EP2577838A1 - Alimentation électrique et procédé de fonctionnement de ladite alimentation électrique - Google Patents

Alimentation électrique et procédé de fonctionnement de ladite alimentation électrique

Info

Publication number
EP2577838A1
EP2577838A1 EP11720071.7A EP11720071A EP2577838A1 EP 2577838 A1 EP2577838 A1 EP 2577838A1 EP 11720071 A EP11720071 A EP 11720071A EP 2577838 A1 EP2577838 A1 EP 2577838A1
Authority
EP
European Patent Office
Prior art keywords
accumulator
power supply
current
output
power
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.)
Ceased
Application number
EP11720071.7A
Other languages
German (de)
English (en)
Inventor
Harald Schweigert
Wolfgang BÖHM
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2577838A1 publication Critical patent/EP2577838A1/fr
Ceased 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection

Definitions

  • the invention relates to a power supply comprising a controller and a power unit, wherein at a first output of the power unit, a DC output voltage is applied, to which a load with variable power consumption can be connected.
  • a supply network to which the power supply is connected usually has no perfect
  • Examples are cable cars and chairlifts, which require a battery backup according to various regulations, to a control voltage (usually 24V) for emergency supply of
  • buffer accumulators In this case, coming to use buffer accumulators should achieve the longest possible life in order to keep the maintenance of a plant low. With such rechargeable batteries, care is therefore taken to ensure a gentle charging and discharging process as well as protection against battery deep discharge.
  • a UPS system is a comprehensive solution because the accumulator can be charged by the charge controller with a tuned and optimized charging current characteristic without affecting the load. At the same time, this method is very expensive, since usually a separate UPS module is required in addition to the power supply.
  • the power supply is selected in such a way that there is a possibility for limiting the output current to a defined value above the rated current.
  • Buffer accumulator is via a backup or a
  • the output voltage of the power supply is adjusted so that it corresponds to the charging voltage of the accumulator. As long as the accumulator is not fully charged, the power supply is operated at its power limit.
  • Controlled charge is not possible.
  • the load will be charged after charging the accumulator
  • the invention is based, for a
  • Charging current or discharge current of the accumulator is set by controlling the DC output voltage. This is the result
  • Charging current or discharge current of the accumulator can be determined without its own UPS assembly. The accumulator and the too
  • Charging current This allows accurate control of the charging current by varying the output voltage.
  • the load voltage fluctuates with the accumulator charging voltage, but this does not matter due to the tolerances of the connected load.
  • the arrangement eliminates a charge controller circuit and still allows a controlled charge of the accumulator.
  • the DC output voltage is passed via the current measuring device to the second output.
  • a charging circuit is thus of an output terminal of the
  • the charging circuit can branch off even before the output terminal or include its own secondary-side auxiliary winding of a transformer. In the latter case, there is a fixed coupling between this auxiliary winding and a secondary-side main winding. It is also here, for example, only an actuator and a pulse width modulator required.
  • the load is by means of a first
  • This first diode or this first switch in a simple manner prevent the charging current from flowing directly into the load.
  • the first switch is only in the
  • Current measuring device comprises a shunt resistor and is connected to the controller.
  • the controller comprises a shunt resistor and is connected to the controller.
  • a charging makes a complete switching away from the power supply necessary, is switched off in one case by means of control of the other switches.
  • the output voltage is slightly lowered by means of control and the second diode couples the
  • the power supply comprises a
  • Power supply provides that by means of control for a predetermined duration, a lowering of the DC output voltage, so that the load is supplied by accumulator for this predetermined period. This serves, for example, the
  • Fig. 9 voltage waveforms
  • the power supply shown in Fig. 1 comprises a power unit 1 and a controller 5.
  • Power unit 1 has a primary side P, which can be connected to a supply network. At a first output OUT1 a secondary side S of the converter 2 is based on a reference potential G DC output voltage U L. At this a load 3 is connected.
  • the DC output voltage U L is fed via a current measuring device to a second output OUT2.
  • this current measuring device comprises a shunt resistor Rl.
  • Charging current measuring unit 5a of the controller 5 measured, indicated in Fig. By dotted arrows. Likewise, the
  • Output voltage measuring unit 5b of the controller 5 measured. Between the second output OUT2 and the reference potential G, an accumulator 4 is turned on.
  • the battery voltage U A is measured by means of a battery voltage measuring unit 5 c of the controller 5.
  • the DC output voltage U L is influenced by means of control 5.
  • the controller 5 comprises an influencing unit 5 d, which has a
  • Output voltage controller set an increased setpoint when a drop in the charging current I L is detected. On the other hand, if the charging current I L increases because, for example, the load 3 consumes less current, the output voltage regulator is given a lowered nominal value.
  • FIG. 2 essentially corresponds to that in FIG. 1, with the difference that a first diode D 1 is arranged between the second output OUT 2 and the load 3.
  • the anode is connected to the second output OUT2, so that current flows from the accumulator 4 into the load 3 as soon as the DC output voltage U L drops below the accumulator voltage U A.
  • a second diode D2 is arranged in Fig. 3 in the charging power line of the accumulator 4, wherein this for a
  • Another switch can be used, which is switched off by the controller in buffer mode and thereby interrupts the charging power line.
  • FIG. 4 A circuit variant for preventing a deep discharge of the accumulator 4 is shown in Fig. 4.
  • the drawn in FIGS. 2 and 3, the first diode is replaced by a first switch Sl, which is controlled by means of control 5. If the supply by the power unit 1 is omitted, the controller 5 is further supplied by the accumulator 4.
  • the first switch Sl is thus also at
  • FIG. 1 Another circuit variant with deep discharge protection is shown in FIG. In this case, instead of a first switch S1, a first diode D1 is arranged again, and immediately before the accumulator 4, a second switch S2 is provided, controlled by means of control 5. In addition, a supply V for the controller 5 from the first output OUT1
  • the battery 4 In buffer mode, if necessary, the battery 4 is de-energized by switching off the second switch S2 and thus protected against total discharge.
  • the circuit variant shown in FIG. 6 essentially corresponds to that in FIG. 5, but the first diode D 1 is connected to a first controllable by means of a controller 5
  • Battery conditioning sets optimized charging and discharging pulses to extend the life of the accumulator 4.
  • the first switch Sl can be closed to the
  • This circuit also provides deep discharge protection by the second switch S2 is opened.
  • FIG. 1 A further circuit variant with a second switch S2 for protection against over-discharge is shown in FIG.
  • an auxiliary switch SH is arranged, which allows a complete separation of the controller 5 from the accumulator 4. This ensures that even during a longer interruption of operation no discharge of the accumulator 4 by voltage divider of
  • Accumulator voltage measuring unit 5c takes place.
  • the accumulator 4 is thus enabled by all possible consumers.
  • the DC output voltage U L is not raised, but lowered below the battery voltage U A. This results in a current flow from the accumulator 4 through the load circuit.
  • a test load is usually connected to the accumulator at predetermined intervals and brought about a short-term load or the current flowing load current used as a load.

