【摘要】 为了提高常规光伏电池组件利用率,该文采用单抛物反射面建立了聚光光伏系统,并与常规平板系统对比,进行了性能研究。该系统利用控制机构,根据太阳高度角决定单抛物反射面是否立起工作,对太阳辐射低倍率聚光,避免了聚光后辐照度过高,表面温度升高也较小。对比常规平板系统,夏至附近矩路电流提高了约12.6%,开路电压提高了约0.5%;冬至附近,短路电流提高了约36.4%,开路电压提高了约1.4%。另一方面,夏至附近不聚光的最高辐照度为842W/m~2,冬至附近聚光的最高辐照度为834W/m~2,不会损伤光伏电池组件,可采用普通多晶硅光伏电池组件,且不需要冷却系统。研究表明,采用该系统能以较小的成本获得以上受益,发掘了常规光伏电池组件应用潜力,为进一步提高光伏发电系统的性价比提供了方法。更多还原

【Abstract】 A concentrating photovoltaic system with a single parabolic reflector and processes a comparative performance study on it to a conventional photovoltaic system was presented.The system used a control module to set a single parabol- ic reflector and concentrate solar radiation during the low solar radiation period,and it can avoid high solar radiation and high tempereature rasing.Compared to a conventional photovoltaic system,during midsummer,short-circuit current in- creased in the order of 12.6%,open-circuit voltage increased in the order of 0.5 %;and during midwinter,short-circuit current increased in the order of 36.4%,open circuit-voltage increased in the order of 1.4%.At the same time,the peak solar radiation intensity was 842W/m2 with no concentrating during midsummer,and 834W/m2 with concentrating during midwinter.That means the system does no harm to photovoltaic module,and conventional photovohaic modules can be used and cooling system was not needed.The result showed that profits mentioned above can be gained with less cost,while it can provide enhancement of conventional photovoltaic system and a new way to increase the efficiency of photovoltaic modules.更多还原