Building self-sustaining power supply system based on photovoltaic curtain wall and implementation method thereof

Abstract

The invention relates to the field of photovoltaic power generation technologies and energy-saving buildings, in particular to an intelligent building emergency power supply system, and specifically relates to a building self-sustaining power supply system based on a photovoltaic curtain wall. Which comprises a building body and a photovoltaic curtain wall arranged on the surface of the building body, and is characterized by further comprising an electric power system, and the electric power system is used for converting solar energy absorbed by the photovoltaic curtain wall into electric power, storing the electric power and supplying power to the building body. According to the building self-sustaining power supply system based on the photovoltaic curtain wall and the implementation method of the building self-sustaining power supply system, the influence of sudden power failure conditions of large and medium cities on basic use functions of the building is solved, light energy serves as an energy source, power generation of the building serves as a main target, and a whole set of power generation and supply intelligent system and the construction method of the power generation and supply intelligent system are established.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic power generation technology and energy-saving buildings, and in particular to an intelligent building emergency power supply system, specifically a building self-sustaining power supply system based on a photovoltaic curtain wall and an implementation method thereof. Background Art

[0002] With the increase of population density and urban construction density, urban power grids are facing many hidden dangers of power supply; these hidden dangers not only affect the stability and safety of power supply, but also may have an adverse impact on the lives of urban residents and the economic development of the city, such as: 1) Increased load density: The dense population and buildings have led to a sharp increase in the load density of urban power grids. This has increased the pressure on power grid lines and equipment, accelerated the aging of the power grid, and increased the risk of failures and power outages; 2) Old equipment: Some urban power grid equipment has been in use for a long time and has problems such as aging and wear.

[0003] The above factors have caused the reliability of power supply in urban power grids to decline unnoticed; once a large-scale power outage occurs, it will not only affect the normal lives of residents, but may also cause significant losses to the city’s economic development. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned defects and to propose a building self-sustaining power supply system based on a photovoltaic curtain wall, which can provide self-sustaining power for the building when the power grid cannot supply power.

[0005] In order to achieve the above object, the present invention is achieved in the following ways: A self-sustaining power supply system for a building based on a photovoltaic curtain wall comprises a building body, a photovoltaic curtain wall arranged on the surface of the building body, and a power system for converting solar energy absorbed by the photovoltaic curtain wall into electricity and storing it and supplying power to the building body.

[0006] The power system includes a power storage module, a boost module, a municipal high-voltage power grid, an elevator system in the building body and other electrical equipment; the power storage module and the boost module are used to convert the solar energy absorbed by the photovoltaic curtain wall into power storage or to supply power to the building body or to be incorporated into the municipal high-voltage power grid.

[0007] The above-mentioned building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention has the following advantages: 1. Photovoltaic panels are installed on the non-essential lighting parts of the curtain wall as the exterior facade enclosure system, thus establishing a "curtain wall-photovoltaic" facade system for buildings that converts light energy into electrical energy. The electrical energy of this system is based on the production of the building itself, establishing a green environmental protection functional system for the basic use functions of the building; 2. By combining photovoltaic power generation with the city power grid, a complete set of intelligent power supply and power replenishment systems will be established to promote the construction of modern environmentally friendly and energy-saving cities; 3. The building's "curtain wall-photovoltaic" facade system avoids the adverse effects of power system failures in large and medium-sized cities on urban life.

[0008] Furthermore, the present invention also proposes an implementation method of the building self-sustaining power supply system based on the above photovoltaic curtain wall, comprising: Step 1: Design and layout the photovoltaic curtain wall; Step 2: Design and construction of embedded parts; Step 3: Design and construction of the keel layout of the external enclosure system; Step 4: Check the stress of embedded parts and connectors; Step 5: Design and construction of power consumption system.

[0009] In the implementation method of the above-mentioned building self-sustaining power supply system based on photovoltaic curtain wall: In step 1, during the layout process of the design phase of the curtain wall and photovoltaic panels of the external enclosure system, the external windows are designed based on the external columns and floor panels, with the lighting of the external windows as the primary design, and the curtain wall is designed based on the premise of ensuring that the location of the external windows of the building is reasonable and the lighting meets the requirements of the specifications. Secondly, the photovoltaic panels are designed based on the location of the external columns and floor panels of the building as the main axis, and the aesthetics of actual use is taken as the main principle to decide whether the vacant position between the curtain wall and the photovoltaic panels will be filled by the curtain wall or the photovoltaic panels; In step 2, after the overall layout design of the curtain wall and photovoltaic panels of the facade is completed, the approximate load of the keel fixing the facade is preliminarily calculated, and then the embedded parts fixing the keel are calculated to determine their quantity and position; In step 3, ensure that each curtain wall and photovoltaic panel has a secure installation position, and the connection parts must be connected with bolts to facilitate cleaning and maintenance during later use; In step 4, since it is impossible to accurately calculate all the loads on the facade, especially the number of keels, during the design process of embedded parts and connectors, the forces on the embedded parts and connectors will be affected to a certain extent. During the force review process, if the load requirements are not met, the embedded parts and connectors need to be appropriately strengthened.

