EP2925922A1 - Verfahren und vorrichtung zur leistungsbestimmung eines haushaltsgerätes - Google Patents
Verfahren und vorrichtung zur leistungsbestimmung eines haushaltsgerätesInfo
- Publication number
- EP2925922A1 EP2925922A1 EP13791980.9A EP13791980A EP2925922A1 EP 2925922 A1 EP2925922 A1 EP 2925922A1 EP 13791980 A EP13791980 A EP 13791980A EP 2925922 A1 EP2925922 A1 EP 2925922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power
- determined
- consumer
- household appliance
- previously stored
- 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- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/46—Control of the energy or water consumption
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/44—Current or voltage
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/68—Operation mode; Program phase
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Definitions
- the invention relates to a method and a device for determining the power of a household appliance.
- smart grids also referred to as smart grids
- the application of smart grids involves the communicative networking and control of power generators, storage, electrical consumers and network resources in energy transfer and energy
- Energy distribution networks of the electricity supply whereby an optimization and monitoring of the interconnected components is achieved.
- the aim is to secure the energy supply based on efficient and reliable system operation.
- a requirement of household appliances when using smart grids is to make available the power actually picked up by the household appliance or its corresponding history for further processing, for example in the context of energy management systems.
- the power measurement can be carried out by a current and voltage measurement with subsequent further processing or digital evaluation.
- the current can be measured for example by means of a shunt resistor (also referred to as shunt) or by means of a magnetic field sensor, the voltage across a resistor divider. If the electronics are not at the potential of the mains voltage, an additional galvanic separation in the direction of measuring technology is required.
- the object of the invention is to avoid the disadvantages mentioned above and in particular to specify a performance determination of a household appliance, which manages with constructive and economically low effort.
- Household appliance proposed in which the performance of the household appliance is determined by means of at least one pre-stored information.
- the proposed performance determination thus corresponds to a kind of estimation based on predetermined and stored information and has the advantage that it dispenses with the use of a complex measuring arrangement and thus the constructive and thus economic effort can be kept low.
- a development is that based on the information stored in advance, a performance of at least one consumer of the household appliance can be determined.
- Determining the performance of one or more consumers of a household appliance will enable the realization of particularly energy-efficient systems.
- Another development is that the performance of the at least one consumer over a time interval is determined. In particular, the power for several
- Processing unit which drives at least one consumer by means of an activation signal and the duration of the activation and an associated power consumption is determined by the processing unit by means of the previously stored information.
- the activation signal corresponds to an operating mode of the at least one consumer.
- the power is determined by means of a size provided or to be provided by the at least one consumer.
- the measurand may be e.g. a speed of a motor or a
- the previously stored information comprises at least one of the following information:
- the previously stored information comprises a mains voltage.
- a development is that the information stored in advance on
- predetermined mains voltage is normalized.
- the normalized mains voltage may be a predetermined value, e.g. 230 V or 1 V to which the stored information is related. This is as
- Mains voltage given a uniform reference by means of which, e.g. By means of the energy manager (s.u.), a consistent and uniform correction of the power can be done.
- An alternative embodiment is that the determined power or a power determined over a period of time is transmitted to an energy manager.
- the energy manager can be both part of the household appliance and arranged externally.
- a next refinement is that the transmitted power or the power determined over a period of time is corrected by the energy manager on the basis of a determined mains voltage.
- the energy manager for this purpose has a measuring device of the local mains voltage or receives information based on which determines the mains voltage can be, for example, from an energy supplier or from another device of the household, such as a smart meter.
- the previously stored information was determined by a customer before initial startup and stored in the household appliance.
- FIG. 1 shows schematically a household appliance (eg a washing machine) with several consumers arranged therein.
- a household appliance eg a washing machine
- FIG. 1 shows by way of example as domestic appliance 100 a washing machine which, for example, comprises four consumers 101 to 104.
- the first consumer 101 is a radiator
- the second consumer 102 is a motor for a washing drum.
- the third consumer 103 is a drain pump and the fourth consumer 104 is a display unit of the washing machine.
- All consumers 101 to 104 are connected via data links 120 to 123 (which may alternatively be configured as a bus system) to a processing unit 106 arranged in the washing machine 100, to which a memory unit 108 is connected via a data connection 124.
