EP3167412A1 - Verfahren und vorrichtung zum prognostizieren des zeitlichen verlaufs eines strombedarfs einer wohnanlage - Google Patents
Verfahren und vorrichtung zum prognostizieren des zeitlichen verlaufs eines strombedarfs einer wohnanlageInfo
- Publication number
- EP3167412A1 EP3167412A1 EP15736242.7A EP15736242A EP3167412A1 EP 3167412 A1 EP3167412 A1 EP 3167412A1 EP 15736242 A EP15736242 A EP 15736242A EP 3167412 A1 EP3167412 A1 EP 3167412A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forecast
- characteristic
- residential
- load
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000002123 temporal effect Effects 0.000 title claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 238000004393 prognosis Methods 0.000 description 14
- 238000007726 management method Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013277 forecasting method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- 238000005406 washing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N5/00—Computing arrangements using knowledge-based models
- G06N5/04—Inference or reasoning models
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
Definitions
- the present invention relates to a method and an apparatus for predicting the time course of a power requirement of a residential complex with one or a plurality of residential units with a respective plurality of power consumers, wherein the housing complex has a common power supply, which is subject to a time-variable rate.
- a residential complex within the meaning of this document is understood as one or more residential units having a common power supply and electricity billing.
- Residential property in the sense of this document includes urban quarters, ie residential complexes with spatially or legally separate residential units or groups of residential units that share facilities.
- the object of the invention is to enable a reduction in electricity costs without negative influences on the daily routine and the living habits of the residents of the housing complex.
- the coverage ratio is 100%, if the entire (predicted) electricity consumption of the residential complex can be covered by the photovoltaic system in the case of strong solar radiation. Consequently, the coverage ratio is 0% if the photovoltaic system, z. B. in the dark, can make any contribution to meet the electricity needs of the housing complex. In between, all values are possible, depending on the forecast production and consumption.
- the time variability of electricity costs arises from the fact that the cost of a reference unit for self-generated photocurrent are generally different than for electricity from central generation, which is obtained via the public grid. If the cost of photocurrent is lower than for electricity from the public grid, it is advantageous for the residents in the condominium to shift as much of their power reference in such periods where there is sufficient photocurrent available.
- Such a task is known as a load shift.
- the problem is to switch electrical loads to perform the tasks you expect while keeping energy costs as low as possible.
- the electricity prices must be household appliance relevant time corridor be at least approximately predictable.
- the price of mains electricity is known. This is generally the case for housing estates.
- the grid current price is always the same regardless of the time.
- the invention also includes the case that the grid current price is variable over time. It just has to be predictable.
- the future mixed electricity price is calculated by combining the predicted future grid electricity price with the photocurrent price taking into account the predicted future coverage.
- the present invention addresses the problem of predicting residential power consumption.
- DE 10 2011 051 074 A1 describes a method for controlling the use of energy taking into account a forecast of the future energy demand of one or more energy consumers in a home network.
- a system for predicting the demand for electrical energy is known from US 5,178,237
- a method for distributing energy on a power supply network is known from DE 19 853 347 AI.
- the future energy demand is estimated based on self-reported consumer information about their desired power consumption.
- the basis for the load shift may be a direct regulation by the energy supplier, but also an indirect load influencing by means of tariff incentives. Based on this, load management procedures in the household sector can be found in response to the volatility of decentralized generation capacity with a particular focus on indirect, incentive-based load management using tariff incentives in [Kamper, A .: Decentralized load management to compensate for short-term deviations in the electricity grid; Diss., Düsseldorf 2010] and in [Hillemacher, L .; Jochem, P .; Fichtner, W .: decision support for load management; in: Renatus, F .; Kunze, R .; Karschin, I .; Geldermann, J .; Fichtner, W.
- DE 10 2012 105 404 A1 describes systems and methods for predicting energy consumption which, based on a measured local energy usage range profile and on demographic information relating to a new usage area, enable usage prognosis for the new usage area.
