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A four-motor drive supplied from a triple three-phase voltage source inverter

Related publications (78)

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Torque Measurement Methods for Very High Speed Synchronous Motors

Yves Perriard, Pierre-Daniel Pfister

The article presents two different torque measurement methods for very high speed synchronous motors: one uses an eddy current brake, and the other is an inertial method. The article also presents a ball bearings friction torque measurement method designed ...

2008

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

A Five-Phase Two-Motor Centre-Driven Winder with Series-Connected Motors

Drazen Dujic

Application of power electronics in variable speed electric drives enables utilization of ac machines with a phase number higher than three. It then becomes possible to use the additional degrees of freedom, available in multi-phase systems, to control oth ...

IEEE2007

A two-motor centre-driven winder drive fed by a five-leg voltage source inverter

Drazen Dujic

Recent research has shown that it is possible to independently control two three-phase induction machines while supplying them via a single five-leg voltage source inverter (VSI). In such a two-motor drive system one phase of each motor is connected to a c ...

IEEE2007

A Novel Five-leg Inverter PWM Technique for Two-Motor Centre-Driven Winders

Drazen Dujic

Two three-phase motors can be controlled independently using a five-leg inverter as the supply, with one leg being common to both machines. Major shortcoming of this topology for general applications is the need to double the DC bus voltage in order to ach ...

IEEE2007

Self-sensing methods to drive micro-machines

Yves Perriard, Omar Scaglione, Jan Persson

Synchronous motors require sensors in order to control these devices in speed and/or position. Basically, the auto-commutation needs 3 sensors for a 3-phase type actuator. In micro-motors, as there is no more room to place the sensors, self-sensing approac ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2007

Quadrotor Using Minimal Sensing For Autonomous Indoor Flight

Dario Floreano, Jean-Christophe Zufferey, Timothy Stirling, James Roberts

This paper presents a Miniature Aerial Vehicle (MAV) capable of hands-off autonomous operation within indoor environments. Our prototype is a Quadrotor weighing approximately 600g, with a diameter of 550mm, which carries the necessary electronics for stabi ...

2007

Comparative study and selection criteria of linear motors

Samuel Chevailler

Initially, linear motors have been particularly dedicated to transportation systems. Nowadays, linear motors are meant to replace a system using a rotating motor and a transmission to realize a linear movement. With linear motors the performances increase ...

EPFL2006

A Numerical Test Platform for Large Synchronous Machines also useful as a Design Optimization Tool.

Jean-Jacques Simond, Mai Tu Xuan

This paper deals with the determination of large synchronous machine characteristic quantities using an extended 2D-finite element method and based on the knowledge of the geometry and of the physical properties of the electrical and magnetic circuits of t ...

2006

A contribution to energy saving in induction motors

Electric motors consume over half of the electrical energy produced by power stations, almost the three-quarters of the electrical consumption in industry and almost the half of commercial electrical consumption in developed countries. Motors are by far th ...

EPFL2005