ES345892A1 - Method and apparatus for influencing the output voltages of current supply installations - Google Patents

Method and apparatus for influencing the output voltages of current supply installations

Info

Publication number
ES345892A1
ES345892A1 ES345892A ES345892A ES345892A1 ES 345892 A1 ES345892 A1 ES 345892A1 ES 345892 A ES345892 A ES 345892A ES 345892 A ES345892 A ES 345892A ES 345892 A1 ES345892 A1 ES 345892A1
Authority
ES
Spain
Prior art keywords
phase
inverters
supply
oscillator
output
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.)
Expired
Application number
ES345892A
Other languages
Spanish (es)
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.)
Agie Charmilles SA
Original Assignee
Agie Charmilles SA
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 Agie Charmilles SA filed Critical Agie Charmilles SA
Publication of ES345892A1 publication Critical patent/ES345892A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks

Abstract

In a multi-phase system producing power from a D.C. supply through inverters, for each phase two waves are generated which are variably phase displaced by equal and opposite amounts to a reference phase angle. For each phase, a pair of inverters are employed connected to a common oscillator 1 and each comprising a monostable multivibrator 2, a Schmitt trigger circuit 3, a flipflop circuit 4 and firing circuits, e.g. 7, 8, the latter triggering controllable rectifiers in a unit, e.g. 5 supplying energy to a transformer winding 143 connected serially with another winding 144, the output being taken from terminals 150, 151. The load voltage is detected and compared with a reference in a differential amplifier 14 the output of which angularly displaces in the multivibrators 2 the oscillator output by equal and opposite amounts so that the phase angles of the voltages relative to one another are maintained equal, hence voltage variation with asymmetric loading is also compensated. The system may be substituted for the arrangement disclosed in Specification 1,095,029 for providing a "no break" supply system. A common oscillator may feed all the pairs of inverters (Fig. 3, not shown) and be tied to a main supply (20) through a frequency multiplier (28), which oscillator is free running should the main supply dissappear. The load 15 is normally started from the mains and subsequently changed to the inverters through a switch 16. The arrangement may supply a variable speed motor by arranging for the reference to have a variable frequency.
ES345892A 1966-09-27 1967-09-27 Method and apparatus for influencing the output voltages of current supply installations Expired ES345892A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1396066A CH465707A (en) 1966-09-27 1966-09-27 Method and device for influencing the output voltage vectors of a power supply device

Publications (1)

Publication Number Publication Date
ES345892A1 true ES345892A1 (en) 1970-06-01

Family

ID=4396796

Family Applications (1)

Application Number Title Priority Date Filing Date
ES345892A Expired ES345892A1 (en) 1966-09-27 1967-09-27 Method and apparatus for influencing the output voltages of current supply installations

Country Status (12)

Country Link
US (1) US3562624A (en)
AT (1) AT282767B (en)
BE (1) BE704374A (en)
BR (1) BR6793195D0 (en)
CH (1) CH465707A (en)
CS (1) CS167873B2 (en)
DE (1) DE1588009A1 (en)
ES (1) ES345892A1 (en)
GB (1) GB1168841A (en)
IL (1) IL28655A (en)
NL (1) NL6713148A (en)
SE (2) SE361116B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312030A (en) * 1976-07-21 1978-02-03 Fuji Electric Co Ltd Power converter
AU2003220264A1 (en) * 2002-03-14 2003-09-29 Midtronics, Inc. Electronic battery tester with battery failure temperature determination
CN111628563A (en) * 2020-04-24 2020-09-04 合肥美的智能科技有限公司 Power-off protection method and power-off protection device for vending machine and vending machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205424A (en) * 1961-05-23 1965-09-07 Gulton Ind Inc Voltage phase controller employing synchronized square wave generators
US3309600A (en) * 1963-01-30 1967-03-14 Gen Electric D.c. to a.c. inverter arrangement
US3324374A (en) * 1963-04-23 1967-06-06 Gen Electric Frequency conversion system
US3354376A (en) * 1964-12-11 1967-11-21 Gen Electric Master-slave inverter voltage regulator
US3390322A (en) * 1965-08-20 1968-06-25 Regulators Inc Phase controlled inverter
US3381205A (en) * 1965-09-14 1968-04-30 Westinghouse Electric Corp Phase shift regulated electrical inverter system

Also Published As

Publication number Publication date
US3562624A (en) 1971-02-09
IL28655A (en) 1970-11-30
CS167873B2 (en) 1976-05-28
GB1168841A (en) 1969-10-29
SE361116B (en) 1973-10-15
BE704374A (en) 1968-02-01
NL6713148A (en) 1968-03-28
AT282767B (en) 1970-07-10
BR6793195D0 (en) 1973-02-15
CH465707A (en) 1968-11-30
SE337424B (en) 1971-08-09
DE1588009A1 (en) 1971-01-21

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