Abstract

L'invention concerne une alimentation électrique comportant une commande (5) et une partie de puissance (1). Une tension continue de sortie (UL) est présente à une première sortie (OUT1) de la partie de puissance (1) sur laquelle on peut brancher une charge (3) présentant une consommation de courant variable. Une deuxième sortie (OUT2) de la partie de puissance (1) est amenée à un dispositif de mesure, un accumulateur (4) étant branché sur cette deuxième sortie (OUT2). Par ailleurs, un courant de charge (IL) ou un courant de décharge de l'accumulateur (4), mesuré au moyen du dispositif de mesure, est réglé par une commande de la tension continue de sortie (UL). Il en résulte que le courant de charge ou le courant de décharge de l'accumulateur (4) peut être déterminé également sans avoir son propre sous-ensemble d'alimentation non interruptible.
EP11720071.7A 2010-06-01 2011-05-05 Alimentation électrique et procédé de fonctionnement de ladite alimentation électrique Ceased EP2577838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA885/2010A AT509967B1 (de) 2010-06-01 2010-06-01 Stromversorgung und verfahren zum betreiben der stromversorgung
PCT/EP2011/057173 WO2011151124A1 (fr) 2010-06-01 2011-05-05 Alimentation électrique et procédé de fonctionnement de ladite alimentation électrique

Publications (1)

Publication Number Publication Date
EP2577838A1 true EP2577838A1 (fr) 2013-04-10

Family

ID=44118985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11720071.7A Ceased EP2577838A1 (fr) 2010-06-01 2011-05-05 Alimentation électrique et procédé de fonctionnement de ladite alimentation électrique

