CN114138035A - Building energy consumption adjusting method and device - Google Patents

Building energy consumption adjusting method and device Download PDF

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Publication number
CN114138035A
CN114138035A CN202111453251.1A CN202111453251A CN114138035A CN 114138035 A CN114138035 A CN 114138035A CN 202111453251 A CN202111453251 A CN 202111453251A CN 114138035 A CN114138035 A CN 114138035A
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building
temperature
adjustable range
determining
energy storage
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Inventor
曾爽
丁屹峰
李香龙
梁安琪
马麟
段大鹏
赵宇彤
赵乐
牛焕娜
王钊
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State Grid Corp of China SGCC
China Agricultural University
State Grid Beijing Electric Power Co Ltd
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State Grid Corp of China SGCC
China Agricultural University
State Grid Beijing Electric Power Co Ltd
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Priority to CN202111453251.1A priority Critical patent/CN114138035A/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature

Abstract

The application discloses a building energy consumption adjusting method and device. Wherein, the method comprises the following steps: determining a first adjustable range of building body energy consumption of a building; determining a second adjustable range of the stored energy of the thermal energy storage device in the building; determining a third adjustable range of the heating capacity of the temperature control load in the building; determining the power utilization state of the current power grid load, wherein the power utilization state comprises the following steps: the power utilization peak state and the power utilization valley state; based on the power consumption state, the energy consumption of the building body is adjusted within a first adjustable range, the energy storage amount of the heat energy storage equipment is adjusted within a second adjustable range, and the heating amount of the temperature control load is adjusted within a third adjustable range. The method and the device solve the technical problems that the regulation of the building energy consumption in the related technology lacks flexibility and the balance of the load supply and demand of the power grid is difficult to meet.

Description

Building energy consumption adjusting method and device
Technical Field
The application relates to the technical field of power grid load regulation, in particular to a building energy consumption regulation method and device.
Background
In recent years, with the rapid development of economic society, the total social energy consumption is rapidly increasing, and taking the terminal energy consumption represented by buildings as an example, the building energy consumption is rapidly increasing every year due to the increase of the number of buildings and the improvement of the requirement of users on comfort, so the development of green buildings is particularly important. Especially, after a large-scale clean electric heating project is implemented in a part of severe cold areas, the electric load of the building in winter is greatly increased, and a considerable pressure is applied to the power grid, so how to flexibly adjust the energy consumption of the building to meet the balance of supply and demand of the load of the power grid and ensure the economic operation level of the power grid is a problem which needs to be mainly solved at present.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the application provides a building energy consumption adjusting method and device, and aims to at least solve the technical problems that the adjustment of building energy consumption in related technologies is lack of flexibility and the load supply and demand balance of a power grid is difficult to meet.
According to an aspect of an embodiment of the present application, there is provided a building energy consumption adjusting method, including: determining a first adjustable range of building body energy consumption of a building; determining a second adjustable range of stored energy of a thermal energy storage device in the building; determining a third adjustable range of the heating capacity of the temperature control load in the building; determining a power utilization state of a current power grid load, wherein the power utilization state comprises: the power utilization peak state and the power utilization valley state; and adjusting the energy consumption of the building body within the first adjustable range, adjusting the energy storage amount of the thermal energy storage device within the second adjustable range and adjusting the heating amount of the temperature control load within the third adjustable range based on the power utilization state.
Optionally, determining a building body energy consumption of the building, wherein the building body energy consumption at least comprises: heat loss of the wall of the building, supplementary heat of solar radiation to the building and heat dissipation of an indoor heat source of the building; determining a first adjustable range of the building body energy consumption based on the wall lost heat, the supplementary heat and the indoor heat source heat dissipation capacity.
Optionally, determining an upper energy storage limit, a lower energy storage limit and current stored energy of the thermal energy storage device; determining an increasable amount of stored energy of the thermal energy storage device based on the upper stored energy limit and the current stored energy; and determining reducible energy of the energy storage of the thermal energy storage device based on the lower energy storage limit and the current stored energy to obtain a second adjustable range of the energy storage of the thermal energy storage device.
Optionally, a plurality of temperature intervals corresponding to the building are determined based on preset comfort environment criteria, and the temperature intervals at least include: a low temperature uncomfortable area, a secondary comfortable area, a primary comfortable area, and a high temperature uncomfortable area, wherein the temperature in the low temperature uncomfortable area < the temperature in the secondary comfortable area < the temperature in the primary comfortable area < the temperature in the high temperature uncomfortable area.
Optionally, determining a current indoor temperature of the building; determining a target temperature interval to which it is desired to adjust the indoor temperature of the building; determining a third adjustable range of the heating capacity of the temperature controlled load based on the current indoor temperature and the temperature threshold of the target temperature interval.
