Energy regulation and control method and system for low-energy-consumption building

Abstract

The invention discloses an energy regulation and control method and system for a low-energy-consumption building. The method comprises the following steps: constructing a common network type power supply network of the low-energy-consumption building; based on the solar power supply network, calculating solar power supply quantity; performing electric quantity prediction on the low-energy-consumption building to obtain the required electric quantity of the low-energy-consumption building; performing supply judgment on the solar power supply quantity based on the required electric quantity to obtain a supply judgment result, and performing compensation calculation on the required electric quantity based on the supply judgment result to obtain compensation electric quantity; based on the compensation electric quantity, the commercial power supply network is regulated and controlled in real time, and the demand electric quantity of the low-energy-consumption building is met; the system comprises a network construction module, a solar energy calculation module, an electric quantity calculation module, a compensation calculation module and an energy regulation and control module. Clean energy solar energy is introduced, carbon emission is reduced, meanwhile, building energy consumption is greatly reduced, the commercial power supply quantity is regulated and controlled in real time by calculating the compensation electric quantity, and the requirement for the total electricity consumption of a low-energy-consumption building is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy regulation and control, and in particular relates to an energy regulation and control method and system for a low-energy consumption building. Background Art

[0002] A low-energy building refers to a building that uses a variety of energy-saving technologies in terms of envelope structure, energy and equipment systems, lighting, intelligent control, and renewable energy utilization. Its energy consumption level is far lower than that of conventional buildings. It is a building that does not use or uses as little primary energy as possible, but uses renewable energy.

[0003] Most low-energy buildings use environmental integrated machines to achieve cooling, heating and ventilation functions. Currently, the operation of environmental integrated machines is all powered by the municipal power grid. If the municipal power grid is under maintenance or repair, the environmental integrated machines cannot operate normally and cannot provide cooling, heating and ventilation functions for low-energy buildings. Summary of the invention

[0004] The present invention proposes an energy control method and system for low-energy-consumption buildings to solve the technical problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides an energy control method for a low-energy building, comprising the following steps: Constructing a common power supply network for low-energy buildings, the common power supply network comprising: a solar power supply network and a city power supply network; Based on the solar power supply network, calculating the solar power supply amount; Predict the power consumption of low-energy buildings and obtain the power demand of low-energy buildings; Based on the required power, a supply judgment is made on the solar power supply to obtain a supply judgment result, and based on the supply judgment result, a compensation calculation is made on the required power to obtain a compensation power; Based on the compensation power, the mains power supply network is regulated to meet the power demand of low-energy consumption buildings.

[0006] Preferably, the process of constructing a common grid power supply for low energy consumption buildings is as follows: The photovoltaic environment integrated machine is installed around the low-energy building, and the low-energy building is powered by the photovoltaic environment integrated machine. The photovoltaic environment integrated machine includes: an outdoor unit and a photovoltaic module, and the outdoor unit is connected to the solar power supply network and the municipal power supply network respectively.

[0007] Preferably, the process of calculating the solar power supply comprises: The average sunshine time, photovoltaic module wattage and conversion efficiency of solar energy are obtained, and the daily solar power generation is calculated based on the average sunshine time, photovoltaic panel wattage and conversion efficiency; based on the different lighting time in the four seasons, a graph of the change in solar power generation in a year is drawn, and the power generation in a year is accumulated as the solar power supply.

[0008] Preferably, the process of obtaining the power demand of the low-energy consumption building further includes: Obtain the building category, building grade, electrical equipment and building purpose of the low-energy building, and calculate the unit building area index based on the building category, building grade, electrical equipment and building purpose; The building area of ​​the low-energy building is obtained, and based on the unit building area index and the building area, the building power consumption is calculated. Based on the different electricity consumption times in the four seasons, a graph of the change in power consumption of the low-energy building within a year is drawn, and the power consumption within a year is accumulated as the power demand of the low-energy building.

[0009] Preferably, the process of obtaining the compensation power includes: Based on the required power, the solar power supply is judged to be supplied. If the solar power supply is greater than or equal to the required power, there is no need to perform compensation calculation on the required power; if the solar power supply is less than the required power, compensation calculation is performed on the required power; Based on the supply judgment result, the difference between the required power and the solar power supply is calculated to obtain the compensation power.

