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1. WO1996005647 - DC CONTENT CONTROL FOR AN INVERTER

Publication Number WO/1996/005647
Publication Date 22.02.1996
International Application No. PCT/US1994/014788
International Filing Date 23.12.1994
Chapter 2 Demand Filed 11.03.1996
IPC
H02M 7/48 2007.01
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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 7/5387 2007.01
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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
53using devices of a triode or transistor type requiring continuous application of a control signal
537using semiconductor devices only, e.g. single switched pulse inverters
5387in a bridge configuration
CPC
H02M 2007/4803
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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
4803with means for reducing dc component from AC output voltage
H02M 7/48
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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 7/53873
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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
53using devices of a triode or transistor type requiring continuous application of a control signal
537using semiconductor devices only, e.g. single switched pulse inverters
5387in a bridge configuration
53871with automatic control of output voltage or current
53873with digital control
Applicants
  • SUNDSTRAND CORPORATION [US/US]; 4949 Harrison Avenue P.O. Box 7003 Rockford, IL 61125-7003, US
Inventors
  • NGUYEN, Vietson; US
  • DHYANCHAND, P., John; US
Agents
  • MAKEEVER, Jeffery, J.; 4949 Harrison Avenue P.O. Box 7003 Rockford, IL 61125-7003, US
Priority Data
08/289,48511.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DC CONTENT CONTROL FOR AN INVERTER
(FR) REGULATION DU COURANT CONTINU SORTANT D'UN ONDULEUR
Abstract
(EN)
A control for an inverter having a switch (Q1-Q6) which is operated in accordance with a PMW waveform having spaced rising and falling edges includes circuitry (66) which detects the magnitude (76) and polarity (78) of a DC component in the AC output power produced by the inverter and an adder (64)/substractor which adjusts at least one of a rising and falling edge of the waveform to reduce the magnitude of the DC component.
(FR)
L'invention concerne un régulateur pour un onduleur ayant un commutateur (Q1-Q6) qui fournit des ondes sous la forme d'impulsions qui ont un flanc montant et un flanc descendant, et dont on peut moduler la longueur. Ce régulateur comporte un circuit (66) qui détecte la grandeur (76) et la polarité (78) d'une composante courant continu dans la sortie de l'onduleur produisant un courant alternatif et un additionneur (64)/soustracteur qui ajuste au moins un des flancs montant ou descendant de la forme d'onde pour réduire la grandeur de la composante courant continu.
Also published as
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