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169 results for “Power line”

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Research ArticleOpen accessEvery word in the titleThe Mathematical Model of Power System with Thyristor Controlled Series Capacitor in Long Transmission LinePrechanon 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 Thyristor Controlled Series Capacitor (TCSC) has been proposed for the better control power flow and dynamic performance. The exact long transmission line model consists of the … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 27 Feb 2012 · 6,833 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTransient Stability of the Power System with the Exact Long Transmission Line ModelPrechanon KumkratugProblem statement: The exact long transmission line model consists of the lump of the series resistance, reactance and shunt capacitance. With the consideration the actual long transmission line model, it causes in the difficulty of deriving the mathematical model. Approach: This study investigates the transient stability of power system with consideration the exact long transmission line model. The concept of … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 24 Jan 2012 · 6,853 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInvestigating the Critical Clearing Time of Power System with the Exact Medium Transmission Line ModelPrechanon KumkratugProblem statement: The exact medium transmission line model consists of the resistance, series reactance and shunt capacitance. Most of previous research studies show the critical clearing time of single machine infinite bus while neglecting the resistance and capacitance of the line. Approach: This study investigates the critical clearing time of power system with consideration the exact medium transmission line mode. … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 23 Jan 2012 · 7,411 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleReduction 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 · 7,304 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDrawing Meshed One-Line Diagrams of Electric Power Systems using a Modified Controlled Spring Embedder Algorithm Enhanced with Geospatial DataAlexandre de Assis Mota, Lia Toledo Moreira MotaProblem statement: One-line diagrams are widely used in electrical power systems to provide a graphical view of state of the system and to assess its performance. Several methodologies and algorithms have been proposed to automatically draw the power system’s one-line diagram and provide satisfactory results for radial or small-size meshed networks. Nevertheless, actual power systems models are generally associated to … …Journal of Computer Science, Vol. 7, Issue 2 · 25 Feb 2011 · 8,096 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFast Decoupled Power Flow for Power System with High Voltage Direct Current Transmission Line SystemPrechanon KumkratugProblem statement: High voltage direct current transmission line system has been widely applied for control power flow in power system. The power flow analysis was the one of powerful tools by which the power system equipped was analyzed both for planning and operation strategies. Approach: This study presented the method to analyze power flow of power system consisted of HVDC … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 7,010 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCritical Aging Segments of Power Transmission LineH. H. Goh, N. E. Chin, Q. S. Chua et al.Nowadays, blackouts or sags of a conductor are threatening the safety and stable run of the power transmission lines. These phenomena happen due to the environmental conditions which change over the time, such as aging or temperature variations, precipitation and hotspots of power transmission lines as a result of extreme weather conditions. A precipitation condition result loses of heat from … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 4 · 9 Dec 2013 · 9,264 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePower-Voltage Characteristics of Power System with the Long Transmission LinePrechanon 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. Approach: This study applies the concept … …American Journal of Applied Sciences, Vol. 9, Issue 10 · 10 Aug 2012 · 8,676 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePower-Voltage Characteristics of Power System with the Short Transmission LinePrechanon KumkratugProblem statement: Power-Voltage curve provides very important information for voltage stability analysis. The exact short transmission line model consists of the resistance and 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 short line model. Approach: This study applied the concept of the … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 20 Mar 2012 · 7,454 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePower-Voltage Characteristics of Power System with the Medium Transmission LinePrechanon KumkratugProblem statement: Power-Voltage curve provides very important information for voltage stability analysis. The exact medium 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 medium line model. Approach: This study applies the concept of … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 19 Mar 2012 · 8,256 accessesView PDFCite