Submitted by fromwastetowind on Thu, 27/02/2025 - 15:44 Duration: 00:00:36Tabs 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)254.777 RPMn_cut_in RPM at the nominal wind speed (TSR)500.334 RPMn_nom Nominal tip speed ratio5.23683 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.711642 ai Inner-to-outer magnet radius0.563158 kd Flux density in airgap0.1795 TBmax Flux density on magnet surface0.198264 TBmg First harmonic of flux density in airgap0.178439 TBp Flux per pole (Calculated)0.000485677 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets0.5 mmdist_magnet_Rin Magnet mass5184 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet43200 mm3Vmag Volume of all magnets1036800 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter277.596 mmDout Average radius107.349 mmRavg Inner radius77.3493 mmRin Outer radius138.798 mmRout Effective outer radius137.349 mmRout_eff Mass of rotor disks9.5262 kgrBackIronMass Volume of rotor disks1210.45 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.532085 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness18 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil302 Nc Copper wire diameter0.8 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.5 mm2sc Copper wire cross-sectional area (Calculated)0.456782 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.5 mm²sc_multi_wires Copper wire diameter (Calculated)0.762816 mmdc_theor Coil leg width11.1852 mmwc Average length of coil turn237.488 mmlavg Stator nominal temperature53.6621 C°tc_real Stator surface area478.142 cm²stator_surface_area Heat coefficient0.173803 cq_real Current density3.65426 AJmax_real Resistivity of copper at nominal temperature1.92821E-8 Ohm.mpt Resistance of a single coil2.76587 OhmRc Phase resistance8.29762 OhmRphase Phase inductance0.0244493 HLs Nagaoka constant0.285181 Kn Winding coefficient0.729014 kw Volume of a single coil47814.2 mm3coil_volume Weight of a single coil322.718 gcoil_weight_constr Coil hole at Ravg35 mmcoil_hole_Ravg Coil hole at Rin30 mmcoil_hole_Rin_constr Coil hole at Rout40 mmcoil_hole_Rout_constr Coil mass for construction3.22718 kgrmcu_constr EMF at the cut-in wind speed (Calculated)36.3517 VEMF_cut_in EMF at the nominal wind speed (Calculated)71.2715 VEMF_nom Current at the nominal wind speed1.82713 AIac_nom Terminal voltage at the nominal wind speed51.7477 VV_term_line Nominal frequency50.0334 Hzfnom Generator power (Calculated)283.649 WPnom Copper losses (Calculated)83.1024 WPcopper Eddy current losses (Calculated)0.884683 WPeddy Generator efficiency (Calculated)0.73207 efficiency_real AC Power at the rectifier (Calculated)255.284 WPnom_rect DC Power at the batteries (Calculated)229.756 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)19.8256 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost221.901 EURTotalcost Total generator mass19.9066 kgrTotalMass Total generator volume4.84178 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets82.8287 EURMagcost Magnet shipping cost62.6087 EURshippingcost Copper mass2.88535 kgrmcu Cost of copper42.5878 EURcoppercost Resin mass2.31104 kgrresinmass Cost of resin31.9221 EURresincost Resin volume1699.29 cm3ResinVolume Total mass of one generator rotor7.3551 kgrTotalMassRotor Cost of iron11.7172 EURironcost Surface area of moulds0.333617 m2woodS Total cost of moulds52.8449 EURwoodcost Output files Octave/Matlab variable file: simulation-9702.mat Input parameters Blade Rotor Inputs Turbine radius: 0.90mAerodynamic coefficient: 0.35Cut-in wind speed: 4.00m/sNominal wind speed: 9.00m/sCut-in TSR: 6.00Design TSR: 7.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 12Magnet length: 60mmMagnet width: 40mmMagnet thickness: 18mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: TriangularWinder bolt size: 30.00mmWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 18mmCurrent density: 4.00A/mm2 System Inputs System voltage: 85.00VNominal voltage: 110.00VTransmission 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