Among the numerous proposals for concentrator design in concentrating photovoltaics, fixed-receiver linear Fresnel reflectors (with a fixed receiver and multiple mirror strips at ground level, rotating on multiple parallel axes) seem to have been quite neglected so far in the literature. In this work we present and discuss properties and possibilities of a fixed-receiver LFR for concentrating photovoltaics, adopting flat mirrors as primary reflectors, integrated with a simple cooling system. Thanks to their technical characteristics, fixed-receiver LFRs are especially well suited for the realization of medium/large scale CPV power plants, in view of the foreseeable use of PV as one of the main electricity sources. The annual performance in a desertic site - inclusive of the energy used for cooling - is computed from a thermal simulation of the system, and it is compared to the performance of a non-concentrating PV system. We show that the use of Fresnel concentrators is currently competitive with non-concentrating systems for medium-to-large plants in suitable locations, and could be an advantageous alternative in the case of a rise in price of PV panels, or as the effect of a price drop in mirrors and Fresnel components due to scale economy. Moreover, CPV Fresnel concentrators do not suffer from drawbacks usually associated with thermal concentrating technologies, such as high working temperatures, the need for large structures and for an external power block, and management complexity. The proposed technology is easily achievable and it is not much more complex to manage than a non-concentrating PV system.

迄今为止，在聚光光伏集中器设计的众多建议中，固定接收器线性菲涅耳反射器（在地面具有固定接收器和多个反射镜条，在多个平行轴上旋转）似乎已被忽略。在这项工作中，我们介绍并讨论用于聚光光伏的固定接收器LFR的性能和可能性，采用平面镜作为主要反射器，并集成简单的冷却系统。鉴于可预见的将PV用作主要电源之一的优点，固定接收器LFR由于其技术特性，特别适合用于中型/大型CPV发电厂。沙漠地区的年度性能（包括用于冷却的能量）是通过系统的热模拟计算得出的，并将其与非集中式光伏系统的性能进行比较。我们表明，菲涅耳聚光器的使用目前与非聚光系统在合适位置的中大型工厂相比具有竞争优势，并且在光伏面板价格上涨的情况下，或者由于由于规模经济，后视镜和菲涅尔元件的价格下降。而且，CPV菲涅尔聚光器没有通常与热聚光技术相关的缺点，例如较高的工作温度，对大型结构和外部电源块的需求以及管理的复杂性。