Impact on voltage rise of PV generation in future swedish urban areas with high PV penetration

QC 20141208
There have been a large amount of statements from different countries, claiming that the integration of photovoltaic generation in the distribution grids can eventually impact the power quality and pose challenges for the distribution system operator. In Sweden, the level of penetration of small scale distributed generation is still low and no such problems have been observed. This study is conducted to investigate the voltage levels in an urban distribution grid when the level of photovoltaic generation is increased. The study is done by modeling the Swedish urban area by PSCAD. The aspects of the model include network design of a real distribution grid, everyday load, photovoltaic generation based on real data, photovoltaic penetrations at different levels and considers the current regulations in Sweden. The results indicate that there are no problems with overvoltages even with a high penetration of photovoltaic generation. Instead the risk of over-current through the installed cables seems to be a greater limitation. The loading of the distribution transformers is decreased due to the mix of commercial and domestic loads in the local grid.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
over-voltage
photovoltaic generation
photovoltaic penetration
power system modelling
power quality
voltage profiles
solar irradiation
distribution grid
power system planning
Electrical Engineering
Elektro- och systemteknik

Magnusson, Jesper,1984-KTH,Elektroteknisk teori och konstruktion(Swepub:kth)u1lnws1y (författare)
Engdahl, GöranKTH,Elektroteknisk teori och konstruktion(Swepub:kth)u13sc4ho (författare)
Liljestrand, Lars (författare)
KTHElektroteknisk teori och konstruktion (creator_code:org_t)

Ingår i:ENERGYCON 2014 - IEEE International Energy Conference: IEEE Computer Society, s. 904-9119781479924493

Av författaren/redakt...: Hou, Yining, 198 ...; Magnusson, Jespe ...; Engdahl, Göran; Liljestrand, Lar ...

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