Publications by Alain Sapin | EPFL Graph Search

Modeling, Simulation, and Test of a Three-Level Voltage-Source Inverter With Output LC Filter and Direct Torque Control

This paper presents the modeling, detailed simulation, and test of an efficient medium-voltage adjustable-speed drive. The system consists of a three-level neutral-point-clamped inverter supplied by a 12-pulse rectifier. To achieve a motor-friendly supply, ...

2007

12-Pulse LCI Synchronous Drive for a 20 MW Compressor - Modeling, Simulation and Measurements

Alain Sapin, Jean-Jacques Simond, Mai Tu Xuan, Roland Wetter

The current source thyristor inverter is still today a suitable choice for supplying high power adjustable speed drives for pumps or compressors. This paper presents a 12-pulse LCI (load commutated inverter) synchronous drive for a 20 MW compressor, it foc ...

2005

Issues in Mixed Signal Simulation of Power Drives

Alain Sapin, Jean-Jacques Simond, Philippe Allenbach

This paper descri ...

2002

20 MW Compressor LCI Drive: Modeling, Simulation and Measurements

Alain Sapin, Jean-Jacques Simond, Mai Tu Xuan, Roland Wetter

The LCI (Load commutated Inverter) is still today a suitable solution for supplying high power variable speed drive systems. The following main topics are described in this contribution: The modeling of a 20 MW LCI synchronous drive system for a compressio ...

2002

Analysis of Slip Energy Recovery Drives Behavior Using the Compex Torque Coefficient Method

Basile Kawkabani, Alain Sapin, Jean-Jacques Simond

The aim of the present paper is to extend the well-known complex torque coefficient method usually used for synchronous machine rotor oscillations, to a slip energy recovery induction motor drive. To illustrate the effectiveness of the proposed extension, ...

2002

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

François Avellan, Alain Sapin, Jean-Jacques Simond

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

Doubly-Fed Asynchronous Machine with 3-Level VSI cascade for Variable Speed Pump Storage

André Hodder, Alain Sapin, Jean-Jacques Simond

This paper deals with a fixed-frequency variable-speed motor/generator with 3-level VSI (Voltage Source Inverter) cascade. The 3-level VSI is applied to a DASM (Doubly-fed ASynchronous Machine) for large pump storage plants. The extension to 3 levels is th ...

2000

Modeling of Multi-Windings Phase Shifting Transformers for DC Supplies

Alain Sapin, Jean-Jacques Simond, Philippe Allenbach

This paper deals with the modeling of multi-windings transformers. Based on a real example, a modeling methodology is presented. This methodology is the original part of the paper. Application examples of multi-windings phase shifting transformers (18 and ...

2000

Logiciel modulaire pour la simulation et l'étude des systèmes d'entraînement et des réseaux électriques

Alain Sapin

EPFL1995