Submitted by fromwastetowind on Fri, 11/10/2024 - 17:26 Duration: 00:00:52Tabs 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)159.236 RPMn_cut_in RPM at the nominal wind speed (TSR)363.517 RPMn_nom Nominal tip speed ratio3.80481 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.691824 ai Inner-to-outer magnet radius0.572725 kd Flux density in airgap0.209118 TBmax Flux density on magnet surface0.211549 TBmg First harmonic of flux density in airgap0.210788 TBp Flux per pole (Calculated)0.000795933 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets3.1654 mmdist_magnet_Rin Magnet mass5760 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet72000 mm3Vmag Volume of all magnets1152000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter287.187 mmDout Average radius110.425 mmRavg Inner radius80.4246 mmRin Outer radius143.593 mmRout Effective outer radius140.425 mmRout_eff Mass of rotor disks10.1959 kgrBackIronMass Volume of rotor disks1295.53 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.760221 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 phase2 q Total number of coils in stator6 coil_num Number of turns per coil408 Nc Copper wire diameter0.71 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.4 mm2sc Copper wire cross-sectional area (Calculated)0.326863 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.64528 mmdc_theor Coil leg width12.0889 mmwc Average length of coil turn277.959 mmlavg Stator nominal temperature96.6596 C°tc_real Stator surface area403.226 cm²stator_surface_area Heat coefficient0.349142 cq_real Current density4.90295 AJmax_real Resistivity of copper at nominal temperature2.15171E-8 Ohm.mpt Resistance of a single coil6.10049 OhmRc Phase resistance12.201 OhmRphase Phase inductance0.0369876 HLs Nagaoka constant0.258831 Kn Winding coefficient0.95 kw Volume of a single coil60483.9 mm3coil_volume Weight of a single coil407.533 gcoil_weight_constr Coil hole at Ravg60 mmcoil_hole_Ravg Coil hole at Rin60 mmcoil_hole_Rin_constr Coil hole at Rout60 mmcoil_hole_Rout_constr Coil mass for construction2.85273 kgrmcu_constr EMF at the cut-in wind speed (Calculated)29.0813 VEMF_cut_in EMF at the nominal wind speed (Calculated)66.4 VEMF_nom Current at the nominal wind speed1.96118 AIac_nom Terminal voltage at the nominal wind speed39.5164 VV_term_line Nominal frequency24.2345 Hzfnom Generator power (Calculated)232.496 WPnom Copper losses (Calculated)140.783 WPcopper Eddy current losses (Calculated)0.119699 WPeddy Generator efficiency (Calculated)0.598124 efficiency_real AC Power at the rectifier (Calculated)209.247 WPnom_rect DC Power at the batteries (Calculated)188.322 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)15.3099 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost225.619 EURTotalcost Total generator mass20.9154 kgrTotalMass Total generator volume5.44125 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets87.6532 EURMagcost Magnet shipping cost69.5652 EURshippingcost Copper mass2.43327 kgrmcu Cost of copper35.915 EURcoppercost Resin mass2.52631 kgrresinmass Cost of resin34.8957 EURresincost Resin volume1857.58 cm3ResinVolume Total mass of one generator rotor7.97793 kgrTotalMassRotor Cost of iron12.5409 EURironcost Surface area of moulds0.344788 m2woodS Total cost of moulds54.6145 EURwoodcost Output files Octave/Matlab variable file: simulation-9533.mat Input parameters Blade Rotor Inputs Turbine radius: 0.90mAerodynamic coefficient: 0.35Cut-in wind speed: 3.00m/sNominal wind speed: 9.00m/sCut-in TSR: 5.00Design TSR: 6.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 8Magnet length: 60mmMagnet width: 60mmMagnet thickness: 20mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 18mmCurrent density: 6.00A/mm2 System Inputs System voltage: 68.00VNominal voltage: 84.00VTransmission 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