Submitted by morganmccaughey on Tue, 27/04/2021 - 16:00 Duration: 00:01:25Tabs 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)208.997 RPMn_cut_in RPM at the nominal wind speed (TSR)1387.43 RPMn_nom Nominal tip speed ratio17.4261 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.0746363 ai Inner-to-outer magnet radius0.889253 kd Flux density in airgap0.238519 TBmax Flux density on magnet surface0.553661 TBmg First harmonic of flux density in airgap0.0597586 TBp Flux per pole (Calculated)0.000109751 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets116.129 mmdist_magnet_Rin Magnet mass120 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet1000 mm3Vmag Volume of all magnets16000 mm3VolumeMagnet Remanent magnetic flux density1.3 TBr Magnetic coercivity1006580 A/mHc Maximum Energy Product342 KJ/m³BHmax Outer diameter361.323 mmDout Average radius170.592 mmRavg Inner radius160.592 mmRin Outer radius180.662 mmRout Effective outer radius180.592 mmRout_eff Mass of rotor disks16.1394 kgrBackIronMass Volume of rotor disks2050.74 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.315122 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness13 mmtw Number of phases3 nphase Number of coils per phase2 q Total number of coils in stator6 coil_num Number of turns per coil796 Nc Copper wire diameter0.95 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area0.71 mm2sc Copper wire cross-sectional area (Calculated)0.665423 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.71 mm²sc_multi_wires Copper wire diameter (Calculated)0.920691 mmdc_theor Coil leg width79.0434 mmwc Average length of coil turn308.196 mmlavg Stator nominal temperature63.6627 C°tc_real Stator surface area2923.3 cm²stator_surface_area Heat coefficient0.21999 cq_real Current density5.62329 AJmax_real Resistivity of copper at nominal temperature1.94602E-8 Ohm.mpt Resistance of a single coil6.72401 OhmRc Phase resistance13.448 OhmRphase Phase inductance0.0924158 HLs Nagaoka constant0.0998112 Kn Winding coefficient0.95 kw Volume of a single coil316691 mm3coil_volume Weight of a single coil1561.08 gcoil_weight_constr Coil hole at Ravg10 mmcoil_hole_Ravg Coil hole at Rin10 mmcoil_hole_Rin_constr Coil hole at Rout10 mmcoil_hole_Rout_constr Coil mass for construction10.9276 kgrmcu_constr EMF at the cut-in wind speed (Calculated)10.264 VEMF_cut_in EMF at the nominal wind speed (Calculated)68.1773 VEMF_nom Current at the nominal wind speed3.99254 AIac_nom Terminal voltage at the nominal wind speed11.2904 VV_term_line Nominal frequency92.4954 Hzfnom Generator power (Calculated)135.232 WPnom Copper losses (Calculated)643.098 WPcopper Eddy current losses (Calculated)0.417642 WPeddy Generator efficiency (Calculated)0.160356 efficiency_real AC Power at the rectifier (Calculated)121.709 WPnom_rect DC Power at the batteries (Calculated)109.538 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)64.5743 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost283.741 EURTotalcost Total generator mass28.3007 kgrTotalMass Total generator volume5.02432 dm3TotalVolume Blade rotor mass3.30317 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets19.4382 EURMagcost Magnet shipping cost0.966184 EURshippingcost Copper mass9.34302 kgrmcu Cost of copper137.903 EURcoppercost Resin mass2.69835 kgrresinmass Cost of resin37.272 EURresincost Resin volume1984.08 cm3ResinVolume Total mass of one generator rotor8.12968 kgrTotalMassRotor Cost of iron19.8514 EURironcost Surface area of moulds0.437348 m2woodS Total cost of moulds69.276 EURwoodcost Output files Octave/Matlab variable file: simulation-7084.mat Input parameters Blade Rotor Inputs Turbine radius: 1.20mAerodynamic 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: 8Magnet length: 20mmMagnet width: 10mmMagnet thickness: 5mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.55Stator thickness: User definedStator thickness: 13mmCurrent 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