- DE 10 2012 103 081 A1 describes an optimized load management method for optimizing a time profile of a consumption of electrical power by a group of different consumers with regard to an offer of electrical power, which comprises electric power of at least one wind or solar power generator and power, which is bidirectionally exchanged with a storage for electrical energy and / or a public power grid.
- Characteristic time profiles of the consumption of electrical power of the individual consumers are determined, and a forecast of the time course of the supply of electrical power is created by the at least one power generator for a future period. Based on this, a plan for allocating electrical power to consumers for the future period is created.
- DE 10 2010 025 095 AI describes an apparatus and a method for consumption monitoring of resources, such as electricity, water, natural gas or district heating. solution
- the present invention provides a method for predicting the time course of a power requirement of a residential complex with one or a plurality of residential units with a respective plurality of power consumers, wherein the housing complex has a common power supply, which is subject to a time-variable rate according to claim 1 and a corresponding device according to claim 14.
- the inventors have recognized that in the boundary conditions described here, namely that as the contractual partner of the energy supplier not individual residential units, but an entire residential complex occurs, can be compared to the prior art improved forecast create. This is achieved because, given a sufficiently large number of housing units within the housing estate, deviations in the load profile of individual residential units in the overall view of the housing estate do not affect the prognosis quality to the same extent as they would for the individual consideration. This offers the possibility of creating a prognosis that can better reflect housing-specific conditions than even regionally adapted standard load profiles could do. By the total number of
- Residential units can be expected to have a sufficiently accurate forecasting quality.
- the inventors have recognized that it is advantageous if the selection of the historical load paths used for the prognosis is constantly updated and thus adapted to changing circumstances, such as the resident structure of the housing estate.
- the inventors have further recognized that in the prognosis the weighting of the used historical data according to their age is a useful degree of freedom and can be optimized for the forecasting process.
- the invention described here solves the problem of approximately predicting the power consumption for residential complexes, taking into account the individual characteristics of a particular housing estate. It therefore provides more accurate predictions than prior art predictions. It thus enables a better load shift and thus a greater reduction in electricity costs in the housing complex, because it allows the housing to shift electrical loads at times with lower electricity costs and to predict these times with greater accuracy.
- Fig. 1 is a typical residential unit in a residential complex
- Fig. 2 shows a typical residential complex and the time course of the electricity consumed by the residential complex
- 3 shows an example of how known daily load cycles of the housing estate are assigned to one or more characteristic parameters
- FIG. 5 shows an exemplary embodiment of a computer on the basis of a block diagram
- Fig. 6 the preparation of a forecast for a future load profile according to another embodiment of the invention.
- Fig. 1 shows a typical residential unit (101) in a residential complex.
- the photovoltaic systems (102) can be exemplary on the roofs of the
- Residential units are located. However, they can also be arranged at other locations of the housing complex, for example on roofs of motor vehicle parking spaces or in the outdoor area.
- electrical consumers for example washing machine (107) and stove (104).
- the electrical power consumption of the residential unit is measured by an electricity meter (105). ).
- the electricity meter (105) transmits the time profile of the consumed electricity via a suitable interface and data input (502) to a processor (501) (see FIG.
- the residential unit also houses water consumers (103).
- the water meter (106) transmits the time profile of the consumed water of a residential unit via a suitable interface and data input (502) to a processor (501) (see Fig. 5).
- FIG. 2 shows a typical residential complex and the time course of the electricity consumed the condominium.
- a residential complex (201) consists of one or more residential units (101).
- the one or more photovoltaic system (s) of the housing complex (201) are interconnected and their common power output is measured by a photocurrent counter (203).
- the different yields of the individual photovoltaic systems of the residential complex can be added.
- the electricity consumption of all residential units is recorded by a housing electricity meter (202) in total.
