Publications de Alexander Schwery

Highly Flexible Indirect Modular Multilevel Converter for High Power Pumped Hydro Storage Plants

Alexander Schwery, Drazen Dujic, Miodrag Basic

2020

Modeling and control of large salient-pole synchronous hydro generators and stability issues in isolated production mode

Basile Kawkabani, Alexander Schwery, Christophe Nicolet

This paper presents the modeling, simulation and analysis of the dynamic behavior of a hydroelectric power plant of 2x343 MVA including hydraulic system, electrical installations, rotating inertias and control systems. First, the modeling of the electrical ...

Ieee2013

Stability study of a mixed islanded power network

François Avellan, Basile Kawkabani, Alexander Schwery, Jean-Jacques Simond

This paper presents the modeling, simulation and analysis of the dynamic behavior of a mixed power network of 2.78 GW including hydro, thermal and wind power plants. The modeling of each power plant is described. The set of parameters of the turbine speed ...

2010

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

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

Institute of Electrical and Electronics Engineers2010

Dynamical behaviour comparison between variable speed and synchronous machines with PSS

François Avellan, Basile Kawkabani, Alexander Schwery, Jean-Jacques Simond

2010

Benefits of Variable Speed Pumped storage Units in Mixed Islanded Power Network during Transient Operation

François Avellan, Basile Kawkabani, Alexander Schwery, Jean-Jacques Simond, Yves Pannatier

2009

Transient Behavior of variable speed pump-turbine units

François Avellan, Basile Kawkabani, Alexander Schwery, Jean-Jacques Simond, Christophe Nicolet, Yves Pannatier

This paper presents the modeling, simulation and analysis of the dynamic behavior of a fictitious 2x320 MW variable speed pump-turbine power plant including hydraulic system, electrical installations, rotating inertias and control systems. First, the model ...

International Association For Hydraulic Research2008

Double trouble

André Hodder, Alexander Schwery, Jean-Jacques Simond

This article presents the modeling, simulation, and practical application of a double-fed asynchronous motor-generator for pumped-storage plants equipped with a three-level VSI cascade. The problem of DC unbalance control is studied in this particular appl ...

2008

Transient Behavior of Variable Speed Pump-Turbine Units

François Avellan, Basile Kawkabani, Alexander Schwery, Jean-Jacques Simond, Christophe Nicolet, Yves Pannatier

2008

Large low-speed hydro-generators-unbalanced magnetic pulls and additional damper losses in eccentricity conditions

Alexander Schwery, Jean-Jacques Simond, Mai Tu Xuan, Stefan Keller

2007

Unbalanced DC-link voltage regulation in a back-to-back 3-level PWM converter for a doubly-fed induction motor/generator

André Hodder, Alexander Schwery, Jean-Jacques Simond

An unbalanced DC-link voltage regulation strategy is proposed for a three-level voltage source inverter used in the rotor cascade of a double-fed asynchronous motor-generator. The major problem in determining the presence of the unbalanced component is inv ...

2005

Contrôle vectoriel d'une machine asynchrone dans un référentiel orienté selon le flux statorique

Alexander Schwery

EPFL1999