PV system monitoring and characterization

摘要: In the past few years the development of photovoltaic (PV) solar technology has led to enormous price reductions that, in combination with low installation and maintenance costs, have made PV modules a popular form of renewable electricity generation. This chapter provides a short overview of monitoring practices and parameters, which illustrate with a few examples. A grid‐connected PV system can be described in four parts, namely modules; module/inverter connections; inverter(s); and inverter/grid connections. For small‐scale systems, monitoring of energy yield is increasingly being performed using various web tools provided by inverter manufacturers or independent monitoring service companies. For statistical analysis of performance so‐called web‐scraping techniques can be used to collect performance and system data from the web portals and to organize it in databases for automatic analyses …