ANÁLISIS DEL FUNCIONAMIENTO DE DISTINTAS TECNOLOGÍAS FOTOVOLTAICAS EN VARIOS ENCLAVES DE PERÚ

La presente Tesis Doctoral trata de realizar una contribución a la caracterización del funcionamiento y a la estimación de la degradación de tecnologías fotovoltaicas ubicadas en países con latitudes bajas. Este objetivo principal se alcanzará mediante el logro de dos objetivos específicos. El primero de ellos ha consistido en determinar los valores de índices de producción (de referencia, del campo fotovoltaico y final del sistema) así como las métricas de rendimiento (factor de rendimiento y factor de rendimiento DC) en cuatro casos de estudio de sistemas fotovoltaicos ubicados en tres ciudades de Perú considerando escalas temporales mensuales y anuales. El segundo de los objetivos ha consistido en estimar los valores de la tasa de degradación anual que experimentan las tecnologías analizadas en dos de los cuatro casos de estudio referidos en el punto anterior.This PhD Thesis aims to make a contribution to the characterization of the performance and estimation of the degradation of photovoltaic technologies located in low latitude countries. This main goal will be achieved through the attainment of two specific objectives. The first one has consisted of determining the values of production indexes (reference, PV array energy and final yield) as well as performance metrics (performance ratio and DC performance ratio) in four grid-connected photovoltaic systems case studies located in three Peruvian cities considering monthly and annual time scales. The second objective consisted of estimating the values of the annual degradation rate experienced by the technologies analyzed in two of the four case studies referred to in the previous point.Tesis Univ. Jaén. Departamento de Ingeniería Electrónica y Automátic

Analysis of the Performance of Various PV Module Technologies in Peru

A knowledge gap exists about the actual behavior of PV grid-connected systems (PVGCS) using various PV technologies in Peru. This paper presents the results of an over three-year-long performance evaluation of a 3.3-kWp monocrystalline silicon (sc-Si) PVGCS located in Arequipa, a 3.3-kWp sc-Si PVGCS located in Tacna, and a 3-kWp policrystalline (mc-Si) PVGCS located in Lima. An assessment of the performance of a 3.5-kWp amorphous silicon/crystalline silicon hetero-junction (a-Si/µc-Si) PVGCS during over one and a half years of being in Lima is also presented. The annual final yields obtained lie within 1770–1992 kWh/kW, 1505–1540 kWh/kW, and 736–833 kWh/kW for Arequipa, Tacna, and Lima, respectively, while the annual PV array energy yield achieved by a-Si/µc-Si is 1338 kWh/kW. The annual performance ratio stays in the vicinity of 0.83 for sc-Si in Arequipa and Tacna while this parameter ranges from 0.70 to 0.77 for mc-Si in Lima. An outstanding DC annual performance ratio of 0.97 is found for a-Si/µc-Si in the latter site. The use of sc-Si and presumably, mc-Si PV modules in desert climates, such as that of Arequipa and Tacna, is encouraged. However, sc-Si and presumably, mc-Si-technologies experience remarkable temperature and low irradiance losses in Lima. By contrast, a-Si/µc-Si PV modules perform much better in the latter site thanks to being less influenced by both temperature and low light levels