EPE Association: NORpie 2004 - Topic 07: Motor Drives

NORpie 2004 - Topic 07: Motor Drives
You are here: EPE Documents > 05 - EPE Supported Conference Proceedings > NORpie - Proceedings > NORpie 2004 > NORpie 2004 - Topic 07: Motor Drives

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   A Vector Modulated Three-Phase Four-Quadrant Rectifier - Application to a DC Motor Drive
By M. Jussila; M. Salo; L. Kähkönen; H. Tuusa [View]
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Abstract: This paper introduces a theory for a space vector modulation of a three-phase four-quadrant PWM rectifier (FQR). The presented vector modulation method is simple to realize with a microcontroller and it replaces the conventional modulation methods based on the analog technology. The FQR may be used to supply directly a dc load, e.g. a dc machine. The vector modulated FQR is tested in simulations supplying a 4.5 kW dc motor. The simulations show the benefits of the vector modulated FQR against thyristor converters: the supply currents are sinusoidal and the displacement power factor of the supply can be controlled. Furthermore the load current is smooth.

   Vector Control of an Induction Motor Fed by a PWM Inverter with Output LC filter
By J. Salomäki; J. Luomi [View]
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Abstract: This paper introduces a control method for an induction motor that is supplied by a PWM voltage source inverter through an LC filter. A full-order observer is used to estimate the system states, and no additional voltage or current measurements are needed for the vector control of the motor. Simulation and experimental results are presented confirming the functionality of the proposed control method.

   A DSP-based Discrete Space Vector Modulation Direct Torque Control of Sensorless Induction Machines
By F. Khoucha; K. Marouani; A. Kheloui; K. Aliouane [View]
[Download]

Abstract: In this paper, we present a Direct Torque Control scheme of an induction motor operating without speed sensor. The estimation of the stator flux and the rotor speed is performed by an adaptive observer. In order to reduce the torque, flux, current and speed ripple a Discrete Space Vector Modulation (DSVM-DTC) strategy is implemented using a DSP-based hardware. To illustrate the performances of this control scheme, experimental results are presented.

   Stable and Passive Traction Drives
By M. Jansson; A. Danielsson; J. Galic; K. Pietiläinen; L. Harnefors [View]
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Abstract: In this paper, a control structure for stable and passive traction drives is developed and analyzed. We show that a passive system for almost the entire desired frequency region is gained through improved current control and feed-forward. The control dynamics, with respect to the line current and the dclink voltage, are similar to that of the original, so-called reference system.

NORpie 2004 - Topic 07: Motor Drives
You are here: EPE Documents > 05 - EPE Supported Conference Proceedings > NORpie - Proceedings > NORpie 2004 > NORpie 2004 - Topic 07: Motor Drives
	[return to parent folder]

	A Vector Modulated Three-Phase Four-Quadrant Rectifier - Application to a DC Motor Drive By M. Jussila; M. Salo; L. Kähkönen; H. Tuusa	[View] [Download]
Abstract: This paper introduces a theory for a space vector modulation of a three-phase four-quadrant PWM rectifier (FQR). The presented vector modulation method is simple to realize with a microcontroller and it replaces the conventional modulation methods based on the analog technology. The FQR may be used to supply directly a dc load, e.g. a dc machine. The vector modulated FQR is tested in simulations supplying a 4.5 kW dc motor. The simulations show the benefits of the vector modulated FQR against thyristor converters: the supply currents are sinusoidal and the displacement power factor of the supply can be controlled. Furthermore the load current is smooth.

	Vector Control of an Induction Motor Fed by a PWM Inverter with Output LC filter By J. Salomäki; J. Luomi	[View] [Download]
Abstract: This paper introduces a control method for an induction motor that is supplied by a PWM voltage source inverter through an LC filter. A full-order observer is used to estimate the system states, and no additional voltage or current measurements are needed for the vector control of the motor. Simulation and experimental results are presented confirming the functionality of the proposed control method.

	A DSP-based Discrete Space Vector Modulation Direct Torque Control of Sensorless Induction Machines By F. Khoucha; K. Marouani; A. Kheloui; K. Aliouane	[View] [Download]
Abstract: In this paper, we present a Direct Torque Control scheme of an induction motor operating without speed sensor. The estimation of the stator flux and the rotor speed is performed by an adaptive observer. In order to reduce the torque, flux, current and speed ripple a Discrete Space Vector Modulation (DSVM-DTC) strategy is implemented using a DSP-based hardware. To illustrate the performances of this control scheme, experimental results are presented.

	Stable and Passive Traction Drives By M. Jansson; A. Danielsson; J. Galic; K. Pietiläinen; L. Harnefors	[View] [Download]
Abstract: In this paper, a control structure for stable and passive traction drives is developed and analyzed. We show that a passive system for almost the entire desired frequency region is gained through improved current control and feed-forward. The control dynamics, with respect to the line current and the dclink voltage, are similar to that of the original, so-called reference system.