WO2003015238A1 - Installation domestique comportant une connexion a un reseau de courant alternatif - Google Patents

Installation domestique comportant une connexion a un reseau de courant alternatif Download PDF

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Publication number
WO2003015238A1
WO2003015238A1 PCT/AT2002/000207 AT0200207W WO03015238A1 WO 2003015238 A1 WO2003015238 A1 WO 2003015238A1 AT 0200207 W AT0200207 W AT 0200207W WO 03015238 A1 WO03015238 A1 WO 03015238A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
voltage source
gsq
component
alternating current
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
PCT/AT2002/000207
Other languages
German (de)
English (en)
Inventor
Harald Schweigert
Stefan Gut
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 Oesterreich
Original Assignee
Siemens AG Oesterreich
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 Oesterreich filed Critical Siemens AG Oesterreich
Publication of WO2003015238A1 publication Critical patent/WO2003015238A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J4/00—Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

Definitions

  • the invention relates to a domestic system with a connection to an alternating current network and with a local direct voltage source, with devices which are provided for connection to alternating current and, in addition to at least one alternating current component, contain at least one hybrid component which can be operated both with alternating and direct voltage ,
  • Decentralized electrical energy generators with process-related DC voltage outputs are becoming increasingly important.
  • the electrical energy generated with such DC voltage sources can on the one hand locally, for. B. be used in a household, and on the other hand, provided there are sufficient energy reserves, are supplied to a public AC network.
  • the DC voltage of the local DC voltage source is converted into an AC voltage with the aid of inverters and fed into the AC network or supplied to the in-house consumers as AC voltage.
  • the at least one AC component of the device can be connected to the AC network via a controller and the at least one hybrid component can be connected to the DC voltage source via the controller.
  • the invention thus takes advantage of the fact that many devices, especially those in households, contain components that can be easily operated with direct current, for. B. resistance heaters.
  • the hybrid component can optionally be connected to the AC network or to the DC voltage source by means of the controller.
  • the hybrid component e.g. B. heating a device, as usual to be operated on the AC network.
  • control can be supplied with a status signal relating to the availability of the DC voltage source and the control is set up to apply the hybrid component to the DC voltage source or to the AC network as a function of the status signal.
  • the switchover is simplified or automated, the level of the DC voltage, for example, being usable as the status signal in the simplest case.
  • the invention is particularly expedient if the DC voltage source is a solar power system or if the DC voltage source is a fuel cell unit, since in these cases, particularly in the case of a solar power system, the efficiency is a sensitive variable.
  • the DC voltage source is a fuel cell unit
  • switching to alternating current can be avoided at all.
  • the invention also relates to an electrical device for a domestic system according to the invention, which contains at least one AC component and at least one hybrid component which can be operated with both AC and DC voltage.
  • the AC component is connected to a connection for AC voltage and the hybrid component is connected to a connection for DC voltage that is separate therefrom.
  • control is contained in the device in the case of such an electrical device.
  • a device can then be sold or supplied with a direct voltage and with an alternating voltage connection and the control contained therein and is suitable for immediate use.
  • an AC network WSN for example with a voltage of 230 volts
  • a DC voltage source GSQ here implemented with a fuel cell unit BSZ, which may deliver a DC voltage of 240 volts, for example.
  • Devices of the domestic system are to be operated from these voltage sources, here the example of a washing machine WAM is shown, which in particular contains a heater HZG, namely an electrical resistance heater, a drive motor MOT and a pump PUM.
  • alternating current components namely the motor MOT and the pump PUM on the one hand
  • hybrid components here the heating HZG, whereby the hybrid components have the characteristic that they can be operated in the same way on alternating voltage or on direct voltage.
  • a control STE is provided, which can also contain a microprocessor, for example.
  • This control can be contained in the device WAM itself or it can be part of the house system or the controller can also be provided “distributed”, namely with components in the house system and with other components in the device WAM, it should be noted that at Many devices, in particular also in washing machines, have a comparatively complex electronic control which is expanded accordingly so that it has the functions of the control STE described in more detail here.
  • a part of the control STE or the device WAM is also a switch SWI, which, upon a switch-on command e from the control, applies the direct voltage of the direct voltage source GSQ to the hybrid component HZG or the hybrid components.
  • a changeover switch UMS is also provided, which either applies the direct voltage of the direct voltage source GSQ (via the switch SWI) to the hybrid component HZG or the alternating voltage which is led here from the alternating current network WSN via the control STE to the changeover switch UMS.
  • the changeover switch UMS is controlled by the control STE via a changeover command u, it being noted that the presence of a changeover switch UMS could eliminate the controlled switch SWI.
  • the control STE is supplied with a status signal s which relates to the availability of the DC power source GSQ.
  • This status signal can relate, for example, to the level of the available DC voltage or else to the remaining capacity, for example a rechargeable battery charged by a solar system.
  • the control STE can connect the hybrid component HZG to the DC voltage source GSQ or to the AC network WSN.
  • an activation command a can be sent to the local DC voltage source GSQ so that it is put into operation and supplies the required DC voltage energy.
  • This will be particularly useful for fuel cell units, since they are not in constant operation.
  • a fuel cell BSZ is shown in the exemplary embodiment shown, this does not preclude the fact that, as already mentioned, a solar system with a buffer accumulator can also be used as the DC voltage source GSQ, or combinations of fuel cell units with a solar system or the like.
  • the invention is suitable for all electrical appliances which contain both at least one AC component and at least one hybrid component.
  • an electrical device suitable for the invention has a connection for AC voltage, via which the AC components can be connected to the AC network WSN, and also a separate connection for DC voltage, which leads to the hybrid components.
  • the AC voltage input is only used for control and drive consumption when DC voltage energy is available, which would result in significantly higher manufacturing costs when designed for both supply systems.
  • An advantage of the house system according to the invention can also be seen in the fact that the consumers can be "synchronized" with the DC voltage source.
  • the energy source is synchronized with the consumer, ie for example a fuel cell is switched on when an electric cooker is operating, or the Consumers are synchronized to the energy source, for example dishwashing with the help of an electric dishwasher will only take place if solar or fuel cell energy is available.
  • This “intelligence” can also be placed in the control STE indicated in the drawing. In the example shown, it was assumed that the level of the available DC voltage is approximately equal to the effective value of the AC voltage of the AC network WSN. If the DC voltage of the DC voltage source GSQ is significantly lower, e.g. B. is 24, 48 or 60 volts, you can provide that in particular via the control STE branches of a resistance heater are connected in parallel or in series, so that the lower level of the DC voltage can be taken into account.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne une installation domestique comportant une connexion à un réseau de courant alternatif (WSN), ainsi qu'une source de tension continue locale (GSQ). Ladite installation comporte également des appareils (WAM) servant à la connexion au courant alternatif, et contenant en plus d'au moins un composant à courant alternatif (MOT, PUM), au moins un composant hybride (HZG) pouvant fonctionner en tension alternative et continue. Le ou les composants à courant alternatif (MOT) de l'appareil (WAM) peuvent être reliés au réseau de courant alternatif (WSN) par l'intermédiaire d'une commande (STE), et le ou les composants hybrides (HZG) peuvent être reliés à la source de tension continue (GSQ) par l'intermédiaire de la commande.
PCT/AT2002/000207 2001-08-10 2002-07-15 Installation domestique comportant une connexion a un reseau de courant alternatif Ceased WO2003015238A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0126101A AT412434B (de) 2001-08-10 2001-08-10 Hausanlage mit einem anschluss an ein wechselstromnetz
ATA1261/2001 2001-08-10

