Analysis of Cloud Indicators to Derive the Bus Bar Voltage at a Local Low Voltage Distribution Grid Transformer
| Autor: | Ruf, H., Schroedter-Homscheidt, M., Beyer, H.G., Meier, F., Heilscher, G. |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| DOI: | 10.4229/28theupvsec2013-5bv.4.31 |
| Popis: | 28th European Photovoltaic Solar Energy Conference and Exhibition; 3944-3948 The distribution system operators (DSO) had planned their distribution grids historically only in view of the demand of their customers. This increased number of decentralized generators in the low voltage distribution grids turns the normative requested voltage band into a tight resource. In the meantime the DSOs have to adapt their planning rules to an increasing influence of decentralized generators with a volatile feed-in characteristic. The paper describes an approach for remove the influences of the medium voltage and the load from measured voltage data and analyses the effects of different cloud classes to the voltage at the distribution transformer bus bar of a real grid. The aim is to detect an influence indicator between cloud data and measured voltage at the bus bar of a distribution transformer in in low voltage grid with noteworthy PV penetration. Parameters derived for the weather satellite information are taken as the basis for cloud indicators and the comparison of clouds and voltage. All results were calculated without the need of specific information of the installed PV systems like orientation and declination or the specific irradiance at the PV system site. |
| Databáze: | OpenAIRE |
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