Submitted by Kostas on Tue, 17/04/2018 - 10:35 Duration: 00:00:49Tabs Results Flux density in airgap plotFlux density on magnet surface plotFlux density in the magnet rotor disk Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)167.197 RPMn_cut_in RPM at the nominal wind speed (TSR)224.034 RPMn_nom Nominal tip speed ratio3.51734 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.593714 ai Inner-to-outer magnet radius0.749783 kd Flux density in airgap0.605903 TBmax Flux density on magnet surface0.712334 TBmg First harmonic of flux density in airgap0.561492 TBp Flux per pole (Calculated)0.000989065 WbFlux_pole Magnets on a rotor disk20 magnet_num Distance between magnets13.3038 mmdist_magnet_Rin Magnet mass6210 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet20700 mm3Vmag Volume of all magnets828000 mm3VolumeMagnet Remanent magnetic flux density1.3 TBr Magnetic coercivity1006580 A/mHc Maximum Energy Product342 KJ/m³BHmax Outer diameter368.902 mmDout Average radius160.84 mmRavg Inner radius137.84 mmRin Outer radius184.451 mmRout Effective outer radius183.84 mmRout_eff Mass of rotor disks16.8235 kgrBackIronMass Volume of rotor disks2137.68 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.3585 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness12 mmtw Number of phases3 nphase Number of coils per phase5 q Total number of coils in stator15 coil_num Number of turns per coil18 Nc Copper wire diameter1.8 mmdc Number of wires at hand2 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area5.08 mm2sc Copper wire cross-sectional area (Calculated)5.05544 mm²sc_theor Copper wire cross-sectional area of a sinlge wire2.54 mm²sc_multi_wires Copper wire diameter (Calculated)2.53772 mmdc_theor Coil leg width13.8545 mmwc Average length of coil turn195.503 mmlavg Stator nominal temperature66.6203 C°tc_real Stator surface area812.583 cm²stator_surface_area Heat coefficient0.232869 cq_real Current density5.97099 AJmax_real Resistivity of copper at nominal temperature1.97927E-8 Ohm.mpt Resistance of a single coil0.013711 OhmRc Phase resistance0.0685548 OhmRphase Phase inductance0.000116059 HLs Nagaoka constant0.224924 Kn Winding coefficient0.95 kw Volume of a single coil32503.3 mm3coil_volume Weight of a single coil177.576 gcoil_weight_constr Coil hole at Ravg30 mmcoil_hole_Ravg Coil hole at Rin30 mmcoil_hole_Rin_constr Coil hole at Rout30 mmcoil_hole_Rout_constr Coil mass for construction2.84122 kgrmcu_constr EMF at the cut-in wind speed (Calculated)10.264 VEMF_cut_in EMF at the nominal wind speed (Calculated)14.0216 VEMF_nom Current at the nominal wind speed30.3326 AIac_nom Terminal voltage at the nominal wind speed11.2904 VV_term_line Nominal frequency37.339 Hzfnom Generator power (Calculated)1027.4 WPnom Copper losses (Calculated)189.225 WPcopper Eddy current losses (Calculated)44.3371 WPeddy Generator efficiency (Calculated)0.805277 efficiency_real AC Power at the rectifier (Calculated)924.663 WPnom_rect DC Power at the batteries (Calculated)832.196 WPnom_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub4 No_bolts_hub Mass of bearing hub3708.65 gBearingHubMass Rotational losses (Calculated)14.873 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost736.806 EURTotalcost Total generator mass27.3347 kgrTotalMass Total generator volume7.69564 dm3TotalVolume Blade rotor mass6.45151 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets583.558 EURMagcost Magnet shipping cost50 EURshippingcost Copper mass2.39728 kgrmcu Cost of copper35.3839 EURcoppercost Resin mass1.90387 kgrresinmass Cost of resin26.298 EURresincost Resin volume1399.9 cm3ResinVolume Total mass of one generator rotor11.5168 kgrTotalMassRotor Cost of iron20.6929 EURironcost Surface area of moulds0.44743 m2woodS Total cost of moulds70.8729 EURwoodcost Output files Octave/Matlab variable file: simulation-549.mat Input parameters Blade Rotor Inputs Turbine radius: 1.50mAerodynamic coefficient: 0.30Cut-in wind speed: 3.00m/sNominal wind speed: 10.00m/sCut-in TSR: 8.75Design TSR: 7.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: NdFeB N42Number of generator poles: 20Magnet length: 46mmMagnet width: 30mmMagnet thickness: 15mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 5.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: CalculatedStator thickness: User definedStator thickness: 12mmCurrent density: 6.00A/mm2 System Inputs System voltage: 24.00VNominal voltage: 24.00VTransmission cable losses: 10.00%Rectifier losses: 10.00% Financial Copper price: 12.00€/kgIron price: 1.00€/kgResin price: 11.23€/kgPlywood price: 17.60 €/m² Simulation Inputs Also run UserAFPM: false Constants Copper resistivity: 1.678E-8 Ω·mCopper density: 8.94g/cm³Iron density: 7.87g/cm³Resin density: 1.36g/cm³
