Description: Das Projekt "PV SAFETY: Verbesserung der Zuverlaessigkeit von PV-Systemen mittels eines neuen Konzepts einschliesslich eines neuen Geraets zur Lichtbogenfeststellung" wird vom Umweltbundesamt gefördert und von Fraunhofer-Institut für Solare Energiesysteme durchgeführt. General Information: Objectives The objective of the project is to develop and validate a new device to install in the DC wiring of PV systems in order to improve overall safety. This new device will be capable of - detecting faulty conditions such as electric arcs due to - failing contacts, ground faults, out of voltage circuits, etc.. In particular, the device should possibly be able to identify the location of such micro-arcs and their nature: loss of - isolation or loose contacts, and eventually clear them. The final result of the project should be the development of a comprehensive PV array safety concept including - specifications for equipment and procedures for DC-arc - prevention, arc detection and arc suppression. Technical Approach The collection of information concerning fault conditions, - especially of fires, which occurred in PV systems generated by arcs and micro-arcs in the DC wiring, connection boxes, switch boards etc. and their analysis will supply the basis to - recognize the common-mode failures generating the arc. Laboratory arc tests will permit the understanding and - characterising of the phenomena; while, by means of field - experiments, the lab results will be validated. An arc detector device which analyses the noise spectrum - created by an arc will be developed. The problem of the discrimination of signals coming from the environment (e.g. inverter or diffuse noises like radio - frequencies) will be solved for different categories of plant and site. By means of computer simulations the influence of the array - configuration on the propagation of the arc signal will be - assessed. Expected Achievements and Exploitation The outputs of this project are: - The research and the identification of common failures - causing an arc in DC wiring. - A deep knowledge of the development of an arc in DC wiring. Specifications concerning arc prevention and installation procedures. - Specification of arc containment by using suitable equipment and installation procedures. - Specification of an active arc detector circuit, using arc detection and suppression with a suitable disabling procedure. - Setting-up of a device or family of devices suitable to be installed in different PV systems to improve general safety and capable to prevent fires generated by electric DC arcs. - The arc detector device could be installed in all PV systems to be erected by the partners of the project and, with a licence agreement at reasonable conditions, by all EU PV installers. - This device should increase the safety of small and large PV power plants by providing protection against fires originated by arcs in the DC wiring of PV plants. Prime Contractor: Anit Impianti Fotovoltaici Srl.; Genova/Italy.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Fossiler Brennstoff ? Lichtbogen ? Messgerät ? Photovoltaikanlage ? Sensor ? Brandschutz ? Containment ? Elektrotechnik ? Software ? Europäische Union ? Anlagensicherheit ? Anlagenüberwachung ? Energiesystem ? Gerätesicherheit ? Geräuschanalyse ? Lärm ? Simulation ? Kraftwerk ? Informationsgewinnung ? Sicherheitsvorschrift ? Anlagenbetrieb ? other energy topics ? renewable sources of energy ?
Region: Baden-Württemberg
Bounding box: 9° .. 9° x 48.5° .. 48.5°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1996-01-01 - 1997-12-31
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