Submitted by fromwastetowind on Thu, 27/02/2025 - 14:45 Duration: 00:00:31Tabs 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)159.236 RPMn_cut_in RPM at the nominal wind speed (TSR)422.179 RPMn_nom Nominal tip speed ratio4.4188 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.320727 ai Inner-to-outer magnet radius0.597573 kd Flux density in airgap0.150804 TBmax Flux density on magnet surface0.202084 TBmg First harmonic of flux density in airgap0.110769 TBp Flux per pole (Calculated)0.000243469 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets26.6503 mmdist_magnet_Rin Magnet mass2592 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet21600 mm3Vmag Volume of all magnets518400 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter298.861 mmDout Average radius119.096 mmRavg Inner radius89.0955 mmRin Outer radius149.431 mmRout Effective outer radius149.096 mmRout_eff Mass of rotor disks11.0416 kgrBackIronMass Volume of rotor disks1403 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.287513 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness15 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil593 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)0.337623 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.655815 mmdc_theor Coil leg width21.0844 mmwc Average length of coil turn226.205 mmlavg Stator nominal temperature58.0564 C°tc_real Stator surface area858.494 cm²stator_surface_area Heat coefficient0.19464 cq_real Current density4.22029 AJmax_real Resistivity of copper at nominal temperature1.94279E-8 Ohm.mpt Resistance of a single coil6.51512 OhmRc Phase resistance19.5454 OhmRphase Phase inductance0.0794722 HLs Nagaoka constant0.220836 Kn Winding coefficient0.95 kw Volume of a single coil71541.2 mm3coil_volume Weight of a single coil481.301 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 construction4.81301 kgrmcu_constr EMF at the cut-in wind speed (Calculated)29.0813 VEMF_cut_in EMF at the nominal wind speed (Calculated)77.1407 VEMF_nom Current at the nominal wind speed1.68811 AIac_nom Terminal voltage at the nominal wind speed39.5164 VV_term_line Nominal frequency42.2179 Hzfnom Generator power (Calculated)200.125 WPnom Copper losses (Calculated)167.097 WPcopper Eddy current losses (Calculated)0.258428 WPeddy Generator efficiency (Calculated)0.52211 efficiency_real AC Power at the rectifier (Calculated)180.112 WPnom_rect DC Power at the batteries (Calculated)162.101 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)15.8197 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost217.14 EURTotalcost Total generator mass20.6069 kgrTotalMass Total generator volume5.40156 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets46.3403 EURMagcost Magnet shipping cost31.3043 EURshippingcost Copper mass4.31715 kgrmcu Cost of copper63.7211 EURcoppercost Resin mass2.65616 kgrresinmass Cost of resin36.6893 EURresincost Resin volume1953.06 cm3ResinVolume Total mass of one generator rotor6.81682 kgrTotalMassRotor Cost of iron13.5812 EURironcost Surface area of moulds0.358635 m2woodS Total cost of moulds56.8077 EURwoodcost Output files Octave/Matlab variable file: simulation-9685.mat Input parameters Blade Rotor Inputs Turbine radius: 0.90mAerodynamic coefficient: 0.35Cut-in wind speed: 3.00m/sNominal wind speed: 9.00m/sCut-in TSR: 5.00Design TSR: 6.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 12Magnet length: 60mmMagnet width: 20mmMagnet thickness: 18mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 15mmCurrent density: 5.00A/mm2 System Inputs System voltage: 68.00VNominal voltage: 84.00VTransmission 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