Submitted by fromwastetowind on Thu, 27/02/2025 - 14:42 Duration: 00:00:37Tabs 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)418.322 RPMn_nom Nominal tip speed ratio4.37844 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.343928 ai Inner-to-outer magnet radius0.574654 kd Flux density in airgap0.133543 TBmax Flux density on magnet surface0.194181 TBmg First harmonic of flux density in airgap0.10517 TBp Flux per pole (Calculated)0.000234069 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets22.4437 mmdist_magnet_Rin Magnet mass2592 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet21600 mm3Vmag Volume of all magnets518400 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter282.831 mmDout Average radius111.062 mmRavg Inner radius81.0616 mmRin Outer radius141.416 mmRout Effective outer radius141.062 mmRout_eff Mass of rotor disks9.88893 kgrBackIronMass Volume of rotor disks1256.53 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.282167 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness18 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil617 Nc Copper wire diameter0.71 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.4 mm2sc Copper wire cross-sectional area (Calculated)0.340632 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.658731 mmdc_theor Coil leg width18.2815 mmwc Average length of coil turn217.404 mmlavg Stator nominal temperature68.9279 C°tc_real Stator surface area715.404 cm²stator_surface_area Heat coefficient0.242701 cq_real Current density4.2579 AJmax_real Resistivity of copper at nominal temperature1.98325E-8 Ohm.mpt Resistance of a single coil6.65074 OhmRc Phase resistance19.9522 OhmRphase Phase inductance0.0799211 HLs Nagaoka constant0.266507 Kn Winding coefficient0.95 kw Volume of a single coil71540.4 mm3coil_volume Weight of a single coil481.233 gcoil_weight_constr Coil hole at Ravg20 mmcoil_hole_Ravg Coil hole at Rin20 mmcoil_hole_Rin_constr Coil hole at Rout20 mmcoil_hole_Rout_constr Coil mass for construction4.81233 kgrmcu_constr EMF at the cut-in wind speed (Calculated)29.0813 VEMF_cut_in EMF at the nominal wind speed (Calculated)76.4592 VEMF_nom Current at the nominal wind speed1.70316 AIac_nom Terminal voltage at the nominal wind speed39.5164 VV_term_line Nominal frequency41.8322 Hzfnom Generator power (Calculated)201.908 WPnom Copper losses (Calculated)173.63 WPcopper Eddy current losses (Calculated)0.237302 WPeddy Generator efficiency (Calculated)0.517069 efficiency_real AC Power at the rectifier (Calculated)181.718 WPnom_rect DC Power at the batteries (Calculated)163.546 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)14.7108 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost218.226 EURTotalcost Total generator mass19.8528 kgrTotalMass Total generator volume5.02614 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets46.3403 EURMagcost Magnet shipping cost31.3043 EURshippingcost Copper mass4.3171 kgrmcu Cost of copper63.7204 EURcoppercost Resin mass3.05475 kgrresinmass Cost of resin42.1949 EURresincost Resin volume2246.14 cm3ResinVolume Total mass of one generator rotor6.24046 kgrTotalMassRotor Cost of iron12.1634 EURironcost Surface area of moulds0.339692 m2woodS Total cost of moulds53.8072 EURwoodcost Output files Octave/Matlab variable file: simulation-9684.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: 12Magnet length: 60mmMagnet width: 20mmMagnet thickness: 18mmRotor 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: User definedStator thickness: 18mmCurrent density: 5.00A/mm2 System Inputs System voltage: 68.00VNominal voltage: 84.00VTransmission 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