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1. EP2830995 - COMPACT, CONFIGURABLE POWER SUPPLY FOR ENERGIZING OZONE-PRODUCING CELLS

Office
European Patent Office
Application Number 13715506
Application Date 19.03.2013
Publication Number 2830995
Publication Date 04.02.2015
Publication Kind B1
IPC
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
C01B 13/11
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
13Oxygen; Ozone; Oxides or hydroxides in general
10Preparation of ozone
11by electric discharge
H02M 1/32
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
32Means for protecting converters other than by automatic disconnection
H02M 1/36
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
36Means for starting or stopping converters
H02M 3/335
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
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
H02M 5/458
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
5Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
40with intermediate conversion into dc
42by static converters
44using discharge tubes or semiconductor devices to convert the intermediate dc into ac
453using devices of a triode or transistor type requiring continuous application of a control signal
458using semiconductor devices only
CPC
C01B 13/115
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
13Oxygen; Ozone; Oxides or hydroxides in general
10Preparation of ozone
11by electric discharge
115characterised by the electrical circuits producing the electrical discharge
C01B 13/11
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
13Oxygen; Ozone; Oxides or hydroxides in general
10Preparation of ozone
11by electric discharge
H02H 9/02
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
9Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
02responsive to excess current
H02M 5/458
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
5Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
40with intermediate conversion into dc
42by static converters
44using discharge tubes or semiconductor devices to convert the intermediate dc into ac
453using devices of a triode or transistor type requiring continuous application of a control signal
458using semiconductor devices only
H02M 3/33573
H02M 3/01
Applicants MKS INSTR INC
Inventors TRAN KEN
TIAN FENG
CHEN XING
LEE FRANKLIN
Designated States
Priority Data 13432415 28.03.2012 US
Title
(DE) KOMPAKTES UND KONFIGURIERBARES NETZTEIL ZUR SPANNUNGSVERSORGUNG OZONPRODUZIERENDER ZELLEN
(EN) COMPACT, CONFIGURABLE POWER SUPPLY FOR ENERGIZING OZONE-PRODUCING CELLS
(FR) ALIMENTATION ÉLECTRIQUE COMPACTE CONFIGURABLE POUR EXCITER DES CELLULES DE PRODUCTION D'OZONE
Abstract
(EN) Improvements in the supply of high-frequency electrical power to ozone-producing cells can be accomplished using the systems and techniques described herein. Application of a DC-DC converter operating at a switching frequency substantially greater than a load frequency, supports generation of a high- voltage AC for powering such cells, while allowing for reductions in component size and reductions in a quality factor of a load tuning circuit. Controllable power inverters used in obtaining one or more of the switching and load frequencies can be controlled using feedback techniques to provide stable, high-quality power to ozone-producing cells under variations in one or more of externally supplied power and load conditions. An inrush protection circuit can also be provided to selectively introduce a current-limiting resistance until an input DC bus has been sufficiently initialized as determined by measurements obtained from the DC bus. The current limiting resistance can be a positive-temperature coefficient thermistor.
(FR) L'invention concerne des perfectionnements à l'alimentation d'énergie électrique à haute fréquence pour des cellules de production d'ozone, qui peut être accomplie en utilisant les systèmes et techniques décrits ici. L'application d'un convertisseur continu-continu fonctionnant à une fréquence de commutation sensiblement supérieure à une fréquence de charge supporte la production d'un courant alternatif à haute tension pour l'alimentation de telles cellules, tout en permettant des réductions de taille de composant et des réductions d'un facteur de qualité d'un circuit d'ajustement de charge. Des onduleurs électriques réglable utilisés pour obtenir une ou plusieurs des fréquences de commutation et de charge peuvent être réglés en utilisant des techniques de rétroaction pour fournir une énergie stable et de haute qualité à des cellules de production d'ozone sous des variations d'une ou plusieurs conditions de puissance et de charge alimentées extérieurement. Un circuit de protection d'entrée peut être également fourni pour introduire de manière sélective une résistance de limitation de courant jusqu'à ce qu'un bus continu d'entrée ait été suffisamment initialisé comme déterminé par des mesures obtenues à partir du bus continu. La résistance de limitation de courant peut être un thermistor à coefficient de température positive.