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Jean-Jacques Simond

Cette personne a quitté l’EPFL

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Publications associées (59)

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Modeling and Numerical Simulation of a Complete Hydrolelectric Production Site

François Avellan, Jean-Jacques Simond

For many years the EPFL Laboratory for Electrical Machines develops SIMSEN, a numerical software package for the simulation in transient and steady-state conditions of electrical power systems and adjustable speed drives, having an arbitrary topology. SIMS ...

2007

High-Order Modeling of Hydraulic Power Plant in Islanded Power Network

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

Numerical simulations of the transient operation of an islanded power network subject to load rejections are performed. The islanded power network case study consists of a 1-GW hydroelectric power plant featuring four generating units, a long penstock, and ...

IEEE Institute of Electrical and Electronics Engineers2007

Methodology for Risk Assessment of Part Load Resonance in Francis Turbine Power Plant

François Avellan, Jean-Jacques Simond, Christophe Nicolet, Philippe Allenbach

At low flow rate operation, Francis turbines feature a cavitating vortex rope in the draft tube resulting from the swirling flow of the runner outlet. The unsteady pressure field related to the precession of the vortex rope induces plane wave propagating i ...

2006

Turbine Speed Governor Parameters Validation in Islanded Production

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

The transient behavior of hydroelectric power plants is of high interest for ensuring stability of islanded electrical power networks. Therefore, it is suitable to determine and validate the set of parameters of a turbine speed governor using a realistic s ...

2007

A New tool for the simulation of dynamic behaviour of hydroelectric power plants

François Avellan, Jean-Jacques Simond, Alain Sapin

An analytical approach allowing modelling transient phenomena in pipes, valves, surge tank and Francis turbines based on impedance method is developed. These models are introduced in a software called “SIMSEN”, which simulates the behaviour of complex appl ...

2001

Investigation of transient overvoltages of low voltage induction motors due to IGBT-Inverter supply

Jean-Jacques Simond, Basile Kawkabani, Roland Wetter

The present paper investigates transient overvoltages on ac induction motors when connected through a cable of arbitrary length to IGBT-PWM inverters. Considering classical transmission line analysis, and traveling-wave analysis with zero initial charges o ...

2000

Unstable Operation of Francis Pump-Turbine at runaway: Rigid and Elastic Water Column Oscillation Modes

François Avellan, Jean-Jacques Simond, Basile Kawkabani, Sébastien Alligné

This paper presents a numerical simulation study of the transient behavior of a 2x340MW pump-turbine power plant, where the results show an unstable behavior at runaway. First, the modeling of hydraulic components based on equivalent schemes is presented. ...

2009

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

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

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

Jean-Jacques Simond, Basile Kawkabani, Philippe Allenbach, 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

Simulation tool linking hydroelectric production sites and electrical networks

François Avellan, Jean-Jacques Simond, Christophe Nicolet, Philippe Allenbach

Since many years the EPFL Laboratory of Electrical Machines develops SIMSEN, a numerical software package for the simulation of electrical power systems and adjustable speed drives, in transient and steady-state conditions, having an arbitrary topology. SI ...

2006

Modeling and Numerical Simulation of a Complete Hydroelectric Production Site

François Avellan, Jean-Jacques Simond, Christophe Nicolet, Philippe Allenbach

2007

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

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

2009

Combined Analytical-Numerical Approach for the Modeling and Analysis of Threephase Transformers

Jean-Jacques Simond, Basile Kawkabani, Gilles Rosselet

This paper deals with a combined analytical-numerical approach for the study of the steady-state and transient behaviour of three-phase transformers. This approach based on magnetic equivalent circuits, takes into account the nonlinear B-H curve. The nonli ...

2006

Power Supply of Long stator Linear Motors – Application to Multi Mobile System

Yves Perriard, Jean-Jacques Simond, Basile Kawkabani

In large cities, due to expensive land price, high-rise buildings are built, in which the space dedicated to the elevators is considerable and reduces the rented surfaces. To decrease these lost surfaces, a multi mobile system is proposed. It consists of s ...

2008

Improved Modeling of Three-Phase Transformer Analysis Based on Nonlinear B-H Curve and Taking Into Account Zero-sequence Flux

Jean-Jacques Simond, Basile Kawkabani

The present paper deals with a new approach for the study of the steady - state and transient behaviour of three- phase transformers. This approach based on magnetic equivalent circuit diagrams, takes into account the nonlinear B-H curve as well as zero-se ...

2006

Synchronous Generator No-Load Voltage Prediction using a Combined Analytical and FEM Approach

Jean-Jacques Simond, Mai Tu Xuan, Stefan Keller

A combined analytical and FEM method for prediction of the no-load voltage waveform of laminated salient pole synchronous generators is presented in this article. Very precise prediction of the no-load voltage, including saturation effects as well as the e ...

2005

Eigenvalues Analysis Applied to the Stability Study of a Variable Speed Pump Turbine Unit

Jean-Jacques Simond, Basile Kawkabani

This paper presents an eigenvalues analysis method for an induction machine model based on phase variables a, b, c. This approach is validated by comparison with ad, q approach and applied to a variable speed pump-turbine unit using a simplified model of t ...

2012

Double trouble

Jean-Jacques Simond, André Hodder, Alexander Schwery

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

Hardware-in-the-Loop Simulation Software for regulator tests and optimization

Jean-Jacques Simond, Philippe Allenbach, Antoine Béguin, Stefan Keller

This paper presents a real-time extension, called SIMSEN-RT, of the simulation software SIMSEN. SIMSEN-RT allows carrying out hardware-in-the-loop (HIL) simulations of power systems using hardware regulators. It can therefore be used to fine-tune regulator ...

2007

On the Hydroelectric Stability of an Islanded Power Network

François Avellan, Jean-Jacques Simond, Christophe Nicolet, Philippe Allenbach

Islanded power networks comprising a small number of large power plants are subject to perturbations leading to important transients, and, hence need high performance governors. The design of these governors requires a detailed model of the system. This is ...

2006