- the residential electricity meter (202) may be dispensed with, and the total power consumption of the housing complex may be determined by adding the various revenues of the individual home meters (105) as well as additional general electricity meters in the condominium. Without limiting the general public, it is assumed in the further course of the description that the electricity consumption of all residential units and the common current are covered in total by a residential electricity meter (202).
- the residential electricity meter (202) transmits the time history of the used electricity (204) via a suitable interface and data input (502) to a processor (501) (see Fig. 5).
- the temporal course of the consumed current is also called load profile in the following.
- the prognosis according to the invention of a future load profile in the housing estate is made by the use of historical, that is to say known, load courses of the housing complex.
- the prognosis is determined by assigning one or more characteristic parameters to the known daily load cycles of the residential complex which can be at least approximately predicted and which have an influence on the load profile. This will be explained with reference to an example and Fig. 3.
- the well-known historical load of a housing estate for the exemplarily selected period 2.3.2013 - 5.3.2013 (308) is shown graphically as energy consumption per 15 minutes.
- the power consumption values for all quarter-hourly time intervals are shown in this four-day period. This illustration is exemplary. Other representations of the time history of energy consumption are also possible, for example indicating energy consumption for intervals shorter than a quarter of an hour, or for intervals longer than a quarter of an hour, for example one hour.
- day 2.3.2013 is assigned the 3 characteristic parameters winter, sun, working day (302).
- Fig. 3 (303), (304).
- the (302) - (304) selected characteristic parameters are called standard type days and are known from VDI 4655 ["reference load profiles of single and multi-family houses for the use of CHP systems", VDI directive VDI 4655, May 2008] that each of these combinations occurs sufficiently frequently in the course of the year, and the prediction of the future characteristic parameters is only safety of the weather forecast (cloudy or sunny), and may be considered at least approximately predictable given the state of the art for weather forecasts.
- the characteristic parameters summer / winter, working day / holiday, sun / clouds also have a significant influence on the load profile.
- FIG. 4 illustrates the preparation of a forecast for a future load profile according to an embodiment of the invention.
- the creation according to the invention of a prognosis (404) for the future load profile in the time period T (405) is carried out in such a way that suitable parameters are initially determined. These can be, for example, the above-mentioned standard type days.
- suitable parameters can be, for example, the above-mentioned standard type days.
- the values for the characteristic parameters for this period T are then predicted.
- the values 'winter - sun - working day' could be used if typical days were selected.
- the last prognosis for a period with this characteristic set 1 is then selected (401). By way of example, this would be the last forecast with the values 'winter - sun - working day'. Furthermore, the last period T with known consumption data for which the characteristic set 1 applies is selected (402). By way of example, these would be the last consumption data with the values, winter - sun - working day '.
- the method according to which the computer determines this prognosis can be optimized individually.
- the method may be chosen such that the data of the last prediction (401) and the data of the last known load profile (402) are arithmetically averaged by adding the values to each individual data point and dividing by two.
- the procedure can also be defined differently and the data of the last one Forecast (401) may provide weighting other than the last known load history (402). In this way, it is possible to vary the range of the historical data used in the past: the higher the weight of the data of the last forecast (401) compared to the weight of the data of the last known load profile (402) is chosen, the greater the reach into the past. It is advantageous to make the weighting variable and to optimize continuously so that the current forecast deviates as little as possible from the actual consumption values.
- characteristic parameters are used for this purpose.
- the invention encompasses not only the use of type days according to VDI 4655 as characteristic parameters, but also characteristic parameters of greater generality. It has been recognized by the inventors that the characteristic parameters must be selected such that they have a significant influence on the load profile, are themselves at least approximately well predictable and occur sufficiently frequently in each combination during the course of the year.
- the characteristic values are chosen as follows: 'very cold' / temperature ⁇ -2 °, 'cold' / temperature between -2 ° and 5 °, 'medium' / temperature between 5 ° and 10 °,, warm Temperature between 10 ° and 20 ° and 'very warm' / temperature> 20 °.
