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Goude, Anders
Publications (10 of 32) Show all publications
Rossander, M., Goude, A. & Eriksson, S. (2017). Mechanical torque ripple from a passive diode rectifier in a 12 kW vertical axis wind turbine. IEEE transactions on energy conversion, 32(1), 164-171.
Open this publication in new window or tab >>Mechanical torque ripple from a passive diode rectifier in a 12 kW vertical axis wind turbine
2017 (English)In: IEEE transactions on energy conversion, ISSN 0885-8969, E-ISSN 1558-0059, Vol. 32, no 1, 164-171 p.Article in journal (Refereed) Published
Abstract [en]

The influence of passive rectification on the mechanical torque of a permanent magnet generator for a directly driven vertical axis wind turbine has been studied. Passive diode rectification introduce electromagnetic torque ripple from the generator. The conversion of electromagnetic torque ripple into mechanical torque ripple and rotational speed ripple has been modeled, analytically evaluated, and simulated. The simulations have been compared to measurements on an open site 12 kW prototype. A parameter study with the model illustrates the impact of shaft torsional spring constant, generator rotor inertia, generator inductance, and dc-link capacitance. The results show that the shaft and generator rotor can be an effective filter of electromagnetic torque ripple from diode rectification. The measured mechanical torque ripple amplitude on the prototype is less than +/- 0.9% of nominal turbine torque. The measurements compare well with the simulations.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-272363 (URN)10.1109/TEC.2016.2626783 (DOI)000396130300016 ()
Available from: 2016-01-13 Created: 2016-01-13 Last updated: 2017-10-18Bibliographically approved
Lundin, S., Forslund, J., Goude, A., Grabbe, M., Yuen, K. & Leijon, M. (2016). Experimental demonstration of performance of a vertical axis marine current turbine in a river. Journal of Renewable and Sustainable Energy, 8(6), Article ID 064501.
Open this publication in new window or tab >>Experimental demonstration of performance of a vertical axis marine current turbine in a river
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2016 (English)In: Journal of Renewable and Sustainable Energy, ISSN 1941-7012, E-ISSN 1941-7012, Vol. 8, no 6, 064501Article in journal (Refereed) Published
Abstract [en]

An experimental station for marine current power has been installed in a river. The station comprises a vertical axis turbine with a direct-driven permanent magnet synchronous generator. In measurements of steady-state operation in varying flow conditions, performance comparable to that of turbines designed for significantly higher flow speeds is achieved, demonstrating the viability of electricity generation in low speed (below 1.5 m/s) marine currents.

Keyword
Ocean currents, electric currents, rivers, hydrodynamics, torque
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Ocean and River Engineering
Research subject
Engineering Science with specialization in Science of Electricity
Identifiers
urn:nbn:se:uu:diva-280762 (URN)10.1063/1.4971817 (DOI)000390115300019 ()
Projects
Marin strömkraft
Funder
Vattenfall ABÅForsk (Ångpanneföreningen's Foundation for Research and Development)StandUp
Note

Övriga finansiärer: J. Gust. Richert Memorial Fund och Bixia Environmental Fund.

Available from: 2016-03-15 Created: 2016-03-15 Last updated: 2017-11-30Bibliographically approved
Lundin, S., Goude, A. & Leijon, M. (2016). One-Dimensional Modelling of Marine Current Turbine Runaway Behaviour. Energies, 9(5), Article ID 309.
Open this publication in new window or tab >>One-Dimensional Modelling of Marine Current Turbine Runaway Behaviour
2016 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 9, no 5, 309Article in journal (Refereed) Published
Abstract [en]

If a turbine loses its electrical load, it will rotate freely and increase speed, eventually achieving that rotational speed which produces zero net torque. This is known as a runaway situation. Unlike many other types of turbine, a marine current turbine will typically overshoot the final runaway speed before slowing down and settling at the runaway speed. Since the hydrodynamic forces acting on the turbine are dependent on rotational speed and acceleration, turbine behaviour during runaway becomes important for load analyses during turbine design. In this article, we consider analytical and numerical models of marine current turbine runaway behaviour in one dimension. The analytical model is found not to capture the overshoot phenomenon, while still providing useful estimates of acceleration at the onset of runaway. The numerical model incorporates turbine wake build-up and predicts a rotational speed overshoot. The predictions of the models are compared against measurements of runaway of a marine current turbine. The models are also used to recreate previously-published results for a tidal turbine and applied to a wind turbine. It is found that both models provide reasonable estimates of maximum accelerations. The numerical model is found to capture the speed overshoot well.

