Submitted by AHMEDNA8 on Wed, 11/11/2020 - 11:02 Duration: 00:00:40Tabs 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)113.998 RPMn_cut_in RPM at the nominal wind speed (TSR)342.894 RPMn_nom Nominal tip speed ratio8.77301 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.354558 ai Inner-to-outer magnet radius0.750809 kd Flux density in airgap0.612919 TBmax Flux density on magnet surface0.684442 TBmg First harmonic of flux density in airgap0.401874 TBp Flux per pole (Calculated)0.000950284 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets42.5696 mmdist_magnet_Rin Magnet mass2484 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet13800 mm3Vmag Volume of all magnets331200 mm3VolumeMagnet Remanent magnetic flux density1.35 TBr Magnetic coercivity1041910 A/mHc Maximum Energy Product366 KJ/m³BHmax Outer diameter370.412 mmDout Average radius161.598 mmRavg Inner radius138.598 mmRin Outer radius185.206 mmRout Effective outer radius184.598 mmRout_eff Mass of rotor disks16.9615 kgrBackIronMass Volume of rotor disks2155.21 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.18363 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 coil37 Nc Copper wire diameter1.7 mmdc Number of wires at hand4 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area9.08 mm2sc Copper wire cross-sectional area (Calculated)8.25658 mm²sc_theor Copper wire cross-sectional area of a sinlge wire2.27 mm²sc_multi_wires Copper wire diameter (Calculated)3.24314 mmdc_theor Coil leg width41.1296 mmwc Average length of coil turn259.577 mmlavg Stator nominal temperature69.761 C°tc_real Stator surface area1921.74 cm²stator_surface_area Heat coefficient0.246207 cq_real Current density5.45589 AJmax_real Resistivity of copper at nominal temperature2.02519E-8 Ohm.mpt Resistance of a single coil0.0214214 OhmRc Phase resistance0.0642643 OhmRphase Phase inductance0.000302408 HLs Nagaoka constant0.163918 Kn Winding coefficient0.95 kw Volume of a single coil160145 mm3coil_volume Weight of a single coil821.778 gcoil_weight_constr Coil hole at Ravg30 mmcoil_hole_Ravg Coil hole at Rin13.9942 mmcoil_hole_Rin_constr Coil hole at Rout45.9944 mmcoil_hole_Rout_constr Coil mass for construction8.21778 kgrmcu_constr EMF at the cut-in wind speed (Calculated)5.132 VEMF_cut_in EMF at the nominal wind speed (Calculated)15.2583 VEMF_nom Current at the nominal wind speed49.5395 AIac_nom Terminal voltage at the nominal wind speed11.2904 VV_term_line Nominal frequency34.2894 Hzfnom Generator power (Calculated)1677.96 WPnom Copper losses (Calculated)473.145 WPcopper Eddy current losses (Calculated)61.5824 WPeddy Generator efficiency (Calculated)0.747187 efficiency_real AC Power at the rectifier (Calculated)1510.17 WPnom_rect DC Power at the batteries (Calculated)1359.15 WPnom_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub5 No_bolts_hub Mass of bearing hub8344.46 gBearingHubMass Rotational losses (Calculated)33.0168 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost492.594 EURTotalcost Total generator mass29.8568 kgrTotalMass Total generator volume6.35788 dm3TotalVolume Blade rotor mass20.3543 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets250.082 EURMagcost Magnet shipping cost20 EURshippingcost Copper mass7.01672 kgrmcu Cost of copper103.567 EURcoppercost Resin mass3.39456 kgrresinmass Cost of resin46.8888 EURresincost Resin volume2496 cm3ResinVolume Total mass of one generator rotor9.72277 kgrTotalMassRotor Cost of iron20.8627 EURironcost Surface area of moulds0.449453 m2woodS Total cost of moulds71.1933 EURwoodcost Output files Octave/Matlab variable file: simulation-6553.mat Input parameters Blade Rotor Inputs Turbine radius: 2.20mAerodynamic coefficient: 0.34Cut-in wind speed: 3.00m/sNominal wind speed: 9.00m/sCut-in TSR: 8.75Design TSR: 7.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: NdFeB N45Number of generator poles: 12Magnet length: 46mmMagnet width: 30mmMagnet thickness: 10mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 2.00mm Generator Stator Inputs Select coil type: KeyholeWinding fill factor: User definedWinding fill factor: 0.55Stator thickness: CalculatedCurrent density: 6.00A/mm2 System Inputs System voltage: 12.00VNominal voltage: 24.00VTransmission 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