Predictive approach to increase efficiency and reduce switching losses on matrix converters

René Vargas, Ulrich Ammann, José Rodríguez

Resultado de la investigación: Article

145 Citas (Scopus)

Resumen

The matrix converter stands as an alternative in power conversion. It has no energy storage devices, performing the energy conversion by directly connecting input with output phases through bidirectional switches based on power semiconductors, allowing high-frequency operation. For this reason, it is known as the all-silicon power converter, featuring reduced size and weight. Forced commutations of the high number of semiconductors cause switching losses that reduce the efficiency of the system and imply the use of large heat sinks. This paper presents a novel method to reduce switching losses based on predictive control. The idea is to predict switching losses for every valid switching state of the converter, if applied during the next sampling time, and then, select the optimum state based on an evaluation criterion. The proposed strategy was experimentally tested on an 18-kVA matrix converter driving an 11-kW induction machine, reducing energy losses and increasing efficiency up to 3% compared to the basic strategy. As a consequence, the converter misuses less energy and requires smaller heat sinks.

Idioma originalEnglish
Páginas (desde-hasta)894-902
Número de páginas9
PublicaciónIEEE Transactions on Power Electronics
Volumen24
N.º4
DOI
EstadoPublished - 26 feb 2009

Huella dactilar

Heat sinks
Semiconductor materials
Electric commutation
Power converters
Energy conversion
Energy storage
Energy dissipation
Switches
Sampling
Silicon
Matrix converters

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Citar esto

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abstract = "The matrix converter stands as an alternative in power conversion. It has no energy storage devices, performing the energy conversion by directly connecting input with output phases through bidirectional switches based on power semiconductors, allowing high-frequency operation. For this reason, it is known as the all-silicon power converter, featuring reduced size and weight. Forced commutations of the high number of semiconductors cause switching losses that reduce the efficiency of the system and imply the use of large heat sinks. This paper presents a novel method to reduce switching losses based on predictive control. The idea is to predict switching losses for every valid switching state of the converter, if applied during the next sampling time, and then, select the optimum state based on an evaluation criterion. The proposed strategy was experimentally tested on an 18-kVA matrix converter driving an 11-kW induction machine, reducing energy losses and increasing efficiency up to 3{\%} compared to the basic strategy. As a consequence, the converter misuses less energy and requires smaller heat sinks.",
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Predictive approach to increase efficiency and reduce switching losses on matrix converters. / Vargas, René; Ammann, Ulrich; Rodríguez, José.

En: IEEE Transactions on Power Electronics, Vol. 24, N.º 4, 26.02.2009, p. 894-902.

Resultado de la investigación: Article

TY - JOUR

T1 - Predictive approach to increase efficiency and reduce switching losses on matrix converters

AU - Vargas, René

AU - Ammann, Ulrich

AU - Rodríguez, José

PY - 2009/2/26

Y1 - 2009/2/26

N2 - The matrix converter stands as an alternative in power conversion. It has no energy storage devices, performing the energy conversion by directly connecting input with output phases through bidirectional switches based on power semiconductors, allowing high-frequency operation. For this reason, it is known as the all-silicon power converter, featuring reduced size and weight. Forced commutations of the high number of semiconductors cause switching losses that reduce the efficiency of the system and imply the use of large heat sinks. This paper presents a novel method to reduce switching losses based on predictive control. The idea is to predict switching losses for every valid switching state of the converter, if applied during the next sampling time, and then, select the optimum state based on an evaluation criterion. The proposed strategy was experimentally tested on an 18-kVA matrix converter driving an 11-kW induction machine, reducing energy losses and increasing efficiency up to 3% compared to the basic strategy. As a consequence, the converter misuses less energy and requires smaller heat sinks.

AB - The matrix converter stands as an alternative in power conversion. It has no energy storage devices, performing the energy conversion by directly connecting input with output phases through bidirectional switches based on power semiconductors, allowing high-frequency operation. For this reason, it is known as the all-silicon power converter, featuring reduced size and weight. Forced commutations of the high number of semiconductors cause switching losses that reduce the efficiency of the system and imply the use of large heat sinks. This paper presents a novel method to reduce switching losses based on predictive control. The idea is to predict switching losses for every valid switching state of the converter, if applied during the next sampling time, and then, select the optimum state based on an evaluation criterion. The proposed strategy was experimentally tested on an 18-kVA matrix converter driving an 11-kW induction machine, reducing energy losses and increasing efficiency up to 3% compared to the basic strategy. As a consequence, the converter misuses less energy and requires smaller heat sinks.

KW - Efficiency

KW - Matrix converter (MC)

KW - Power conversion

KW - Predictive control

KW - Switching losses

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