Submitted by fromwastetowind on Fri, 27/06/2025 - 12:50 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)49.1356 RPMn_cut_in RPM at the nominal wind speed (TSR)245.678 RPMn_nom Nominal tip speed ratio6 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness13 mmhr Magnet width-to-pole pitch ratio0.844215 ai Inner-to-outer magnet radius0.743158 kd Flux density in airgap0.657018 TBmax Flux density on magnet surface0.689662 TBmg First harmonic of flux density in airgap0.679554 TBp Flux per pole (Calculated)0.00346077 WbFlux_pole Magnets on a rotor disk36 magnet_num Distance between magnets0.5 mmdist_magnet_Rin Magnet mass54000 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet100000 mm3Vmag Volume of all magnets7200000 mm3VolumeMagnet Remanent magnetic flux density1.195 TBr Magnetic coercivity918880 A/mHc Maximum Energy Product287 KJ/m³BHmax Outer diameter780.291 mmDout Average radius339.344 mmRavg Inner radius289.344 mmRin Outer radius390.145 mmRout Effective outer radius389.344 mmRout_eff Mass of rotor disks97.8478 kgrBackIronMass Volume of rotor disks12433 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.71899 TSaturMAX Is the magnet rotor disk saturated?Yes Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness18 mmtw Number of phases3 nphase Number of coils per phase9 q Total number of coils in stator27 coil_num Number of turns per coil278 Nc Copper wire diameter1.18 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.7 kf Copper wire cross-sectional area1.09 mm2sc Copper wire cross-sectional area (Calculated)1.06598 mm²sc_theor Copper wire cross-sectional area of a sinlge wire1.09 mm²sc_multi_wires Copper wire diameter (Calculated)1.1653 mmdc_theor Coil leg width24.0492 mmwc Average length of coil turn317.538 mmlavg Stator nominal temperature88.2623 C°tc_real Stator surface area4123.73 cm²stator_surface_area Heat coefficient0.318878 cq_real Current density4.8898 AJmax_real Resistivity of copper at nominal temperature2.11691E-8 Ohm.mpt Resistance of a single coil1.71441 OhmRc Phase resistance15.4297 OhmRphase Phase inductance0.0811479 HLs Nagaoka constant0.20827 Kn Winding coefficient0.604386 kw Volume of a single coil137458 mm3coil_volume Weight of a single coil866.398 gcoil_weight_constr Coil hole at Ravg29 mmcoil_hole_Ravg Coil hole at Rin8 mmcoil_hole_Rin_constr Coil hole at Rout50 mmcoil_hole_Rout_constr Coil mass for construction24.2591 kgrmcu_constr EMF at the cut-in wind speed (Calculated)342.133 VEMF_cut_in EMF at the nominal wind speed (Calculated)1710.67 VEMF_nom Current at the nominal wind speed5.32988 AIac_nom Terminal voltage at the nominal wind speed376.347 VV_term_line Nominal frequency73.7034 Hzfnom Generator power (Calculated)25339.4 WPnom Copper losses (Calculated)1314.96 WPcopper Eddy current losses (Calculated)635.687 WPeddy Generator efficiency (Calculated)0.924392 efficiency_real AC Power at the rectifier (Calculated)22805.4 WPnom_rect DC Power at the batteries (Calculated)20524.9 WPnom_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub6 No_bolts_hub Mass of bearing hub14290.7 gBearingHubMass Rotational losses (Calculated)121.904 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost5372.78 EURTotalcost Total generator mass181.518 kgrTotalMass Total generator volume43.0374 dm3TotalVolume Blade rotor mass81.9581 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets4635.75 EURMagcost Magnet shipping cost434.783 EURshippingcost Copper mass23.2257 kgrmcu Cost of copper342.811 EURcoppercost Resin mass6.44418 kgrresinmass Cost of resin89.0128 EURresincost Resin volume4738.37 cm3ResinVolume Total mass of one generator rotor75.9239 kgrTotalMassRotor Cost of iron120.353 EURironcost Surface area of moulds1.16703 m2woodS Total cost of moulds184.857 EURwoodcost Output files Octave/Matlab variable file: simulation-9882.mat Input parameters Blade Rotor Inputs Turbine radius: 3.50mAerodynamic coefficient: 0.35Cut-in wind speed: 3.00m/sNominal wind speed: 15.00m/sCut-in TSR: 6.00Design TSR: 6.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: NdFeB N35Number of generator poles: 36Magnet length: 100mmMagnet width: 50mmMagnet thickness: 20mmRotor disk thickness: User DefinedRotor disk thickness: 13mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: TriangularWinder bolt size: 8.00mmWinding fill factor: User definedWinding fill factor: 0.70Stator thickness: CalculatedCurrent density: 5.00A/mm2 System Inputs System voltage: 800.00VNominal voltage: 800.00VTransmission 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