Optionally, when the current indoor temperature is within the target temperature interval, determining an increased heating capacity of the temperature controlled load based on a maximum temperature value in the target temperature interval and the current indoor temperature, and determining a decreased heating capacity of the temperature controlled load based on the current indoor temperature and a minimum temperature value in the target temperature interval; determining an increased heating capacity of the temperature controlled load based on at least a maximum temperature value in the target temperature interval and the current indoor temperature when the current indoor temperature is lower than a temperature in the target temperature interval; determining a reducible heating amount of the temperature controlled load based on at least a minimum value of the current indoor temperature and a temperature in the target temperature interval when the current indoor temperature is higher than the temperature in the target temperature interval.
Optionally, when the power utilization state is a peak power utilization state, reducing the energy consumption of the building body within the first adjustable range, releasing the stored energy of the thermal energy storage device within the second adjustable range, and reducing the heating capacity of the temperature control load within the third adjustable range;
and when the power utilization state is a power utilization valley state, increasing the energy consumption of the building body within the first adjustable range, increasing the energy storage capacity of the thermal energy storage device within the second adjustable range, and increasing the heating capacity of the temperature control load within the third adjustable range.
According to another aspect of the embodiments of the present application, there is also provided a building energy consumption adjusting apparatus, including: the first determining module is used for determining a first adjustable range of the energy consumption of a building body of the building; the second determining module is used for determining a second adjustable range of the energy storage of the thermal energy storage equipment in the building; the third determining module is used for determining a third adjustable range of the heating capacity of the temperature control load in the building; a fourth determining module, configured to determine a power utilization state of a current grid load, where the power utilization state includes: the power utilization peak state and the power utilization valley state; and the adjusting module is used for adjusting the energy consumption of the building body within the first adjustable range, adjusting the energy storage amount of the thermal energy storage device within the second adjustable range and adjusting the heating amount of the temperature control load within the third adjustable range based on the power utilization state.
According to another aspect of the embodiments of the present application, a non-volatile storage medium is further provided, where the non-volatile storage medium includes a stored program, and when the program runs, the apparatus where the non-volatile storage medium is located is controlled to execute the above building energy consumption adjusting method.
According to another aspect of the embodiments of the present application, there is also provided a processor for executing a program, where the program executes the method for adjusting building energy consumption.
In the embodiment of the application, the adjustable ranges of the energy consumption of a building body of the building, the energy storage of heat energy storage equipment in the building and the heating capacity of temperature control load in the building are determined respectively, then the power utilization state of the current power grid load is determined, and the energy consumption of the building body, the energy storage of the heat energy storage equipment and the heating capacity of the temperature control load are flexibly adjusted in the power utilization peak state and the power utilization valley state so as to meet the requirement for power grid load supply and demand balance, so that the technical problems that the adjustment of the energy consumption of the building in the related technology lacks flexibility and the requirement for power grid load supply and demand balance is difficult to meet are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic flow chart of a method for regulating energy consumption of a building according to an embodiment of the present application;
FIG. 2 is a diagram illustrating temperature ranges corresponding to a comfort environment standard according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a building energy consumption adjusting device according to an embodiment of the application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
In accordance with an embodiment of the present application, there is provided an embodiment of a building energy consumption adjustment method, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that herein.
Fig. 1 is a schematic flow chart of an alternative building energy consumption adjusting method according to an embodiment of the present application, as shown in fig. 1, the method at least includes steps S102-S110, where:
step S102, determining a first adjustable range of energy consumption of a building body of the building.
The flexible regulation capacity of the building energy consumption generally refers to the energy which can be output to the outside and the energy which can be absorbed from the outside in the whole building within the t scheduling period, wherein the energy which is output to the outside is called building reducible energy, and the energy which is absorbed from the outside is called building increasable energy. The flexibility adjusting capability mainly considers three parts: 1) the energy consumption of the building body is the influence of the characteristics of the building, such as the external wall, the window, the solar irradiance, the indoor heat source and the like of the building on the regulating capacity of the energy consumption of the building; 2) the energy storage of the thermal energy storage device, namely the influence of the thermal energy storage device matched with the electric heating equipment in the building on the building energy consumption regulation capacity; 3) the heating capacity of the temperature control load, such as the influence of the isothermal temperature control load of the electric heating equipment on the building energy consumption regulation capacity.
Specifically, the expression for the building to reduce energy is:
Figure BDA0003385720720000041
the expression for building energy increase is:
Figure BDA0003385720720000042
in the formula, Qhl，tEnergy consumption for the building body;
Figure BDA0003385720720000043
and
Figure BDA0003385720720000044
increasable energy and reducible energy, delta Q ', respectively, of a thermal energy storage device in a building'h，tAnd Δ Q ″)h，tThe heating capacity can be reduced and increased respectively for the temperature control load in the building.
In some optional embodiments of the present application, a building body energy consumption of the building may be determined, where the building body energy consumption at least includes: heat loss of the wall of the building (including wall heat loss and window heat loss), supplementary heat of the building by solar radiation and indoor heat source heat dissipation capacity of the building; and determining a first adjustable range of the energy consumption of the building body based on the wall lost heat, the supplementary heat and the indoor heat source heat dissipation capacity.
