Publication

A single-phase rectifier with reduced current ripple and power factor correction

Alfred Rufer
1997
Conference Papers

Abstract

In this paper, a high quality single-phase rectifier with reduced ripple of the input current is proposed. the chosen solution has the main advantage of reducing cither the current ripple or the operating switching frequency, by a compensation effect of two imbricated channels, pulsing in opposition phase. The new rectifier topology is presented, with an appropiate control scheme. Simulation of the behaviour with control circuits are presented, together with experimental results.

Official source

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Alfred Rufer
1997
Conference Papers

Abstract

Official source

Related concepts (25)

Power inverter

A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.

Ripple (electrical)

Ripple (specifically ripple voltage) in electronics is the residual periodic variation of the DC voltage within a power supply which has been derived from an alternating current (AC) source. This ripple is due to incomplete suppression of the alternating waveform after rectification. Ripple voltage originates as the output of a rectifier or from generation and commutation of DC power. Ripple (specifically ripple current or surge current) may also refer to the pulsed current consumption of non-linear devices like capacitor-input rectifiers.

Variable-frequency drive

A variable-frequency drive (VFD, or adjustable-frequency drives, adjustable-speed drives), variable-speed drives, AC drives, micro drives, inverter drives, or drives) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the input electricity. Depending on its topology, it controls the associated voltage or current variation. VFDs are used in applications ranging from small appliances to large compressors.

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A single-phase rectifier with reduced current ripple and power factor correction

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