[0010] In order to achieve the above technical objectives, the present invention also provides an energy control system for low-energy buildings, comprising: a network construction module, a solar energy calculation module, an electric quantity calculation module, a compensation calculation module and an energy control module, wherein the network construction module, the solar energy calculation module, the electric quantity calculation module and the compensation calculation module are connected in sequence, the compensation calculation module is connected to the network construction module and the energy control module respectively, and the energy control module is connected to the network construction module; The network construction module is used to construct a common power supply network for low-energy buildings, and the common power supply network includes: a solar power supply network and a city power supply network; The solar energy calculation module is used to calculate the solar energy supply amount based on the solar energy power supply network; The power calculation module is used to predict the power demand of low-energy buildings; The compensation calculation module is used to make a supply judgment on the solar power supply based on the required power to obtain a supply judgment result, and to make a compensation calculation on the required power based on the supply judgment result to obtain a compensation power; The energy control module is used to control the mains power supply network based on the compensation power to meet the power demand of low-energy consumption buildings.

[0011] Preferably, the network construction module is used to obtain a photovoltaic environmental integrated machine, install the photovoltaic environmental integrated machine around a low-energy building, and provide common grid power supply to the low-energy building through the photovoltaic environmental integrated machine, wherein the photovoltaic environmental integrated machine includes: an outdoor unit and a photovoltaic module, and the outdoor unit is respectively connected to a solar power supply network and a municipal power supply network.

[0012] Preferably, the solar energy calculation module is used to obtain the average sunshine time, photovoltaic module wattage and conversion efficiency of solar energy, and calculate the daily solar power generation based on the average sunshine time, photovoltaic panel wattage and conversion efficiency; based on the different lighting time in the four seasons, draw a graph of the change in solar power generation in one year, and accumulate the power generation in one year as the solar power supply.

[0013] Preferably, the electricity calculation module is used to obtain the building category, building grade, electrical equipment and building purpose of the low-energy building, and calculate the unit building area index based on the building category, building grade, electrical equipment and building purpose; it is also used to obtain the building area of ​​the low-energy building, and calculate the building electricity consumption based on the unit building area index and the building area, and draw a diagram of the change of electricity consumption of the low-energy building within one year based on the different electricity consumption time in the four seasons, and accumulate the electricity consumption within one year as the electricity demand of the low-energy building.

[0014] Preferably, the compensation calculation module comprises: a judgment unit and a compensation calculation unit; The judgment unit is used to make a supply judgment on the solar power supply based on the required power. If the solar power supply is greater than or equal to the required power, there is no need to perform compensation calculation on the required power; if the solar power supply is less than the required power, compensation calculation is performed on the required power; The compensation calculation unit is used to calculate the difference between the required power and the solar power supply based on the supply judgment result to obtain the compensation power.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention provides an energy control method for low-energy buildings. First, a common power supply network for low-energy buildings is constructed; the solar power supply is calculated through the solar power supply network; then, the power supply of the low-energy building is predicted to obtain the power demand of the low-energy building; then, the supply of the solar power supply is judged based on the power demand, and the compensation calculation of the power demand is performed based on the supply judgment result to obtain the compensation power; finally, the mains power supply network is regulated based on the compensation power to meet the power demand of the low-energy building. The present invention introduces clean energy solar energy to reduce carbon emissions and significantly reduce building energy consumption. By calculating the compensation power, the mains power supply is regulated in real time to meet the total power demand of the low-energy building. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 is a flow chart of a method according to an embodiment of the present invention; Figure 2 A schematic diagram of a photovoltaic environment integrated machine according to an embodiment of the present invention applied to a low-energy building; Figure 3 Schematic diagram of a system according to an embodiment of the present invention. Implementation

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here. Example

[0019] like Figure 1 As shown, this embodiment provides an energy control method for a low-energy building, comprising the following steps: Construct a common power supply network for low-energy buildings, which includes: solar power supply network and city power supply network; Based on the solar power supply network, the solar power supply amount is calculated; Predict the power consumption of low-energy buildings and obtain the power demand of low-energy buildings; Based on the demanded power, a supply judgment is made on the solar power supply to obtain a supply judgment result, and based on the supply judgment result, a compensation calculation is made on the demanded power to obtain a compensation power; Based on the compensation electricity, the mains power supply network is regulated to meet the electricity demand of low-energy buildings.

