Power Electronics
The Power Electronics Team at SINTEF has succeeded in combining theoretical understanding of power semiconductors with knowledge of the operating principles of power electronic converters. The Team has considerable experience from research, development and analysis project for Norwegian and European Industry.
A power electronic converter is machine for converting electric energy (current, voltage, frequency), by applying one or more power semiconductors, magnetic components, capacitors, control electronics, and other essential supplementary components.
Specialists on design and application of power electronics
Supporting power electronics industry with development of new products
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All from assistance with basic studies to development of prototypes ready for production
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Power supplies and converters employing switching power transistors (IGBT, MOSFET, etc)
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Converters in the power range 100 W to 5 MW
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Assisting industry and utilities with problems related to application of power electronics
Evaluation and recommendations of installations containing converters
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Evaluation of new converter applications in power systems
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Operating problems involving converters and motors
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Development of application specific converters
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Expertise:
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Products and services:
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- Power Semiconductors
- Converter Circuit Topologies
- Cable Modelling
- Magnetic Components
- Motor Drives
- Simulation
- Control Electronics
- Subsea Power Electronics
- Subsea Power Systems
- Energy Storage
- EMC
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- Analysis & Verifications
- Power Electronics Components
- Converter Topologies
- Converters in power systems
- Converter related EMC
- Cable transient analysis
- Prototypes
- Design support
- Complete units
- Special products
- Subsea Equipment
- Electric Propulsion
- Laboratory testing
- Accommodated laboratories
- Efficient instruments
- External measurements services
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| Some accomplished, ongoing and upcoming Projects: |
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Competence on power semiconductor switching devises
- Understanding physics of most types of modern switching devices like IGBTs, MOSFETs and bipolar transistors
- Limitations and possibilities regarding power, high frequency characteristics, short circuit protections etc.
- Characteristics of semiconductor modules
- Optimal selection of components for various applications
Converter Circuit Topologies
- Detailed understanding of most types of converter topologies
- Power electronic circuit analysis by numerical simulations (E.g. PSCAD, MATLAB)
- Snubbers and other protecting circuits
- Optimising and adaptation of driver circuits
- Control of distortion and harmonics
- Optimal selection of topologies for various applications
Design nof prototypes
- Power components and power circuits
- Magnetic components for high frequency converters
- Cooling and packaging
- EMC design considerations
Control electronics
- Control schemes for current and voltage control of converters
- Optimization of control loops
- Optimization of electronics for state monitoring and self-protection
- Digital control with dedicated microelectronics
Special converter for hyperbaric welding (developed by SINTEF for industry clients)
- Down to 400 m seabed
- Heatsinks for power semiconductors prepared for seawater cooling
- Cooling tubes of steel, moulded into aluminium heatsink
- Reliable operation in 15 years
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Converters in power systems
- Analysis of power systems with integrated converters
- HVDC and FACTS-components
- VSDs and other converter loads
- Power quality issues - UPS, PLC, active filters etc.
- New technologies for maritime power distribution
- New technologies for subsea applications
Compact converter for motor drive (developed by SINTEF for Volvo / ABB)
- 100 kW
- 17 kg
- 17,7 litre
- Liquid cooled
External measurement services
- Power quality and EMC
- Operating problems in power grids with converter loads
- Power electronics trouble shooting
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