Keyword
marine current turbines; tidal turbines; runaway speed
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-280761 (URN)10.3390/en9050309 (DOI)000377263400001 ()
Funder
Vattenfall ABSwedish Research CouncilÅForsk (Ångpanneföreningen's Foundation for Research and Development)StandUpSwedish Energy Agency
Available from: 2016-03-15 Created: 2016-03-15 Last updated: 2017-11-30Bibliographically approved
Möllerström, E., Ottermo, F., Goude, A., Eriksson, S. S., Hylander, J. & Bernhoff, H. (2016). Turbulence influence on wind energy extraction for a medium size vertical axis wind turbine. Wind Energy, 19(11), 1963-1973.
Open this publication in new window or tab >>Turbulence influence on wind energy extraction for a medium size vertical axis wind turbine
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2016 (English)In: Wind Energy, ISSN 1095-4244, E-ISSN 1099-1824, Vol. 19, no 11, 1963-1973 p.Article in journal (Refereed) Published
Abstract [en]

The relation between power performance and turbulence intensity for a VAWT H-rotor is studied using logged data from a 14 month (discontinuous) period with the H-rotor operating in wind speeds up to 9 m/s. The turbine, designed originally fora nominal power of 200 kW, operated during this period mostly in a restricted mode due to mechanical concerns, reachingpower levels up to about 80 kW. Two different approaches are used for presenting results, one that can be compared topower curves consistent with the International Electrotechnical Commission (IEC) standard and one that allows isolatingthe effect of turbulence from the cubic variation of power with wind speed. Accounting for this effect, the turbine stillshows slightly higher efficiency at higher turbulence, proposing that the H-rotor is well suited for wind sites with turbulentwinds. The operational data are also used to create a Cp(λ) curve, showing slightly lower Cp compared with a curvesimulated by a double multiple streamtube model.

Keyword
VAWT; H-rotor; turbulence intensity; power coefficient curve
National Category
Energy Engineering
Identifiers
urn:nbn:se:uu:diva-277352 (URN)10.1002/we.1962 (DOI)000386149700001 ()
Funder
StandUpStandUp for Wind
Available from: 2016-02-19 Created: 2016-02-19 Last updated: 2017-11-28
Mendoza, V. & Goude, A. (2016). Validation of an Actuator Line Model Coupled to a Dynamic Stall Model for Pitching Motions Characteristic to Vertical Axis Turbines. In: : . Paper presented at STandUP for ENERGY conference - May, 26th Uppsala - Sweden. .
Open this publication in new window or tab >>Validation of an Actuator Line Model Coupled to a Dynamic Stall Model for Pitching Motions Characteristic to Vertical Axis Turbines
2016 (English)Conference paper, Poster (with or without abstract) (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:uu:diva-301327 (URN)
External cooperation:
Conference
STandUP for ENERGY conference - May, 26th Uppsala - Sweden
Available from: 2016-08-19 Created: 2016-08-19 Last updated: 2016-08-30Bibliographically approved
Aihara, A., Uzunoglu, B. & Goude, A. (2016). Wind Flow Resource Analysis Of Urban Structures: A Validation Study. In: : . Paper presented at 12th EAWE PhD Seminar on Wind Energy in Europe. 25-27 May 2016 DTU Lyngby, Denmark. .
Open this publication in new window or tab >>Wind Flow Resource Analysis Of Urban Structures: A Validation Study
2016 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

In order to have better insight into the physics of the urban wind turbines, a Computational Fluid Dynamics (CFD) flow solver has been developed for industrial applications by Uppsala University and SOLUTE Ingenieros. Urban wind resource assessment for small scale wind applications present several challenges and complexities for that are different from large-scale wind power generation. Urban boundary layer relevant in this regime of flows have different horizontal profiles impacted by the buildings, low speed wind regimes, separation and different turbulence characteristics. Preliminary measurement results will be presented for a particular site in Huesca Spain where a measurement campaign is undertaken to validate the CFD results.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-310709 (URN)
Conference
12th EAWE PhD Seminar on Wind Energy in Europe. 25-27 May 2016 DTU Lyngby, Denmark
Projects
WINDUR
Available from: 2016-12-19 Created: 2016-12-19 Last updated: 2016-12-19Bibliographically approved
Goude, A., Uzunoglu, B., Giovannini, G., Magdalena, J. & Fernandez, A. (2015). A GUI for urban wind flow CFD analysis of small scale wind applications. In: Cyberworlds, 2015 IEEE: . Paper presented at Cyberworlds, 2015 IEEE (pp. 193-199). .
Open this publication in new window or tab >>A GUI for urban wind flow CFD analysis of small scale wind applications
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2015 (English)In: Cyberworlds, 2015 IEEE, 2015, 193-199 p.Conference paper, Published paper (Refereed)
Abstract [en]

In order to have better insight into the physics of the urban wind turbines, a graphical user interface (GUI) that employs OpenFOAM flow solver has been developed for industrial applications by Uppsala University with Spanish engineering company SOLUTE via EU framework as part of the WINDUR framework 7 project. Urban wind resource assessment for small scale wind applications present several challenges and complexities for that are different from large-scale wind power generation. Urban boundary layer relevant in this regime of flows have different horizontal profiles impacted by the buildings, low speed wind regimes, separation and different turbulence characteristics. This software addresses the project setup and scientific visualization of the results for right investment decision needs. Preliminary numerical results will be presented for a test site in Huesca, Spain where a measurement campaign is undertaken to validate the Computational Fluid Dynamics (CFD) results.