Publications (1)

Publication Number Publication Date
WO2003015238A1 true WO2003015238A1 (fr) 2003-02-20

Family

ID=3687897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2002/000207 Ceased WO2003015238A1 (fr) 2001-08-10 2002-07-15 Installation domestique comportant une connexion a un reseau de courant alternatif

Country Status (2)

Country Link
AT (1) AT412434B (fr)
WO (1) WO2003015238A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458155A2 (fr) * 1990-05-19 1991-11-27 ABBPATENT GmbH Procédé et dispositif de surveillance centralisée de l'état de lampes branchées en parallèle
US5117122A (en) * 1989-01-19 1992-05-26 Hogarth Peter T Integrated outlet for communication and electrical power transmissions with noise reducing characteristics
WO1997033355A1 (fr) * 1996-03-07 1997-09-12 Nextek Power Systems, Inc. Systeme modulaire de gestion d'energie et procede correspondant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117122A (en) * 1989-01-19 1992-05-26 Hogarth Peter T Integrated outlet for communication and electrical power transmissions with noise reducing characteristics
EP0458155A2 (fr) * 1990-05-19 1991-11-27 ABBPATENT GmbH Procédé et dispositif de surveillance centralisée de l'état de lampes branchées en parallèle
WO1997033355A1 (fr) * 1996-03-07 1997-09-12 Nextek Power Systems, Inc. Systeme modulaire de gestion d'energie et procede correspondant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GOETZBERGER A ET AL: "The PV/hydrogen/oxygen-system of the self-sufficient solar house Freiburg", PROCEEDINGS OF THE PHOTOVOLTAIC SPECIALISTS CONFERENCE. LOUISVILLE, MAY 10 - 14, 1993, NEW YORK, IEEE, US, vol. CONF. 23, 10 May 1993 (1993-05-10), pages 1152 - 1158, XP010113244, ISBN: 0-7803-1220-1 *

Also Published As

Publication number Publication date
ATA12612001A (de) 2004-07-15
AT412434B (de) 2005-02-25

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