文献翻译——光伏并网发电系统的性能参数.docVIP

外文文献资料 Performance Parameters for Grid-Connected PV Systems The use of appropriate performance parameters facilitates the comparison of grid-connected photovoltaic(PV) systems that may differ with respect to design, technology, or geographic location. Four performance parameters that define the overall system performance with respect to the energy production, solar resource, and overall effect of system losses are the following: final PV system yield, reference yield, performance ratio, and PVUSA rating. These performance parameters are discussed for their suitability in providing desired information for PV system design and performance evaluation and are demonstrated for a variety of technologies, designs, and geographic locations. Also discussed are methodologies for determining system a.c. power ratings in the design phase using multipliers developed from measured performance parameters. INTRODUCTION Accurate and consistent evaluations of photovoltaic(PV) system performance are critical for the continuing development of the PV industry. For component manufacturers, performance evaluations are benchmarks of quality for existing products. For research and development teams, they are a key metric for helping to identify future needs. For systems integrators and end customers, they are vital tools for evaluating products and product quality to guide future decision-making. As the industry has grown, a clear need has arisen for greater use of and education about appropriate industry-standard performance parameters for PV systems. These performance parameters allow the detection of operational problems; facilitate the comparison of systems that may differ with respect to design, technology, or geographic location; and validate models for system performance estimation during the design phase. Industry-wide use of standard performance parameters and system ratings will assist investors in evaluating different proposals and technologies, giving them greater confidence in