WO1987004874A1 - Appareil assurant la securite maximale du fonctionnement en tampon de batteries accumulatrices et d'appareils de recharge dans des postes de transformation et des centrales electriques - Google Patents

Appareil assurant la securite maximale du fonctionnement en tampon de batteries accumulatrices et d'appareils de recharge dans des postes de transformation et des centrales electriques Download PDF

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Publication number
WO1987004874A1
WO1987004874A1 PCT/HU1987/000004 HU8700004W WO8704874A1 WO 1987004874 A1 WO1987004874 A1 WO 1987004874A1 HU 8700004 W HU8700004 W HU 8700004W WO 8704874 A1 WO8704874 A1 WO 8704874A1
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WO
WIPO (PCT)
Prior art keywords
output
accumulator
voltage
charging
unit
Prior art date
Application number
PCT/HU1987/000004
Other languages
German (de)
English (en)
Inventor
Gyo^"zo^" DOMOKUS
Antal Tombor
Original Assignee
Magyar Villamos Mu^"Vek Tröszt
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 Magyar Villamos Mu^"Vek Tröszt filed Critical Magyar Villamos Mu^"Vek Tröszt
Publication of WO1987004874A1 publication Critical patent/WO1987004874A1/fr

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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
    • H02J9/061—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 DC powered loads

