نتایج جستجو برای: power supply quality

تعداد نتایج: 1331956  

2011
M. Rajaram H. Ezoji A. Sheikholeslami M. Tabasi

Power quality is one of major concerns in the present era. It has become important, especially, with the introduction of sophisticated devices, whose performance is very sensitive to the quality of power supply. Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure or mis-operation of end user equipments. One of the major prob...

2014
A. Apte

The harmonic currents generated by the modern power supply equipment cause power system heating and also add to user power bills. Personal computers are the major equipments which use the modern power supply ie switched mode power supply (SMPS).These SMPS draw non-sinusoidal currents from the supply which results in generation of harmonics. Power quality of the distribution network is been dist...

2013
M. V. MAKWANA

The widespread use of Power Electronics based equipment has produced a significant impact on quality of electric power supply. Conventional power quality mitigation equipment is providing to be inadequate for an increasing number of applications. One modern and very promising solution that deals with both load current and supply voltage imperfections is the Unified Power Quality Conditioner (UP...

2014
G. L. Prashanthi K. V. Prasad

With the electric industry undergoing change, increased attention is being focused on power supply reliability and power quality. Power providers and users alike are concerned about reliable power, whether the focus is on interruptions and disturbances or extended outages. Monitoring can provide information about power flow and demand and help to identify the cause of power system disturbances....

A. Dastfan, F. Behrangi,

A conventional high power DC power supply systems consist of a three-phase diode rectifier followed by a high frequency converter to supply loads at regulated DC voltage. These rectifiers draw significant harmonic currents from the utility, resulting in poor input power factor. In this paper, a DC power supply based on dual-bridge matrix converter (DBMC) with reduced number of switches is p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

2013
Meha Sharma

Power Quality is one of the primary concerns of the utilities, since lack of quality in power may cause malfunctions, instability, and short lifetime and so on. The efficiency and sustainability of a power system is highly dependent on the maintenance of good quality of power supply. Conventional Methods have been used to analyze the transient effects but found to be high resource consuming und...

Journal: :International Journal of Integrated Engineering 2022

This paper presents a heuristic technique for improving the voltage profile and reducing power loss in distribution network. These components are to be maintained at certain standard boost electricity supply of The shunt capacitor placement is applied achieve sustainable electric supply. issue has been major threat A network expected operate level meet consumers’ energy demand. Power flow studi...

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