Publication

A DSP based Control for a Symmetrical Three-Phase Two-Switch PFC-Power Supply for Variable Output Voltage

Alfred Rufer
1996
Conference Papers

Abstract

Power Factor Corrected rectifiers are new tendency in development of power supplies. The present paper proposes a new simplified topology for three-phase applications, with only two active switches and able to generate symetrical currents in the line. Power ciruit and DSP control circuit are presented. Complete system modelization and simulation result with closed loop operation are given, as well as results of an experimental verification.

Official source

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Alfred Rufer
1996
Conference Papers

Abstract

Official source

Related concepts (22)

Power supply

A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

Three-phase electric power

Three-phase electric power (abbreviated 3φ) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer power. Three-phase electrical power was developed in the 1880s by several people. In three-phase power, the voltage on each wire is 120 degrees phase shifted relative to each of the other wires.

Switched-mode power supply

A switched-mode power supply (switching-mode power supply, switch-mode power supply, switched power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a DC or AC source (often mains power, see AC adapter) to DC loads, such as a personal computer, while converting voltage and current characteristics.

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A DSP based Control for a Symmetrical Three-Phase Two-Switch PFC-Power Supply for Variable Output Voltage

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