EP1031003A1 - Dispositif et procede destines au fonctionnement de refrigerateurs et congelateurs - Google Patents

Dispositif et procede destines au fonctionnement de refrigerateurs et congelateurs

Info

Publication number
EP1031003A1
EP1031003A1 EP98963339A EP98963339A EP1031003A1 EP 1031003 A1 EP1031003 A1 EP 1031003A1 EP 98963339 A EP98963339 A EP 98963339A EP 98963339 A EP98963339 A EP 98963339A EP 1031003 A1 EP1031003 A1 EP 1031003A1
Authority
EP
European Patent Office
Prior art keywords
freezer
household
cooling
freezers
peak
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.)
Withdrawn
Application number
EP98963339A
Other languages
German (de)
English (en)
Inventor
Werner Siol
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.)
Etc Energietechnik und Chemie & Co KG GmbH
Original Assignee
Etc Energietechnik und Chemie & Co KG 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 Etc Energietechnik und Chemie & Co KG GmbH filed Critical Etc Energietechnik und Chemie & Co KG GmbH
Publication of EP1031003A1 publication Critical patent/EP1031003A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/07—Remote controls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building
    • H02J2310/14—The load or loads being home appliances
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
    • 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
    • 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
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04S20/242—Home appliances
    • 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
    • Y04S20/242—Home appliances
    • Y04S20/244—Home appliances the home appliances being or involving heating ventilating and air conditioning [HVAC] units

