要想知道光伏電站的輻射有多大，首先，我們要先了解一下什么叫輻射。簡單通俗來說，我們把能量以電磁波和粒子的形式時刻不停地向外擴散，這種傳送能量的方式被稱為輻射。

生活中處處充滿了輻射，比如：熱輻射、太陽輻射、光線輻射等。圍繞在人類身邊的天然磁場、家用電器等都會發(fā)出強度不同的輻射。所以明確來說我們本身就處在各種輻射之中。有些輻射因為能量較大，會對生物體造成一定的影響，但是很多輻射我們還是離不開呢，比如太陽的輻射——陽光。

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

光伏組件本身在發(fā)電時并不產(chǎn)生任何電磁輻射，但是逆變器等電力及電子設(shè)備在運行時會影響周邊的電磁環(huán)境，因此所有的逆變器都有金屬屏蔽外殼，并且符合全球規(guī)定的電磁兼容性的認證。

如下圖實測，在距離10cm左右時，逆變器的輻射值已經(jīng)是0了，而電磁爐的輻射值為13.31。

經(jīng)科學(xué)測定，太陽能光伏發(fā)電系統(tǒng)的電磁環(huán)境低于各項指標(biāo)的限值。在工頻段，太陽能光伏電站電磁環(huán)境甚至低于正常使用的常用家用電器時產(chǎn)生的量值，不會對人身健康產(chǎn)生影響。

To know how much radiation a photovoltaic power station has, first of all, we have to understand what radiation is.  In simple terms, energy is constantly spreading out in the form of electromagnetic waves and particles, and this way of transmitting energy is called radiation.  

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Life is full of radiation, such as: thermal radiation, solar radiation, light radiation and so on.  The natural magnetic field around people, household appliances and so on will emit different levels of radiation.  So specifically we are exposed to all kinds of radiation.  Some radiation can affect living organisms because of its high energy, but we still need a lot of radiation, such as the sun's radiation -- sunlight.  

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Radiation during the operation of photovoltaic systems  

Photovoltaic power generation converts light energy directly into direct current electricity through the characteristics of semiconductors, and then converts the direct current electricity into alternating current electricity that can be used by us through an inverter.  

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Photovoltaic modules themselves do not generate any electromagnetic radiation when generating electricity, but inverters and other power and electronic equipment in operation will affect the surrounding electromagnetic environment, so all inverters have metal shielded shell, and comply with the global regulations of electromagnetic compatibility certification.  

As measured in the figure below, when the distance is about 10cm, the radiation value of the inverter is 0, while the radiation value of the induction cooker is 13.31.  

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Through scientific determination, the electromagnetic environment of solar photovoltaic power generation system is lower than the limits of each index.   In the working frequency band, the electromagnetic environment of the solar photovoltaic power station is even lower than that of the common household appliances in normal use, which will not affect human health.