The construction of photovoltaic power plants not only endangers human health, but also provides the earth with high-quality, clean and green energy. This is the direction of human future energy development.
Radiation refers to the process in which an object emits energy into the surrounding space in the form of waves or particles. As long as the temperature of all objects in nature is above absolute zero, they will continuously transmit energy to the outside world in the form of electromagnetic waves or particles. In other words, everything in the world has radiation, including the human body itself. However, not all radiation is harmful, and some radiation is even inseparable from us, such as the sun's radiation-sunlight, the growth of all things, everything on the earth needs sunlight.
Photovoltaic power generation directly converts light energy into direct current through the characteristics of semiconductors, and then converts direct current to alternating current through an inverter. The photovoltaic system consists of photovoltaic modules, brackets, DC cables, inverters, AC cables, power distribution cabinets and transformers. The stent is not charged, so it will naturally not generate electromagnetic radiation. There is direct current inside the photovoltaic module and the direct current cable, and the direction remains unchanged. They can only generate electric fields, not magnetic fields.
Although the output transformer is alternating current, the frequency is very low, only 50 Hz, and the generated magnetic field is very low. An inverter is a device that converts direct current into alternating current. There is a power electronic converter inside. The frequency is usually 5-20KHz, so an alternating electric field is generated, and therefore electromagnetic radiation is also generated. The country has strict standards for the electromagnetic compatibility of photovoltaic inverters. Compared with household appliances, the electromagnetic radiation of photovoltaic inverters is close to that of laptop computers, and is lower than that of induction cookers, hair dryers and refrigerators.
The construction of photovoltaic power plants not only endangers human health, but also provides the earth with high-quality, clean and green energy. This is the direction of human future energy development.
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