Bipv Building Integrated Solar Power Design And Application (figure)
Solar Energy Power supply Building integrated BIPV (BuildingIntegratedPhotovoltaics) is the solar photovoltaic (PV) power generation systems installed in existing buildings, or the PV power generation system and the new building while the design, construction and installation of photovoltaic power generation to meet both functional, but also and building a friendly combination.
Solar BIPV, begins abroad. In recent years, overseas the implementation of photovoltaic solar energy combined with the building application form, which greatly promoted the development of photovoltaic systems. In China, the photovoltaic industry is the rapid development, and the government also introduced the relevant supporting policies, these favorable policies will accelerate the integration of solar power construction Building energy efficiency Hot pace. This article from the building integrated solar power and elaborate the design and application.
1, the combination of solar power and building methods
Currently, about 60% of the world’s solar power system for the grid, and its main application form is the construction and the combination of solar power systems, BIPV is becoming the industry’s most concern industry.
The combination of solar power and building two ways: one is the construction and the combination of solar power systems; the other is the combination of Architecture and photovoltaic devices.
1, building integrated solar power system
The packaged photovoltaic components (flat or curved panels) installed on the roof of the building, and then with the inverter, battery, controller, load and other associated equipment. PV systems can also be a certain device and the public grid.
2, combining architecture and photovoltaic devices
Further integration of architecture and PV is the photovoltaic device integrated with building materials. Generally used on the surface of Building Envelopes Paint , Decorative ceramic tile or glass curtain wall, designed to protect and decorate the building. If the photovoltaic device to replace part of the building materials, namely, photovoltaic components do the roof, walls and windows, it can be used as building material can also be used to generate electricity, can be said to make the best the United States.
PV and architecture in the form of the combination include the combination with the roof, combined with the wall, combined with shading devices, etc..
2, BIPV solar power system design
Solar Power Building Integrated PV system is dependent on or attached to a building New Energy Use of form, its subject is architecture, the object is a solar power system. Therefore, BIPV design and impact should be without prejudice to the effect of construction, structural safety, function and the basic principle of life.
BIPV solar PV power station power system design and system designs, solar power stations are generally required under the load or the power to design the photovoltaic array size and auxiliary systems, BIPV is a square the size and construction according to PV lighting requirements to determine the power generation and auxiliary systems.
BIPV solar power system design consists of three parts, namely, photovoltaic array design, photovoltaic modules and photovoltaic power generation system design.
1, photovoltaic array design, and building roofs, walls combined with or integrated on the one hand to consider building effects, such as color and plate size; the other hand, consider the subject to light conditions, such as direction and angle.
2, PV module design, related to the battery slice selection (Considering the appearance of color and power output) and layout (combination plate size, power requirements, battery slice size); component assembly design (component sealing and installation form).
3, photovoltaic power generation system design, that type of system (grid system or separate systems) to determine the controller, inverter, batteries, etc. selection, lightning protection, system cabling, sensors and display areas design.
3, BIPV design issues need to be noticed
1, the mechanical properties of PV modules
As an ordinary photovoltaic components, as long as the detection by IEC61215, to meet the anti-130km / h (2,400 Pa) wind and hail resistant 25mm diameter 23m / s impact requirements. Components of the same size used in BIPV buildings, in different locations, different floor height, and the different installation methods, the mechanical performance requirements of the glass it may be completely different.
2, architectural aesthetics of A building is the key point is that the buildings look. But the common PV module junction box generally stuck to the back panels, junction boxes more easily destroy the overall coordination of building a sense, is usually not acceptable for the architect, so BIPV building junction box eliminates the need or request hidden.
3, building structure and electrical properties of PV modules with
In the design of BIPV panels to consider when building their own voltage and current PV systems are convenient for equipment selection, but the building’s facade may be of some size, the form of geometric shapes of varying composition, this will result in component between the voltage and current are different this time, the facade can be considered to partition and adjust the sub-grid, so that BIPV components close to the electrical properties of standard components, you can also use the cells of different sizes to meet the requirements of sub-grid to maximize the effect to meet the building facade.
In addition, BIPV component, taking into account the requirements of building thermal insulation, indoor lighting solar power system requirements, and life issues.
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