- Characteristic parameters can be selected in another embodiment of the invention, for example, depending on the number of people living in the housing. The number of registered persons living in a specific housing estate will vary over the course of the year, depending on whether some residents are on holiday or guests are visiting the condominium, etc.
- the electricity consumption generally depends on the number of people living in a condominium
- Incorporating the number of people living in a housing estate into the electricity consumption forecast will improve their accuracy.
- the prediction of the number of persons living in a residential complex can be done, for example, by the residents themselves providing information and providing the computer (403) with corresponding data.
- the inventors have recognized that in this case a prognosis of the number of persons living in a residential complex can be given by evaluating non-electrical consumption data.
- the inventors have further recognized that, for example, the number of toilet flushes in a day is closely correlated to the number of people living in a housing estate, and that the number of toilet flushes can be estimated by evaluating the temporal water consumption.
- another suitable non-electrical consumption quantity is, for example, the heat consumption, or the temperature of a residential unit or in a certain room of the residential unit. It has been found by the inventors that the temporal heat consumption or the temperature can be correlated with the number of inhabitants in a residential unit. It was recognized that residents before long leave their apartment lower the target temperature, so that it can be concluded from the measured temperature or from the measured heat consumption on the number of residents. It has further been recognized that it is also possible to deduce the unknown power consumption directly from the predictable temporal heat consumption or the predictable temperature, and that therefore characteristic characteristics derived from the temporal heat consumption or the temperature can be used.
- 'T low' it is to be expected that there will be no residents in the housing unit and it can be predicted that this will most likely also apply in the near future. It can thus be used to modify the prediction of the power consumption of the housing estate so that a correspondingly lower household electricity is predicted for the uninhabited housing unit (s).
- the prediction is made for each residential unit using the method illustrated in FIG.
- the forecast is created for each residential unit of the housing complex.
- the characteristic parameter used is the temperature with the two possible values 'T high' and 'T low'.
- the forecast of the power consumption of the entire residential complex results in this embodiment by adding the forecasts of all residential units in the residential complex.
- the accuracy of the forecasting method described above can be further improved if the total electricity consumption of the housing estate is divided into two parts and these two proportions are forecast separately: a share for the production of heat energy and another share for all other electricity consumers in the condominium.
- the prognosis is carried out in parallel and independently for the two components 'electricity for heat generation' and 'residual electricity'.
- the forecast for the "residual current" takes place according to the method described above (FIG. 6).
- the forecast for the 'power for heat generation' can also be made according to the method described above (FIG. 6). But it can also be done by direct calculation, without recourse to historical data, for example from climate data and building simulation. The total power consumption then results as the sum of the two shares.
- Fig. 5 shows an embodiment of a computer (403) based on a block diagram.
- This includes a processor (501).
- processor (501) executes program instructions. s stored in program memory (504), and stores, for example, intermediate results or the like in the data memory (503).
- Program memory (504) and / or main memory (503) may be used by the processor (501) to store data, such as forecast data (401) or consumption data (308), (402).
- Program instructions stored in program memory (504) relate in particular to the determination of at least one of said forecasts.
- the program instructions may, for example, be comprised of a computer program stored in program memory (504) or loaded into program memory (504), for example from a computer program product, in particular a computer-readable storage medium, or via a network.
- the processor (501) receives data via interface and data input (502).
- Data is, for example, consumption data (308), (402) or prognosis data of characteristic parameters (302) - (307).
- the processor (501) generates new data and outputs it via interface and data output (505).
- the output data is visualized / displayed (507) and / or forwarded to a consumer controller (506).
