Submitted by fromwastetowind on Fri, 11/10/2024 - 12:10 Duration: 00:00:49Tabs 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)396.223 RPMn_nom Nominal tip speed ratio4.14713 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.707988 ai Inner-to-outer magnet radius0.564913 kd Flux density in airgap0.241293 TBmax Flux density on magnet surface0.237094 TBmg First harmonic of flux density in airgap0.248665 TBp Flux per pole (Calculated)0.000893526 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets1.1853 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 diameter282.258 mmDout Average radius107.903 mmRavg Inner radius77.9035 mmRin Outer radius141.129 mmRout Effective outer radius137.904 mmRout_eff Mass of rotor disks9.84888 kgrBackIronMass Volume of rotor disks1251.45 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.825453 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 coil257 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)0.424079 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.44 mm²sc_multi_wires Copper wire diameter (Calculated)0.735002 mmdc_theor Coil leg width10.7695 mmwc Average length of coil turn273.816 mmlavg Stator nominal temperature114.734 C°tc_real Stator surface area353.865 cm²stator_surface_area Heat coefficient0.409856 cq_real Current density5.7829 AJmax_real Resistivity of copper at nominal temperature2.33443E-8 Ohm.mpt Resistance of a single coil3.73354 OhmRc Phase resistance7.46708 OhmRphase Phase inductance0.0156278 HLs Nagaoka constant0.220908 Kn Winding coefficient0.95 kw Volume of a single coil41284.2 mm3coil_volume Weight of a single coil278.965 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 construction1.95275 kgrmcu_constr EMF at the cut-in wind speed (Calculated)20.528 VEMF_cut_in EMF at the nominal wind speed (Calculated)51.1784 VEMF_nom Current at the nominal wind speed2.54448 AIac_nom Terminal voltage at the nominal wind speed30.1077 VV_term_line Nominal frequency26.4149 Hzfnom Generator power (Calculated)229.825 WPnom Copper losses (Calculated)145.034 WPcopper Eddy current losses (Calculated)0.193417 WPeddy Generator efficiency (Calculated)0.587091 efficiency_real AC Power at the rectifier (Calculated)206.843 WPnom_rect DC Power at the batteries (Calculated)186.159 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)16.4124 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost199.367 EURTotalcost Total generator mass18.8179 kgrTotalMass Total generator volume4.88064 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets87.6532 EURMagcost Magnet shipping cost69.5652 EURshippingcost Copper mass1.66086 kgrmcu Cost of copper24.5143 EURcoppercost Resin mass1.54813 kgrresinmass Cost of resin21.3842 EURresincost Resin volume1138.33 cm3ResinVolume Total mass of one generator rotor7.80444 kgrTotalMassRotor Cost of iron12.1141 EURironcost Surface area of moulds0.339024 m2woodS Total cost of moulds53.7015 EURwoodcost Output files Octave/Matlab variable file: simulation-9525.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: 2.00mm 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