Definitions

  • the invention relates to a device for operating a household refrigerator or freezer.
  • the demand for electrical energy must always be met in a power supply network.
  • One way of providing additional electricity in times of high demand is in particular by storing excess energy, for example in pumped storage.
  • larger reserve power plants are operated nowadays, which can be switched on when there is an increased energy requirement.
  • the electricity produced by these power plants is quite expensive. It also pollutes the environment if large power plants have to run in reserve so that they can be quickly connected to the grid if necessary.
  • Another way of balancing generation and demand for electricity is to control demand in a targeted manner.
  • electrical devices such as night storage heaters, are to be mentioned, with which the demand increases low demand times is increased.
  • billing models for large customers that can be used to buy the desired demand behavior from the electricity supply company.
  • refrigerators and freezers with cold storage are known from EP 0 651 214. These devices work with a cold store, which keeps the inside of the device at a low temperature level. The arrangement also allows longer periods of rest to be bridged, for example when used in a hotel.
  • refrigerators or freezers that are only operated with night-time electricity and whose periods of operation and rest are therefore fixed, have a limited use value. It is therefore not possible with such a freezer to freeze large quantities of frozen goods during the day, because this would require a disproportionately large amount of cold storage. The same applies to a refrigerator. Incidentally, there are also phases during the day with greatly reduced energy demand, which should be used for the operation of electrical household appliances in order to achieve as uniform a demand as possible.
  • Modern household freezers are well insulated and, as already mentioned, some have cold storage so that they protect the frozen goods even in the event of a power failure of 24 hours or longer. It is irrelevant for such freezers if the cooling unit is not running for a while. With the appropriate equipment, long periods of time can be bridged. Even modern refrigerators are very well insulated so that they can also easily bridge longer breaks without endangering the refrigerated goods. Such devices can easily withstand switching off of the cooling unit for more than an hour without any change or after being equipped with small cold stores.
  • the object of the present invention is to provide a device which largely enables operation with excess current in times of low demand, but which does not restrict the use value of the devices.
  • a device which contains means for remote control, in particular for influencing the current consumption behavior, of the refrigerator or freezer by means of control signals transmitted by the electricity supplier.
  • the device according to the invention is generally designed as a component of a household refrigerator or freezer, but can also be designed as an additional device with which existing household refrigerators or freezers can be provided. Even if the invention should lead to additional consumption in individual cases, however, it forms an overall economic and ecological improvement, since the peak loads have to be served by the power plants with expensive generators which are more demanding on the environment.
  • Means can be provided for receiving control signals transmitted via the power line.
  • this opens up very simple options for possibly regional fine-tuning of the power consumption and reaches every consumer in the power grid, including the household cooling devices to be controlled.
  • the electricity supplier incurs only low control costs because the existing network is only used for simple signal transmission must be equipped. The requirements for such a data transmission are significantly lower than they arise from the use of the electricity network for telecommunication currently under discussion.
  • the potential of the power supply network to transport data in addition to electrical power is also sufficient for complicated control tasks.
  • the transmission of a few, few pulses is sometimes sufficient for the control of the cooling devices provided with a device according to the invention.
  • the device has means for receiving signals transmitted by telephone line or means for receiving radio signals.
  • the control by radio is quite simple and requires little effort on the part of the electricity supplier. The large number of controls already carried out by radio should be pointed out here.
  • the control of the radio clocks by the radio signal DCF77 is to be mentioned here as an example.
  • the effectiveness of the remote control is dependent on the respective operating state of the household refrigerator or freezer.
  • the procedure is such that the cooling unit of the household refrigerator or freezer can only be switched off by the remote control below a predetermined target temperature.
  • the cooling unit In the event of peak demand, a corresponding signal is sent out by the electricity supplier and the cooling unit is switched off. In this case, however, the switch-off or the prevention of switching on can only take place to the extent that the cooling space does not exceed a predetermined temperature. It the cooling unit can only be switched off remotely if the temperature falls below a specified target temperature.
  • cooling unit of the household refrigerator or freezer can be controlled by the remote control in a predetermined temperature range.
  • the cooling unit of the household cooling device can only be controlled by the power supply company in a predetermined temperature range. This means that some devices are not switched off even during peak load times because they have just been freshly loaded. Statistically speaking, these devices, which are in an extreme state, play only a subordinate role.
  • the cooling devices provided with the device according to the invention can thus be used without any restriction on comfort.
