both in steady state and dynamic sate. This study applied the SSSC to damp power system oscillation. The optimal … …Journal of Computer Science, Vol. 7, Issue 6 · 14 Jun 2011 · 6,888 accessesView PDFCite
Research ArticleOpen accessIn the keywordsReduction of Over Line Current in Power System from Short Circuit Effect Using Static Synchronous Series CompensatorPrechanon KumkratugProblem statement: One of the major problems in power system is the over line current from short circuit effect. It may cause in the electrical apparatus outages. Approach: Static Synchronous Series Compensator (SSSC) is a power electronic based device that has the capability of controlling the line current. This study applies the SSSC to decrease the over line current in … …American Journal of Applied Sciences, Vol. 8, Issue 2 · 28 Feb 2011 · 7,306 accessesView PDFCite
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 · 7,437 accessesView PDFCite
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 · 7,686 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPower System Stability Enhancement Using Unified Power Flow ControllerPrechanon KumkratugProblem statement: The enhancement of transient stability of the power system is one of the most challenging research areas in power engineer. Approach: This study presents the method to enhance transient stability of power system by Unified Power Flow Controller (UPFC). The mathematical model of power system equipped with a UPFC is systematically derived. The parameters of UPFC are modeled … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,679 accessesView PDFCite