光伏工程
太阳能发电的能源是来自地球外部天体的能源(主要是太阳能)，是太阳中的氢原子核在超高温时聚变释放的巨大能量，人类所需能量的绝大部分都直接或间接地来自太阳。我们生活所需的煤炭、石油、天然气等化石燃料都是因为各种植物通过光合作用把太阳能转变成化学能在植物体内贮存下来后，再由埋在地下的动植物经过漫长的地质年代形成。此外，水能、风能、波浪能、海流能等也都是由太阳能转换来的。
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光伏工程
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太阳能发电的能源是来自地球外部天体的能源(主要是太阳能)，是太阳中的氢原子核在超高温时聚变释放的巨大能量，人类所需能量的绝大部分都直接或间接地来自太阳。我们生活所需的煤炭、石油、天然气等化石燃料都是因为各种植物通过光合作用把太阳能转变成化学能在植物体内贮存下来后，再由埋在地下的动植物经过漫长的地质年代形成。此外，水能、风能、波浪能、海流能等也都是由太阳能转换来的。
太阳能发电系统主要包括：太阳能电池组件(阵列)、控制器、蓄电池、逆变器、用户即照明负载等组成。其中，太阳能电池组件和蓄电池为电源系统，控制器和逆变器为控制保护系统，负载为系统终端。
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