Submitted by Juntunenn on Sun, 29/11/2020 - 17:52 Duration: 00:00:21Tabs 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)258.758 RPMn_cut_in RPM at the nominal wind speed (TSR)448.541 RPMn_nom Nominal tip speed ratio5.12152 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness8 mmhr Magnet width-to-pole pitch ratio0.778053 ai Inner-to-outer magnet radius0.858071 kd Flux density in airgap0.141776 TBmax Flux density on magnet surface0.184159 TBmg First harmonic of flux density in airgap0.139937 TBp Flux per pole (Calculated)0.000147438 WbFlux_pole Magnets on a rotor disk64 magnet_num Distance between magnets3.7417 mmdist_magnet_Rin Magnet mass5120 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet8000 mm3Vmag Volume of all magnets1024000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter564.016 mmDout Average radius261.831 mmRavg Inner radius241.831 mmRin Outer radius282.008 mmRout Effective outer radius281.831 mmRout_eff Mass of rotor disks31.4607 kgrBackIronMass Volume of rotor disks3997.54 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.344386 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness10 mmtw Number of phases3 nphase Number of coils per phase16 q Total number of coils in stator48 coil_num Number of turns per coil15 Nc Copper wire diameter1.7 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.5 kf Copper wire cross-sectional area2.27 mm2sc Copper wire cross-sectional area (Calculated)2.02912 mm²sc_theor Copper wire cross-sectional area of a sinlge wire2.27 mm²sc_multi_wires Copper wire diameter (Calculated)1.60775 mmdc_theor Coil leg width6.8781 mmwc Average length of coil turn129.554 mmlavg Stator nominal temperature37.7831 C°tc_real Stator surface area855.441 cm²stator_surface_area Heat coefficient0.0890811 cq_real Current density4.46942 AJmax_real Resistivity of copper at nominal temperature1.80162E-8 Ohm.mpt Resistance of a single coil0.0154234 OhmRc Phase resistance0.246774 OhmRphase Phase inductance0.000170676 HLs Nagaoka constant0.282468 Kn Winding coefficient0.95 kw Volume of a single coil8910.84 mm3coil_volume Weight of a single coil44.6954 gcoil_weight_constr Coil hole at Ravg20 mmcoil_hole_Ravg Coil hole at Rin17.3956 mmcoil_hole_Rin_constr Coil hole at Rout22.6293 mmcoil_hole_Rout_constr Coil mass for construction2.19007 kgrmcu_constr EMF at the cut-in wind speed (Calculated)20.528 VEMF_cut_in EMF at the nominal wind speed (Calculated)35.71 VEMF_nom Current at the nominal wind speed10.1456 AIac_nom Terminal voltage at the nominal wind speed30.5782 VV_term_line Nominal frequency239.222 Hzfnom Generator power (Calculated)930.701 WPnom Copper losses (Calculated)76.2036 WPcopper Eddy current losses (Calculated)46.3908 WPeddy Generator efficiency (Calculated)0.851977 efficiency_real AC Power at the rectifier (Calculated)837.631 WPnom_rect DC Power at the batteries (Calculated)753.868 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)39.106 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost341.523 EURTotalcost Total generator mass40.7915 kgrTotalMass Total generator volume12.992 dm3TotalVolume Blade rotor mass3.30317 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets124.62 EURMagcost Magnet shipping cost61.8357 EURshippingcost Copper mass1.89298 kgrmcu Cost of copper27.9404 EURcoppercost Resin mass2.31787 kgrresinmass Cost of resin32.0165 EURresincost Resin volume1704.32 cm3ResinVolume Total mass of one generator rotor18.2903 kgrTotalMassRotor Cost of iron38.6966 EURironcost Surface area of moulds0.746524 m2woodS Total cost of moulds118.249 EURwoodcost Output files Octave/Matlab variable file: simulation-6828.mat Input parameters Blade Rotor Inputs Turbine radius: 1.20mAerodynamic coefficient: 0.30Cut-in wind speed: 5.00m/sNominal wind speed: 11.00m/sCut-in TSR: 6.50Design TSR: 4.10Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 64Magnet length: 40mmMagnet width: 20mmMagnet thickness: 10mmRotor disk thickness: User DefinedRotor disk thickness: 8mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: KeyholeWinding fill factor: User definedWinding fill factor: 0.50Stator thickness: User definedStator thickness: 10mmCurrent density: 5.00A/mm2 System Inputs System voltage: 48.00VNominal voltage: 65.00VTransmission 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