Specifically, under the condition of winter heat supply, the energy consumption of the building body is mainly determined by the comprehensive influence of heat dissipated from the outer wall and the window of the building, solar radiation heat compensation and indoor heat source heat dissipation on the interior of the building, and at the moment, the energy consumption Q of the building body ishl，tThe expression satisfied is:
Qhl，t＝kwallFwall(Tin，t-T0，t)+kwinFwin(Tin，t-T0，t)-ItFwinSC-Qin，t
wherein Q isin，tThe heat productivity of the heat source in the building room is expressed as follows:
Qin，t＝C1N1Froom+C2N2Froom+(qxrCxr+qcr)nβFroom
in the formula, kwallFwall(Tin，t-T0，t) Representing heat transferred outdoors of a building wall as a whole, kwallThe heat transfer coefficient of the building wall surface is expressed by J/(m)2·℃)，FwallIs the area of the building wall body, and the unit is m2Calculated by actual measurement, Tin，tThe indoor temperature at the starting moment of the scheduling time interval is measured in DEG C0，tScheduling the outdoor temperature of the time interval for the predicted t, wherein the unit is; k is a radical ofwinFwin(Tin，t-T0，t) The whole represents the heat transferred from the window of the building to the outside, kwinIs the heat transfer coefficient of the building window and has the unit of J/(m)2·℃)，FwinIs the area of the window of the building, and the unit is m2Obtained by actual measurement and calculation; i istFwinScThe whole represents the heat transferred by solar heat radiation to the interior of a building, wherein ItIs the degree of solar radiation, SCIs a shading coefficient, C1As a cold load factor of the lighting device, N1For heat dissipation per unit area of the lighting device, FroomIs the area of each room inside the building, C2For the cold load coefficient of other indoor electric appliances, N2For the heat dissipation per unit area of other consumers, qxrAnd q iscrRespectively the sensible heat and latent heat dissipation of the personnel, CxrThe sensible heat and cold dissipation load coefficient is shown, n is the number of people per unit area, and beta is the clustering coefficient.
Q calculated as described above can be usedhl，tAs the first adjustable range of the energy consumption of the building body, the energy consumption of the building body can be adjusted by adjusting the indoor temperature and the like.
And step S104, determining a second adjustable range of the stored energy of the thermal energy storage device in the building.
In the case of winter heat supply, when there is excess heat inside the building, the heat can be temporarily stored by using a heat energy storage device (such as a heat storage water tank, phase change heat storage, etc.), and then released when needed, that is, the adjustable capability of the heat energy storage device in the t scheduling period includes energy increase and energy reduction.
In some optional embodiments of the present application, an upper energy storage limit, a lower energy storage limit, and a current stored energy of the thermal energy storage device may be determined first; determining the increasable energy of the stored energy of the thermal energy storage device based on the upper energy storage limit and the current stored energy; determining the reducible energy of the stored energy of the thermal energy storage device based on the lower stored energy limit and the current stored energy, thereby obtaining a second adjustable range of the stored energy of the thermal energy storage device.
In particular, the increased energy of the thermal energy storage device
Figure BDA0003385720720000051
The expression of (a) is:
Figure BDA0003385720720000052
reduced energy of thermal energy storage device
Figure BDA0003385720720000053
The expression of (a) is:
Figure BDA0003385720720000054
in the formula: eWSHmaxAnd EwSHminRespectively an upper energy storage limit and a lower energy storage limit of the thermal energy storage equipment; ewSH，tThe current stored energy of the thermal energy storage device is scheduled for a period of time t.
And step S106, determining a third adjustable range of the heating capacity of the temperature control load in the building.
When the heating capacity of the temperature control load in the building is adjusted, firstly, the comfort level of the environment temperature where the user is located needs to be considered, the comfort temperature of the user often has a range, and the embodiment can realize demand side response by adjusting the temperature range where the user is located. If the load of the power grid side is in the peak time period, the power grid side hopes that the user properly reduces the power consumption to cut down the power consumption peak, and at the moment, the user can properly sacrifice some comfort level and reduce the power consumption, so that the load of the power grid side in the peak time period is reduced; when the load of the power grid side is in the valley period, the power grid side hopes that the user appropriately increases the power consumption to fill the power consumption valley, and at the moment, the user can adjust the indoor temperature to the optimal comfortable temperature, so that the load of the power grid side in the valley period is increased. Therefore, the range limit of the ambient temperature of the user needs to be given, and the user can specifically refer to the design code for heating, ventilation and air conditioning of civil buildings, and the standard parameters of the indoor comfortable environment are shown in table 1.
