Submitted by fromwastetowind on Sat, 24/05/2025 - 18:50 Duration: 00:00:43Tabs 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)19.1083 RPMn_cut_in RPM at the nominal wind speed (TSR)73.4989 RPMn_nom Nominal tip speed ratio0.769288 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.466882 ai Inner-to-outer magnet radius0.734927 kd Flux density in airgap0.311189 TBmax Flux density on magnet surface0.614738 TBmg First harmonic of flux density in airgap0.284286 TBp Flux per pole (Calculated)0.000616168 WbFlux_pole Magnets on a rotor disk24 magnet_num Distance between magnets16.2925 mmdist_magnet_Rin Magnet mass7200 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet20000 mm3Vmag Volume of all magnets960000 mm3VolumeMagnet Remanent magnetic flux density1.195 TBr Magnetic coercivity918880 A/mHc Maximum Energy Product287 KJ/m³BHmax Outer diameter377.784 mmDout Average radius163.627 mmRavg Inner radius138.627 mmRin Outer radius188.892 mmRout Effective outer radius188.627 mmRout_eff Mass of rotor disks17.6434 kgrBackIronMass Volume of rotor disks2241.85 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.946876 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness27 mmtw Number of phases3 nphase Number of coils per phase6 q Total number of coils in stator18 coil_num Number of turns per coil718 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)0.191391 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.493771 mmdc_theor Coil leg width14.1827 mmwc Average length of coil turn184.534 mmlavg Stator nominal temperature50.7694 C°tc_real Stator surface area942.188 cm²stator_surface_area Heat coefficient0.159559 cq_real Current density2.87086 AJmax_real Resistivity of copper at nominal temperature1.91206E-8 Ohm.mpt Resistance of a single coil6.33348 OhmRc Phase resistance38.0009 OhmRphase Phase inductance0.151514 HLs Nagaoka constant0.388387 Kn Winding coefficient0.95 kw Volume of a single coil70664.1 mm3coil_volume Weight of a single coil475.123 gcoil_weight_constr Coil hole at Ravg20 mmcoil_hole_Ravg Coil hole at Rin20 mmcoil_hole_Rin_constr Coil hole at Rout20 mmcoil_hole_Rout_constr Coil mass for construction9.02733 kgrmcu_constr EMF at the cut-in wind speed (Calculated)42.7667 VEMF_cut_in EMF at the nominal wind speed (Calculated)164.609 VEMF_nom Current at the nominal wind speed1.14834 AIac_nom Terminal voltage at the nominal wind speed117.608 VV_term_line Nominal frequency14.6998 Hzfnom Generator power (Calculated)405.165 WPnom Copper losses (Calculated)150.335 WPcopper Eddy current losses (Calculated)0.135975 WPeddy Generator efficiency (Calculated)0.723362 efficiency_real AC Power at the rectifier (Calculated)364.648 WPnom_rect DC Power at the batteries (Calculated)328.184 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)4.47808 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost934.381 EURTotalcost Total generator mass39.2142 kgrTotalMass Total generator volume10.3125 dm3TotalVolume Blade rotor mass1.91156 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets633.333 EURMagcost Magnet shipping cost57.971 EURshippingcost Copper mass8.52845 kgrmcu Cost of copper125.88 EURcoppercost Resin mass5.84234 kgrresinmass Cost of resin80.6997 EURresincost Resin volume4295.84 cm3ResinVolume Total mass of one generator rotor12.4217 kgrTotalMassRotor Cost of iron21.7013 EURironcost Surface area of moulds0.459391 m2woodS Total cost of moulds72.7675 EURwoodcost Output files Octave/Matlab variable file: simulation-9856.mat Input parameters Blade Rotor Inputs Turbine radius: 1.00mAerodynamic coefficient: 0.30Cut-in wind speed: 2.00m/sNominal wind speed: 10.00m/sCut-in TSR: 1.00Design TSR: 2.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: NdFeB N35Number of generator poles: 24Magnet length: 50mmMagnet width: 20mmMagnet thickness: 20mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 2.50mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: CalculatedCurrent density: 6.00A/mm2 System Inputs System voltage: 100.00VNominal voltage: 250.00VTransmission 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