Submitted by fromwastetowind on Sat, 24/05/2025 - 18:33 Duration: 00:01:11Tabs 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)72.4447 RPMn_nom Nominal tip speed ratio0.758254 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.405958 ai Inner-to-outer magnet radius0.516486 kd Flux density in airgap0.781346 TBmax Flux density on magnet surface0.797017 TBmg First harmonic of flux density in airgap0.559584 TBp Flux per pole (Calculated)0.00404129 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets33.8955 mmdist_magnet_Rin Magnet mass13200 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet110000 mm3Vmag Volume of all magnets1760000 mm3VolumeMagnet Remanent magnetic flux density1.265 TBr Magnetic coercivity982324 A/mHc Maximum Energy Product326 KJ/m³BHmax Outer diameter416.649 mmDout Average radius156.819 mmRavg Inner radius106.819 mmRin Outer radius208.325 mmRout Effective outer radius206.819 mmRout_eff Mass of rotor disks21.4603 kgrBackIronMass Volume of rotor disks2726.85 cm3BackIronVolume Maximum flux density in the magnet rotor disk2.34165 TSaturMAX Is the magnet rotor disk saturated?Yes Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness17 mmtw Number of phases3 nphase Number of coils per phase2 q Total number of coils in stator6 coil_num Number of turns per coil985 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)0.194225 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.497414 mmdc_theor Coil leg width30.902 mmwc Average length of coil turn397.032 mmlavg Stator nominal temperature39.3682 C°tc_real Stator surface area1472.29 cm²stator_surface_area Heat coefficient0.0983689 cq_real Current density2.91337 AJmax_real Resistivity of copper at nominal temperature1.81796E-8 Ohm.mpt Resistance of a single coil17.7741 OhmRc Phase resistance35.5481 OhmRphase Phase inductance0.298454 HLs Nagaoka constant0.165872 Kn Winding coefficient0.95 kw Volume of a single coil208574 mm3coil_volume Weight of a single coil1401.33 gcoil_weight_constr Coil hole at Ravg50 mmcoil_hole_Ravg Coil hole at Rin50 mmcoil_hole_Rin_constr Coil hole at Rout50 mmcoil_hole_Rout_constr Coil mass for construction9.80931 kgrmcu_constr EMF at the cut-in wind speed (Calculated)42.7667 VEMF_cut_in EMF at the nominal wind speed (Calculated)162.207 VEMF_nom Current at the nominal wind speed1.16535 AIac_nom Terminal voltage at the nominal wind speed117.608 VV_term_line Nominal frequency4.82965 Hzfnom Generator power (Calculated)411.165 WPnom Copper losses (Calculated)144.827 WPcopper Eddy current losses (Calculated)0.0563371 WPeddy Generator efficiency (Calculated)0.73176 efficiency_real AC Power at the rectifier (Calculated)370.048 WPnom_rect DC Power at the batteries (Calculated)333.043 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)5.83621 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost1477.15 EURTotalcost Total generator mass48.5644 kgrTotalMass Total generator volume11.7254 dm3TotalVolume Blade rotor mass1.91156 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets1169.4 EURMagcost Magnet shipping cost106.28 EURshippingcost Copper mass8.39094 kgrmcu Cost of copper123.85 EURcoppercost Resin mass5.51314 kgrresinmass Cost of resin76.1525 EURresincost Resin volume4053.78 cm3ResinVolume Total mass of one generator rotor17.3301 kgrTotalMassRotor Cost of iron26.3961 EURironcost Surface area of moulds0.513586 m2woodS Total cost of moulds81.352 EURwoodcost Output files Octave/Matlab variable file: simulation-9852.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 N40Number of generator poles: 8Magnet length: 100mmMagnet width: 50mmMagnet thickness: 22mmRotor 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