Submitted by fromwastetowind on Sat, 24/05/2025 - 18:46 Duration: 00:00:35Tabs 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)69.4249 RPMn_nom Nominal tip speed ratio0.726648 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.497897 ai Inner-to-outer magnet radius0.769365 kd Flux density in airgap0.524274 TBmax Flux density on magnet surface0.666799 TBmg First harmonic of flux density in airgap0.456241 TBp Flux per pole (Calculated)0.000835846 WbFlux_pole Magnets on a rotor disk24 magnet_num Distance between magnets18.6663 mmdist_magnet_Rin Magnet mass5400 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet15000 mm3Vmag Volume of all magnets720000 mm3VolumeMagnet Remanent magnetic flux density1.3 TBr Magnetic coercivity1006580 A/mHc Maximum Energy Product342 KJ/m³BHmax Outer diameter434.306 mmDout Average radius191.793 mmRavg Inner radius166.793 mmRin Outer radius217.153 mmRout Effective outer radius216.793 mmRout_eff Mass of rotor disks23.3177 kgrBackIronMass Volume of rotor disks2962.86 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.03675 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness17 mmtw Number of phases3 nphase Number of coils per phase6 q Total number of coils in stator18 coil_num Number of turns per coil529 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)0.202735 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.508194 mmdc_theor Coil leg width16.5961 mmwc Average length of coil turn202.112 mmlavg Stator nominal temperature40.971 C°tc_real Stator surface area1207.53 cm²stator_surface_area Heat coefficient0.10754 cq_real Current density3.04102 AJmax_real Resistivity of copper at nominal temperature1.82412E-8 Ohm.mpt Resistance of a single coil4.87573 OhmRc Phase resistance29.2544 OhmRphase Phase inductance0.109394 HLs Nagaoka constant0.271142 Kn Winding coefficient0.95 kw Volume of a single coil57022.4 mm3coil_volume Weight of a single coil383.781 gcoil_weight_constr Coil hole at Ravg25 mmcoil_hole_Ravg Coil hole at Rin25 mmcoil_hole_Rin_constr Coil hole at Rout25 mmcoil_hole_Rout_constr Coil mass for construction7.29184 kgrmcu_constr EMF at the cut-in wind speed (Calculated)42.7667 VEMF_cut_in EMF at the nominal wind speed (Calculated)155.399 VEMF_nom Current at the nominal wind speed1.21641 AIac_nom Terminal voltage at the nominal wind speed117.608 VV_term_line Nominal frequency13.885 Hzfnom Generator power (Calculated)429.179 WPnom Copper losses (Calculated)129.859 WPcopper Eddy current losses (Calculated)0.270771 WPeddy Generator efficiency (Calculated)0.760853 efficiency_real AC Power at the rectifier (Calculated)386.261 WPnom_rect DC Power at the batteries (Calculated)347.635 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)4.76781 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost790.154 EURTotalcost Total generator mass39.9405 kgrTotalMass Total generator volume9.77744 dm3TotalVolume Blade rotor mass1.91156 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets514.526 EURMagcost Magnet shipping cost43.4783 EURshippingcost Copper mass6.88204 kgrmcu Cost of copper101.579 EURcoppercost Resin mass4.34074 kgrresinmass Cost of resin59.9583 EURresincost Resin volume3191.72 cm3ResinVolume Total mass of one generator rotor14.3589 kgrTotalMassRotor Cost of iron28.6808 EURironcost Surface area of moulds0.539205 m2woodS Total cost of moulds85.4101 EURwoodcost Output files Octave/Matlab variable file: simulation-9855.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 N42Number of generator poles: 24Magnet length: 50mmMagnet width: 25mmMagnet thickness: 12mmRotor 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