Submitted by fromwastetowind on Thu, 27/02/2025 - 15:50 Duration: 00:00:01Tabs Results Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)254.777 RPMn_cut_in RPM at the nominal wind speed (TSR)453.823 RPMn_nom Nominal tip speed ratio4.75002 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.552364 ai Inner-to-outer magnet radius0.394869 kd Flux density in airgap0.157 TBmax Flux density on magnet surface0.237 TBmg First harmonic of flux density in airgap0.1 TBp Flux per pole (Calculated)0.0002844 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets0.5 mmdist_magnet_Rin Magnet mass2880 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet24000 mm3Vmag Volume of all magnets576000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter199.31 mmDout Average radius69.1521 mmRavg Inner radius39.1521 mmRin Outer radius99.6551 mmRout Effective outer radius99.1521 mmRout_eff Mass of rotor disks4.91082 kgrBackIronMass Volume of rotor disks623.992 cm3BackIronVolume 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 coil396 Nc Copper wire diameter0.85 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.57 mm2sc Copper wire cross-sectional area (Calculated)0.503297 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.57 mm²sc_multi_wires Copper wire diameter (Calculated)0.800714 mmdc_theor Coil leg width16.72 mmwc Average length of coil turn200.155 mmlavg Stator nominal temperature54.1441 C°tc_real Stator surface area602.385 cm²stator_surface_area Heat coefficient0.176133 cq_real Current density3.53191 AJmax_real Resistivity of copper at nominal temperature2.09179E-8 Ohm.mpt Resistance of a single coil2.90874 OhmRc Phase resistance8.72621 OhmRphase Phase inductance0.0295695 HLs Nagaoka constant0.282406 Kn Winding coefficient0.95 kw Volume of a single coil60238.5 mm3coil_volume Weight of a single coil405.939 gcoil_weight_constr Coil hole at Ravg15 mmcoil_hole_Ravg Coil hole at Rin10 mmcoil_hole_Rin_constr Coil hole at Rout20 mmcoil_hole_Rout_constr Coil mass for construction4.05939 kgrmcu_constr EMF at the cut-in wind speed (Calculated)36.3517 VEMF_cut_in EMF at the nominal wind speed (Calculated)64.6846 VEMF_nom Current at the nominal wind speed2.01319 AIac_nom Terminal voltage at the nominal wind speed51.7477 VV_term_line Nominal frequency45.3823 Hzfnom Generator power (Calculated)312.534 WPnom Copper losses (Calculated)106.1 WPcopper Eddy current losses (Calculated)0.335439 WPeddy Generator efficiency (Calculated)0.725689 efficiency_real AC Power at the rectifier (Calculated)281.28 WPnom_rect DC Power at the batteries (Calculated)253.152 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)11.7023 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost167.496 EURTotalcost Total generator mass12.723 kgrTotalMass Total generator volume2.62077 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets50.3946 EURMagcost Magnet shipping cost34.7826 EURshippingcost Copper mass3.63509 kgrmcu Cost of copper53.654 EURcoppercost Resin mass1.29711 kgrresinmass Cost of resin17.9168 EURresincost Resin volume953.754 cm3ResinVolume Total mass of one generator rotor3.89541 kgrTotalMassRotor Cost of iron6.04031 EURironcost Surface area of moulds0.249311 m2woodS Total cost of moulds39.4908 EURwoodcost Output files Octave/Matlab variable file: simulation-9704.mat Input parameters Blade Rotor Inputs Turbine radius: 0.90mAerodynamic coefficient: 0.35Cut-in wind speed: 4.00m/sNominal wind speed: 9.00m/sCut-in TSR: 6.00Design TSR: 7.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 12Magnet length: 60mmMagnet width: 20mmMagnet thickness: 20mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: TriangularWinder bolt size: 10.00mmWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 18mmCurrent density: 4.00A/mm2 System Inputs System voltage: 85.00VNominal voltage: 110.00VTransmission 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