CA2373762A1 - Method and apparatus for converting a dc voltage to an ac voltage - Google Patents

Method and apparatus for converting a dc voltage to an ac voltage Download PDF

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Publication number
CA2373762A1
CA2373762A1 CA002373762A CA2373762A CA2373762A1 CA 2373762 A1 CA2373762 A1 CA 2373762A1 CA 002373762 A CA002373762 A CA 002373762A CA 2373762 A CA2373762 A CA 2373762A CA 2373762 A1 CA2373762 A1 CA 2373762A1
Authority
CA
Canada
Prior art keywords
power
voltage source
output
terminal
source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002373762A
Other languages
French (fr)
Other versions
CA2373762C (en
Inventor
David E. Reilly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric IT Corp
Original Assignee
David E. Reilly
American Power Conversion Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by David E. Reilly, American Power Conversion Corporation filed Critical David E. Reilly
Publication of CA2373762A1 publication Critical patent/CA2373762A1/en
Application granted granted Critical
Publication of CA2373762C publication Critical patent/CA2373762C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53832—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement in a push-pull arrangement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies 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

Abstract

Embodiments of the present invention are directed to an uninterruptible power supply for providing AC power to a load. In embodiments of the present invention, the uninterruptible power supply includes an input to receive AC power from an AC power source, an output that provides AC power, a DC voltage source that provides DC power, the DC
voltage source having an energy storage device, an inverter (200) operatively coupled to the DC voltage source to receive DC power and to provide AC
power. The inverter includes first and second output nodes to provide AC power to the load (126), first and second input nodes to receive DC power from the DC voltage source (18a), a resonant element (140) having a first terminal and a second terminal, the second terminal being electrically coupled to the first output node, a first switch (134) electrically coupled between the first terminal of the resonant element and the first input node, and a set of switches (106, 112, 118, 124) operatively coupled between the first and second output nodes and the first and second input nodes and controlled to generate AC power from the DC power. The uninterruptible power supply further includes a transfer switch constructed and arranged to select one of the AC power source and the DC voltage source as an output power source for the uninterruptible power supply.
CA 2373762 1999-05-13 2000-05-11 Method and apparatus for converting a dc voltage to an ac voltage Expired - Lifetime CA2373762C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/311,043 1999-05-13
US09/311,043 US6404658B1 (en) 1999-05-13 1999-05-13 Method and apparatus for converting a DC voltage to an AC voltage
PCT/US2000/012921 WO2000070736A1 (en) 1999-05-13 2000-05-11 Method and apparatus for converting a dc voltage to an ac voltage

Publications (2)

Publication Number Publication Date
CA2373762A1 true CA2373762A1 (en) 2000-11-23
CA2373762C CA2373762C (en) 2008-04-08

Family

ID=23205147

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2373762 Expired - Lifetime CA2373762C (en) 1999-05-13 2000-05-11 Method and apparatus for converting a dc voltage to an ac voltage

Country Status (9)

Country Link
US (4) US6404658B1 (en)
EP (2) EP1605577B1 (en)
JP (1) JP4651824B2 (en)
AT (1) ATE303668T1 (en)
AU (1) AU770941B2 (en)
CA (1) CA2373762C (en)
DE (1) DE60022346T2 (en)
ES (1) ES2430370T3 (en)
WO (1) WO2000070736A1 (en)

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Also Published As

Publication number Publication date
EP1605577B1 (en) 2013-07-17
JP2004500791A (en) 2004-01-08
US6400591B2 (en) 2002-06-04
AU770941B2 (en) 2004-03-11
EP1605577A2 (en) 2005-12-14
EP1186094A1 (en) 2002-03-13
AU4840000A (en) 2000-12-05
EP1605577A3 (en) 2009-06-24
CA2373762C (en) 2008-04-08
US20010033505A1 (en) 2001-10-25
ES2430370T3 (en) 2013-11-20
US20030026113A1 (en) 2003-02-06
US6404658B1 (en) 2002-06-11
ATE303668T1 (en) 2005-09-15
DE60022346T2 (en) 2006-06-14
US20020030411A1 (en) 2002-03-14
EP1186094B1 (en) 2005-08-31
DE60022346D1 (en) 2005-10-06
US6728119B2 (en) 2004-04-27
WO2000070736A9 (en) 2002-04-18
US6630751B2 (en) 2003-10-07
WO2000070736A1 (en) 2000-11-23
JP4651824B2 (en) 2011-03-16

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