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Ira Nagel

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Publications associées (13)

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Analog microelectronic emulation for dynamic power system computation

Ira Nagel

Power system dynamic simulators can be classified according to multiple criteria, including speed, precision, cost and modularity (topology, characteristics and model). Existing simulators are based on time-consuming numeric algorithms, which provide very ...

EPFL2013

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This paper presents an ultra-high speed hardware platform dedicated to power system dynamic (small signal) and transient (large signal) stability. It is based on an intrinsic parallel architecture which contains hybrid mixed-signal (analog and digital) cir ...

Ieee-Inst Electrical Electronics Engineers Inc2013

A 3D architecture platform dedicated to high-speed computation for power system

Maher Kayal, Laurent Fabre, Ira Nagel, Theodoros Kyriakidis, Guillaume Olivier Lanz, Denis Sallin

This paper presents an innovative 3D hardware architecture for power system dynamic and transient stability. Based on an intrinsic parallel architecture by means of mixedsignal circuits (analog and digital) it overcomes the speed of numerical simulators fo ...

2013

High-Speed Power System Transient Stability Simulation Using Highly Dedicated Hardware

Maher Kayal, François Krummenacher, Marc Pastre, Laurent Fabre, Ira Nagel

This paper presents a fully analog demonstrator based on power system emulation for high-speed power system stability analysis.Abenchmark using a fixed two-machine topology has been implemented. The characteristics of the emulated components (i.e., generat ...

Ieee-Inst Electrical Electronics Engineers Inc2013

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Presented is a transistor-level implementation of a floating and tunable CMOS active inductor. It is based on the classical gyrator-C topology and is enhanced by adding an internal offset reduction mechanism to guarantee functionality also for unbalanced D ...

2012

A mixed-signal platform dedicated to power system dynamic computation

Maher Kayal, Cédric Meinen, Laurent Fabre, Ira Nagel

has already been proven that analog emulation overcomes the speed limits of numerical simulators by means of a simple fixed-topology prototype. In order to enhance the modularity and the size of the emulated power system a dedicated platform based on a fie ...

IEEE2011

An ultra high-speed, mixed-signal emulator for solving power system dynamic equations

Maher Kayal, Laurent Fabre, Ira Nagel, Fabrizio Lo Conte, Guillaume Olivier Lanz

This paper focuses on a new pipelined processing unit architecture dedicated to mixed-signal power system emulation. Prior research in this field has proven that analog emulation overcomes the speed limits of numerical simulators with reliable accuracy. Th ...

IEEE2011

High-Speed Power System Stability Simulation Using Analog Computation

Maher Kayal, Laurent Fabre, Ira Nagel

This paper presents a microelectronic emulation approach for high-speed power system computation. First, the problems of existing power system simulators are detailed. This shows that microelectronic emulation is a possible solution for solving the speed p ...

2010

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This paper joins a series of papers dealing with high-speed power system emulators. It clarifies the last details about the system level of the AC emulation approach by analyzing and quantifying the systematic errors introduced during modeling. Thereby a n ...

2010

Microelectronic, high-speed data processing calculators for power system analysis: Comparison

Maher Kayal, Laurent Fabre, Ira Nagel

This paper highlights the increasing need for faster than real-time simulators of the electric power system and shows that microelectronic emulation is a very promising solution to overcoming speed problems of current numerical simulators. Research is focu ...

2010