[0020] In this embodiment, the process of constructing a common grid power supply for low-energy buildings is as follows: The photovoltaic environmental integrated machine is installed around the low-energy consumption building, and the low-energy consumption building is powered by the photovoltaic environmental integrated machine. The photovoltaic environmental integrated machine includes: an outdoor unit and a photovoltaic module. The outdoor unit is connected to the solar power supply network and the municipal power supply network respectively.

[0021] like Figure 2 As shown, the photovoltaic environment integrated machine includes: an indoor unit, an outdoor unit and a photovoltaic module; Photovoltaic panels to capture solar energy and power the outdoor unit; The outdoor unit is also connected to the mains power grid. The photovoltaic modules and the mains power supply the outdoor unit together, with the photovoltaic modules supplying power to the outdoor unit first. The outdoor unit converts AC power into DC power, and finally provides 310V DC power to the indoor unit. The indoor unit is used to provide cooling, heating and ventilation functions for low-energy buildings. The indoor unit includes: a supply fan, an exhaust fan, an internal circulation fan, a heat recovery exchange core and a filter; In this embodiment, the outdoor unit is equipped with a power input interface, which includes: a photovoltaic end interface and a mains end interface. The photovoltaic component is connected to the outdoor unit through the photovoltaic end interface, and the mains power grid is connected to the outdoor unit through the mains end interface. A common power supply network is provided for low-energy buildings based on the photovoltaic component and the mains power grid.

[0022] In this embodiment, the photovoltaic environmental integrated machine integrates the grid-connected hybrid power supply technology that combines photovoltaic power generation with municipal electricity, perfectly integrating the energy saving, environmental protection, and safety of solar energy with the performance of the environmental integrated machine, providing fresh air purification and auxiliary heating and cooling functions for low-energy buildings, greatly reducing building energy consumption, using clean energy, and further reducing carbon emissions.

[0023] In this embodiment, it also includes: a process of preferentially selecting solar energy to power low-energy buildings, installing a control module on a circuit board of an outdoor unit, the control module including: a first control unit, a compensation calculation unit, and a second control unit, and setting a first priority level and a second priority level for the first control unit and the second control unit respectively; Based on the first priority level, the outdoor unit is solar-powered by the photovoltaic assembly in the first control unit; Based on the second priority level, the outdoor unit is supplied with mains power through the mains power grid in the second control unit.

[0024] In this embodiment, the process of calculating the solar power supply includes: obtaining the average sunshine time, photovoltaic module wattage and conversion efficiency of solar energy, and calculating the daily solar power generation based on the average sunshine time, photovoltaic panel wattage and conversion efficiency; based on the different lighting time in the four seasons, drawing a solar power generation change graph in one year, and accumulating the power generation in one year as the solar power supply.

[0025] In this embodiment, the process of obtaining the power demand of the low-energy building also includes: obtaining the building category, building grade, power equipment and building purpose of the low-energy building, and calculating the unit building area index based on the building category, building grade, power equipment and building purpose; obtaining the building area of ​​the low-energy building, and calculating the building power consumption based on the unit building area index and the building area, and drawing a power consumption change graph of the low-energy building within one year based on the different power consumption time in the four seasons, and accumulating the power consumption within one year as the power demand of the low-energy building.

[0026] The power generation change graph and the power consumption change graph can help estimate in advance whether the power generated by solar energy can meet the power demand of low-energy buildings in real time.

[0027] In this embodiment, when the solar energy supply is sufficient, all the power can be supplied by the solar energy. When the solar energy supply is insufficient, the shortfall can be compensated by the mains electricity. The compensation calculation unit adopts a single chip microcomputer.