Definitions

  • the invention relates to a device for optimally securing the buffer operation of the accumulator batteries and charging devices of transformer stations and power plants, this device contributing to the supply of uninterruptible direct current auxiliary systems with constant and / or changing load.
  • auxiliary systems the consumer requirement is secured by an uninterruptible mains supply unit, which contains an accumulator connected in parallel to a charging unit, which ensures the continuity of operation in the event of a brief / 5-1000 msec / or long-term failure of the mains voltage.
  • buffer batteries function in such a way that the accumulator is directly connected in parallel with the charging device.
  • the voltage of the accumulator is selected to a value determined by the charging device.
  • the screening effect of the accumulator comes into its own with little internal resistance.
  • This sieving effect means that the accumulator delivers a current at constant DC current load, the size of which is given by the charging voltage of the charging device in the voltage minima, on the other hand absorbs this current as the charging current during the voltage peaks.
  • only a small direct current component flows through the accumulator and depends on the direct current of the consumer current alternating current.
  • the known charging devices are designed with multi-phase and multi-way rectification, so the frequency of the alternating current flowing through the battery is significantly higher than the operating frequency.
  • the alternating current flowing through the accumulator leads to a reduction in the lifespan of the accumulators.
  • the ripple of the supply voltage which should be kept within the limits of 3-5%.
  • FIG. 1 a shows the change in the AC voltage component on the accumulator as a function of time.
  • FIG. 1 a shows that the voltage U of the accumulator is between the maximum U t and minimum U t , ie between U tmax and U tmin fluctuates.
  • the DC load on the auxiliary system was constant during the period examined. It is clear from FIGS. 1 a and 1 b that the current flowing through the accumulator is an alternating current rich in harmonics.
  • the aim of the invention is to provide a device in which the accumulator is completely disconnected from the load in the presence of the supply voltage, i.e. it should be ensured that the accumulator current contains no AC component, i.e. periodically the direction does not change.
  • the electrolytic and mechanical use of the battery can be significantly reduced and the service life of the battery can be significantly increased.
  • the invention is thus a device for optimally securing the buffer operation of the accumulator batteries and charging devices of transformer stations and power plants, which has a charging unit connected to an AC voltage source, which is provided with a rectifier, sieve and voltage regulator, and an accumulator connected in parallel with the charging unit and in accordance with of the invention is designed such that between an output of the charging unit and an output of the accumulator, one input is inserted, a decoupling unit / 3 / which completely switches off the accumulator when the supply voltage is present, while the output of the decoupling unit connects the output of the Device forms.
  • the decoupling unit contains at least one diode between its two inputs and one stable voltage reducer connected between its input connected to the accumulator and its output.
  • a switch is connected in parallel with the voltage reducer.
  • the switch is actuated with a current detector connected in series to the output of the charging unit.
  • a further switch is inserted between the output of the charging unit and the output of the device.
  • a further embodiment of the invention is characterized in that between the input of the decoupling unit connected to the output of the charging unit and the input of the decoupling unit connected to the output of the accumulator, a stable voltage reducer is inserted serially, while between the output of the device and the output of the accumulator is at least one diode connected in series.
  • a switch is inserted between the output of the charging unit and the output of the device.
  • FIG. 2 shows an embodiment of the invention
  • Fig. 3 shows another embodiment of the invention.
  • FIG. 2 A block diagram of a preferred embodiment can be seen in FIG. As is apparent from Fig. 2, is an AC voltage Food source 1 provided on a charger
  • the charging unit 2 has a rectifier, sieve and a voltage regulator, a peak voltage regulator being installed as a voltage regulator in the present embodiment.
  • Output 2.1 of the charging unit 2 is via a current detector 5 at an input 3.1 of a decoupling unit
  • Another input 3.2 of the decoupling unit 3 is connected to an accumulator 4, in the present exemplary embodiment also via the current detector 5.
  • Another output 4.2 of the accumulator 4 is connected to a further output 2.2 of the charging unit 2, and these form an output of the device, to which the load Rt is connected.
  • Another output of the device is either the output
  • the decoupling unit 3 contains a diode D1 inserted in series between the inputs 3.1 and 3.2 and a ⁇ -stable voltage reducer 8 inserted between the input 3.2 and the output 3.3, which in the present exemplary embodiment consists of serially connected oodes D1 ... Dn and with a switch 5 is bridged.
  • the switch 6 serves to short-circuit the stable voltage reducer 8 in the event of a power failure at the supply source 1 and thus to ensure that the full voltage of the battery 4 reaches the load Rt.
  • the output 3.1 and the output 3.3 are bridged by a further switch 7, by means of which the entire decoupling unit 3 can optionally be switched off.
  • the switch 6 can preferably also be operated in such a way that it is connected to the current detector 5, ie if the measured current falls below a predetermined value, it closes the stable voltage reducer 8 automatically short and enables the supply from the accumulator 4.
  • the stable voltage reducer 8 switches off the load Rt from the battery 4 as long as the voltage at the output 2.1 of the charging unit 2 is greater than the sum of the voltages of the battery 4 and the stable voltage reducer 8. However, if the voltage of the Charger 2 drops below the voltage of the accumulator 4, the accumulator 4 automatically takes over the supply of the load Rt. It is advantageous to set the value of the voltage of the stable voltage reducer 8 to the value of the permitted ripple.
  • the voltage regulator of the charging unit 2 has to function as a peak voltage regulator.
  • the voltage regulator of the charging unit 2 is to be set to the permitted value U tmin , since the stable voltage reducer 8 is inserted serially between the two inputs 3.1 and 3.2. Between the entrance 3.1 and the
  • the trained according to the invention and in Fig. The device shown 2 functions as follows:
  • the alternating current supply source 1 and the charging unit 2 provided with a rectifier, sieve and control units generate the equilibrium voltage which corresponds to the requirements with regard to viability and stability), which on the other hand is positive Busbar, d. H . the exit 3.3, and on the other hand is connected to the positive output 4.1 of the battery via the diode D1, thereby supplying the loads connected to the rail and occasionally charging the battery 4 by continuous charging or rapid charging.
  • the positive switching point of the accumulator 4 is also connected to the positive rail via a stable voltage reducer 8. If the mains supply fails, the accumulator 4 feeds the direct current consumers via the stable voltage reducer 8.
  • the stable voltage reducer 8 has the task of reducing the voltage of the accumulator 4 reaching the rail practically independently of the load current by a predetermined value.
  • the degree of voltage reduction is preferably set to the value of the ripple. In this case, a smooth DC voltage corresponding to the minimum value of the ripple remains on the rail if the AC voltage fails.
  • FIG. 3 Another possible solution is illustrated in FIG. 3.
  • it is also expedient to set the voltage drop to the value from peak to peak of the ripple in this case it is expedient to charge the accumulator to the minimum value of the ripple of the supply voltage and if the AC voltage fails, this voltage now becomes switched to the rail without further visible waste.
  • the battery 4 is subjected to a load, the size of which depends on the load current and the frequency of which corresponds to the operating frequency. It is ensured that as long as a voltage is present at the supply source 1 or a sufficiently large voltage is present at the output of the charging unit 2, the accumulator 4 is separated from the load Rt. If the voltage fails or if other faults occur in the AC network, the battery 4 takes over the supply.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Un appareil assurant la sécurité maximale du fonctionnement en tampon de batteries accumulatrices et d'appareils de recharge dans des postes de transformation et des centrales électriques comprend une unité de recharge (2) connectée à une source d'alimentation (1) en courant alternatif et pourvue d'un redresseur, d'un filtre et d'un régulateur de tension, et un accumulateur (4) connecté en parallèle à l'unité de recharge (2). L'entrée (3.1, 3.2) d'une unité de découplage (3) qui sépare entièrement l'accumulateur (4) de la sortie de l'appareil lorsque la tension d'alimentation est appliquée est insérée entre chaque sortie (2.1) de l'unité de recharge (2) et chaque sortie (4.1) de l'accumulateur (4). Une sortie de l'unité de découplage (3) forme la sortie (3.3) de l'appareil.
PCT/HU1987/000004 1986-02-03 1987-02-03 Appareil assurant la securite maximale du fonctionnement en tampon de batteries accumulatrices et d'appareils de recharge dans des postes de transformation et des centrales electriques WO1987004874A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU46086A HUT44379A (en) 1986-02-03 1986-02-03 Apparatus for optimum control of buffer operation of accumulator plants and chargers of transformer and power stations
HU460/86 1986-02-03

Publications (1)

Publication Number Publication Date
WO1987004874A1 true WO1987004874A1 (fr) 1987-08-13

Family

ID=10949697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1987/000004 WO1987004874A1 (fr) 1986-02-03 1987-02-03 Appareil assurant la securite maximale du fonctionnement en tampon de batteries accumulatrices et d'appareils de recharge dans des postes de transformation et des centrales electriques

