Concept

Electric utility

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Equilibrium Prices for Monetary Utility Functions

Damir Filipovic

This paper provides sufficient and necessary conditions for the existence of equilibrium pricing rules for monetary utility functions under convex consumption constraints. These utility functions are characterized by the assumption of a fully fungible nume ...

World Scientific Publishing2008

Today’s and Tomorrow’s Meaning of Power Electronics within the Grid Interconnection

Alfred Rufer

Power Electronics is expected to become a major component in the field of the global electric power management, as it is already today within most of electric power applications like variable speed drives or other conventional user applications. From the e ...

2007

Capturing the hydrokinetic energy of the Rhone River

Anton Schleiss, Giovanni De Cesare, Hanane Moukhliss

In the current economic situation regarding electric generation and conservation of the environment, it is essential to develop sustainable technologies. From this point of view, hydropower is an excellent resource with a consequently high value. The syste ...

2006

Design of Portable Power Generation Systems for Variable Power Demand

Benoît Chachuat

The performance of portable power generation systems is a major limitation on the freedom and amount of utility provided by portable electronic devices. In that respect, fuel cells are a promising alternative to current state-of-the-art batteries as there ...

2006

Photovoltaic performance and long-term stability of dye-sensitized mesoscopic solar cells

Michael Graetzel

The efficiency of electric power generation by dye-sensitized mesoscopic photovoltaic cells has been progressing steadily over the last years reaching now 11% in full sunlight. An important question for practical applications concerns the stability of thes ...

2006

A feasibility study of an auxiliary power unit based on a PEM fuel cell for on-board applications

Mario Paolone

Proton exchange membrane (PEM) fuel cells show characteristics of high power density, low operating temperature, and fast start-up capability, which make them potentially suitable to replace conventional power sources (e.g., internal combustion engines) as ...

2006

Sensor networks under regulatory power constraints

Michael Christoph Gastpar

Power constraints are often motivated by the physical limitations of the transmitting device (battery power etc.). However, a different source of power constraints is the regulatory framework imposed by authorities such as the United States FCC. Specifical ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2005

When Power Adaptation is Useless or Harmful

Jean-Yves Le Boudec

We consider the design of optimal strategies for joint power adaptation, rate adaptation and scheduling in a multi-hop wireless network. Most existing strategies for ad-hoc networks control either power and scheduling, or rates and scheduling, but not the ...

2004

Application of AI techniques to monitoring of transformers and optimal allocation of FACTS in power systems

An analysis of unsupervised neural network models and the use of self-organizing maps in the real-time monitoring of power transformers was carried out. The application of genetic algorithms in a complex optimization problem, the allocation and parameters ...

2002

Open loop and closed loop spectral frequency active filtering

Alfred Rufer

This paper proposes two frequency based methods for parallel active filtering of current harmonics in utility grids. Active filter (AF) reference prediction and AF current control are the two key-points to obtain high performances. This paper deals with th ...

2002