WO2007085495A1 - Alimentation ininterrompue en tension - Google Patents

Alimentation ininterrompue en tension Download PDF

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Publication number
WO2007085495A1
WO2007085495A1 PCT/EP2007/000783 EP2007000783W WO2007085495A1 WO 2007085495 A1 WO2007085495 A1 WO 2007085495A1 EP 2007000783 W EP2007000783 W EP 2007000783W WO 2007085495 A1 WO2007085495 A1 WO 2007085495A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
power supply
consumer
input
connectable
Prior art date
Application number
PCT/EP2007/000783
Other languages
German (de)
English (en)
Inventor
Gerhard Wecht
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2007085495A1 publication Critical patent/WO2007085495A1/fr

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
    • H02J9/061—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
    • 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
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Definitions

  • the invention derives from the technical field of supplying electrical consumers with energy and relates to a device or a method for as uninterruptible power supply according to the preamble of the independent claims.
  • the invention is concerned with a decentralized and Verhraijoherrien arranged power supply, which provides an alternative electrical voltage when switching off a central supply voltage.
  • the document WO 97/50170 shows a load supplied by means of a three-phase network (FIG. 1).
  • UPSs (1) are connected upstream.
  • the internal structure of such a UPS is shown roughly schematically in FIG.
  • the UPS has voltage inputs to connect external power sources (battery 3, 3-phase input) and a voltage output to connect an external load (load 2).
  • the disadvantage of this device is that the power electronics indicated by reference numeral 22 must be constantly in operation to provide a power supply for the load either from the three-phase supply network or from the battery.
  • a power failure inevitably leads to the UPS operation of the consumer, i. for the delayed shutdown of the consumer, because the battery has only a limited capacity for voltage buffering available.
  • a solution to eliminate these disadvantages is not apparent from the document.
  • the invention has for its object to realize a power supply, which in the case of a power failure does not necessarily lead to UPS operation at the consumer and which can be integrated with the least possible wiring in a power supply network, so that a decentralized Energy supply near the consumer without local energy buffering (battery / rechargeable battery) is possible.
  • a switching means is understood to mean a semiconductor-based electronic circuit breaker or a mechanical circuit breaker (relay, etc.).
  • the switch may comprise a plurality of inputs, so that can be chosen between several voltages to the load supply. Theoretically, several outputs could be included to switch between different loads. Alternatively, several switches could be controlled synchronously. In case of imminent failure of a voltage supply connected to a voltage supply, an alternative voltage supply can thus be selected. Such a failure does not necessarily result in the use of additional external voltage sources for UPS Bethebsmode the consumer and thus not in the short term to its shutdown. A time-delayed shutdown (ie a UPS operation) is only required if the monitoring device reports the failure of the external supply voltages.
  • a power supply network can easily be realized by means of a central, buffered (battery / battery) UPS and several decentralized devices according to the invention without own energy storage by these are connected by means of each first input to the central UPS and by means of the second input to an alternative voltage source.
  • the central UPS can be a standard UPS with a suitably dimensioned energy buffer.
  • UPSs shown in the prior art do not include an active switchover capability between different supply voltages, nor do they avoid a local requirement of energy storage.
  • a solution of the object according to the invention using a known from the prior art UPS is therefore not readily possible.
  • the monitoring of the voltage inputs is independent of each other, this ensures an increased operational and reliability.
  • the device according to the invention comprises an interface for transmitting the monitoring result to the externally connectable consumer in order to activate the UPS mode if necessary.
  • UPS mode is understood to mean a mode of operation of the consumer in which it prepares its shutdown. This process includes, among other things, data backup and safe stopping of all running processes.