Country Status (6)

Country Link
EP (1) EP0262173A1 (fr)
AT (1) AT396193B (fr)
DE (1) DE3790064D2 (fr)
GB (1) GB2198600B (fr)
HU (1) HUT44379A (fr)
WO (1) WO1987004874A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402834A2 (fr) * 1989-06-16 1990-12-19 Siemens Aktiengesellschaft Circuit de surveillance de la tension d'un dispositif sélectionné d'alimentation à courant continu dans un système d'alimentation redondant
EP0402833A2 (fr) * 1989-06-12 1990-12-19 Siemens Aktiengesellschaft Circuit de surveillance de la tension d'un dispositif sélectionné d'alimentation à courant continu dans un système d'alimentation redondant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2313958A1 (de) * 1973-03-21 1974-09-26 Ceag Licht & Strom Notstromversorgungsgeraet, insbesondere fuer eine leuchte
CH572678A5 (fr) * 1974-01-31 1976-02-13 Geluwe Jan Van
FR2298892A1 (fr) * 1975-01-21 1976-08-20 Lucas Industries Ltd Systeme electrique pour un vehicule actionne par batteries d'accumulateurs
US4143282A (en) * 1976-12-03 1979-03-06 Rca Corporation Bilateral energy transfer apparatus
DE3419078A1 (de) * 1983-06-01 1984-12-06 EPSON Corp., Shinjuku, Tokio/Tokyo Schaltungsanordnung zur aufladung von sekundaerelementen

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US1143282A (en) * 1913-05-03 1915-06-15 Edward P King Sleeping-garment.
FR1492820A (fr) * 1965-12-29 1967-08-25 Accumulateurs Fixes Dispositif de commutation ultra-rapide fonctionnant en courant continu ou alternatif redressé, plus particulièrement pour substituer une alimentation à une autre
US3609386A (en) * 1969-06-30 1971-09-28 Ibm Apparatus for providing uninterrupted power to a load
DE2055754B2 (de) * 1969-11-17 1978-10-12 International Standard Electric Corp., New York, N.Y. (V.St.A.) Unterbrechungsfreie Stromversorgung
DE2531680C2 (de) * 1975-07-16 1982-05-27 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung für die Sicherstellung der Stromversorgung von zentralen Einrichtungen in Fernsprechvermittlungsanlagen
JPS5826638B2 (ja) * 1976-10-15 1983-06-03 クロイ電機株式会社 高周波点灯螢光灯調光装置
US4155081A (en) * 1977-10-25 1979-05-15 Honeywell Inc. Rechargeable battery backup power source for an ionization smoke detector device
FR2420866A1 (fr) * 1978-03-20 1979-10-19 Accumulateurs Fixes Procede et dispositif d'alimentation en courant alternatif et en courant continu
GB2202097A (en) * 1986-11-21 1988-09-14 Mvb Components Ltd Control circuit for a bicycle lighting system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2313958A1 (de) * 1973-03-21 1974-09-26 Ceag Licht & Strom Notstromversorgungsgeraet, insbesondere fuer eine leuchte
CH572678A5 (fr) * 1974-01-31 1976-02-13 Geluwe Jan Van
FR2298892A1 (fr) * 1975-01-21 1976-08-20 Lucas Industries Ltd Systeme electrique pour un vehicule actionne par batteries d'accumulateurs
US4143282A (en) * 1976-12-03 1979-03-06 Rca Corporation Bilateral energy transfer apparatus
DE3419078A1 (de) * 1983-06-01 1984-12-06 EPSON Corp., Shinjuku, Tokio/Tokyo Schaltungsanordnung zur aufladung von sekundaerelementen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402833A2 (fr) * 1989-06-12 1990-12-19 Siemens Aktiengesellschaft Circuit de surveillance de la tension d'un dispositif sélectionné d'alimentation à courant continu dans un système d'alimentation redondant
EP0402833A3 (fr) * 1989-06-12 1992-03-25 Siemens Aktiengesellschaft Circuit de surveillance de la tension d'un dispositif sélectionné d'alimentation à courant continu dans un système d'alimentation redondant
EP0402834A2 (fr) * 1989-06-16 1990-12-19 Siemens Aktiengesellschaft Circuit de surveillance de la tension d'un dispositif sélectionné d'alimentation à courant continu dans un système d'alimentation redondant
EP0402834A3 (fr) * 1989-06-16 1992-03-25 Siemens Aktiengesellschaft Circuit de surveillance de la tension d'un dispositif sélectionné d'alimentation à courant continu dans un système d'alimentation redondant

Also Published As

Publication number Publication date
DE3790064D2 (en) 1988-06-01
GB8722664D0 (en) 1987-11-04
HUT44379A (en) 1988-02-29
AT396193B (de) 1993-06-25
EP0262173A1 (fr) 1988-04-06
GB2198600B (en) 1990-09-12
GB2198600A (en) 1988-06-15
ATA900287A (de) 1992-10-15

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