- the memory unit 108 may be part of the processing unit 106.
- the first consumer 101 is a radiator
- the second consumer 102 is a motor for a washing drum.
- the third consumer 103 is a drain pump
- the fourth consumer 104 is a display unit of the washing machine.
- All consumers 101 to 104 are connected via data links 120 to 123 (which may alternatively be configured as a bus system) to a processing
- Processing unit 106 is connected via a data connection 125 to a control device 110, which in this embodiment is designed as an energy manager.
- the domestic appliance 100 may also be a cooker having a plurality of heating circuits in the form of resistive loads, a motor as an inductive load and a display unit as a consumer.
- the power of the oven for example, depends on a preselected operating mode.
- the radiator 101 represents a resistive load in which the absorbed power P-101 is calculated from the square of the applied voltage U divided by the resistance R of the load according to:
- the resistor R and the normalized voltage U n0 rm are stored as previously stored information in the memory unit 108.
- the normalized voltage U n0 rm can also be stored as a global parameter and does not have to be stored in the memory unit.
- the energy manager 1 10 performs a correction with the actual or determined mains voltage U rea i.
- the result is a power Pi 0 i re ai based on the network voltage U rea i
- the voltage and the resistance value R can be stored in the memory unit 108, for example. These and other consumer-specific information can be determined and stored, for example, before a customer commissioning of the washing machine 100.
- the motor of the washing drum 102 is an inductive load, in which a linear dependence of the absorbed power P 10 2 is assumed by a manipulated variable, in this case a speed d.
- the absorbed power is thus calculated as follows and is preferably related to the normalized voltage U n0 rm stored in the processing unit or memory unit:
- the power P m ax @ unorm represents a maximum power consumption and d ma x corresponding to a maximum speed of the motor using the normalized voltage U n orm. Both the value of the maximum power consumption P m ax @ unorm and the value of the maximum speed d ma x are as consumer-specific
- the current rotational speed of the motor d in the form of an information signal 301 from the engine via the data link 121 to the
- Processing unit 106 are transmitted.
- those corresponding to the engine 102 are stored in the memory unit 108
- the rotational speed can also be a manipulated variable which is known as a function of a setting and can be taken into account for determining the power by means of values stored in the memory unit.
- the speed may be communicated eg by the engine 102 or measured by the processing unit 106, as discussed above.
- the consumer-specific information is e.g. stored in table form in the form of a value table in the memory unit 108.
- the consumer-specific information can be stored as a functional relationship for the respective consumer 101 to 104 in the memory unit 108.
- the relationship valid for the engine 102 is e.g. stored in table form in the form of a value table in the memory unit 108.
- the constant ⁇ can also refer to the normalized voltage.
- the loads 101 to 104 arranged in the washing machine 100 are activated via activation signals 310 to 313 generated by the processing unit 106, i. e.g. switched to a specific operating mode.
- the processing unit 106 the time intervals are known in which the respective consumers 101 to 104 are switched to a specific operating mode, for example, are activated or deactivated.
- powers of different consumers including a display unit 104 (power for an on or off display), at least one computer (inter alia, a standby power) or the like. be stored.
- the power consumption of the electronics or the individual modules is depending on
- the radiator 101 is activated in a first step with an activation signal 310 generated by the processing unit 106.
- the consumer-specific information U 10 i, R 101 stored in the storage unit 108 corresponding to the radiator 101 is forwarded in the form of an information signal 315 via the data connection 124 to the processing unit 106.
- the normalized currently recorded power P 10 i is determined by the processing unit 106 with the aid of the transmitted consumer-specific information U 101, R 101 based on the above relationship (2).
- the power P 10 3 received by the drain pump 103 is calculated similarly to the motor 102 by the relationship (4).
- both the power P 10 i to P 104 and the power (energy consumption) summed over a specific time interval can be determined.
- the total power P ges received by the washing machine 100 results from the sum of the power consumed per consumer P 10 i to Pi 04
- the electrical energy E ges received by the consumers 101 to 104 results, for example, as the integral of the individual amounts of the powers P 10 i to Pi 04 over time.
- the energy E ges over the time period t with the time intervals t- ⁇ to t n are given as:
- the energy manager 1 10 then calculates the actual absorbed power according to: pp ⁇ u rreeaall b WEEU r eal
- the "actually recorded power” in particular corresponds to that power which is determined by means of the normalized mains voltage U n orm according to the above statements and corrected on the basis of the determined (eg measured) mains voltage U re ai.