TABLE 1
Figure BDA0003385720720000061
In some optional embodiments of the present application, a plurality of temperature intervals corresponding to the building may be determined based on the preset comfort environment standard, and the temperature intervals at least include: a low temperature uncomfortable area, a secondary comfortable area, a primary comfortable area and a high temperature uncomfortable area, wherein,the temperature in the low-temperature uncomfortable area < the temperature in the secondary comfortable area < the temperature in the primary comfortable area < the temperature in the high-temperature uncomfortable area. FIG. 2 shows a schematic diagram of alternative comfort environment criteria versus temperature range, where the temperature T e [ T ] in the low temperature discomfort zone0，t，TII，down) The temperature T in the secondary comfort zone is ∈ [ T ∈ [ ]II，down，TII，up) Temperature T ∈ [ T ] in primary comfort zoneI，down，TI，up) Temperature T E [ T ] in high temperature uncomfortable areaI，up，∞)。
Thereafter, a current indoor temperature of the building may be determined, and a target temperature interval to which the indoor temperature of the building is desired to be adjusted may be determined, and then a third adjustable range of the heating amount of the temperature controlled load may be determined based on the current indoor temperature and a temperature threshold of the target temperature interval.
Specifically, when the current indoor temperature is within the target temperature interval, determining an increased heating capacity of the temperature controlled load based on a maximum temperature value in the target temperature interval and the current indoor temperature, and determining a decreased heating capacity of the temperature controlled load based on the current indoor temperature and a minimum temperature value in the target temperature interval; determining an increased heating capacity of the temperature controlled load based on at least a maximum temperature value in the target temperature interval and the current indoor temperature when the current indoor temperature is lower than the temperature in the target temperature interval; when the current indoor temperature is higher than the temperature in the target temperature interval, the reducible heating amount of the temperature controlled load is determined based on at least the current indoor temperature and the temperature minimum value in the target temperature interval.
Next, the calculation of the amount of heating reducible heat Δ Q 'of the temperature control load in each temperature range will be described in detail'h，tAnd can increase the heating capacity delta Qh，tWherein, Tin，tIndicating the indoor temperature at the start of the T schedule period (i.e., the current indoor temperature), Tin，t0Indicating a target temperature to which it is desired to condition the interior of the building.
At the present indoor temperature in the low temperature uncomfortable region, i.e. T0，t≤Tin，t＜TII，downIn time, there are:
ΔQ′h，t＝[0，k·(Tin，t-T0，t))T0，t≤Tin，t0＜TII，down(Low temperature uncomfortable area)
Figure BDA0003385720720000071
Where ρ is an air density, and k is ρ CV, which is about 1.29kg/m3(ii) a C is the specific heat capacity of air, and is usually 1X 103J/(kg. DEG C); v is the indoor air volume, and can be calculated by measurement.
Similarly, at the current indoor temperature, in the comfort zone of class II, i.e. TII，down≤Tin，t＜TII，upIn time, there are:
Figure BDA0003385720720000072
Figure BDA0003385720720000073
at the current indoor temperature in the comfort zone of class I, i.e. TI，down≤Tin，t＜TI，upIn time, there are:
Figure BDA0003385720720000074
Figure BDA0003385720720000075
at the present room temperature in the high temperature uncomfortable region, i.e. Tin，t≥TI，upIn time, there are:
Figure BDA0003385720720000076
ΔQ″h，t＝[0，k·(Tin，t0-Tin，t))，TI，up≤Tin，t0(high temperature uncomfortable area)
Step S108, determining the power utilization state of the current power grid load, wherein the power utilization state comprises the following steps: peak power consumption state and valley power consumption state.
Step S110, based on the power utilization state, adjusting the energy consumption of the building body within a first adjustable range, adjusting the energy storage amount of the heat energy storage device within a second adjustable range, and adjusting the heating amount of the temperature control load within a third adjustable range.
It can be understood that, when the power consumption state of the power grid load is the power consumption peak state, the power grid side expects the user to reduce the power consumption appropriately to cut down the power consumption peak, so the building energy consumption needs to be reduced, specifically, the building body energy consumption can be reduced in the first adjustable range, the energy storage of the thermal energy storage device can be released in the second adjustable range, and the heating capacity of the temperature control load can be reduced in the third adjustable range; when the power consumption state of the power grid load is the power consumption valley state, the power grid side expects that the proper improvement power consumption of the user fills the power consumption valley, so the building energy consumption can be increased, specifically, the building body energy consumption can be increased in the first adjustable range, the energy storage of the thermal energy storage equipment is increased in the second adjustable range, and the heating capacity of the temperature control load is increased in the third adjustable range.
Generally, energy scheduling of building energy consumption is performed by power, so in the case of winter heating, the heating power that can be reduced by building energy consumption is:
Figure BDA0003385720720000081
the heating power which can be increased by building energy consumption is as follows:
Figure BDA0003385720720000082
in some alternative embodiments of the present application, considering that the power increasable and power reducible of the energy consumption of the building is mainly regulated by the electric heating devices in the building, the power increasable and power reducible of the electric heating devices can be considered to be equivalent to the power increasable and power reducible of the energy consumption of the building, namely:
Figure BDA0003385720720000083
Figure BDA0003385720720000084
in the formula (I), the compound is shown in the specification,
Figure BDA0003385720720000085
and
Figure BDA0003385720720000086
the power of the electric heating equipment can be reduced and increased.
After considering the energy efficiency ratio of the equipment, the maximum increase of the building energy consumption can be adjusted as follows:
Figure BDA0003385720720000087
the maximum reducible regulating power of the building energy consumption is as follows:
Figure BDA0003385720720000088
in the formula, CopEHThe energy efficiency ratio of the electric heating equipment.
