Submitted by amnabreiche on Mon, 13/11/2023 - 16:57 Duration: 00:00:07Tabs Results Flux density in airgap plotFlux density on magnet surface plot Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)480.096 RPMn_cut_in RPM at the nominal wind speed (TSR)691.684 RPMn_nom Nominal tip speed ratio4.34378 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.769483 ai Inner-to-outer magnet radius0.528012 kd Flux density in airgap0.267602 TBmax Flux density on magnet surface0.494048 TBmg First harmonic of flux density in airgap0.263173 TBp Flux per pole (Calculated)0.000695767 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets-3.0556 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 density1.265 TBr Magnetic coercivity982324 A/mHc Maximum Energy Product326 KJ/m³BHmax Outer diameter197.215 mmDout Average radius74.4601 mmRavg Inner radius51.4601 mmRin Outer radius98.6076 mmRout Effective outer radius97.4601 mmRout_eff Mass of rotor disks2.40406 kgrBackIronMass Volume of rotor disks305.472 cm3BackIronVolume Generator Stator Outputs PropertyValueVariable name Stator thickness13 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil24 Nc Copper wire diameter1.06 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area0.88 mm2sc Copper wire cross-sectional area (Calculated)0.827625 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.88 mm²sc_multi_wires Copper wire diameter (Calculated)1.02679 mmdc_theor Coil leg width2.95385 mmwc Average length of coil turn161.275 mmlavg Stator nominal temperature65.8957 C°tc_real Stator surface area85.7487 cm²stator_surface_area Heat coefficient0.229743 cq_real Current density5.6429 AJmax_real Resistivity of copper at nominal temperature2.01819E-8 Ohm.mpt Resistance of a single coil0.0887684 OhmRc Phase resistance0.266305 OhmRphase Phase inductance0.000115063 HLs Nagaoka constant0.332813 Kn Winding coefficient0.95 kw Volume of a single coil6192.96 mm3coil_volume Weight of a single coil32.9884 gcoil_weight_constr Coil hole at Ravg30 mmcoil_hole_Ravg Coil hole at Rin30 mmcoil_hole_Rin_constr Coil hole at Rout30 mmcoil_hole_Rout_constr Coil mass for construction0.329884 kgrmcu_constr EMF at the cut-in wind speed (Calculated)10.264 VEMF_cut_in EMF at the nominal wind speed (Calculated)14.6175 VEMF_nom Current at the nominal wind speed4.96575 AIac_nom Terminal voltage at the nominal wind speed11.2904 VV_term_line Nominal frequency69.1684 Hzfnom Generator power (Calculated)168.196 WPnom Copper losses (Calculated)19.7002 WPcopper Eddy current losses (Calculated)0.702803 WPeddy Generator efficiency (Calculated)0.836535 efficiency_real AC Power at the rectifier (Calculated)151.376 WPnom_rect DC Power at the batteries (Calculated)136.239 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)12.4636 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost292.144 EURTotalcost Total generator mass6.27901 kgrTotalMass Total generator volume1.0997 dm3TotalVolume Blade rotor mass0.412897 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets230.554 EURMagcost Magnet shipping cost20 EURshippingcost Copper mass0.274057 kgrmcu Cost of copper4.04508 EURcoppercost Resin mass1.11689 kgrresinmass Cost of resin15.4275 EURresincost Resin volume821.242 cm3ResinVolume Total mass of one generator rotor4.88806 kgrTotalMassRotor Cost of iron2.957 EURironcost Surface area of moulds0.247223 m2woodS Total cost of moulds39.1601 EURwoodcost Output files Octave/Matlab variable file: simulation-8379.mat Input parameters Blade Rotor Inputs Turbine radius: 0.60mAerodynamic coefficient: 0.32Cut-in wind speed: 3.35m/sNominal wind speed: 10.00m/sCut-in TSR: 9.00Design TSR: 7.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Single RotorMagnetic material: NdFeB N40Number of generator poles: 12Magnet length: 46mmMagnet width: 30mmMagnet thickness: 10mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.55Stator thickness: 13mmCurrent density: 6.00A/mm2 System Inputs System voltage: 24.00VNominal 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