Keyword
Urban flow, Small scale wind, Graphical User Interface (GUI), Computational Fluid Dynamics (CFD), Boundary Layer, Buildings, OpenFOAM, Reynolds Averaged Navier Stokes Equation (RANS)
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-268976 (URN)10.1109/CW.2015.71 (DOI)000380483300032 ()9781467394031 (ISBN)
Conference
Cyberworlds, 2015 IEEE
Funder
StandUpStandUp for Wind
Available from: 2016-02-02 Created: 2015-12-11 Last updated: 2017-11-28
Olauson, J., Ayob, N., Bergkvist, M., Carpman, N., Castellucci, V., Goude, A., . . . Widén, J. (2015). A highly/fully renewable Nordic power system: Which type of variability would hydropower need to deal with?. Stockholm.
Open this publication in new window or tab >>A highly/fully renewable Nordic power system: Which type of variability would hydropower need to deal with?
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2015 (English)Other (Other academic)
Place, publisher, year, pages
Stockholm: , 2015
Keyword
Renewable energy, Variability
National Category
Engineering and Technology
Identifiers
urn:nbn:se:uu:diva-286392 (URN)
Note

Poster at STandUP for Energy, Stockholm 2015-11-26

Available from: 2016-04-20 Created: 2016-04-20 Last updated: 2017-01-25
Rossander, M., Dyachuk, E., Apelfröjd, S., Trolin, K., Goude, A., Bernhoff, H. & Eriksson, S. (2015). Evaluation of a Blade Force Measurement System for a Vertical Axis Wind Turbine Using Load Cells. Energies, 8(6), 5973-5996.
Open this publication in new window or tab >>Evaluation of a Blade Force Measurement System for a Vertical Axis Wind Turbine Using Load Cells
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2015 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 8, no 6, 5973-5996 p.Article in journal (Refereed) Published
Abstract [en]

Unique blade force measurements on an open site straight-bladed vertical axis wind turbine have been performed. This paper presents a method for measuring the tangential and normal forces on a 12-kW vertical axis wind turbine prototype with a three-bladed H-rotor. Four single-axis load cells were installed in-between the hub and the support arms on one of the blades. The experimental setup, the measurement principle, together with the necessary control and measurement system are described. The maximum errors of the forces and accompanying weather data that can be obtained with the system are carefully estimated. Measured forces from the four load cells are presented, as well as the normal and tangential forces derived from them and a comparison with theoretical data. The measured torque and bending moment are also provided. The influence of the load cells on the turbine dynamics has also been evaluated. For the aerodynamic normal force, the system provides periodic data in agreement with simulations. Unexpected mechanical oscillations are present in the tangential force, introduced by the turbine dynamics. The measurement errors are of an acceptable size and often depend on the measured variable. Equations are presented for the calculation of measurement errors.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-260148 (URN)10.3390/en8065973 (DOI)000357489700067 ()
Funder
StandUpStandUp for Wind
Available from: 2015-08-17 Created: 2015-08-17 Last updated: 2017-12-04
Dyachuk, E., Rossander, M., Goude, A. & Bernhoff, H. (2015). Measurements of the Aerodynamic Normal Forces on a 12-kW Straight-Bladed Vertical Axis Wind Turbine. Energies, 8(8).
Open this publication in new window or tab >>Measurements of the Aerodynamic Normal Forces on a 12-kW Straight-Bladed Vertical Axis Wind Turbine
2015 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 8, no 8Article in journal (Refereed) Published
Abstract [en]

The knowledge of unsteady forces is necessary when designing vertical axis wind turbines (VAWTs). Measurement data for turbines operating at an open site are still very limited. The data obtained from wind tunnels or towing tanks can be used, but have limited applicability when designing large-scale VAWTs. This study presents experimental data on the normal forces of a 12-kW straight-bladed VAWT operated at an open site north of Uppsala, Sweden. The normal forces are measured with four single-axis load cells. The data are obtained for a wide range of tip speed ratios: from 1.7 to 4.6. The behavior of the normal forces is analyzed. The presented data can be used in validations of aerodynamic models and the mechanical design for VAWTs.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-260569 (URN)10.3390/en8088482 (DOI)000360586600052 ()
Available from: 2015-08-20 Created: 2015-08-20 Last updated: 2017-12-04Bibliographically approved
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