Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of...
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![Page 1: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/1.jpg)
Rotating and Linear Synchronous Generators for Renewable Electric
Energy Conversion - an Update of the Ongoing Research Projects at Uppsala
University
Presenter: Björn Bolund
Author: whole group
![Page 2: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/2.jpg)
![Page 3: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/3.jpg)
![Page 4: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/4.jpg)
Research Areas
A. Water Current EnergyB. Bio-fuelled plantsC. Wave EnergyD. Wind EnergyE. Hydro Power
F. Pulsed power
?
![Page 5: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/5.jpg)
Water current energy
Velocities ~ 1 m/s
At high velocities
Only on a few places
Power-rating ~ 10 kW and upp
Permanent magnets
![Page 6: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/6.jpg)
Bio-fuelled plants
Process
Turbogenerator
Drawbacks:
Cooling is expensive
Our approach:
High voltage
136 kV / 42 MW
![Page 7: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/7.jpg)
Why high voltage?
Poynting’s theoremThe rate at which electromagnetic energy isdissipated into heat per unit volume
tJ
t
f
f
DH
B
BE
D
0
EJ fw V fVloss dwdW EJ
V V fS
ddt
d
EJBE
εaHE22
22
HES Poynting vector
Trad XLPEE(kV/mm) 2.5 - 3 3 - 15A/mm 4 – 4.5 1.5 – 3P/mm 10-13.5 4.5 - 45
2
3
![Page 8: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/8.jpg)
Buoy
Rope
Linear generator
Wave energy – The linear generator
![Page 9: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/9.jpg)
Rotor
Stator
Current
Neodymium-Iron-Boron magnets Threephse winding, standardcable
![Page 10: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/10.jpg)
Wind energy
GeneratorIncrease overload capabillity
![Page 11: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/11.jpg)
Hydropower
-elliptic rotor- Eccentric rotor
![Page 12: Rotating and Linear Synchronous Generators for Renewable Electric Energy Conversion - an Update of the Ongoing Research Projects at Uppsala University.](https://reader035.fdocuments.in/reader035/viewer/2022070403/56649f325503460f94c4d6af/html5/thumbnails/12.jpg)
Pulsed power
High power pulses: 100MW – 10TW during a few microseconds
80 KV5.5 kA0.5 GW2.5 micro seconds