In the embodiment of the application, the adjustable ranges of the energy consumption of a building body of the building, the energy storage of heat energy storage equipment in the building and the heating capacity of temperature control load in the building are determined respectively, then the power utilization state of the current power grid load is determined, and the energy consumption of the building body, the energy storage of the heat energy storage equipment and the heating capacity of the temperature control load are flexibly adjusted in the power utilization peak state and the power utilization valley state so as to meet the requirement for power grid load supply and demand balance, so that the technical problems that the adjustment of the energy consumption of the building in the related technology lacks flexibility and the requirement for power grid load supply and demand balance is difficult to meet are solved.
Example 2
According to an embodiment of the present application, there is also provided a building energy consumption adjusting apparatus for implementing the building energy consumption adjusting method, as shown in fig. 3, the apparatus includes at least a first determining module 30, a second determining module 32, a third determining module 34, a fourth determining module 36, and an adjusting module 38, where:
the first determining module 30 is used for determining a first adjustable range of the building body energy consumption of the building.
The flexible regulation capacity of the building energy consumption generally refers to the energy which can be output to the outside and the energy which can be absorbed from the outside in the whole building within the t scheduling period, wherein the energy which is output to the outside is called building reducible energy, and the energy which is absorbed from the outside is called building increasable energy. The flexibility adjusting capability mainly considers three parts: 1) the energy consumption of the building body is the influence of the characteristics of the building, such as the external wall, the window, the solar irradiance, the indoor heat source and the like of the building on the regulating capacity of the energy consumption of the building; 2) the energy storage of the thermal energy storage device, namely the influence of the thermal energy storage device matched with the electric heating equipment in the building on the building energy consumption regulation capacity; 3) the heating capacity of the temperature control load, such as the influence of the isothermal temperature control load of the electric heating equipment on the building energy consumption regulation capacity.
Specifically, the expression for the building to reduce energy is:
Figure BDA0003385720720000091
the expression for building energy increase is:
Figure BDA0003385720720000092
in the formula, Qhl，tEnergy consumption for the building body;
Figure BDA0003385720720000093
and
Figure BDA0003385720720000094
increasable energy and reducible energy, delta Q ', respectively, of a thermal energy storage device in a building'h，tAnd Δ Q ″)h，tThe heating capacity can be reduced and increased respectively for the temperature control load in the building.
In some optional embodiments of the present application, a building body energy consumption of the building may be determined, where the building body energy consumption at least includes: heat loss of the wall of the building (including wall heat loss and window heat loss), supplementary heat of the building by solar radiation and indoor heat source heat dissipation capacity of the building; and determining a first adjustable range of the energy consumption of the building body based on the wall lost heat, the supplementary heat and the indoor heat source heat dissipation capacity.
Specifically, under the condition of winter heat supply, the energy consumption of the building body is mainly determined by the comprehensive influence of heat dissipated from the outer wall and the window of the building, solar radiation heat compensation and indoor heat source heat dissipation on the interior of the building, and at the moment, the energy consumption Q of the building body ishl，tThe expression satisfied is:
Qhl，t＝kwallFwall(Tin，t-T0，t)+kwinFwin(Tin，t-T0，t)-ItFwinSC-Qin，t
wherein Q isin，tThe heat productivity of the heat source in the building room is expressed as follows:
Qin，t＝C1N1Froom+C2N2Froom+(qxrCxr+qcr)nβFroom
in the formula, kwallFwall(Tin，t-T0，t) Representing heat transferred outdoors of a building wall as a whole, kwallThe heat transfer coefficient of the building wall surface is expressed by J/(m)2·℃)，FwallIs the area of the building wall body, and the unit is m2Calculated by actual measurement, Tin，tThe indoor temperature at the starting moment of the scheduling time interval is measured in DEG C0，tScheduling the outdoor temperature of the time interval for the predicted t, wherein the unit is; k is a radical ofwinFwin(Tin，t-T0，t) The whole represents the heat transferred from the window of the building to the outside, kwinIs the heat transfer coefficient of the building window and has the unit of J/(m)2·℃)，FwinIs the area of the window of the building, and the unit is m2Obtained by actual measurement and calculation; i istFwinSCThe whole represents the heat transferred by solar heat radiation to the interior of a building, wherein ItIs the degree of solar radiation, SCIs a shading coefficient, C1As a cold load factor of the lighting device, N1For heat dissipation per unit area of the lighting device, FroomIs the area of each room inside the building, C2For the cold load coefficient of other indoor electric appliances, N2For the heat dissipation per unit area of other consumers, qxrAnd q iscrRespectively the sensible heat and latent heat dissipation of the personnel, CxrThe sensible heat and cold dissipation load coefficient is shown, n is the number of people per unit area, and beta is the clustering coefficient.
Q calculated as described above can be usedhl，tAs the first adjustable range of the energy consumption of the building body, the energy consumption of the building body can be adjusted by adjusting the indoor temperature and the like.