[0028] The process of obtaining the compensation power includes: Based on the power demand, the solar power supply is judged. If the solar power supply is greater than or equal to the power demand, there is no need to calculate the compensation for the power demand; if the solar power supply is less than the power demand, the compensation for the power demand is calculated; Based on the supply judgment result, the difference between the required electricity and the solar power supply is calculated to obtain the compensation electricity. Example

[0029] like Figure 3 As shown, this embodiment provides an energy control system for a low-energy building, including: a network construction module, a solar energy calculation module, an electricity calculation module, a compensation calculation module and an energy control module, wherein the network construction module, the solar energy calculation module, the electricity calculation module and the compensation calculation module are connected in sequence, the compensation calculation module is connected to the network construction module and the energy control module respectively, and the energy control module is connected to the network construction module; A network construction module is used to construct a common power supply network for low-energy buildings. The common power supply network includes: a solar power supply network and a city power supply network; A solar energy calculation module, used for calculating the solar energy supply amount based on the solar energy supply network; The power calculation module is used to predict the power demand of low-energy buildings; A compensation calculation module is used to make a supply judgment on the solar power supply based on the demand power, obtain a supply judgment result, and perform compensation calculation on the demand power based on the supply judgment result to obtain a compensation power; The energy control module is used to control the mains power supply network based on the compensation power to meet the power demand of low-energy buildings.

[0030] In this embodiment, the network construction module is used to obtain a photovoltaic environmental integrated machine, install the photovoltaic environmental integrated machine around a low-energy building, and provide common grid power supply to the low-energy building through the photovoltaic environmental integrated machine, wherein the photovoltaic environmental integrated machine includes: an outdoor unit and a photovoltaic module, and the outdoor unit is respectively connected to a solar power supply network and a municipal power supply network.

[0031] In this embodiment, the solar energy calculation module is used to obtain the average sunshine time, photovoltaic module wattage and conversion efficiency of solar energy, and calculate the daily solar power generation based on the average sunshine time, photovoltaic panel wattage and conversion efficiency; based on the different lighting time in the four seasons, a solar energy power generation change graph is drawn in one year, and the power generation in one year is accumulated as the solar power supply.

[0032] In this embodiment, the electricity calculation module is used to obtain the building category, building grade, electrical equipment and building purpose of the low-energy building, and calculate the unit building area index based on the building category, building grade, electrical equipment and building purpose; it is also used to obtain the building area of ​​the low-energy building, and calculate the building electricity consumption based on the unit building area index and the building area. Based on the different electricity consumption time in the four seasons, a diagram of the change of electricity consumption of the low-energy building within one year is drawn, and the electricity consumption within one year is accumulated as the electricity demand of the low-energy building.

[0033] In this embodiment, the compensation calculation module includes: a judgment unit and a compensation calculation unit; A judgment unit is used to judge the supply of solar power based on the required power. If the solar power is greater than or equal to the required power, there is no need to perform compensation calculation for the required power; if the solar power is less than the required power, compensation calculation is performed for the required power; The compensation calculation unit is used to calculate the difference between the required power and the solar power supply based on the supply judgment result to obtain the compensation power.

[0034] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for regulating energy in a low-energy building, characterized in that: The following steps are involved: Constructing a common power supply network for low-energy buildings, the common power supply network comprising: a solar power supply network and a city power supply network; Based on the solar power supply network, calculating the solar power supply amount; Predict the power consumption of low-energy buildings and obtain the power demand of low-energy buildings; Based on the required power, a supply judgment is made on the solar power supply to obtain a supply judgment result, and based on the supply judgment result, a compensation calculation is made on the required power to obtain a compensation power; Based on the compensation power, the mains power supply network is regulated in real time to meet the power demand of low-energy consumption buildings.

2. The energy control method for low-energy buildings according to claim 1 is characterized in that: The process of building a grid-connected power supply for low-energy buildings: The photovoltaic environment integrated machine is installed around the low-energy building, and the low-energy building is powered by the photovoltaic environment integrated machine. The photovoltaic environment integrated machine includes: an outdoor unit and a photovoltaic module, and the outdoor unit is connected to the solar power supply network and the municipal power supply network respectively.

3. The energy control method for low-energy buildings according to claim 2 is characterized in that: The process of calculating the solar power supply includes: The average sunshine time, photovoltaic module wattage and conversion efficiency of solar energy are obtained, and the daily solar power generation is calculated based on the average sunshine time, photovoltaic panel wattage and conversion efficiency; based on the different lighting time in the four seasons, a graph of the change in solar power generation in a year is drawn, and the power generation in a year is accumulated as the solar power supply.