- the energy manager by means of the energy manager, a correction or compensation of the power or energy can be performed.
- the energy manager for several processing units such as household appliances or components of household appliances, are used.
- the determination of the mains voltage U re ai can be carried out centrally at a location for a plurality of processing units.
- Resistance tolerance for radiators should not exceed 10% to 15%. This error is remedied by measurements of the hot or cold resistances of the individual consumers during the final final production test; Preferably, precisely this resistance value of the loads can be stored in the memory unit 108.
- aging of a resistor can be corrected by means of the processing unit. For example, a change in the resistance value per operating hour is known and can be stored in the memory unit. With this value, the processing unit can correct the current resistance value of the consumer. The aging of the resistor causes an error of about 1% per 1000 operating hours. Such an error can be reduced or compensated, for example, by means of an operating hours counter in the processing unit 106.
- the voltage fluctuation in the supply network can be determined by normalizing the
- the supply network is specified to a voltage of 230V ⁇ 10%, which can lead to an error of -19% or +21% in the power calculation. This error can be reduced or
- the energy manager 1 10 can be at least partially compensated by the power and the energy is normalized to the corresponding state value. Since the energy manager 1 10 usually has knowledge about the actual course of the voltage applied to the household, this can be out of the normalized power or
- This error can be detected by a characteristic field, which is also included in the final production test and, e.g. of the
- Processing unit 106 is accessed via the memory unit 108, reduced or compensated.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012221693.6A DE102012221693A1 (de) | 2012-11-28 | 2012-11-28 | Verfahren und Vorrichtung zur Leistungsbestimmung eines Haushaltsgerätes |
PCT/EP2013/073605 WO2014082850A1 (de) | 2012-11-28 | 2013-11-12 | Verfahren und vorrichtung zur leistungsbestimmung eines haushaltsgerätes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2925922A1 true EP2925922A1 (de) | 2015-10-07 |
Family
ID=49585377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13791980.9A Withdrawn EP2925922A1 (de) | 2012-11-28 | 2013-11-12 | Verfahren und vorrichtung zur leistungsbestimmung eines haushaltsgerätes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2925922A1 (de) |
DE (1) | DE102012221693A1 (de) |
WO (1) | WO2014082850A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20131100A1 (it) * | 2013-12-31 | 2015-07-01 | Indesit Co Spa | Utenza elettrica domestica |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008009128U1 (de) * | 2007-07-06 | 2009-01-02 | Aizo Ag | Verbrauchs- und Zustandsmesser |
DE102009028358B4 (de) * | 2009-08-07 | 2012-03-08 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschebehandlungsgerät mit einem Elektromotor |
KR20120000026A (ko) * | 2010-06-26 | 2012-01-03 | 엘지전자 주식회사 | 네트워크 시스템 |
EP2494104A4 (de) * | 2009-10-26 | 2014-05-07 | Lg Electronics Inc | Vorrichtung und verfahren zur steuerung eines elektrischen produktes |
US9523718B2 (en) * | 2010-09-22 | 2016-12-20 | Philips Lighting Holding B.V. | Disaggregation apparatus for identifying an appliance in an electrical network |
DE102010042172A1 (de) * | 2010-10-07 | 2012-04-12 | BSH Bosch und Siemens Hausgeräte GmbH | Hausgerät mit einer Steuerung für ein elektrisches Energieversorgungsnetz mit zugehörigem Datennetz sowie Verfahren zum Betreiben einer Steuerung eines Hausgerätes an diesem Energieversorgungsnetz |
GB2488164A (en) * | 2011-02-18 | 2012-08-22 | Globosense Ltd | Identifying electrical appliances and their power consumption from energy data |
-
2012
- 2012-11-28 DE DE102012221693.6A patent/DE102012221693A1/de not_active Withdrawn
-
2013
- 2013-11-12 WO PCT/EP2013/073605 patent/WO2014082850A1/de active Application Filing
- 2013-11-12 EP EP13791980.9A patent/EP2925922A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2014082850A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102012221693A1 (de) | 2014-05-28 |
WO2014082850A1 (de) | 2014-06-05 |
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