Submitted by fromwastetowind on Sat, 24/05/2025 - 18:39 Duration: 00:00:47Tabs 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)66.4481 RPMn_nom Nominal tip speed ratio0.69549 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.57713 ai Inner-to-outer magnet radius0.630472 kd Flux density in airgap0.664379 TBmax Flux density on magnet surface0.698056 TBmg First harmonic of flux density in airgap0.603517 TBp Flux per pole (Calculated)0.0022517 WbFlux_pole Magnets on a rotor disk16 magnet_num Distance between magnets13.6005 mmdist_magnet_Rin Magnet mass9984 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet41600 mm3Vmag Volume of all magnets1331200 mm3VolumeMagnet Remanent magnetic flux density1.265 TBr Magnetic coercivity982324 A/mHc Maximum Energy Product326 KJ/m³BHmax Outer diameter434.829 mmDout Average radius176.493 mmRavg Inner radius136.493 mmRin Outer radius217.414 mmRout Effective outer radius216.493 mmRout_eff Mass of rotor disks23.3739 kgrBackIronMass Volume of rotor disks2970 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.60824 TSaturMAX Is the magnet rotor disk saturated?Yes Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness15 mmtw Number of phases3 nphase Number of coils per phase4 q Total number of coils in stator12 coil_num Number of turns per coil442 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)0.211735 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.519351 mmdc_theor Coil leg width15.7156 mmwc Average length of coil turn289.347 mmlavg Stator nominal temperature40.1622 C°tc_real Stator surface area1091.34 cm²stator_surface_area Heat coefficient0.102939 cq_real Current density3.17602 AJmax_real Resistivity of copper at nominal temperature1.81423E-8 Ohm.mpt Resistance of a single coil5.8006 OhmRc Phase resistance23.2024 OhmRphase Phase inductance0.0917791 HLs Nagaoka constant0.210423 Kn Winding coefficient0.95 kw Volume of a single coil68208.7 mm3coil_volume Weight of a single coil459.409 gcoil_weight_constr Coil hole at Ravg40 mmcoil_hole_Ravg Coil hole at Rin40 mmcoil_hole_Rin_constr Coil hole at Rout40 mmcoil_hole_Rout_constr Coil mass for construction5.97231 kgrmcu_constr EMF at the cut-in wind speed (Calculated)42.7667 VEMF_cut_in EMF at the nominal wind speed (Calculated)148.793 VEMF_nom Current at the nominal wind speed1.27041 AIac_nom Terminal voltage at the nominal wind speed117.608 VV_term_line Nominal frequency8.85974 Hzfnom Generator power (Calculated)448.232 WPnom Copper losses (Calculated)112.342 WPcopper Eddy current losses (Calculated)0.188551 WPeddy Generator efficiency (Calculated)0.79201 efficiency_real AC Power at the rectifier (Calculated)403.409 WPnom_rect DC Power at the batteries (Calculated)363.068 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)5.18004 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost1152.32 EURTotalcost Total generator mass43.3772 kgrTotalMass Total generator volume9.801 dm3TotalVolume Blade rotor mass1.91156 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets894.441 EURMagcost Magnet shipping cost80.3865 EURshippingcost Copper mass5.48807 kgrmcu Cost of copper81.0039 EURcoppercost Resin mass4.5312 kgrresinmass Cost of resin62.589 EURresincost Resin volume3331.77 cm3ResinVolume Total mass of one generator rotor16.679 kgrTotalMassRotor Cost of iron28.7499 EURironcost Surface area of moulds0.539973 m2woodS Total cost of moulds85.5318 EURwoodcost Output files Octave/Matlab variable file: simulation-9853.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: 16Magnet length: 80mmMagnet width: 40mmMagnet thickness: 13mmRotor 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