Methods for minimizing double-frequency ripple power in...

H - Electricity – 02 – M

Patent

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H02M 1/14 (2006.01)

Patent

CA 2702250

A method is provided for minimizing a double-frequency ripple power exchanged between a load and an energy source, the energy source delivering electrical power to the load through a single-phase power conditioner, and the power conditioner being coupled to an energy storage device. The method senses a first AC waveform at the output of the power conditioner, generates a second AC waveform at the energy storage device, the second AC waveform having the same frequency as the first AC waveform, and shifts the second AC waveform by a phase shift equal to .pi./4 radians relative to a phase of the first AC waveform, thereby minimizing the double-frequency ripple power in the power supplied by the energy source.

L'invention concerne un procédé pour minimiser un courant ondulatoire à double fréquence échangé entre une charge et une source d'énergie, la source d'énergie fournissant un courant électrique à la charge par l'intermédiaire d'un conditionneur de courant monophasé, et le conditionneur de courant étant relié à un dispositif de stockage d'énergie. Le procédé détecte la première forme d'onde de courant alternatif (CA) au niveau de la sortie du conditionneur de courant, fournit une seconde forme d'onde CA au niveau du dispositif de stockage d'énergie, la seconde forme d'onde CA ayant la même fréquence que la première forme d'onde CA, et déphase la seconde forme d'onde CA d'un décalage égal à p/4 radians par rapport à une phase de la première forme d'onde CA, minimisant ainsi le courant ondulatoire à double fréquence dans le courant alimenté par la source d'énergie.

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