Ups frequency converter and line conditioner

H - Electricity – 02 – M

Patent

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Details

H02M 1/42 (2007.01)

Patent

CA 2719228

Systems and methods disclosed herein monitor and control input to a converter in one or more of a UPS, a frequency converter, or a line conditioner. Distortion due at least in part to ripple voltage can be removed from a control signal that controls input current to the converter. The systems and methods described herein afford a simple and effective way to reduce or eliminate one or more of subharmonic oscillation and total harmonic distortion from a converter input current during synchronous and asynchronous modes of operation. The converter may include one or more of a rectifier and an inverter. Image

La présente invention concerne des systèmes et des procédés qui surveillent et commandent l'entrée à un convertisseur dans une ou plusieurs alimentation sans coupure (UPS), un convertisseur de fréquence et/ou un conditionneur de ligne. La distorsion due au moins en partie à la tension d'ondulation peut être supprimée d'un signal de commande qui commande le courant d'entrée au convertisseur. Les systèmes et procédés de l'invention offrent une manière simple et efficace de réduire ou d'éliminer l'oscillation sous-harmonique et/ou la distorsion harmonique totale d'un courant d'entrée au convertisseur pendant les modes de fonctionnement synchrone et asynchrone. Le convertisseur peut comprendre un ou plusieurs redresseurs et inverseurs.

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