分布式光伏电站可靠性评价

随着光伏发电大规模增长,光伏电站的可靠性评价受到了更多关注.本文通过分析分布式电站特征问题,如复杂环境、电网波动性大、散热条件差、复杂安装条件等,并运用故障树理论建立了分布式光伏电站的可靠性评价方法.通过对系统中各器件的失效模型进行分析,获得发电系统的整体失效数据,结论提出了几种合理改善电站可靠性的措施意见.该结论有助于建立更加灵活高效的分布式光伏发电系统维护策略,并为优化分布式系统提供一整套思路,为未来光伏电站配置储能系统提供评价指标参考.

Reliability Assessment of the Distributed PV Station

With large-scale growth of the PV station,the PV station reliability assessment has received more attention.This paper has established the reliability assessment method for the distributed PV station by using fault tree theory and analyzing the characteristics of the distributed PV station,such as complex environment,power fluctuation,poor cooling conditions and complex installation conditions.By analyzing the failure model of the devices in the PV system,the whole failure data of the PV station is obtained.In conclusion,some measures to improve the reliability of the PV station has been put forward.These conclusions are helpful to establish a more flexible and efficient distributed PV station maintenance strategy,and provide a set of ideas for the optimization of the distributed PV system.