  • control signals with information about the expected time of the peak load can be received before the expected occurrence of a peak load and that the cooling unit of the household refrigerator or freezer is switched on Switching on and off is controlled in such a way that the expected peak load falls in a switch-off phase.
  • the device can be designed in such a way that the temperature in the household refrigerator or freezer is at a minimum value specified by the cooling setting at or shortly before the expected point in time. If the cold storage capacity is not sufficient to bridge a load peak without getting out of the desired temperature range, the device can also be designed such that the temperature in the household refrigerator or freezer is reduced by a predetermined temperature difference below or shortly before the expected point in time minimum value specified by the cooling setting.
  • a particularly favorable adaptation of the household refrigerator or freezer to the load profile of the power grid can be achieved by means which derive information about several load peaks within a predetermined period of time from the transmitted control signals and, depending on this, control the cooling unit in such a way that overlaps between the load peaks and Cooling phases are minimized.
  • a microcomputer-controlled cooling device can work as follows, for example: The electricity provider communicates to the cooling devices the periods in which as little electricity as possible is to be used. These guidelines are constantly updated. Each individual household cooling unit calculates a cooling cycle that is as gentle on the engine as possible, during which the cooling unit does not run or runs as little as possible in the specified periods. In this way, the most varied of device properties and the different loading levels of the devices can be optimally taken into account.
  • Example of use Shifting the cycle time of a household refrigerator without any significant intervention in the temperature limits. Assumption: A peak load of the power grid is expected between 8:00 a.m. and 8:30 a.m. The refrigerator has the following cooling cycle at the specified target temperature: 25 minutes cooling, 60 minutes defrosting. The cooling cycle is controlled during the night so that the cooling unit does not run between 7.45 a.m. and 8.45 a.m.
  • An advantageous embodiment of the device according to the invention is that a display device is provided which indicates the presence of a peak load. As a result, the user is able to adapt to the occurrence of load peaks when using the household refrigerator or freezer, insofar as this makes sense.
  • the device according to the invention can also be designed such that the household refrigerator or freezer is provided with a cold store, which is preferably sufficient for more than 30 minutes.
  • the household cooling devices according to the invention represent a reserve for the electricity provider on the supply side and on the demand side. These cooling devices therefore have a similar function to the storage power plants mentioned above, which are also used both on the supply and on the demand side.
  • the cooling devices according to the invention are particularly well suited to reducing the extreme demand peaks that occur during the day and, on the other hand, to bridge the times of low demand that also exist during the day.
  • Such household refrigerators with a useful content of approx. 60-600 1 are particularly interesting.
  • the manufacturer can set the delay to a fixed value that varies within the series.
  • a delay is also possible with the aid of a built-in random generator, which generates a random time delay when a control signal occurs.
  • a simultaneous start-up of the cooling units can also be prevented by only slowly shifting the switching temperatures.
  • Such a device can be switched in several stages: a first stage causes the cooling unit to switch on as rarely as possible. The temperature in the cold room is kept just below the set maximum value. Further stages effect normal operation. The temperature fluctuates around the set optimal value.
  • a final stage similar to a super cooling function, can induce more cooling, so that a cold reserve is built up. It is advisable to operate the cooling devices on the last stage and during the consumption peak on the first stage before an expected peak load, so that the devices do not consume any power during the peak consumption.
  • control signals which characterize load peaks
  • a further development of the method provides that a further control signal for announcing the peak load is sent before a control signal which characterizes the actual start of a peak load.
  • Control by area can also be advantageous and requires special circuits. In general, however, this is possible through a selection circuit on the device itself or through other regulations.
  • FIG. 8 shows a schematic representation of the program sequence in a microcomputer provided in the device according to FIG. 1,
  • Cooling devices with the device according to the invention in the time range of a peak load in the time range of a peak load.
  • load and time information 3 is transmitted from a power supplier 1 to a signal decoder 4 in a cooling device 2.
  • the output signal of the signal decoder 4 is fed to a microcomputer 6 which, together with a temperature sensor 8 located in a cooling cell 7 and the cooling unit 9, forms a control circuit.
  • the setting of a temperature selector switch 5 is also transmitted to the microcomputer 6.
  • the load and time information can consist of signals which mean the start, the end or the duration of peak loads. However, further information can also be contained, for example the expected time until the start of the next peak load, or relatively extensive information about peak loads, for example of a day. If necessary, the device according to FIG.
  • the 1 contains a display device 10 which indicates the presence of a peak load.
  • the regulation results from the controlled switching on and off of the cooling unit approximately the curve shown in FIG. 2, which oscillates between a lower temperature Tmin and an upper temperature Tmax. In modern cooling devices, the difference is, for example, approximately 3 ° C., the height being adjustable by means of the temperature selector switch 5 (FIG. 1). Under the curve in Fig. 2 by bars 11, 12, the respective switch-on time of the cooling unit is characterized, the bars 11 denoting the normal switch-on time.