Country Status (6)

Country Link
US (1) US9774214B2 (fr)
EP (1) EP2577838A1 (fr)
CN (1) CN102906962B (fr)
AT (1) AT509967B1 (fr)
RU (1) RU2012157749A (fr)
WO (1) WO2011151124A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013007704B4 (de) 2013-05-03 2023-06-01 Volkswagen Aktiengesellschaft Batterieschutz mittels aktivem Stromsensor
CN106774761A (zh) * 2016-11-25 2017-05-31 郑州云海信息技术有限公司 一种供电装置及其供电方法、服务器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5528149A (en) * 1994-12-23 1996-06-18 International Business Machines Corporation Test circuit for back-up battery
GB2310089A (en) * 1996-02-08 1997-08-13 Nokia Telecommunications Oy Battery charging; back-up power supply
US5969436A (en) * 1998-02-27 1999-10-19 Lucent Technologies Inc. Connect/disconnect circuit for a reserve battery and method of operation thereof
DE202008002173U1 (de) * 2008-02-16 2008-07-10 Bacic, Robert Stromspeichereinheit

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US3828278A (en) * 1973-07-13 1974-08-06 Motorola Inc Control circuit for disabling mos oscillator
DE3410684A1 (de) * 1984-03-23 1985-10-03 Dieter Gräßlin Feinwerktechnik, 7742 St Georgen Elektronisch gesteuerter induktiver spannungswandler
US4672293A (en) * 1985-08-26 1987-06-09 Crampton Timothy P Power-supply/battery back-up power supply/battery charger combination
JPH0576141A (ja) * 1991-09-13 1993-03-26 Fujitsu Ltd 直流電源の立ち上がり特性改善装置
US5254930A (en) 1992-06-10 1993-10-19 Digital Equipment Corporation Fault detector for a plurality of batteries in battery backup systems
WO1994013057A1 (fr) 1992-11-27 1994-06-09 Living Image Technology Pty. Ltd. Circuit convertisseur de puissance
JPH07194027A (ja) * 1993-12-27 1995-07-28 Hitachi Ltd 無停電電源装置
JP3069498B2 (ja) * 1994-09-01 2000-07-24 富士通株式会社 充放電装置および電子機器
DE4435005A1 (de) * 1994-09-30 1996-04-11 Boeke & Walterfang Gmbh Schaltung zur Stromversorgung
JP2002369407A (ja) * 2001-06-06 2002-12-20 Hitachi Ltd ピークカット機能付きバックアップ電源
JP2004312849A (ja) * 2003-04-04 2004-11-04 Sanyo Denki Co Ltd 蓄電池劣化判定回路付無停電給電装置
CN1316710C (zh) 2003-05-13 2007-05-16 长沙交通学院 蓄电池或超级电容的充放电均衡方法与装置
JP2004364445A (ja) * 2003-06-06 2004-12-24 Matsushita Electric Ind Co Ltd バックアップ電池の放電制御装置
JP2005016958A (ja) * 2003-06-23 2005-01-20 Fanuc Ltd モータ駆動装置
JP4535298B2 (ja) * 2008-04-07 2010-09-01 トヨタ自動車株式会社 車両の電源装置
JP5210776B2 (ja) * 2008-09-25 2013-06-12 株式会社日立製作所 リチウムイオン二次電池の充放電制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5528149A (en) * 1994-12-23 1996-06-18 International Business Machines Corporation Test circuit for back-up battery
GB2310089A (en) * 1996-02-08 1997-08-13 Nokia Telecommunications Oy Battery charging; back-up power supply
US5969436A (en) * 1998-02-27 1999-10-19 Lucent Technologies Inc. Connect/disconnect circuit for a reserve battery and method of operation thereof
DE202008002173U1 (de) * 2008-02-16 2008-07-10 Bacic, Robert Stromspeichereinheit

Non-Patent Citations (1)

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Title
See also references of WO2011151124A1 *

Also Published As

Publication number Publication date
AT509967B1 (de) 2015-09-15
AT509967A1 (de) 2011-12-15
CN102906962A (zh) 2013-01-30
US20130119765A1 (en) 2013-05-16
RU2012157749A (ru) 2014-07-20
US9774214B2 (en) 2017-09-26
CN102906962B (zh) 2016-04-13
WO2011151124A1 (fr) 2011-12-08

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