Research ArticleOpen accessEvery word in the titlePower 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 accessEvery word in the titleDesign of Low- Power High-Speed Error Tolerant Shift and Add MultiplierK. N. Vijeyakumar, V. Sumathy, Sriram Komanduri, C. Chrisjin Gnana SujiProblem Statement: In this study, we had proposed a low power architecture for high speed multiplication. Approach: The modifications to the conventional shift and add multiplier includes introduction of modified error tolerant technique for addition and enabling of adder cell by current multiplication bit of the multiplier constant. The proposed architecture enables the removal of input multiplexer, switching of adder … …Journal of Computer Science, Vol. 7, Issue 12 · 18 Oct 2011 · 7,159 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTrade Promotions and Suppliers' Market PowerSandra Mottner, Steven H. Smith, T. J. OlneyProblem statement: Trade promotions provided to retailers from suppliers are not well understood and have not been consistently reported by manufacturers. Research about the phenomenon has consequently been limited and neither the trade nor government agencies fully understand the phenomenon and its implications. One implication is that some trade promotions (or trade allowances as they are also known) can pose … …American Journal of Economics and Business Administration, Vol. 3, Issue 3 · 19 Sep 2011 · 7,091 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSTATCOM Stabilizer based on Fuzzy Logic Control for Damping Power OscillationPrechanon KumkratugProblem statement: In power systems, there exists a continuous challenge to improve dynamic performance of power system. Approach: Static Synchronous Compensator (STATCOM) is a power electronic based device that has the capability of controlling the power flow through a line. This study applies the Static Synchronous Compensator (STATCOM) to control the power flow during dynamic period. To verify the effect … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 8 Sep 2011 · 7,444 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStatic Var Compensator based on Fuzzy Logic Control 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 fuzzy logic control is applied to determine 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 10 · 8 Sep 2011 · 7,270 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDesign For Test Technique for Leakage Power Reduction in Nanoscale Static Random Access MemoryN. M. Sivamangai, GunavathiProblem statement: As technology scales down, the integration density of transistors increases and most of the power is dissipated as leakage. Leakage power reduction is achieved in Static Random Access Memory (SRAM) cells by increasing the source voltage (source biasing) of the SRAM array. Another promising issue in nanoscaled devices is the process parameter variations. Due to these variations, higher … …Journal of Computer Science, Vol. 7, Issue 8 · 15 Jul 2011 · 6,509 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInter-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 accessEvery word in the titleEvaluation of Critical Clearing Time of Power System Equipped With a Series FACT DevicesPrechanon KumkratugProblem statement: The critical clearing time provides very important role of the robustness in power system. The Static Synchronous Series Compensator (SSSC) has been accepted to be equipped in series with modern power system. This study presents the method to evaluate the Critical Clearing Time (CCT) of the system equipped with a SSSC. Approach: The parameter on SSSC is modeled … …Journal of Computer Science, Vol. 7, Issue 6 · 14 Jun 2011 · 6,782 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNonlinear Control Design of Shunt Flexible AC Transmission System Devices for Damping Power System OscillationPrechanon KumkratugProblem statement: The disturbance in the complicated network of power system may cause in nonlinear response. Static Synchronous Compensator (STATCOM) is a power electronic based device that has the capability of controlling the line current. This study applies the STATCOM to decrease the over line current in power system during dynamic state. Approach: This study proposes the control strategy of … …Journal of Computer Science, Vol. 7, Issue 6 · 14 Jun 2011 · 6,602 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimal 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