Publications by Philippe Allenbach

Hydropower Plants Frequency Regulation Depending on Upper Reservoir Water Level

This paper presents a novel method of hydro power plant operation, based on the control of the injectors’ or wicked gates opening time as a function of the upper reservoir level. In this way, a faster power injection, depending on the current water level o ...

2019

Coordination of a Turbo-Generator protections through Power-System Simulation Software SIMSEN

Philippe Allenbach

The correct coordination of the electrical protections of a synchronous generators is a difficult task, especially those based on impedance. Usually, these protections are set according to the recommendations of the main standards and manufacturer guides. ...

Ieee2016

Forced response analysis of hydroelectric systems

François Avellan, Pedro Camilo de Oliveira e Silva, Christophe Nicolet, Philippe Allenbach, Basile Kawkabani, Sébastien Alligné, Antoine Béguin

At off-design operating points, Francis turbines develop cavitation vortex rope in the draft tube which may interact with the hydraulic system. Risk resonance assessment by means of eigenmodes computation of the system is usually performed. However, the sy ...

International Association For Hydraulic Research2014

A fully modular tool for small-signal stability analysis of hydroelectric systems

Philippe Allenbach, Pedro Camilo de Oliveira e Silva, Basile Kawkabani, Sébastien Alligné

In electrical systems, the small-signal stability analysis method is usually applied to synchronous machines by using the Park representation (d, q-components). This paper presents the generalization of a different approach for this method, based on a, b, ...

IEEE2014

HIL Simulation of a Mixed Islanded Power Network with External DSP Regulator

Philippe Allenbach, André Hodder, Basile Kawkabani, Sylvain Robert, György Atilla Bànyai, Nicolas Junod

The present paper deals with the development of a modular, flexible and structured block to block approach for the study of regulators by implementing the different blocks on a DSP (digital signal processor). The proposed low-cost approach has been applied ...

2012

Investigation of control strategies for variable speed pump-turbine units by using a simplified model of the converters

Jean-Jacques Simond, Philippe Allenbach, Basile Kawkabani, Yves Pannatier, Alexander Schwery

Institute of Electrical and Electronics Engineers2010

Influence of the Francis turbine location under vortex rope excitation on the hydraulic system stability

François Avellan, Jean-Jacques Simond, Philippe Allenbach, Christophe Nicolet, Basile Kawkabani, Sébastien Alligné

Hydroelectric power plants are known for their ability to cover variations of the consumption in electrical power networks. In order to follow this changing demand, hydraulic machines are subject to off-design operation. In that case, the swirling flow lea ...

2009

Dynamic Behavior of a 2 Variable Speed Pump-Turbine Power Plant

Jean-Jacques Simond, Philippe Allenbach, Basile Kawkabani, Yves Pannatier

This paper presents the modeling, simulation and analysis of the dynamic behavior of a fictitious 2times320 MW variable speed pump-turbine power plant including hydraulic system, electrical equipments, rotating inertias and control systems using the softwa ...

2008

Pumped Storage Units to Stabilize Mixed Islanded Power Network : A Transient Analysis

François Avellan, Jean-Jacques Simond, Philippe Allenbach, Basile Kawkabani

2008

Influence of the vortex rope location of a Francis Turbine on the hydraulic system stability

François Avellan, Jean-Jacques Simond, Philippe Allenbach, Basile Kawkabani, Christophe Nicolet, Sébastien Alligné

Hydroelectric power plants are known for their ability to cover variations of the consumption in electrical power networks. In order to follow this changing demand, hydraulic machines are subject to off-design operation. In that case, the swirling flow lea ...

International Association For Hydraulic Research2008