نتایج جستجو برای: electric power transit
تعداد نتایج: 618876 فیلتر نتایج به سال:
در این پروژه، با تعیین میزان تولید منابع پراکنده در کنار کنترل ولتاژ/توان راکتیو و تجدید آرایش سیستم برای سطوح بار مختلف، بهره برداری از سیستم توزیع برای تحقق اهدافی چون کاهش تلفات انرژی سیستم، بهبود شاخص پایداری ولتاژ و تقسیم مناسب جریان توان بین فیدرها انجام می شود. به این منظور یک مسیله بهینه سازی تعریف و با توجه به تعداد فراوان متغیرهای کنترلی و حالت گسسته آن ها، الگوریتم حلی بر مبنای روش ج...
load management and cost optimization are among the important factors in trigenerationsystems and combined cooling, heating and power (cchp) systems. in this study, an innovative cchpsystem uses a gas turbine as the prime mover and has a heat recovery steam generator (hrsg) in addition toan auxiliary boiler, electric and absorption chillers. the system is tied with the bulk electric grid; to ex...
this paper presents a formulation of unit commitment for thermal units integrated with wind and solar energy systems and electrical vehicles with emphasizing on mixed integer nonlinear programming (minlp). the renewable energy resources are included in this model due to their low electricity cost and positive effect on environment. as well as, coordinated charging strategy of electrical vehicle...
This paper investigates electric vehicle benefits and costs. Similar analysis could be applied to other alternative fuels. This study evaluates various types of electric vehicles. “Conventional performance” electric cars are intended to substitute for petroleum powered vehicles. However, for the foreseeable future they will fail to do this; electric vehicles offer significantly less performance...
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Flexible AC Transmission Systems (FACTS) devices have shown satisfactory performance in alleviating the problems of electrical transmission systems. Optimal FACTS allocation problem, which includes finding optimal type and location of these devices, have been widely studied by researchers for improving variety of power system technical parameters. In this paper, a DIgSILENT-based Discrete Parti...
Abstract Because electric vehicles have many advantages such as low carbon, environmental protection, and cost compared with fuel vehicles, developed rapidly in recent years, which will lead to large-scale impact load. In this paper, the vehicle is regarded an energy storage device, a multi-energy VPP thermal scheduling model including established, strategy for participate power system proposed...
Research Needs: Greenhouse gas (GHG) emissions from the transportation sector account for about 27% of the total GHG emissions in the United States. Due to increased travel demand and limited improvement in fuel efficiency, the GHG emissions from transportation have increased by 16% since 1990 (USEPA, 2015). About 80% of transit buses are currently powered by diesel engines, which are a primary...
This study investigated the heat problems that occur during the operation of power batteries, especially thermal runaway, which usually take place in high temperature environments. The study was conducted on a ternary polymer lithium-ion battery. In addition, a lumped parameter thermal model was established to analyze the thermal behavior of the electric bus battery system under the operation c...
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