The building is combined with a photovoltaic system. The combination of building and photovoltaic system is to install the packaged photovoltaic module (flat panel or curved panel) on the roof of residential or building, and then connect with inverter, storage battery, controller, load and other devices, and can be connected with the external power grid. The photovoltaic system and the power grid are connected in parallel to supply power to the residence (user), the excess power is fed back to the power grid, and the insufficient power is taken from the power grid.

2023-08-18

Integration of Photovoltaic and Building

In the 1980 s, in addition to a large number of photovoltaic ground systems used in remote areas without electricity, nomadic families, navigation lighthouses, isolated island residents power supply and some special areas, has begun to enter the general individual users, networked users and commercial buildings. After entering the 1990 s, with the increasing depletion of conventional energy, the rising cost of power generation and the increasing environmental awareness of people, some countries have begun to implement and promote the building integrated photovoltaic (BIPV) system. China has a large population and high population density. BIPV system combines buildings with photovoltaic systems or photovoltaic modules, which can not only save the area of photovoltaic power generation system, but also reduce its cost, which is in line with China's national conditions, so there is a very broad development in China Space.

2023-08-18

Photovoltaic agriculture

"Photovoltaic + agriculture" is to carry out stent-type photovoltaic power generation and agricultural production activities at the same time in the same piece of land. The global agricultural land area is about 0.5 billion square kilometers, accounting for 38% of the global land area.

2023-08-18

Advantages of photovoltaic power generation system

Photovoltaic discovery system has the following ten advantages, take a look at it.

2023-08-18

What is the composition of photovoltaic power generation system?

A typical solar photovoltaic power generation system consists of a solar cell array (module), a cable, a power electronic converter (inverter), an energy storage device (battery), a load, I .e., a user, etc., as shown in FIG. 1. Among them, the solar cell array and the energy storage device are the power supply system, the controller and the power electronic converter are the control and protection system, and the load is the system terminal.

2023-08-18

Classification of photovoltaic power generation system

Solar photovoltaic power generation system according to the relationship with the power system can be divided into two categories: stand-alone photovoltaic power generation system (Stand-alone PV System) and grid-connected photovoltaic power generation system (Grid-connected PV System).

2023-08-18

Controller, inverter and battery of photovoltaic power generation system

The photovoltaic controller is an automatic control device that can automatically prevent the battery from overcharging and overdischarging. Using high-speed CPU microprocessor and high-precision A/D analog-to-digital converter, it is a microcomputer data acquisition and monitoring control system, which can not only quickly collect the current working state of the photovoltaic system in real time, obtain the working information of the PV station at any time, but also accumulate the historical data of the PV station in detail, which provides an accurate and sufficient basis for evaluating the rationality of the PV system design and testing the reliability of the quality of the system components, it also has a serial communication data transmission function, which can centrally manage and remotely control multiple photovoltaic system substations.

2023-08-18

Photovoltaic modules for photovoltaic power generation systems

Photovoltaic module is the core part of the whole power generation system, which is composed of photovoltaic module pieces or photovoltaic modules of different specifications cut by laser cutting machine or steel wire cutting machine. Since the current and voltage of a single photovoltaic cell are very small, high voltage should be obtained in series first, then high current should be obtained in parallel, output through a diode (to prevent current return transmission), then packaged on a stainless steel, aluminum or other non-metallic frame, installed on the upper glass and the back plate on the back, filled with nitrogen and sealed. Combining photovoltaic modules in series and parallel becomes a photovoltaic module array, also called photovoltaic array.

2023-08-18

< 1...22 23 24 25 >