What is photovoltaic power generation?
What is photovoltaic power generation?
Since the 30, 60" target was put forward, the state has strongly emphasized the development of clean energy. As we all know, China’s carbon emissions mainly come from the power industry, especially thermal power. The burning of coal and charcoal is a well-known way of generating electricity. In recent years, energy In the process of transformation, wind power and photovoltaic power have gradually stepped onto the stage. In particular, photovoltaic power generation has already occupied the C position, turning from a chaser in the world to a front runner.
Many people are not familiar with photovoltaic power generation, but only know that it is clean energy and has a place in the world. However, many issues such as the principle of power generation, the method of power generation, why it is clean, what advantages it has, how to operate, and many other issues are not understood. Today, we will introduce it in simple and easy to understand language.
Photovoltaic power generation, that is, solar power generation, directly converts light energy into electrical energy by shining sunlight on the solar cell materials, thereby generating electricity, which is also called the photovoltaic effect. The solar cell material here is the most important medium, a semiconductor that absorbs sunlight. The most commonly used element in solar cell products is silicon, because silicon has the advantages of large reserves, high stability, and mature purification technology. At present, the most common materials on the market are monocrystalline silicon and polycrystalline silicon. Of course, there are other materials, but their maturity and economic value are relatively low. As far as these two battery materials are concerned, monocrystalline silicon has a higher cost, but has a better conversion rate, while polycrystalline silicon is the opposite.
Back to the electricity generation process, the current converted by the battery panel is direct current, and what we use in our daily production and life is alternating current. It's like, you need to eat when you are hungry, and now you have a pile of raw rice that needs to be cooked. At this time, something called an inverter is needed to invert DC power into AC power. That is to turn raw rice into mature rice so that it can be eaten. After this, a container is needed to hold the rice grains together. In photovoltaic power generation, there is also such a component, called a combiner box, which collects AC power and can use electricity. So in terms of the principle and process of power generation, it is actually very simple. As long as there is the sun, electricity can be generated, and it is an inexhaustible and inexhaustible renewable energy source. In the process of power generation, there is no noise, no pollution to the environment, and the key is that no radiation harmful to the human body is produced. Environmentally friendly, low-carbon and safe, it is not without reason that photovoltaics have their own protagonist aura.
Nowadays, photovoltaics are mainly divided into centralized photovoltaics and distributed photovoltaics in terms of layout. Centralized photovoltaics are often built in places with large areas and sparsely populated areas and excellent lighting conditions. The local electricity demand is not large. Therefore, it is necessary to transmit electricity to distant cities and towns through UHV. It is usually equipped with a booster station to reduce the low voltage. It can be transported smoothly when it is elevated.
Then there is the most popular distributed photovoltaic now. Most industrial and commercial enterprises use their own factory roofs to build photovoltaic power stations. After all, if the roof is idle, it is also idle. If you build a power station, you can not only use it for your own use, but you can also connect the surplus power to the grid to earn electricity bills. And how do you do the usual maintenance and operation of such a large area of photovoltaic power station?
Starwin Solar provides different kinds of solar mounting structures for PV power stations.
