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133 results for “power quality”
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Research ArticleOpen accessPhrase in the titleDesign of a Synchronous Reference Frame Controlled Fuzzy Logic Based Distribution Static Compensator to Enhance Distribution System Power QualityRekha Sampath, Lokesh Mallaiah, Ashwini A V et al.The demand for enhanced power quality in distribution systems has increased due to the widespread utilization of various AC loads, including rectifiers, inductive loads, and variable speed drives. When these nonlinear loads are combined with renewable energy sources, harmonics are introduced in the system. These can affect the way other equipment in the network works and leave the system vulnerable … …Journal of Computer Science, Vol. 22, Issue 2 · 27 Feb 2026 · 1,710 accessesView PDFCite
Review ArticleOpen accessPhrase in the titleReview of Signal Processing Techniques for Detection of Power Quality EventsAbhijith Augustine, Ruban Deva Prakash, Rajy Xavier, Mareeta Cheriyan ParasseryThe challenging process industry requires true power for its smooth functioning and here comes the importance of good power or power. The term Power Quality (PQ) aims at supplying true power to the process. The scope of the power quality increased with the introduction of newly designed sophisticated devices like computers and microcontrollers. The performances of these devices are extremely … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 2 · 30 Apr 2016 · 8,493 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleIMPLEMENTATION OF SPACE VECTOR PULSE WIDTH MODULATION TECHNIQUE WITH GENETIC ALGORITHM TO OPTIMIZE UNIFIED POWER QUALITY CONDITIONERM. Shankar, S. Monisha, H. Shesna et al.This study proposes a novel control design of Unified Power Quality Conditioner (UPQC). This design is enabled by a control framework that employs Genetic Algorithm which determines optimum points and angle for filtering and Space Vector Pulse Width Modulation Technique (SVPWM) to offer significant flexibility to optimize waveform. In addition the same framework integrates the major functions of the UPQC … …American Journal of Applied Sciences, Vol. 11, Issue 1 · 14 Dec 2013 · 6,711 accessesView PDFCite
Research ArticleOpen accessPhrase 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 · 7,232 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleDevelopment 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 PDFCite
Research ArticleOpen accessPhrase in the titleAn Assessment of the Electric Power Quality and Electrical Installation Impacts on Medical Electrical Equipment Operations at Health Care FacilitiesMário César Giacco Ramos, Carlos Márcio Vieira TahanProblem statement: Medical electrical equipments at health care facilities presented malfunction and wrong medical information due to poor electric power quality and to inadequate electrical Installations. Some equipment such as X-ray, computerized axial tomography and magnetic resonance imaging are considered as polluting ones due to their high amount of harmonics and voltage transients produced on the electrical power supply when … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,514 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePower Quality Improvement Using DVRC. Benachaiba, B. FerdiVoltage sags and swells in the medium and low voltage distribution grid are considered to be the most frequent type of power quality problems based on recent power quality studies. Their impact on sensitive loads is severe. The impact ranges from load disruptions to substantial economic losses up to millions of dollars. Different solutions have been developed to protect sensitive … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 8,040 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePower Quality Improvement Using a Sliding Mode Control of a Series Active FilterTheerayuth ChatchanayuenyongA sliding mode controller (SMC) for a three-phase series active filter was proposed to compensate voltage unbalances, suppress voltage sags and swells and hence improve the power quality of a three-phase ac system. The voltage unbalance compensation and regulation is only based on the positive sequence component decomposition of the supply voltage that is then adjusted to a rated value … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 6,584 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleA Novel Detection and Classification Algorithm for Power Quality Disturbances using WaveletsC. Sharmeela, M. R. Mohan, G. Uma, J. BaskaranThis study presents a novel method to detect and classify power quality disturbances using wavelets. The proposed algorithm uses different wavelets each for a particular class of disturbance. The method uses wavelet filter banks in an effective way and does multiple filtering to detect the disturbances. A qualitative comparison of results shows the advantages and drawbacks of each wavelet when … …American Journal of Applied Sciences, Vol. 3, Issue 10 · 31 Oct 2006 · 6,632 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePOWER QUALITY DIAGNOSIS IN DISTRIBUTION NETWORK USING WAVELET TRANSFORMH. H. Goh, H. L. Ting, Q. S. Chua et al.Power quality is one of the most concerns to the electric power suppliers, equipment manufacturers and the users of various electrical and electronic equipments. This paper presents the use of a continuous wavelet transform to detect and analyse voltage sags and swells. Characteristics which include duration and magnitude of the investigated signals are measured. Unlike other approaches where the detection … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 26 Dec 2013 · 7,061 accessesView PDFCite