A Simple Control Method for a Switching Rectifier with Power Transistors

Resultado de la investigación: Article

6 Citas (Scopus)

Resumen

A very simple control method for a high-frequency switching rectifier with power transistors is presented. The converter uses six semiconductor switches with turn-off capability to connect directly the three-phase source to the load. Each semiconductor switch is composed by two power MOSFET transistors. The control method is based on the fictitious bipolar source concept. A two-level controller with hysteresis is used to control the load current. The converter accepts power flow in both directions, does not need large storage elements, works with good power factor, and can generate output frequencies higher than the source frequency, without affecting the quality of the output current. The control and logic circuits of the rectifier are very simple, due to the high controllability of the bidirectional switches. The performance of the converter is investigated experimentally in the four-quadrant speed control of a dc machine.

Idioma originalEnglish
Páginas (desde-hasta)367-372
Número de páginas6
PublicaciónIEEE Transactions on Power Electronics
Volumen2
N.º4
DOI
EstadoPublished - 1987

Huella dactilar

Semiconductor switches
Logic circuits
Power converters
Switching frequency
Speed control
Controllability
Hysteresis
Transistors
Switches
Controllers
Power transistors
Power MOSFET

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Citar esto

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AB - A very simple control method for a high-frequency switching rectifier with power transistors is presented. The converter uses six semiconductor switches with turn-off capability to connect directly the three-phase source to the load. Each semiconductor switch is composed by two power MOSFET transistors. The control method is based on the fictitious bipolar source concept. A two-level controller with hysteresis is used to control the load current. The converter accepts power flow in both directions, does not need large storage elements, works with good power factor, and can generate output frequencies higher than the source frequency, without affecting the quality of the output current. The control and logic circuits of the rectifier are very simple, due to the high controllability of the bidirectional switches. The performance of the converter is investigated experimentally in the four-quadrant speed control of a dc machine.

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