- a consumer controller may, for example, use the current forecast data to switch power consumers in such a way that the lowest possible electricity costs arise.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014010117.7A DE102014010117A1 (de) | 2014-07-08 | 2014-07-08 | Prognose- und Steuerungssystem für den Strombezug von Haushalten |
PCT/EP2015/065588 WO2016005441A1 (de) | 2014-07-08 | 2015-07-08 | Verfahren und vorrichtung zum prognostizieren des zeitlichen verlaufs eines strombedarfs einer wohnanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3167412A1 true EP3167412A1 (de) | 2017-05-17 |
Family
ID=53540745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15736242.7A Ceased EP3167412A1 (de) | 2014-07-08 | 2015-07-08 | Verfahren und vorrichtung zum prognostizieren des zeitlichen verlaufs eines strombedarfs einer wohnanlage |
Country Status (4)
Country | Link |
---|---|
US (1) | US11195105B2 (de) |
EP (1) | EP3167412A1 (de) |
DE (1) | DE102014010117A1 (de) |
WO (1) | WO2016005441A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9645596B1 (en) * | 2016-11-23 | 2017-05-09 | Advanced Microgrid Solutions, Inc. | Method and apparatus for facilitating the operation of an on-site energy storage system to co-optimize battery dispatch |
CN108022014B (zh) * | 2017-12-05 | 2021-06-01 | 国网山东省电力公司济南供电公司 | 一种电力系统负荷预测方法及系统 |
US11455695B2 (en) * | 2019-12-16 | 2022-09-27 | Saudi Arabian Oil Company | System and method for modelling and forecasting electricity demand |
CN110988556B (zh) * | 2019-12-20 | 2022-03-29 | 上海市建筑科学研究院有限公司 | 一种非运行时段建筑照明插座支路用能诊断方法 |
DE102022116001A1 (de) | 2022-06-28 | 2023-12-28 | WoodenValley UG (haftungsbeschränkt) | Verfahren und system zur dynamischen bestimmung von gebäudeemissionen |
Citations (1)
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DE102011051074A1 (de) * | 2011-06-15 | 2012-12-20 | Rwe Effizienz Gmbh | Steuern der Verwendung von Energie |
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JP2002041714A (ja) * | 2000-07-21 | 2002-02-08 | Hitachi Ltd | 電力の需要予測サービス方法およびシステム |
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DE102010025095A1 (de) * | 2009-06-29 | 2011-02-03 | Polyrack Electronic-Aufbausysteme Gmbh | Vorrichtung und Verfahren zur Verbrauchsüberwachung, insbesondere des Verbrauchs von Ressourcen und Verwendung einer solchen Vorrichtung in einem Energiecontrollingsystem |
JP5618501B2 (ja) * | 2009-07-14 | 2014-11-05 | 株式会社東芝 | 需要予測装置、プログラムおよび記録媒体 |
WO2011111348A1 (ja) * | 2010-03-08 | 2011-09-15 | パナソニック株式会社 | 利用開始区間予測装置及び利用開始区間予測方法 |
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US8538593B2 (en) * | 2010-07-02 | 2013-09-17 | Alstom Grid Inc. | Method for integrating individual load forecasts into a composite load forecast to present a comprehensive synchronized and harmonized load forecast |
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US9244444B2 (en) * | 2011-03-07 | 2016-01-26 | Callida Energy Llc | Systems and methods for optimizing energy and resource management for building systems |
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JP5353957B2 (ja) * | 2011-06-14 | 2013-11-27 | 株式会社デンソー | 電力供給システム |
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-
2014
- 2014-07-08 DE DE102014010117.7A patent/DE102014010117A1/de not_active Withdrawn
-
2015
- 2015-07-08 EP EP15736242.7A patent/EP3167412A1/de not_active Ceased
- 2015-07-08 US US15/324,428 patent/US11195105B2/en active Active
- 2015-07-08 WO PCT/EP2015/065588 patent/WO2016005441A1/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011051074A1 (de) * | 2011-06-15 | 2012-12-20 | Rwe Effizienz Gmbh | Steuern der Verwendung von Energie |
Also Published As
Publication number | Publication date |
---|---|
WO2016005441A1 (de) | 2016-01-14 |
US20170161623A1 (en) | 2017-06-08 |
US11195105B2 (en) | 2021-12-07 |
DE102014010117A1 (de) | 2016-01-14 |
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