Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE
Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE
Département fédéral de l’environnement, des transports, de l’énergie et de la communication DETEC Office fédéral de l’énergie OFEN SOS-PVI: SECURITY OF SUPPLY PHOTOVOLTAIC INVERTER COMBINED UPS, POWER QUALITY AND GRID SUPPORT FUNCTION IN A PHOTO- VOLTAIC INVERTER FOR WEAK LOW VOLTAGE GRIDS Author and Co-Authors Patrick Gaillard Annual Institution / Company Report 2007 Maxwell Technologies SA Address Route Montena 65, CH - 1728 Rossens Telephone, E-mail, Homepage +41 (0) 26 411 85 39, pgaillard@maxwell.com, www.maxwell.com Project- / Contract Number SUSTDEV-1.2.3 Duration of the Project (from – to) 01.10.2005 - 31.12.2008 Date December 2007 ABSTRACT The SoS-PVi project aims at developing an inverter, dedicated to the injection of photovoltaic energy into low voltage grids, with special features so that first, the impact on the grid of the very quick fluctuations of sun irradiation is minimised and even more, the PV system provides grid support on demand and secondly, the end user is protected against poor power quality and outages of the grid. Seite 205 von 288
Challenges The liberalisation of the electricity market, combined with international pressure to reduce CO2 emissions, lead to new architectures of the future electricity networks with a large penetration of distributed energy resources, in particular from renewable sources. But the current integration of distributed energy resources is performed in such a way that their intermittency impacts strongly on the grids, increasing concerns about power quality and the security of supply by the end users. Reciprocally, poor power quality from the grid impacts on the PV systems, reducing production, but moreover, it impacts on the end user, its production, services and comfort. Therefore the project intends to: � minimise the impact of PV systems on the grid operation and planning; � ensure security and quality of electricity supply to houses and buildings with PV installations; � increase performance ratio of PV systems; � increase penetration of PV in the networks. Technical Approach In the project 6 partners join efforts for developing a Security of Supply PV Inverter of which, at the end of the project, 4 prototypes will have proved in field tests to provide both power quality and UPS function to the house grid and to support the external grid on demand. The energy supply will be ensured by storage systems for which the lithium-ion technology will be compared to a hybrid of leadacid battery and supercapacitors in terms of performance and cost of ownership. SoS-PV architecture with lithium-ion or lead-acid battery with supercaps Seite 206 von 288 SOS-PVI, P. Gaillard, Maxwell Technologies 2/4
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Département fédéral de l’environnement,<br />
des transports, de l’énergie et de la communication DETEC<br />
Office fédéral de l’énergie OFEN<br />
SOS-PVI: SECURITY OF SUPPLY<br />
PHOTOVOLTAIC INVERTER<br />
COMBINED UPS, POWER QUALITY AND<br />
GRID SUPPORT FUNCTION IN A PHOTO-<br />
VOLTAIC INVERTER FOR WEAK LOW<br />
VOLTAGE GRIDS<br />
Author and Co-Authors Patrick Gaillard<br />
Annual Institution / Company Report 2007 Maxwell Technologies SA<br />
Address Route Montena 65, CH - 1728 Rossens<br />
Telephone, E-mail, Homepage +41 (0) 26 411 85 39, pgaillard@maxwell.com, www.maxwell.com<br />
Project- / Contract Number SUSTDEV-1.2.3<br />
Duration of the Project (from – to) 01.10.2005 - 31.12.<strong>2008</strong><br />
Date December 2007<br />
ABSTRACT<br />
The SoS-PVi project aims at developing an inverter, dedicated to the injection of photovoltaic energy<br />
into low voltage grids, with special features so that first, the impact on the grid of the very quick fluctuations<br />
of sun irradiation is minimised and even more, the PV system provides grid support on demand<br />
and secondly, the end user is protected against poor power quality and outages of the grid.<br />
Seite 205 von 288
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