A second determination module 32 for determining a second adjustable range of the energy storage of the thermal energy storage device in the building.
In the case of winter heat supply, when there is excess heat inside the building, the heat can be temporarily stored by using a heat energy storage device (such as a heat storage water tank, phase change heat storage, etc.), and then released when needed, that is, the adjustable capability of the heat energy storage device in the t scheduling period includes energy increase and energy reduction.
In some optional embodiments of the present application, an upper energy storage limit, a lower energy storage limit, and a current stored energy of the thermal energy storage device may be determined first; determining the increasable energy of the stored energy of the thermal energy storage device based on the upper energy storage limit and the current stored energy; determining the reducible energy of the stored energy of the thermal energy storage device based on the lower stored energy limit and the current stored energy, thereby obtaining a second adjustable range of the stored energy of the thermal energy storage device.
In particular, the increased energy of the thermal energy storage device
Figure BDA0003385720720000101
The expression of (a) is:
Figure BDA0003385720720000102
reduced energy of thermal energy storage device
Figure BDA0003385720720000103
The expression of (a) is:
Figure BDA0003385720720000104
in the formula: ewSHmaxAnd EWsHminRespectively an upper energy storage limit and a lower energy storage limit of the thermal energy storage equipment; ewSH，tThe current stored energy of the thermal energy storage device is scheduled for a period of time t.
A third determining module 34 for determining a third adjustable range of heating capacity of the temperature controlled load in the building.
When the heating capacity of the temperature control load in the building is adjusted, firstly, the comfort level of the environment temperature where the user is located needs to be considered, the comfort temperature of the user often has a range, and the embodiment can realize demand side response by adjusting the temperature range where the user is located.
In some optional embodiments of the present application, a plurality of temperature intervals corresponding to the building may be determined based on the preset comfort environment standard, and the temperature intervals at least include: a low temperature uncomfortable area, a secondary comfortable area, a primary comfortable area and a high temperature uncomfortable area, wherein the temperature in the low temperature uncomfortable area is less than the temperature in the secondary comfortable area is less than the temperature in the primary comfortable area is less than the temperature in the high temperature uncomfortable area. FIG. 2 is a schematic diagram showing alternative comfort environment criteria versus temperature range, wherein low temperatures are not usedTemperature T e [ T ] in comfort zone0，t，TII，down) The temperature T in the secondary comfort zone is ∈ [ T ∈ [ ]II，down，TII，up) Temperature T ∈ [ T ] in primary comfort zoneI，down，TI，up) Temperature T E [ T ] in high temperature uncomfortable areaI，up，∞)。
Thereafter, a current indoor temperature of the building may be determined, and a target temperature interval to which the indoor temperature of the building is desired to be adjusted may be determined, and then a third adjustable range of the heating amount of the temperature controlled load may be determined based on the current indoor temperature and a temperature threshold of the target temperature interval.
Specifically, when the current indoor temperature is within the target temperature interval, determining an increased heating capacity of the temperature controlled load based on a maximum temperature value in the target temperature interval and the current indoor temperature, and determining a decreased heating capacity of the temperature controlled load based on the current indoor temperature and a minimum temperature value in the target temperature interval; determining an increased heating capacity of the temperature controlled load based on at least a maximum temperature value in the target temperature interval and the current indoor temperature when the current indoor temperature is lower than the temperature in the target temperature interval; when the current indoor temperature is higher than the temperature in the target temperature interval, the reducible heating amount of the temperature controlled load is determined based on at least the current indoor temperature and the temperature minimum value in the target temperature interval.
Next, the calculation of the amount of heating reducible heat Δ Q 'of the temperature control load in each temperature range will be described in detail'h，tAnd can increase the heating capacity delta Qh，tWherein, Tin，tIndicating the indoor temperature at the start of the T schedule period (i.e., the current indoor temperature), Tin，t0Indicating a target temperature to which it is desired to condition the interior of the building.
At the present indoor temperature in the low temperature uncomfortable region, i.e. T0，t≤Tin，t＜TII，downIn time, there are:
ΔQ′h，t＝[0，k·(Tin，t-T0，t))T0，t≤Tin，t0＜TII，down(Low temperature uncomfortable area)
Figure BDA0003385720720000111
Where ρ is an air density, and k is ρ CV, which is about 1.29kg/m3(ii) a C is the specific heat capacity of air, and is usually 1X 103J/(kg. DEG C); v is the indoor air volume, and can be calculated by measurement.
Similarly, at the current indoor temperature, in the comfort zone of class II, i.e. TII，down≤Tin，t＜TII，upIn time, there are:
Figure BDA0003385720720000121
Figure BDA0003385720720000122
at the current indoor temperature in the comfort zone of class I, i.e. TI，down≤Tin，t＜TI，upIn time, there are:
Figure BDA0003385720720000123
Figure BDA0003385720720000124
at the present room temperature in the high temperature uncomfortable region, i.e. Tin，t≥TI，upIn time, there are:
Figure BDA0003385720720000125
ΔQ″h，t＝[0，k·(Tin，t0-Tin，t))，TI，up≤Tin，t0(high temperature uncomfortable area)
A fourth determining module 36, configured to determine a power utilization state of the current grid load, where the power utilization state includes: peak power consumption state and valley power consumption state.
