Concept

Alternator

Related publications (78)

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

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

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

Design of a new air-cored current transformer: analytical modeling and experimental validation

Daniel Porto, José-Luis Bermudez

The paper describes a modeling tool for the design of a new air-cored current transformer called PRiME (planar Rogowski current measurement) designed on a printed-circuit board (PCB) with the coil made of the PCB printed copper layers. The PRiME technology ...

2004

Reducing the cogging torque in brushless DC motors by using conformal mappings

Yves Perriard, Marcel Jufer, Miroslav Markovic

We present an exact model for determining the cogging torque in a brushless DC (BLDC) motor. It is based on the conformal mapping (CM) method, by which the motor configuration is transformed to a configuration where the magnetic field can be determined. Th ...

2004

Fully automated parameter identification for synchronous machines.

Jean-Jacques Simond, Mai Tu Xuan, Alexander Schwery

The article presents a fully automated identification method for the determination of the sub-subtransient, subtransient and transient characteristic parameters of large synchronous machines. The software allows for an identification of the parameters base ...

2003

12-Pulse LCI synchronous drive for a 20 MW compressor : modeling, simulation and measurements

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

Abstract – 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 compres ...

IEEE PES2003

Steady state Kalman filtering for sensorless control of hybrid stepper motors

Yves Perriard, Jan Persson

Extended Kalman filtering techniques have been successfully used as sensorless control schemes on many different types of synchronous motors. One big disadvantage of the extended Kalman filtering technique is the large computational cost. Even with today's ...

IEEE2003

Extension of the Complex Torque Coefficient Method for Synchronous Generators to Auxiliary Devices in Electrical Networks.

Basile Kawkabani

The aim of the proposed paper is to extend the well known complex torque coefficient method for synchronous machine rotor oscillations, to auxiliary devices (voltage regulators, power system stabilizers (PSS), ...) in electrical networks. To illustrate the ...

2001

Implementation of a lowcost sinusoidal supply for BLDC motor

Yves Perriard, Frédéric Bonvin

In many applications, industry has tried to develop sinusoidal supply for brushless DC (BLDC) motors. This paper describes a method that still keeps a simple 2 phases-on sensorless method and achieves sinusoidal supply, which is needed to avoid speed oscil ...

EPE Assoc2001

Printed circuit board integrated fluxgate sensor

Martinus Gijs

We have developed a cheap and simple trilayer printed circuit board (PCB)-based technology, adapted for the fabrication of fluxgate magnetic sensors. The two outer layers of the PCB stack comprise the electrical windings of the fluxgate, while the inner la ...

2000

Modélisation et réglage d'un entraînement à haute performance par un moteur réluctant

Michel Girardin

Usually, each phase of the direct reluctance motor is fed separately by its own inverter producing a squarewave phase current depending on the rotor position. In the present work, a star-connection of the three stator phases is used and the direct reluctan ...

EPFL2000

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.