  • the control of the cooling device is switched over in such a way that the temperature at most reaches a lower upper temperature Tmax '.
  • the switch-on phases 12 are correspondingly shorter. During this time, it is ensured that the refrigerated goods assume a relatively low temperature, so that during the subsequent switch-off phase, which comprises the peak load, the temperature of the refrigerator compartment does not exceed the upper temperature limit Tmax. After this switch-off phase 15, the regulation is then continued in the usual way.
  • FIG. 3 Such a regulation is shown schematically in FIG. 3. At 21 there is regulation in the limits between Tmin and Tmax and at 22 regulation in the limits Tmin and Tmax '.
  • the signal decoder 4 actuates the switch 24, which short-circuits the control 22, so that the cooling unit 9 is controlled by the control 22 after receiving a control signal which announces a peak load.
  • Fig. 4 shows the uninfluenced process of a
  • Refrigerator control where the temperature T fluctuates between 2 ° C and 5 ° C.
  • the switch-on phases are through again
  • the peak load is announced at time 25, whereupon the control passes into shorter intervals, so that the peak load enters a switch-off phase. In the case according to FIG. 5, this is achieved without exceeding or falling below the temperature limits.
  • the cooling temperature can be reduced according to FIG. 6 when an announcement 26 arrives in time, for example to a lower temperature limit of 1 ° C. A longer switch-off phase is then available when the load peaks.
  • FIG. 7 shows a case in which a signal 27 announcing the load peak is received immediately before a load peak.
  • the cooling unit is switched off immediately in the situation shown.
  • the subsequent switch-off phase is sufficient for the upper temperature of 5 ° C to be reached only after the peak load has ended.
  • the parts 31, 32, 33 and 34 form a control loop for regulating the cold room temperature.
  • the actual temperature Ti is read in by the temperature sensor 8 (FIG. 1), which at 32 is compared with Tmin and Tmax. Depending on the comparison result, the cooling unit is switched on or off at 33.
  • the switch-on and switch-off times are stored at 34, and a new temperature value is read in again at 31.
  • the output of the signal decoder 4 (FIG. 1) is queried. If a control instruction is determined, the switch-on time and the temperature before the load peak are calculated at 36. Furthermore,
  • Heating-cooling functions determined with the times stored at 34.
  • FIG. 9 shows the time behavior of the power consumption of a group of cooling devices which are controlled by the power provider.
  • the illustration is based on an urban electricity network with a total of 30,000 household cooling devices, whereby the average output of the cooling devices is 100 watts and the average running time of the cooling units is 1/3, i.e. 20 minutes per hour.
  • more than 90% of all household cooling devices should work without load for a period of 30 minutes or more than 80% of all household cooling devices should cool without load for a period of even 60 minutes.
  • This enables a reduction for a period of 30 minutes, for example the load to less than 0.1 MW or a reduction to less than 0.2 MW for 60 minutes.
  • the load contribution of household refrigerators in the area of demand peaks can be reduced to 0.1 MW or 0.2 MW - this means that the municipal electricity supplier has to buy less expensive peak electricity.
  • the cooling units are signaled to the cooling units about 1.5 to 2 hours before the expected peak load, which is assumed to be one hour in FIG. 8.
  • cooling units are gradually aligned to build up a cold reserve or to synchronize their switching cycle with the time of the peak load.
  • An increased load therefore occurs before the peak load. This is dismantled relatively quickly at the beginning of the peak load, after which individual cooling units gradually start operating again. After the end of the load peak, the load then rises again to return to normal after an increase.
  • Fig. 10 shows the time course of the load without a previous announcement of the load peak under otherwise identical conditions. Due to the lack of preparation, not so many cooling devices are switched off at the beginning of the peak load. Furthermore, even during the peak load, a larger part of the cooling devices than in the case according to FIG. 9 must resume operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Un dispositif destiné au fonctionnement d'un réfrigérateur ou d'un congélateur (2) contient des moyens (4, 6) permettant de télécommander le réfrigérateur ou le congélateur (2), et notamment d'agir sur leur consommation de courant par des signaux de commande transmis par le dispositif d'alimentation en courant (1). Selon un procédé de commande de réfrigérateurs et de congélateurs (2), un dispositif d'alimentation (1) en courant envoie des signaux de commande caractérisant les pointes de charge aux réfrigérateurs et/ou congélateurs (2) qui sont raccordés au réseau de ce dispositif d'alimentation en courant (1).
EP98963339A 1997-11-12 1998-11-10 Dispositif et procede destines au fonctionnement de refrigerateurs et congelateurs Withdrawn EP1031003A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19750053A DE19750053A1 (de) 1997-11-12 1997-11-12 Haushaltskühlgerät
DE19750053 1997-11-12
PCT/DE1998/003291 WO1999024771A1 (fr) 1997-11-12 1998-11-10 Dispositif et procede destines au fonctionnement de refrigerateurs et congelateurs

Publications (1)

Publication Number Publication Date
EP1031003A1 true EP1031003A1 (fr) 2000-08-30

Family

ID=7848447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98963339A Withdrawn EP1031003A1 (fr) 1997-11-12 1998-11-10 Dispositif et procede destines au fonctionnement de refrigerateurs et congelateurs

Country Status (3)

Country Link
EP (1) EP1031003A1 (fr)
DE (1) DE19750053A1 (fr)
WO (1) WO1999024771A1 (fr)

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DE19750053A1 (de) 1999-05-20

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