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            星火太陽能和你一起了解更多太陽能資訊

            光伏發電是否有輻射、污染和噪音?科學的分析來了

            返回列表 來源: 中創光伏 發布日期: 2023.02.28 瀏覽次數:

            光伏發電是將光能通過半導體的特性直接轉化為直流電能的,再通過逆變器將直流電轉換成可以被我們使用的交流電。


            光伏系統是由光伏組件,支架,直流電纜,逆變器,交流電纜,配電柜,變壓器等組成,其中支架不帶電,自然不會產生電磁輻射。光伏組件和直流電纜,里面是直流電流,方向沒有變化,只能產生電場,不能產生磁場。


            輸出變壓器雖然是交流電,但頻率很低,只有50Hz,產生的磁場很低。逆變器是把直流電轉為交流電的設備,里面有電力電子變換,頻率一般為5-20KHz,因此會產生交變電場,所以也會產生電磁輻射。國家對光伏逆變器電磁兼容性有嚴格的標準。


            圖片

            (各種家用電器和光伏組件的輻射對比)


            光伏逆變器的電磁輻射,同家用電器相比,大約和筆記本電腦差不多,低于電磁爐,電吹風,冰箱。


            因此,建設光伏電站不僅不會對人的健康產生危害,還可以為地球提供綠色清潔的優質能源,是人類未來能源發展方向。

            Photovoltaic power generation is the direct conversion of light energy into direct current energy through the characteristics of semiconductor, and then through the inverter to convert direct current into alternating current that can be used by us.

            Photovoltaic system is composed of photovoltaic module, bracket, DC cable, inverter, AC cable, distribution cabinet, transformer, etc., the bracket is not charged, naturally will not produce electromagnetic radiation. Photovoltaic modules and DC cables contain DC current, and the direction does not change. They can only generate electric fields, but not magnetic fields.

            Although the output transformer is AC, the frequency is very low, only 50Hz, and the magnetic field generated is very low. Inverter is the direct current into alternating current equipment, which has the power electronic transformation, the frequency is generally 5-20KHz, so it will produce alternating electric field, so it will also produce electromagnetic radiation. The state has strict standards for electromagnetic compatibility of photovoltaic inverters.

            The picture

            (Radiation comparison of various household appliances and photovoltaic modules)

            The electromagnetic radiation of photovoltaic inverters, compared with household appliances, is about the same as that of a laptop computer, and lower than induction hobs, hair dryers, and refrigerators.

            Therefore, the construction of photovoltaic power stations will not cause harm to people's health, but also can provide the earth with green, clean and high-quality energy, which is the future development direction of human energy.


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