نتایج جستجو برای: electric power utilization

تعداد نتایج: 712730  

2009
S. Dehghan B. Kiani A. Kazemi A. Parizad

The utilization of renewable energy sources in electric power systems is increasing quickly because of public apprehensions for unpleasant environmental impacts and increase in the energy costs involved with the use of conventional energy sources. Despite the application of these energy sources can considerably diminish the system fuel costs, they can also have significant influence on the syst...

پایان نامه :وزارت علوم، تحقیقات و فناوری - موسسه آموزش عالی مهر البرز - دانشکده مدیریت 1391

پژوهش حاضر به بررسی رابطه بین تسهیم دانش و چابکی سازمانی در شرکت توزیع برق استان اصفهان پرداخته است . ابزار سنجش در این پژوهش پرسشنامه می باشد . به منظور سنجش متغیر تسهیم دانش از پرسشنامه وانگ و وانگ و جهت سنجش چابکی سازمانی از پرسشنامه چاربونیر استفاده شده است . هدف پژوهش حاضر تحلیل رابطه میان تسهیم دانش و چابکی سازمانی از دید کارکنان شرکت توزیع برق استان اصفهان می باشد . جامعه آماری این پژوه...

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....

2007
Zugang Liu Anna Nagurney

Abstract: In this paper, we develop a novel electric power supply chain network model with fuel supply markets that captures both the economic network transactions in energy supply markets and the physical network transmission constraints in the electric power network. The theoretical derivation and analysis are done using the theory of variational inequalities. We then apply the model to a spe...

2013
Ximing Wang Hongwen He Fengchun Sun Xiaokun Sun

Plug-in hybrid electric vehicles (PHEVs) have a larger battery and can replace a certain amount of conventional fossil fuels with grid electricity, which differs from the traditional hybrid electric vehicles (HEVs). The application of the onboard electrical energy significantly influences the energy utilization efficiency and thus impacts the fuel economy. In this paper, the basic PHEV operatio...

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...

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...

2018
Yi Gao

The utilization of the wind to generate electrical energy is increasing rapidly throughout the world. By the end of 2009, the worldwide installed wind capacity reached 159,213 MW (World Wind Energy Report 2009). Wind turbine generators can be added and are being added in large grid connected electric power systems. Wind power, however, behaves quite differently than conventional electric power ...

The design of energy management strategy is one of the main challenges in the development of fuel cell electric vehicles. The proposed strategy should be well responsive to provide demanded power of fuel cell vehicle for motion, acceleration, and different driving conditions, resulting in reduced fuel consumption, increased lifetime of power sources and increased overall fuel efficiency. The pu...

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