Abstract
Maximum photovoltaic (PV) hosting capacity of low voltage (LV) power networks is mainly restricted by either thermal limits of network components or grid voltage quality resulted from high penetration of distributed PV systems. This
maximum hosting capacity may be lower than the available solar potential of geographic area due to power network limitations even though all rooftops are fully occupied with PV modules. Therefore, it becomes more of an issue to know what exactly limits higher PV penetration level and which solutions should be engaged efficiently such as over sizing distribution transformer or using solar inverters with new grid support features. This study presents a methodology for the estimation of maximum PV hosting capacity including IEC 60076-7 based thermal model of distribution transformer. Certain part of a real distribution network of Braedstrup suburban area in Denmark is used in simulation as a case study model. Furthermore, varying solutions (utilizing thermally upgraded insulation paper in transformers, reactive power services from solar inverters, etc.) are implemented on the network under investigation to examine PV penetration level and finally key results learnt from the study are provided.
maximum hosting capacity may be lower than the available solar potential of geographic area due to power network limitations even though all rooftops are fully occupied with PV modules. Therefore, it becomes more of an issue to know what exactly limits higher PV penetration level and which solutions should be engaged efficiently such as over sizing distribution transformer or using solar inverters with new grid support features. This study presents a methodology for the estimation of maximum PV hosting capacity including IEC 60076-7 based thermal model of distribution transformer. Certain part of a real distribution network of Braedstrup suburban area in Denmark is used in simulation as a case study model. Furthermore, varying solutions (utilizing thermally upgraded insulation paper in transformers, reactive power services from solar inverters, etc.) are implemented on the network under investigation to examine PV penetration level and finally key results learnt from the study are provided.
| Original language | English |
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| Title of host publication | 1st International Workshop on Integration of Solar Power into Power Systems |
| Number of pages | 6 |
| Publisher | Energynautics GmbH |
| Publication date | 24 Oct 2011 |
| ISBN (Print) | 978-3-9813870-4-9 |
| Publication status | Published - 24 Oct 2011 |
| Event | 1st International Workshop on Integration of Solar Power into Power Systems - Aarhus, Denmark Duration: 24 Oct 2011 → 24 Oct 2011 |
Conference
| Conference | 1st International Workshop on Integration of Solar Power into Power Systems |
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| Country/Territory | Denmark |
| City | Aarhus |
| Period | 24/10/2011 → 24/10/2011 |