A Permanent Magnet Generator for Energy Conversion from Marine Currents: No Load and Load Experiments
2012 (English)In: ISNR Renewable Energy, ISSN 2090-7451, Vol. 2012, 489379- p.Article in journal (Refereed) Published
This paper presents experiments and measurements on a low speed permanent magnet cable wound generator for marine currentenergy conversion.Measurements were made for no load and nominal load (4.44Ω/phase) conditions at nominal speed (10 rpm).For either load condition, the magnetic fields in the air gap were also measured. The measurements on the generator werecompared with the corresponding finite element method simulations used to design the machine. It is shown in the paper thatmeasurements and corresponding case simulations show good agreement. At nominal speed, the measured and simulated loadvoltages (nominal load) differ less than 1% for the rms values and less than 5% for peak values. At no load, measured and simulatedvoltages had larger differences, that is, <9% for rms values and <5% for peak values. Harmonic analyses of measured and simulatedphase voltages and currents show only the presence of third harmonics. The percentage of harmonics in the measured data wascomparable with the corresponding predictions of the simulations. The discussions and results presented in the paper could bebeneficial for future design of efficient and reliable marine current energy converter systems.
Place, publisher, year, edition, pages
2012. Vol. 2012, 489379- p.
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Engineering Science with specialization in Science of Electricity
IdentifiersURN: urn:nbn:se:uu:diva-176990DOI: 10.5402/2012/489379OAI: oai:DiVA.org:uu-176990DiVA: diva2:538477