Submitted by fromwastetowind on Fri, 11/10/2024 - 11:53 Duration: 00:00:57Tabs 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)402.554 RPMn_nom Nominal tip speed ratio4.2134 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.702772 ai Inner-to-outer magnet radius0.567425 kd Flux density in airgap0.229747 TBmax Flux density on magnet surface0.227659 TBmg First harmonic of flux density in airgap0.234891 TBp Flux per pole (Calculated)0.000857478 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets1.8142 mmdist_magnet_Rin Magnet mass5760 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet72000 mm3Vmag Volume of all magnets1152000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter283.823 mmDout Average radius108.704 mmRavg Inner radius78.7043 mmRin Outer radius141.912 mmRout Effective outer radius138.704 mmRout_eff Mass of rotor disks9.95841 kgrBackIronMass Volume of rotor disks1265.36 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.802427 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness14 mmtw Number of phases3 nphase Number of coils per phase2 q Total number of coils in stator6 coil_num Number of turns per coil267 Nc Copper wire diameter0.75 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.44 mm2sc Copper wire cross-sectional area (Calculated)0.418667 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.44 mm²sc_multi_wires Copper wire diameter (Calculated)0.730297 mmdc_theor Coil leg width11.1886 mmwc Average length of coil turn275.132 mmlavg Stator nominal temperature109.96 C°tc_real Stator surface area369.4 cm²stator_surface_area Heat coefficient0.394345 cq_real Current density5.70909 AJmax_real Resistivity of copper at nominal temperature2.30454E-8 Ohm.mpt Resistance of a single coil3.84754 OhmRc Phase resistance7.69508 OhmRphase Phase inductance0.0168762 HLs Nagaoka constant0.218911 Kn Winding coefficient0.95 kw Volume of a single coil43096.7 mm3coil_volume Weight of a single coil291.128 gcoil_weight_constr Coil hole at Ravg60 mmcoil_hole_Ravg Coil hole at Rin60 mmcoil_hole_Rin_constr Coil hole at Rout60 mmcoil_hole_Rout_constr Coil mass for construction2.03789 kgrmcu_constr EMF at the cut-in wind speed (Calculated)20.528 VEMF_cut_in EMF at the nominal wind speed (Calculated)51.8401 VEMF_nom Current at the nominal wind speed2.512 AIac_nom Terminal voltage at the nominal wind speed30.1077 VV_term_line Nominal frequency26.837 Hzfnom Generator power (Calculated)226.892 WPnom Copper losses (Calculated)145.671 WPcopper Eddy current losses (Calculated)0.182719 WPeddy Generator efficiency (Calculated)0.582508 efficiency_real AC Power at the rectifier (Calculated)204.203 WPnom_rect DC Power at the batteries (Calculated)183.782 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)16.7628 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost201.168 EURTotalcost Total generator mass19.0221 kgrTotalMass Total generator volume5.06145 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets87.6532 EURMagcost Magnet shipping cost69.5652 EURshippingcost Copper mass1.73378 kgrmcu Cost of copper25.5906 EURcoppercost Resin mass1.56989 kgrresinmass Cost of resin21.6847 EURresincost Resin volume1154.33 cm3ResinVolume Total mass of one generator rotor7.8592 kgrTotalMassRotor Cost of iron12.2488 EURironcost Surface area of moulds0.340849 m2woodS Total cost of moulds53.9905 EURwoodcost Output files Octave/Matlab variable file: simulation-9524.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: 8Magnet length: 60mmMagnet width: 60mmMagnet thickness: 20mmRotor 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: CalculatedCurrent density: 6.00A/mm2 System Inputs System voltage: 48.00VNominal voltage: 64.00VTransmission 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