  • the interface should be designed in the form of a serial or parallel interface or a network interface, as long as the consumer has appropriate connections ready. A PC connected as a consumer could thus permanently query the state of the power supply and, if necessary, derive appropriate measures, such as switching off the system and securing data.
  • the uninterruptible power supply comprises a device for converting voltages, preferably an AC / DC power supply and / or a DC / AC power supply. It can then be used to supply a consumer different external AC or DC voltages and connected to the voltage inputs.
  • the advantages according to the invention also come into play when the connectable consumer is components (control / regulation or the like) of a drive system. Ongoing processes can thus be safely continued or stopped.
  • a voltage input of the device according to the invention with the voltage output of an example spaced second uninterruptible buffered power supply is electrically connected, can be dispensed with a local energy storage, since an energy buffering is ensured by means of the possibly air-conditioned UPS.
  • the device according to the invention comprises a switchgear cabinet, wherein a voltage input is connected to the output of a power supply unit internal to the cabinet, use of the switchgear cabinet voltage can be used as an alternative power supply.
  • a device can be operated in a network of power supplies in such a way that a first external voltage source is connected to the first voltage input and a second external voltage source is connected to the second voltage input, wherein a consumer connected to the voltage output by means of the first voltage is connected by means of a first position of the switching means is fed and detected at a detected by the monitoring device burglary or failure of the first external voltage switching by means of the selector switch to the second external voltage source.
  • the UPS operating mode of the consumer need only be initiated when foreseeable is that the second external power source is only temporarily available. An increased availability of the system is guaranteed.
  • the second external voltage source is an energy store which can only temporarily ensure a voltage supply
  • the monitoring result is communicated to the connected consumer by means of an interface encompassed by the device according to the invention by the monitoring device, this monitoring result being based on the first one and / or second voltage input voltage applied relates.
  • the periphery for example a connected, intelligent electrical consumer, can then initiate appropriate measures.
  • the monitoring device also monitors all no-load voltages or switches from an optionally present power supply to an alternative external voltage without a power supply. That is, the existing power supply is not charged.
  • This solution has in contrast to the prior art, the effect that the life of the power supply is increased because the power electronics of the device according to the invention may need to be activated only in case of failure of the alternative power supply.
  • the heating of power components in the central UPS and the device according to the invention is minimized because a redundant power source can be connected, which does not have to take the power parts to complete.
  • the object of the invention is also achieved by means of a network which comprises a plurality of decentralized power supplies according to the invention and a central UPS standard UPS with at least one energy storage and a voltage output, wherein in each case a plurality of power supplies according to the invention connected in parallel to the voltage output of the standard UPS by means of a first external voltage input and wherein the respective second external voltage input is connected to a further external voltage source.
  • the wiring complexity of such networks is usually significant, because between the central standard UPS and the decentralized power supplies data regarding the current operating state of the central standard UPS (mains voltage active or inactive) must be replaced.
  • the power sections of the central and remote devices may need to permanently provide the power of the connected devices, resulting in significant self-heating and a cut-a-lot.
  • the wiring effort between the central UPS and the decentralized power supplies is reduced only to the connection for transmitting the electrical energy.
  • the transmission of power-down signals o.a. is no longer necessary, at least between the central UPS and the power supply according to the invention, because the voltage monitoring is now implemented decentrally by the power supply according to the invention.