[0010] Furthermore, in the implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall proposed in the present invention, the design of the power consumption system includes the following logical relationship: (1) When the power supply system is operating normally, the photovoltaic system's power generation will first be charged by the power storage system to ensure that the power storage system is saturated to ensure the use of reserve power in emergencies. After the power storage system is saturated, the photovoltaic system's power generation will enter the boosting system, and the boosted power will be incorporated into the high-voltage power grid to provide power for other facilities in the city. The power for elevators and other electrical equipment will be provided by the high-voltage power grid extending from the original power supply system; (2) When the power supply system fails, the entire power consumption system will be powered in five situations: (2.1) The photovoltaic system first provides electricity for the normal use of the elevator; (2.2) The photovoltaic system provides electricity for other electrical equipment in the building; (2.3) Under the condition of ensuring the normal use of electricity in buildings, the excess electric energy will enter the boosting system, and the compressed electric energy will enter the high-voltage power grid to provide electric energy for other electrical equipment in the city; (2.4) When the photovoltaic panels cannot provide power for the elevator and other equipment at night, the power storage system will provide power for the building's electrical equipment along with the original power supply system; (2.5) When the photovoltaic system is capable of generating electricity, the electricity will be used to supplement the energy storage system while ensuring the normal use of elevators and other electrical equipment, until the energy storage system is saturated, and then the boost system will supply electricity to the city power supply system. During the entire system's energy transmission process, the power supply system's control system will control the closing and disconnection of the lines not involved, thereby avoiding short circuits and energy backflow.

[0011] In summary, the photovoltaic curtain wall-based building self-sustaining power supply system and its implementation method proposed in the present invention solve the impact of sudden power outages in large and medium-sized cities on the basic use functions of buildings. With light energy as the energy source and the building's own power generation as the main goal, a complete set of power generation and power supply intelligent systems and their construction methods are established. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 1 .

[0013] Figure 2 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 2 .

[0014] Figure 3 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 3 .

[0015] Figure 4 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 4 .

[0016] Figure 5 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 5 .

[0017] Figure 6 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 6 .

[0018] Figure 7 Schematic diagram of the building self-sustaining power supply system based on photovoltaic curtain wall proposed by the present invention Figure 7 . DETAILED DESCRIPTION

[0019] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.

[0020] A self-sustaining power supply system for a building based on a photovoltaic curtain wall comprises a building body, a photovoltaic curtain wall arranged on the surface of the building body, and a power system for converting solar energy absorbed by the photovoltaic curtain wall into electricity and storing it and supplying power to the building body.

[0021] The power system includes a power storage module, a boost module, a municipal high-voltage power grid, an elevator system in the building body and other electrical equipment; the power storage module and the boost module are used to convert the solar energy absorbed by the photovoltaic curtain wall into power storage or to supply power to the building body or to be incorporated into the municipal high-voltage power grid.

[0022] The implementation method of the above photovoltaic curtain wall building self-sustaining power supply system includes: Step 1: Design and layout the photovoltaic curtain wall; Step 2: Design and construction of embedded parts; Step 3: Design and construction of the keel layout of the external enclosure system; Step 4: Check the stress of embedded parts and connectors; Step 5: Design and construction of power consumption system; The above steps specifically include: In step 1, during the layout process of the design phase of the curtain wall and photovoltaic panels of the external enclosure system, the external windows are designed based on the external columns and floor panels, with the lighting of the external windows as the primary design, and the curtain wall is designed based on the premise of ensuring that the location of the external windows of the building is reasonable and the lighting meets the requirements of the specifications. Secondly, the photovoltaic panels are designed based on the location of the external columns and floor panels of the building as the main axis, and the aesthetics of actual use is taken as the main principle to decide whether the vacant position between the curtain wall and the photovoltaic panels will be filled by the curtain wall or the photovoltaic panels; In step 2, after the overall layout design of the curtain wall and photovoltaic panels of the facade is completed, the approximate load of the keel fixing the facade is preliminarily calculated, and then the embedded parts fixing the keel are calculated to determine their quantity and position; In step 3, ensure that each curtain wall and photovoltaic panel has a secure installation position, and the connection parts must be connected with bolts to facilitate cleaning and maintenance during later use; In step 4, since it is impossible to accurately calculate all the loads on the facade, especially the number of keels, during the design process of embedded parts and connectors, the forces on the embedded parts and connectors will be affected to a certain extent. During the force review process, if the load requirements are not met, the embedded parts and connectors need to be appropriately strengthened.