And the adjusting module 38 is used for adjusting the energy consumption of the building body within a first adjustable range, adjusting the energy storage amount of the thermal energy storage device within a second adjustable range and adjusting the heating amount of the temperature control load within a third adjustable range based on the power utilization state.
It can be understood that, when the power consumption state of the power grid load is the power consumption peak state, the power grid side expects the user to reduce the power consumption appropriately to cut down the power consumption peak, so the building energy consumption needs to be reduced, specifically, the building body energy consumption can be reduced in the first adjustable range, the energy storage of the thermal energy storage device can be released in the second adjustable range, and the heating capacity of the temperature control load can be reduced in the third adjustable range; when the power consumption state of the power grid load is the power consumption valley state, the power grid side expects that the proper improvement power consumption of the user fills the power consumption valley, so the building energy consumption can be increased, specifically, the building body energy consumption can be increased in the first adjustable range, the energy storage of the thermal energy storage equipment is increased in the second adjustable range, and the heating capacity of the temperature control load is increased in the third adjustable range.
Generally, energy scheduling of building energy consumption is performed by power, so in the case of winter heating, the heating power that can be reduced by building energy consumption is:
Figure BDA0003385720720000131
the heating power which can be increased by building energy consumption is as follows:
Figure BDA0003385720720000132
in some alternative embodiments of the present application, considering that the power increasable and power reducible of the energy consumption of the building is mainly regulated by the electric heating devices in the building, the power increasable and power reducible of the electric heating devices can be considered to be equivalent to the power increasable and power reducible of the energy consumption of the building, namely:
Figure BDA0003385720720000133
Figure BDA0003385720720000134
in the formula (I), the compound is shown in the specification,
Figure BDA0003385720720000135
and
Figure BDA0003385720720000136
the power of the electric heating equipment can be reduced and increased.
After considering the energy efficiency ratio of the equipment, the maximum increase of the building energy consumption can be adjusted as follows:
Figure BDA0003385720720000137
the maximum reducible regulating power of the building energy consumption is as follows:
Figure BDA0003385720720000138
in the formula, CopEHThe energy efficiency ratio of the electric heating equipment.
It should be noted that, in the embodiment of the present application, each module in the building energy consumption adjusting apparatus corresponds to an implementation step of the building energy consumption adjusting method in embodiment 1 one to one, and since the detailed description is already performed in embodiment 1, details that are not partially represented in this embodiment may refer to embodiment 1, and are not described herein again.
Example 3
According to an embodiment of the present application, there is also provided a non-volatile storage medium including a stored program, wherein, when the program is executed, a device in which the non-volatile storage medium is located is controlled to execute the building energy consumption adjusting method in embodiment 1.
According to an embodiment of the present application, there is also provided a processor for executing a program, wherein the method for adjusting building energy consumption in embodiment 1 is performed when the program is executed.
Optionally, the following steps are implemented when the program is running: determining a first adjustable range of building body energy consumption of a building; determining a second adjustable range of the stored energy of the thermal energy storage device in the building; determining a third adjustable range of the heating capacity of the temperature control load in the building; determining the power utilization state of the current power grid load, wherein the power utilization state comprises the following steps: the power utilization peak state and the power utilization valley state; based on the power consumption state, the energy consumption of the building body is adjusted within a first adjustable range, the energy storage amount of the heat energy storage equipment is adjusted within a second adjustable range, and the heating amount of the temperature control load is adjusted within a third adjustable range.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit may be a division of a logic function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (10)

1. A building energy consumption adjusting method is characterized by comprising the following steps:
determining a first adjustable range of building body energy consumption of a building;
determining a second adjustable range of stored energy of a thermal energy storage device in the building;
determining a third adjustable range of the heating capacity of the temperature control load in the building;
determining a power utilization state of a current power grid load, wherein the power utilization state comprises: the power utilization peak state and the power utilization valley state;
and adjusting the energy consumption of the building body within the first adjustable range, adjusting the energy storage amount of the thermal energy storage device within the second adjustable range and adjusting the heating amount of the temperature control load within the third adjustable range based on the power utilization state.
2. The method of claim 1, wherein determining the first adjustable range of building body energy consumption for the building comprises:
determining a building body energy consumption of the building, wherein the building body energy consumption at least comprises: heat loss of the wall of the building, supplementary heat of solar radiation to the building and heat dissipation of an indoor heat source of the building;
determining a first adjustable range of the building body energy consumption based on the wall lost heat, the supplementary heat and the indoor heat source heat dissipation capacity.
3. The method of claim 1, wherein determining a second adjustable range of stored energy of a thermal energy storage device in the building comprises:
determining an upper energy storage limit, a lower energy storage limit and current stored energy of the thermal energy storage equipment;
determining an increasable amount of stored energy of the thermal energy storage device based on the upper stored energy limit and the current stored energy; and determining reducible energy of the energy storage of the thermal energy storage device based on the lower energy storage limit and the current stored energy to obtain a second adjustable range of the energy storage of the thermal energy storage device.
