Do you know the basic principle of solar photovoltaic power generation?

Solar power this noun for you also not strange, many people have heard of photovoltaic power generation, but the understanding of it is not enough, what is the photovoltaic power generation, in fact, it is now a high-tech technology, main effect is to light the

solar term is no stranger to everyone. Many people have heard of photovoltaic power generation, but they know it is not enough. What is a photovoltaic power generation? In fact, it is today a high-tech technology, its main function is to convert sunlight directly into electricity. It can realize the light energy and electrical energy conversion, mainly because it USES the photovoltaic effect of semiconductor interface. In a word, the principle of photovoltaic power generation is quite good. So, what is the principle of photovoltaic power generation? In fact, photovoltaic power generation is the main principle of the photoelectric effect of the semiconductor. When a photon hits the metal, after a series of reaction, they will form a photoelectron. At the same time, mixed with phosphorus and boron atoms of silicon atoms will form the corresponding N type semiconductor and p-type semiconductors. When the P and N together, contact surface will form a potential difference, become a solar cell. When sunlight to pn junction, an empty hole from polar mobile P to N poles, electrons from N polar moved to P polar, form a current. In general, the light energy into electrical energy can effectively save energy. In fact, the most common form of solar energy is based on this principle. At the same time, photovoltaic power generation has many characteristics and performance advantages. More importantly, its energy conversion rate is also quite fast. In addition, its wide application range, can meet the needs of all people. Household solar power system for the construction of the methods and steps; Step 1: the feasibility analysis of feasibility analysis, we mainly consider the following questions: the ownership of the roofs, electricity price, the structure of the roof, roof area, the surrounding environment, and users of electricity, etc. Generally speaking, the photovoltaic system with state grid in parallel, thus in the process of declaration, need to satisfy two basic requirements: independent electric meter and the roof of the clear property rights. If the user's roof and other residents of the same, although the corridor all residents agree that can be built, but we do not recommend in this case, usually in order to avoid trouble and arguments. For home users, is the best way to build a house. According to the user's electricity consumption and available roof area, we can design an optimal solution for the user. Meet user demand, and spontaneous use as much as possible. Step 2: design and construction design and construction should be according to the different installation requirements of different users building, and the actual situation. Consider the arrangement of components, shadow analysis, the direction of the cable, etc. Sometimes must be based on user requirements and the actual situation of the roof to select different components products. In the design and construction, not only to consider the design of beautiful, also consider the practicability, security and stability. In the process of photovoltaic power station construction, construction phase is perhaps the most concern. Scaffolds should be paid attention to the layout, fixed, the safety of the inverter, the safety of the cable, etc. Step 3: power grid connection and running parallel operation of this stage is relatively simple. After completion of construction, residents can apply to the electric power business hall for interconnection, electric power company will send someone to install meters, hooked up to the contract signed with the users, and online debugging. Electric power company will be free for users to install two meters, a photovoltaic electric meter and a two-way meters. Electricity bills are paid by the local power bureau, the payment need to consult the local power bureau.