This paper presents results from research in the stability of DC/AC power generated by PV (photo voltaic) systems. It is well known that the generated power can change abruptly due to especially moving clouds, causing potential instability of the DC/AC power grid. The transient behavior of moving clouds is analyzed in detail via long term (several years) high speed recording of panel/inverter performance, as well as high speed recording of IV-curves of selected panels performed under Scandinavian as well as Italian weather conditions. The performance of string inverters and central inverters are analyzed and compared. The result of > 10 mill. recordings are presented by graphical and statistical means and show an extremely low occurrence of Standard Test Condition (STC) conditions).
Paasch, K., Cornaro, C., Pierro, M. (2019). PV-grid performance under dynamic weather conditions. In Proceedings of the 3rd IEEE ICDCM International Conference on DC Microgrids.
PV-grid performance under dynamic weather conditions
Cornaro Cristina;
2019-01-01
Abstract
This paper presents results from research in the stability of DC/AC power generated by PV (photo voltaic) systems. It is well known that the generated power can change abruptly due to especially moving clouds, causing potential instability of the DC/AC power grid. The transient behavior of moving clouds is analyzed in detail via long term (several years) high speed recording of panel/inverter performance, as well as high speed recording of IV-curves of selected panels performed under Scandinavian as well as Italian weather conditions. The performance of string inverters and central inverters are analyzed and compared. The result of > 10 mill. recordings are presented by graphical and statistical means and show an extremely low occurrence of Standard Test Condition (STC) conditions).| File | Dimensione | Formato | |
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