4. The method of claim 1, wherein prior to determining the third adjustable range of heating capacity for the temperature-controlled load in the building, the method further comprises:
determining a plurality of temperature intervals corresponding to the building based on a preset comfortable environment standard, wherein the plurality of temperature intervals at least comprise: a low temperature uncomfortable area, a secondary comfortable area, a primary comfortable area, and a high temperature uncomfortable area, wherein the temperature in the low temperature uncomfortable area < the temperature in the secondary comfortable area < the temperature in the primary comfortable area < the temperature in the high temperature uncomfortable area.
5. The method of claim 4, wherein determining a third adjustable range of heating capacity for the temperature-controlled load in the building comprises:
determining a current indoor temperature of the building;
determining a target temperature interval to which it is desired to adjust the indoor temperature of the building;
determining a third adjustable range of the heating capacity of the temperature controlled load based on the current indoor temperature and the temperature threshold of the target temperature interval.
6. The method of claim 5, wherein determining a third adjustable range of heating capacity of the temperature controlled load based on the current indoor temperature and the temperature threshold of the target temperature interval comprises:
determining an increased heating capacity of the temperature controlled load based on a maximum temperature value in the target temperature interval and the current indoor temperature, and determining a decreased heating capacity of the temperature controlled load based on the current indoor temperature and a minimum temperature value in the target temperature interval, when the current indoor temperature is in the target temperature interval;
determining an increased heating capacity of the temperature controlled load based on at least a maximum temperature value in the target temperature interval and the current indoor temperature when the current indoor temperature is lower than a temperature in the target temperature interval;
determining a reducible heating amount of the temperature controlled load based on at least a minimum value of the current indoor temperature and a temperature in the target temperature interval when the current indoor temperature is higher than the temperature in the target temperature interval.
7. The method of claim 1, wherein adjusting the building body energy consumption within the first adjustable range, adjusting the energy storage of the thermal energy storage device within the second adjustable range, and adjusting the heating capacity of the temperature controlled load within the third adjustable range based on the power usage status comprises:
when the power utilization state is a power utilization peak state, reducing the energy consumption of the building body within the first adjustable range, releasing the stored energy of the thermal energy storage equipment within the second adjustable range, and reducing the heating capacity of the temperature control load within the third adjustable range;
and when the power utilization state is a power utilization valley state, increasing the energy consumption of the building body within the first adjustable range, increasing the energy storage capacity of the thermal energy storage device within the second adjustable range, and increasing the heating capacity of the temperature control load within the third adjustable range.
8. A building energy consumption adjustment device, comprising:
the first determining module is used for determining a first adjustable range of the energy consumption of a building body of the building;
the second determining module is used for determining a second adjustable range of the energy storage of the thermal energy storage equipment in the building;
the third determining module is used for determining a third adjustable range of the heating capacity of the temperature control load in the building;
a fourth determining module, configured to determine a power utilization state of a current grid load, where the power utilization state includes: the power utilization peak state and the power utilization valley state;
and the adjusting module is used for adjusting the energy consumption of the building body within the first adjustable range, adjusting the energy storage amount of the thermal energy storage device within the second adjustable range and adjusting the heating amount of the temperature control load within the third adjustable range based on the power utilization state.
9. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein when the program runs, the non-volatile storage medium is controlled to execute the building energy consumption adjusting method according to any one of claims 1 to 7.
10. A processor, characterized in that the processor is configured to run a program, wherein the program is configured to execute the building energy consumption adjusting method according to any one of claims 1 to 7 when running.
CN202111453251.1A 2021-11-30 2021-11-30 Building energy consumption adjusting method and device Pending CN114138035A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110443446A (en) * 2019-06-30 2019-11-12 天津大学 The energy source station economic load dispatching method of the virtual energy storage containing building under demand response mechanism
CN112733236A (en) * 2021-01-08 2021-04-30 国网北京市电力公司 Method and system for optimizing temperature control load in building facing comprehensive comfort level
CN112990574A (en) * 2021-03-12 2021-06-18 中国农业大学 Assessment method and system based on building energy consumption flexible adjustment potential index
CN113569380A (en) * 2021-06-22 2021-10-29 国网北京市电力公司 Method and device for correcting adjusting capability of building comprehensive energy consumption

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110443446A (en) * 2019-06-30 2019-11-12 天津大学 The energy source station economic load dispatching method of the virtual energy storage containing building under demand response mechanism
CN112733236A (en) * 2021-01-08 2021-04-30 国网北京市电力公司 Method and system for optimizing temperature control load in building facing comprehensive comfort level
CN112990574A (en) * 2021-03-12 2021-06-18 中国农业大学 Assessment method and system based on building energy consumption flexible adjustment potential index
CN113569380A (en) * 2021-06-22 2021-10-29 国网北京市电力公司 Method and device for correcting adjusting capability of building comprehensive energy consumption

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Application publication date: 20220304