  • FIG. 1 shows a UPS network with several devices according to the invention and Figure 2 shows schematically the internal structure of a device according to the invention.
  • FIG. 1 shows a power supply network with a central UPS 30 with energy storage (rechargeable battery) designed as an external voltage source, whose voltage output 31 is connected to the voltage input 14b of decentralized and parallel-connected several devices 10 according to the invention without energy storage.
  • an external voltage source 40 is shown, which is connected to the voltage inputs 14a, and the voltage output 19 for connection of external consumers (indicated here only by an arrow).
  • the 230 volt input voltage of the AC / DC power supply of the invention Device 10 is identical to the 230 volt output voltage of central UPS 30.
  • a central UPS 30 generates as output voltage at the output 31 a buffered AC voltage. This voltage then represents, for example, an input voltage at input 14b of the device 10 according to the invention. From this input voltage, the device 10 according to the invention can generate a DC voltage (eg by 24 volts) by means of the integrated AC / DC power supply 11 (see FIG For example, an industrial PC can be supplied. The operating system of the connected industrial PC must receive information about it if the power supply at input 14b is only available for a limited time. This is done by means of the data interface 18, which is implemented between the decentralized UPS 10 and the industrial PC (not shown in FIG. 1).
  • the information sent to the PC includes, for example, a message that the shutdown of the system and the backup of data is to initiate., At the same time starts a timer of the device 10 according to the invention, which after a certain time, the output voltage of the AC / DC power supply 11 by the switch 12 b, wegschaltet from the voltage output 19. The voltage output 19 of the decentralized UPS then remains without voltage until a voltage is applied to the voltage input 14a.
  • Figure 2 shows internal components of the device 10 according to the invention namely a power supply 1 1, a selector switch 12a / b, a monitoring device 13 two voltage inputs 14a / b, two measuring devices 15 and 16, a selector switch operation line 17, a data interface 18 and a supply voltage output 19.
  • a External load can be connected by means of the voltage output 19 and the data interface 18 with the uninterruptible power supply 10.
  • External voltage sources 30/40 can be connected to the voltage inputs 14a / b.
  • the power supply 10 shown in this particular embodiment comprises an AC input 14b for connection to an external 230 volt AC source 30, for example supplied by a central UPS, as shown in FIG.
  • This 230 volt AC voltage is converted by means of an AC / DC power supply into a DC voltage, for example 24 volts.
  • a DC voltage for example 24 volts.
  • an external DC voltage is connected, for example, also 24 volts. Both DC voltages are thus selectable by means of the selector switch 12a / b and can selectively on the voltage output. 19 are switched. This switching takes place in accordance with an override condition, which the monitoring device 13 delivers. In order to carry out the monitoring, the level of the DC voltages is measured by means of measuring devices 15, 16 and supplied to the monitoring device 13.
  • the switch 12a / b receives a signal for switching in case of failure / collapse of the monitored voltages, wherein the monitoring of the voltage inputs (14a, 14b) takes place independently of each other by means of separate measuring means 15, 16.
  • a choice between at least two alternative voltage sources 30 and 40 is possible, which considerably improves the reliability of operation.
  • the monitoring device 13 comprises an interface 18 for transmitting the monitoring result or other messages to the externally connectable consumer 20. If the external consumer 20 is a network-capable consumer 20, it makes sense to use a network interface. Other data interfaces known in the art (parallel / serial) are also suitable. Likewise, simple two-wire connections would be conceivable.
  • the device 10 is preferably installed in a control cabinet in order to supply consumers located there, the voltage input for external voltages 14a being connected to the DC voltage output of a power supply-connected power supply unit.
  • the DC voltage 40 of the cabinet power supply is switched without power by means of the switch to the connected load 20.
  • the 24V output voltage of the AC / DC power supply 11 is disconnected from the connected load 20.
  • the built-in AC / DC power supply is thus idle and produces no supply-related self-heating.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

