Processing

Please wait...

Settings

Settings

Goto Application

1. WO2013134217 - ALTERNATOR RIPPLE VOLTAGE REDUCTION USING OUTPUT FEEDBACK TO AN INDEPENDENT FIELD COIL

Publication Number WO/2013/134217
Publication Date 12.09.2013
International Application No. PCT/US2013/029040
International Filing Date 05.03.2013
Chapter 2 Demand Filed 20.08.2013
IPC
H02K 15/02 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
CPC
H02K 19/30
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
19Synchronous motors or generators
16Synchronous generators
26characterised by the arrangement of exciting windings
30for compounding
H02P 9/302
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
9Arrangements for controlling electric generators for the purpose of obtaining a desired output
14by variation of field
26using discharge tubes or semiconductor devices
30using semiconductor devices
302Brushless excitation
H02P 9/48
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
9Arrangements for controlling electric generators for the purpose of obtaining a desired output
48Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
Applicants
  • C.E. NIEHOFF & CO. [US]/[US]
Inventors
  • PATTERSON, Ciaran
  • POURKERMANI, Mahmood
Agents
  • <span class="term-highlight">AHMADSHAHI</span>, <span class="term-highlight">Michael</span> <span class="term-highlight">M</span>.
Priority Data
13/412,84606.03.2012US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ALTERNATOR RIPPLE VOLTAGE REDUCTION USING OUTPUT FEEDBACK TO AN INDEPENDENT FIELD COIL
(FR) RÉDUCTION DE TENSION D'UNE OSCILLATION D'ALTERNATEUR À L'AIDE D'UN RETOUR DE SORTIE VERS UNE BOBINE DE CHAMP INDÉPENDANTE
Abstract
(EN)
A generator comprises first and second field coils whose combined magnetic flux causes stator current within one or more stator windings which, when rectified via a rectifier circuit, produces rectified output current with reduced voltage fluctuations. A filter circuit extracts the AC component of the rectified output current and delivers it to the second field coil. The magnetic flux generated by the second field coil modifies the magnetic flux of the first field coil effectively cancelling the voltage ripples associated with the rectified output current of the generator.
(FR)
La présente invention concerne un générateur qui comprend des première et seconde bobines de champ, dont le flux magnétique combiné produit un courant de stator dans un ou plusieurs enroulements de stator qui, lorsqu'il est rectifié par un circuit rectificateur, produit un courant de sortie rectifié avec des fluctuations de tension réduites. Un circuit de filtre extrait le composant CA du courant de sortie rectifié et le délivre à la seconde bobine de champ. Le flux magnétique généré par la seconde bobine de champ modifie le flux magnétique de la première bobine de champ, ce qui annule efficacement les oscillations de tension associées au courant de sortie rectifié du générateur.
Latest bibliographic data on file with the International Bureau