[0023] In step 5, the design of the power consumption system includes the following logical relationships: (1) When the power supply system is operating normally, the photovoltaic system's power generation will first be charged by the power storage system to ensure that the power storage system is saturated to ensure the use of reserve power in emergencies. After the power storage system is saturated, the photovoltaic system's power generation will enter the boosting system, and the boosted power will be incorporated into the high-voltage power grid to provide power for other facilities in the city. The power for elevators and other electrical equipment will be provided by the high-voltage power grid extending from the original power supply system; (2) When the power supply system fails, the entire power consumption system will be powered in five situations: (2.1) The photovoltaic system first provides electricity for the normal use of the elevator; (2.2) The photovoltaic system provides electricity for other electrical equipment in the building; (2.3) Under the condition of ensuring the normal use of electricity in buildings, the excess electric energy will enter the boosting system, and the compressed electric energy will enter the high-voltage power grid to provide electric energy for other electrical equipment in the city; (2.4) When the photovoltaic panels cannot provide power for the elevator and other equipment at night, the power storage system will provide power for the building's electrical equipment along with the original power supply system; (2.5) When the photovoltaic system is capable of generating electricity, the electricity will be used to supplement the energy storage system while ensuring the normal use of elevators and other electrical equipment, until the energy storage system is saturated, and then the boost system will supply electricity to the city power supply system. During the entire system's energy transmission process, the power supply system's control system will control the closing and disconnection of the lines not involved, thereby avoiding short circuits and energy backflow.

[0024] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A building self-sustaining power supply system based on a photovoltaic curtain wall, comprising a building body and a photovoltaic curtain wall arranged on the surface of the building body, characterized in that: The utility model also comprises an electric power system, which is used for converting the solar energy absorbed by the photovoltaic curtain wall into electric power and storing the electric power for supplying power to the building body.

2. The building self-sustaining power supply system based on photovoltaic curtain wall according to claim 1 is characterized by: The power system includes a power storage module, a boost module, a municipal high-voltage power grid, an elevator system in the building body and other electrical equipment; the power storage module and the boost module are used to convert the solar energy absorbed by the photovoltaic curtain wall into power storage or to supply power to the building body or to be incorporated into the municipal high-voltage power grid.

3. The implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall according to claim 1 or 2 is characterized by: include Step 1: Design and layout the photovoltaic curtain wall; Step 2: Design and construction of embedded parts; Step 3: Design and construction of the keel layout of the external enclosure system; Step 4: Check the stress of embedded parts and connectors; Step 5: Design and construction of power consumption system.

4. The implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall according to claim 3 is characterized by: In step 1, during the layout of the design phase of the curtain wall and photovoltaic panels of the external enclosure system, the outer windows are used as the primary design based on the outer columns and floor slabs, ensuring that the positions of the building's outer windows are reasonable and that the lighting meets the regulatory requirements. The curtain wall is then laid out and designed. Secondly, the photovoltaic panels are laid out and designed with the positions of the building's outer columns and floor slabs as the main axis. The main principle is to combine the aesthetics of actual use to decide whether the vacant positions between the curtain wall and the photovoltaic panels will be filled with curtain walls or photovoltaic panels.

5. The implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall according to claim 3 is characterized by: In step 2, after the overall layout design of the curtain wall and photovoltaic panels of the facade is completed, the approximate load of the keel fixing the facade is preliminarily calculated, and then the embedded parts fixing the keel are calculated to determine their quantity and position.

6. The implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall according to claim 3 is characterized by: In step 3, ensure that each curtain wall and photovoltaic panel has a secure installation position, and the connecting parts need to be connected with bolts to facilitate cleaning and maintenance during later use.

7. The implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall according to claim 3 is characterized by: In step 4, since it is impossible to accurately calculate all the loads on the facade, especially the number of keels, during the design process of embedded parts and connectors, the forces on the embedded parts and connectors will be affected to a certain extent. During the force review process, if the load requirements are not met, the embedded parts and connectors need to be appropriately strengthened.

8. The implementation method of the building self-sustaining power supply system based on the photovoltaic curtain wall according to claim 3 is characterized by: The design of the power consumption system described in step 5 includes the following logical relationships: (1) When the power supply system is operating normally, the photovoltaic system's power generation will first be charged by the power storage system to ensure that the power storage system is saturated to ensure the use of reserve power in emergencies. After the power storage system is saturated, the photovoltaic system's power generation will enter the boosting system, and the boosted power will be incorporated into the high-voltage power grid to provide power for other facilities in the city. The power for elevators and other electrical equipment will be provided by the high-voltage power grid extending from the original power supply system; (2) When the power supply system fails, the entire power consumption system will be powered in five situations: (2.1) The photovoltaic system first provides electricity for the normal use of the elevator; (2.2) The photovoltaic system provides electricity for other electrical equipment in the building; (2.3) Under the condition of ensuring the normal use of electricity in buildings, the excess electric energy will enter the boosting system, and the compressed electric energy will enter the high-voltage power grid to provide electric energy for other electrical equipment in the city; (2.4) When the photovoltaic panels cannot provide power for the elevator and other equipment at night, the power storage system will provide power for the building's electrical equipment along with the original power supply system; (2.5) When the photovoltaic system is capable of generating electricity, the electricity will be used to supplement the energy storage system while ensuring the normal use of elevators and other electrical equipment, until the energy storage system is saturated, and then the boost system will supply electricity to the city power supply system. During the entire system's energy transmission process, the power supply system's control system will control the closing and disconnection of the lines not involved, thereby avoiding short circuits and energy backflow.

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