Renewable energy Electric power components
SINTEF studies electric power components that contribute to a robust energy supply
SINTEF carries out research for Norwegian and international electrotechnical industries, energy suppliers and maritime businesses. We offer our customers international expertise with advanced laboratories and measuring equipment.
High reliability of the electrical insulation system is of key importance to any high voltage apparatus. The effect of many parameters/mechanisms needs to be carefully assessed when designing electrical insulation systems. In particular the effect of humidity, temperature, pollution/contaminants, mechanical and electrical stress, and external pressure need to be assessed in order to assure high reliability of the insulation system.
Cooling is a crucial aspect of electronics design, all the way from high-power industrial applications to personal computers. We investigate and develop ways of creating more efficient and reliable cooling systems, using magnetic nanofluids (ferrofluids).
A self-sustaining and secure energy system is one of the main pillars of future society. The energy system (generation, transmission, demand) will become more decentralised with production taking place closer to customers and involving technologies such as solar panels, fuel cells, micro-turbines, storage and combined heat and power systems.
The conversion of electric power by means of power electronics (converters) is playing an increasingly important role in various parts of the power system. Examples include the integration of renewable power plants, high-voltage direct current (HVDC) transmission and electrification of the oil and gas sector.
Deep-water subsea oil production installations require complex electrical power systems. There is currently a need for local supply systems close to wellheads serving equipment such as gas boosters, oil pumps and separators. In the future we anticipate the development of supply systems for long step-outs where high voltage DC represents a viable solution.
Self-healing electrical insulation materials for high voltage apparatuses are very attractive, especially for new and high-power demand applications when placed in locations which are difficult to access and in harsh environments. Applications include offshore wind farms, subsea grid and equipment located in the Arctic.
Power lines represent approx. half of the new value investment within the power distribution grid. In high voltage distribution grids and master grids, power line failures represent by far the major cause of losses and costs. The challenge for the power distributor is to adopt methods which are able at an early stage to identify potential threats in the form of reduced capacity and lifetimes, and to exploit the opportunities for timely initiatives, investments and knowledge application.
The costs for repair and maintenance of high voltage equipment installed in deep waters can be very high. Therefore, high operating reliability is crucial for the components placed at the seabed. At high hydrostatic pressures, water ingress is the most challenging for the electrical insulations systems and materials used in power supply components. Due to environmental issues the equipment positioned at remote distances from land must be supplied by using subsea power cables. In many cases this calls for developments of new technologies, such as pressure compensated high voltage components.
Switchgear development requires experimental test programs, together with theoretical evaluations. SINTEF has access to NTNU's medium voltage, directly powered switchgear laboratory, and primarily addresses issues related to load current interruption. We combine our experimental research with use of simulation tools within fluid dynamics, electrostatic field theory, black box arc modelling and circuit analysis.
A power transformer is a complex apparatus with windings, core, tap-changer, bushings etc., designed and manufactured for many years of operation in a power system. SINTEF has know-how and runs projects in the transformer technology field; spanning from development and testing of materials for manufacturers, ageing performance, condition monitoring and life estimation, to analysis of interaction between power systems and transformers. A big challenge for the utilities is asset management of ageing transformer fleets.
A transmission system consists of overhead lines and underground cables, combined with power transformers for voltage level conversion. It represents the backbone of any modern electrical power infrastructure and must therefore be designed to withstand disturbances and record very small probabilities of power outages.
DipLab - Mobile short circuit laboratory
This laboratory will be used both in research and development to identify and improve manufacturing unit properties during network failures.
SINTEF Energy Research operates laboratories for high voltage, high power and climatic testing. Customers are manufacturers, suppliers and users of electric power equipment.
FerroCool is an experimental project that will investigate ferrofluid heat transfer. It is an early step towards realizing a novel, efficient and reliable cooling concept that uses magnetic nanofluids.
SAMBA - Smarter Assets Management with Big Data
The project has a large potential for improving the transmission system's asset management by optimizing decisions on maintenance and reinvestments using developments in information and communication technology (ICT) and existing business specific knowledge.
Reliable Power Cable Screen Connections
Several severe and costly service failures have occurred in the last years in the Norwegian distribution network due to local overheating in power cables.
Vector Fitting is a robust numerical method for rational approximation in the frequency domain using poles and residues. It permits to calculate multi-port models directly from measured or computed frequency responses. The resulting approximation has guaranteed stable poles that are real or come in complex conjugate pairs, and the model can be directly converted into a state-space model.
Finnish delegation visits SINTEF Energy Lab
On Monday 13. March, a delegation of Rectors from The Finnish Universities of Applied Sciences and members of Finnish UAS Rectors Conference, together with Academic Trade Union Leaders and representatives from the Ministry of Education and Culture, visited SINTEF Energy Lab.
SINTEF receives UN award for green leadership
After winning first prize in a UN competition, SINTEF will be leading a project to promote solar-powered electric vessels in North Africa and the Middle East.
SINTEF Energy Lab opening
2. September HRH The Crown Prince Haakon Magnus opened our new SINTEF Energy Lab.