نتایج جستجو برای: electric frequency control

تعداد نتایج: 1860062  

ژورنال: ارگونومی 2015
عزیزی, مهتاب, علی‌آبادی, محسن , گلمحمدی, رستم,

Introduction: In recent years, compact fluorescent lamps have been more widely used across the country as a means of optimizing energy consumption. Given the health consequences of lighting sources, the present study was conducted to investigate the intensity of electromagnetic fields emitted by common compact fluorescent lamps. Materials and Methods: The study examined 54 compact fluo...

In this paper, Plug-in Fuel Cell Electric Vehicle (PFCEV) is considered with dual power sources including Fuel Cell (FC) and battery Energy Storage. In order to respond to a transient power demand, usually supercapacitor energy storage device is combined with fuel cell to create a hybrid system with high energy density of fuel cell and the high power density of battery. In order to simulate the...

2009
Wilfried Weber Stefan Luzi Maria Karlsson Carlota Diaz Sanchez-Bustamante Urs Frey Andreas Hierlemann Martin Fussenegger

Electric signal processing has evolved to manage rapid information transfer in neuronal networks and muscular contraction in multicellular organisms and controls the most sophisticated man-built devices. Using a synthetic biology approach to assemble electronic parts with genetic control units engineered into mammalian cells, we designed an electric power-adjustable transcription control circui...

Journal: :CoRR 2015
Andrej Gajduk Vladimir Zdraveski Lasko Basnarkov Mirko Todorovski Ljupco Kocarev

Plug-in electrical vehicles (PEV) are capable of both grid-to-vehicle (G2V) and vehicle-to-grid (V2G) power transfer. The advantages of developing V2G include an additional revenue stream for cleaner vehicles, increased stability and reliability of the electric grid, lower electric system costs, and eventually, inexpensive storage and backup for renewable electricity. Here we show how smart con...

Esmaeelzadeh , Esmaeel , Tathiri , Gholamreza ,

  One of the ways, to control of the drag forces applying to the circular cylinder in the air flow, is control of the generated boundary layer around the cylinder, and one of the new and effective ways for control of the boundary layer, is using high voltage electrostatic field in fluid flow. In these conditions, because of the coupled relations between electric field and momentum equations, th...

2004
E J. A. Momoh X. Shen

A recursive fixed-point-type method is presented to find the optimal control of a statevariable model of the megawatt-frequency control problem of multiarea electric energy systems. The results give the numerical decomposition so that only low-order systems are involved in algebraic computations. This approach is conceptually simple and produces considerable savings of computation.

Journal: :journal of operation and automation in power engineering 2014
m. moazen m. sabahi

using an electric differential (ed) in electric vehicle has many advantages such as flexibility and direct torque control of the wheels during cornering and risky maneuvers. despite its reported successes and advantages, the ed has several problems limits its applicability, for instance, an increment of control loops and an increase of computational effort. in this paper, an electric differenti...

2015
Edoardo Serpelloni Manfredi Maggiore Christopher J. Damaren

This paper investigates a formation control problem for two space vehicles in the vicinity of the L2 libration point of the Sun-Earth/Moon system. The objective is to accurately regulate the relative position vector between the vehicles to a desired configuration, under tight tolerances. It is shown that the formation control problem is solvable using six constant thrust electric actuators requ...

2017
E. Fernández A. Paredes V. Sala L. Romeral

Silicon carbide (SiC) devices provide significant performance improvements in many aspects, including lower power dissipation, higher operating temperatures, and faster switching, compared to conventional Si devices. All these features helped increase the interest in the applications of these devices for electric drive systems. The inclusion of an impedance network to elevate DC voltage would i...

Abbass Aghajani Jalil Jamali Mehdi Shirani, Saeed Shabani

Electric motors are the largest consumer of world electric energy, consuming more than twice as much as lighting, the next largest consumer. Electric motors account for between 43 and 46% of all global electricity consumption approximately. They give rise to about 6 040 Mt of CO2 emissions. End‐users approximately spend USD 565 billion per year on electricity [1]. In recent years, increase in e...

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