Publications by Guillaume Olivier Lanz

Electronic solutions for power system emulation

Nowadays electric power systems are subject to continuous changes and the needs in the power generation and delivery service are constantly increasing, with a higher complexity of a progressively more distributed network. Because the impact of a failure ca ...

EPFL2017

Mixed-signal power system emulator extension to solve unbalanced fault transient stability analysis

Sidi-Rachid Cherkaoui, Maher Kayal, Guillaume Olivier Lanz, Theodoros Kyriakidis

This paper presents the extension of a platform originally devoted to symmetrical transient stability analysis, into the domain of unbalanced faults. The aim of this solver is to increase the speed of dynamic stability assessment for power systems. It is b ...

IEEE2014

Pipelined Numerical Integration on Reduced Accuracy Architectures for Power System Transient Simulations

Sidi-Rachid Cherkaoui, Maher Kayal, Guillaume Olivier Lanz, Theodoros Kyriakidis, Georgios Lilis

This work concerns a dedicated mixed-signal power system dynamic simulator. The equations that describe the behavior of a power system can be decoupled in a large linear system that is handled by the analog part of the hardware, and a set of differential e ...

IEEE2014

On the effect of integration algorithms on reduced accuracy computational architectures

Sidi-Rachid Cherkaoui, Maher Kayal, Guillaume Olivier Lanz, Theodoros Kyriakidis, Georgios Lilis

2014

An Ultra-High Speed Emulator Dedicated to Power System Dynamics Computation Based on a Mixed-Signal Hardware Platform

Sidi-Rachid Cherkaoui, Maher Kayal, Laurent Fabre, Ira Nagel, Guillaume Olivier Lanz, Denis Sallin, Theodoros Kyriakidis

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 Institute of Electrical and Electronics Engineers2013

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

Sidi-Rachid Cherkaoui, Maher Kayal, Laurent Fabre, Ira Nagel, Guillaume Olivier Lanz, Denis Sallin, Theodoros Kyriakidis

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

A Transient Stability Assessment Method using Post-Fault Trajectories

Sidi-Rachid Cherkaoui, Maher Kayal, Guillaume Olivier Lanz, Theodoros Kyriakidis

Transient Stability Assessment (TSA) is the process in which the stability of a system is characterized qualitatively or quantitatively. The TSA algorithm presented in this paper is derived from the well-established Single Machine Equivalent (SIME) method ...

2013

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

Sidi-Rachid Cherkaoui, Maher Kayal, Fabrizio Lo Conte, Laurent Fabre, Ira Nagel, 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