4. The energy control method for low-energy buildings according to claim 1 is characterized in that: The process of obtaining the power demand of low-energy buildings also includes: Obtain the building category, building grade, electrical equipment and building purpose of the low-energy building, and calculate the unit building area index based on the building category, building grade, electrical equipment and building purpose; The building area of ​​the low-energy building is obtained, and based on the unit building area index and the building area, the building power consumption is calculated. Based on the different electricity consumption times in the four seasons, a graph of the change in power consumption of the low-energy building within a year is drawn, and the power consumption within a year is accumulated as the power demand of the low-energy building.

5. The energy control method for low-energy buildings according to claim 4 is characterized in that: The process of obtaining the compensation power includes: Based on the required power, the solar power supply is judged to be supplied. If the solar power supply is greater than or equal to the required power, there is no need to perform compensation calculation on the required power; if the solar power supply is less than the required power, compensation calculation is performed on the required power; Based on the supply judgment result, the difference between the required power and the solar power supply is calculated to obtain the compensation power.

6. An energy control system for low-energy buildings, characterized in that: include: A network construction module, a solar energy calculation module, an electric quantity calculation module, a compensation calculation module and an energy control module, wherein the network construction module, the solar energy calculation module, the electric quantity calculation module and the compensation calculation module are connected in sequence, the compensation calculation module is connected to the network construction module and the energy control module respectively, and the energy control module is connected to the network construction module; The network construction module is used to construct a common power supply network for low-energy buildings, and the common power supply network includes: a solar power supply network and a city power supply network; The solar energy calculation module is used to calculate the solar energy supply amount based on the solar energy power supply network; The power calculation module is used to predict the power demand of low-energy buildings; The compensation calculation module is used to make a supply judgment on the solar power supply based on the required power to obtain a supply judgment result, and to make a compensation calculation on the required power based on the supply judgment result to obtain a compensation power; The energy control module is used to control the mains power supply network in real time based on the compensation power to meet the power demand of low-energy consumption buildings.

7. The energy control system for low-energy buildings according to claim 6 is characterized in that: The network construction module is used to obtain a photovoltaic environmental integrated machine, install the photovoltaic environmental integrated machine around a low-energy building, and provide common grid power supply to the low-energy building through the photovoltaic environmental integrated machine, wherein the photovoltaic environmental integrated machine includes: an outdoor unit and a photovoltaic module, and the outdoor unit is connected to a solar power supply network and a municipal power supply network respectively.

8. The energy control system for low-energy buildings according to claim 7 is characterized in that: The solar energy calculation module is used to obtain the average sunshine time, photovoltaic module wattage and conversion efficiency of solar energy, and calculate the daily solar power generation based on the average sunshine time, photovoltaic panel wattage and conversion efficiency; based on the different lighting time in the four seasons, draw a graph of the change in solar power generation in a year, and accumulate the power generation in a year as the solar power supply.

9. The energy control system for low-energy buildings according to claim 6, characterized in that: The electricity calculation module is used to obtain the building category, building grade, electrical equipment and building purpose of the low-energy building, and calculate the unit building area index based on the building category, building grade, electrical equipment and building purpose; it is also used to obtain the building area of ​​the low-energy building, and calculate the building electricity consumption based on the unit building area index and the building area. Based on the different electricity consumption times in the four seasons, a diagram of the change in electricity consumption of the low-energy building within a year is drawn, and the electricity consumption within a year is accumulated as the electricity demand of the low-energy building.

10. The energy control system for low-energy buildings according to claim 9, characterized in that: The compensation calculation module includes: a judgment unit and a compensation calculation unit; The judgment unit is used to make a supply judgment on the solar power supply based on the required power. If the solar power supply is greater than or equal to the required power, there is no need to perform compensation calculation on the required power; if the solar power supply is less than the required power, compensation calculation is performed on the required power; The compensation calculation unit is used to calculate the difference between the required power and the solar power supply based on the supply judgment result to obtain the compensation power.

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