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1. WO2006116548 - DIGITAL IMPLEMENTATION OF POWER FACTOR CORRECTION

Publication Number WO/2006/116548
Publication Date 02.11.2006
International Application No. PCT/US2006/015921
International Filing Date 27.04.2006
IPC
G05F 1/10 2006.01
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
G05F 1/40 2006.01
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
12wherein the variable is actually regulated by the final control device is ac
40using discharge tubes or semiconductor devices as final control devices
CPC
G05F 1/565
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
46wherein the variable actually regulated by the final control device is dc
56using semiconductor devices in series with the load as final control devices
565sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
H02M 1/42
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
H02M 3/157
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
156with automatic control of output voltage or current, e.g. switching regulators
157with digital control
Y02B 70/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
70Technologies for an efficient end-user side electric power management and consumption
10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Applicants
  • INTERNATIONAL RECTIFIER CORPORATION [US]/[US] (AllExceptUS)
  • LI, Yong [CN]/[US] (UsOnly)
Inventors
  • LI, Yong
Agents
  • WEINER, Samuel, H.
Priority Data
60/675,54128.04.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DIGITAL IMPLEMENTATION OF POWER FACTOR CORRECTION
(FR) MISE EN OEUVRE NUMERIQUE DE CORRECTION DU FACTEUR DE PUISSANCE
Abstract
(EN)
A circuit for providing power factor correction includes a boost converter circuit (L, Q1, BD) and a control circuit receiving as inputs a rectified AC input voltage from a rectifier (BR), a signal proportional to current through the boost inductor and the DC bus voltage across the capacitor of tile boost converter. The control circuit provides a pulse width modulated signal to control the on time of a PFC switch. The control circuit further includes a voltage regulator and a current regulator. The current regulator includes a difference device operable to subtract a signal proportional to the inductor current from the current reference signal, a PI controller adapted to receive the output of the difference device and provide a first control signal, a feed forward device operable to receive the rectified AC input voltage and to provide a second control signal with a smaller dynamic range than the AC input voltage, and an adder operable to add the first control signal to the second control signal to provide a PWM reference signal for generating the pulse width modulated signal. A zero crossing detector and vector rotator may be provided to provide a clean sinusoidal reference to the current regulator. A partial PFC regulator may be provide to provide partial mode PFC if desired.
(FR)
Un circuit de correction du facteur de puissance selon un mode de réalisation de l'invention peut comprendre un circuit convertisseur élévateur de tension et un circuit de commande recevant une tension d'entrée CA rectifiée en tant qu'entrées et d'un redresseur, un signal proportionnel au courant par le biais de l'inducteur élévateur de tension et la tension CC sur la barre omnibus sur le condensateur du convertisseur élévateur de tension. Le circuit de commande délivre un signal à modulation d'impulsions en durée pour commander le temps de fonctionnement d'un commutateur de correction du facteur de puissance (PFC). Le circuit de commande comprend également un régulateur de tension et un régulateur de courant. Le régulateur de courant comprend un dispositif différentiel conçu pour soustraire un signal proportionnel au courant d'induction du signal de référence du courant, une commande proportionnelle intégrale conçue pour recevoir le signal de sortie du dispositif différentiel et pour produire un premier signal de commande, un dispositif avec action prévisionnelle conçu pour recevoir la tension d'entrée CA rectifiée et pour produire une deuxième signal de commande ayant une plage dynamique plus petite que la tension d'entrée CA et un sommateur conçu pour combiner le premier signal de commande et le deuxième signal de commande de manière à produire un signal de référence PWM pour générer le signal de modulation d'impulsions en durée. Il est possible d'utiliser un détecteur de passage par zéro et un vecteur rotation pour fournir une référence sinusoïdale propre, au régulateur de courant. Il est également possible d'utiliser un régulateur PFC partiel pour générer un PFC en mode partiel si désiré.
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