La présente invention a trait au domaine technique de l'alimentation en énergie de consommateurs électriques et concerne un dispositif (10) conçu pour assurer une alimentation ininterrompue en tension. L'objectif de cette invention est de mettre au point un dispositif de ce type, qui présente une durée de vie plus longue et une consommation de puissance réduite, qui ne provoque pas forcément une coupure des consommateurs (20) en cas de panne de courant et qui peut être intégré à un réseau d'alimentation en énergie au moyen d'un câblage le plus simple possible. A cette fin, la présente invention met en oeuvre un dispositif (10) comprenant un commutateur de sélection (12a, 12b) qui est relié à l'entrée de tension (14a, 14b) et à la sortie de tension (19) de manière électroconductrice, ainsi qu'un dispositif de contrôle (13) qui est conçu pour contrôler l'entrée de tension (14a, 14b) par rapport à des variations de tension, le commutateur de sélection (12a, 12b) étant automatiquement actionné en fonction du résultat du contrôle.
PCT/EP2007/000783 2006-01-30 2007-01-30 Alimentation ininterrompue en tension WO2007085495A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004481A DE102006004481A1 (de) 2006-01-30 2006-01-30 Unterbrechungsfreie Spannungsversorgung
DE102006004481.9 2006-01-30

Publications (1)

Publication Number Publication Date
WO2007085495A1 true WO2007085495A1 (fr) 2007-08-02

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Application Number Title Priority Date Filing Date
PCT/EP2007/000783 WO2007085495A1 (fr) 2006-01-30 2007-01-30 Alimentation ininterrompue en tension

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WO (1) WO2007085495A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033604A1 (de) * 2009-07-17 2011-03-24 Siemens Aktiengesellschaft Elektrische Netzanordnung zur Stromversorgung
EP2357484B1 (fr) * 2010-01-25 2013-03-13 Siemens Aktiengesellschaft Procédé de diagnostic d'une connexion électrique et unité de sortie

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231029A (en) * 1978-02-28 1980-10-28 Westinghouse Electric Corp. Automatic transfer control device and frequency monitor
US4400626A (en) * 1982-02-24 1983-08-23 Rockwell International Corporation Power distribution system with means for sensing emergency condition and reducing standby power
GB2160722A (en) * 1984-05-25 1985-12-24 Toshiba Kk Uninterruptible power supply
US5519295A (en) * 1994-04-06 1996-05-21 Honeywell Inc. Electrically operated actuator having a capacitor storing energy for returning the actuator to a preferred position upon power failure
US5621254A (en) * 1993-06-25 1997-04-15 Kabushiki Kaisha Aichi Denki Seisakusho Uninterruptible power switching method and apparatus
US6150736A (en) * 1992-02-28 2000-11-21 Brill; Kenneth G. Redundant electrical power source, distribution and consumption system
US20010045779A1 (en) * 2000-05-26 2001-11-29 Huey Lee Intelligent power system
EP1306958A2 (fr) * 2001-10-26 2003-05-02 Onan Corporation Convertisseur avec convertisseur courant continu survolteur
US20040169421A1 (en) * 2003-02-28 2004-09-02 Eaton Zane C. Method and apparatus for sensing voltage in an automatic transfer switch system
US20060050465A1 (en) * 2004-09-08 2006-03-09 Delta Electronics, Inc. Uninterruptible power supply apparatus controllable by monitoring apparatus via network

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231029A (en) * 1978-02-28 1980-10-28 Westinghouse Electric Corp. Automatic transfer control device and frequency monitor
US4400626A (en) * 1982-02-24 1983-08-23 Rockwell International Corporation Power distribution system with means for sensing emergency condition and reducing standby power
GB2160722A (en) * 1984-05-25 1985-12-24 Toshiba Kk Uninterruptible power supply
US6150736A (en) * 1992-02-28 2000-11-21 Brill; Kenneth G. Redundant electrical power source, distribution and consumption system
US5621254A (en) * 1993-06-25 1997-04-15 Kabushiki Kaisha Aichi Denki Seisakusho Uninterruptible power switching method and apparatus
US5519295A (en) * 1994-04-06 1996-05-21 Honeywell Inc. Electrically operated actuator having a capacitor storing energy for returning the actuator to a preferred position upon power failure
US20010045779A1 (en) * 2000-05-26 2001-11-29 Huey Lee Intelligent power system
EP1306958A2 (fr) * 2001-10-26 2003-05-02 Onan Corporation Convertisseur avec convertisseur courant continu survolteur
US20040169421A1 (en) * 2003-02-28 2004-09-02 Eaton Zane C. Method and apparatus for sensing voltage in an automatic transfer switch system
US20060050465A1 (en) * 2004-09-08 2006-03-09 Delta Electronics, Inc. Uninterruptible power supply apparatus controllable by monitoring apparatus via network

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