Low harmonics, polyphase converter circuit

H - Electricity – 02 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H02M 5/458 (2006.01) H02M 7/10 (2006.01)

Patent

CA 2565707

Disclosed is a multiphase converter circuit with p>3 phases (R,S,T) and a partial converter circuit (1) provided for each phase (R,S,T). Each partial converter circuit (1) comprises a rectifier unit (2), a direct voltage circuit (3) connected to the rectifier unit (2) and an inverter unit (4) connected to the direct current circuit (4). A first alternating voltage output (5) of an inverter unit (4) forms a phase connection (6) and second alternating voltage outputs (12) of the inverter units (5) are interconnected in a star connection. In order to produce as few harmonics as possible in relation to the fundamental of the voltage and current of an electric alternating voltage network connected on the input-side to the converter circuit, n transformers (7) are provided with respectively one primary winding (8) and with respectively m three-phase secondary winding sets (10). Each secondary winding set (10) is respectively formed by m three-phase secondary windings of each P transformer (7) and each secondary winding set (10) is connected by means of the associated secondary windings (9) to the rectifier unit (2) of respectively one partial converter circuit (1).

L'invention concerne un circuit commutateur polyphasé avec p = 3 phases (R, S; T) et un circuit commutateur partiel (1) par phase (R, S, T). Chaque circuit commutateur partiel (1) présente une unité redresseur (2), un circuit de tension continue (3) raccordé à l'unité redresseur (2) et une unité onduleur (4) raccordée au circuit de tension continue (4). En outre, une première sortie de tension alternative (5) de chaque unité onduleur (4) constitue un raccordement de phase (6) et des deuxièmes sorties de tension alternative (12) des unités onduleurs (5) sont interconnectées en étoile. Pour produire le moins d'oscillations harmoniques possible par rapport à l'oscillation fondamentale de la tension et du courant d'un réseau de tension alternative électrique raccordé à l'entrée du circuit commutateur, on utilise n transformateurs (7) ayant respectivement un enroulement primaire (8) et respectivement m enroulements secondaires triphasés (9), n = 2 et m = 3. On utilise également p jeux d'enroulements secondaires (10), chaque jeu d'enroulements secondaires (10) étant constitué respectivement de m/p enroulements secondaires triphasés de chaque transformateur (7) et chaque jeu d'enroulements secondaires (10) étant relié aux enroulements secondaires (9) associés avec l'unité redresseur (2) respectivement d'un circuit commutateur partiel (1).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Low harmonics, polyphase converter circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low harmonics, polyphase converter circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low harmonics, polyphase converter circuit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1701153

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.