Submitted by fromwastetowind on Thu, 27/02/2025 - 15:09 Duration: 00:00:38Tabs 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)335.972 RPMn_nom Nominal tip speed ratio3.5165 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.643336 ai Inner-to-outer magnet radius0.596631 kd Flux density in airgap0.181924 TBmax Flux density on magnet surface0.199472 TBmg First harmonic of flux density in airgap0.175633 TBp Flux per pole (Calculated)0.000487142 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets6.468 mmdist_magnet_Rin Magnet mass5184 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet43200 mm3Vmag Volume of all magnets1036800 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter300.172 mmDout Average radius118.747 mmRavg Inner radius88.7473 mmRin Outer radius150.086 mmRout Effective outer radius148.747 mmRout_eff Mass of rotor disks11.1387 kgrBackIronMass Volume of rotor disks1415.34 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.516772 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 coil370 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)0.283195 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.600631 mmdc_theor Coil leg width10.963 mmwc Average length of coil turn234.424 mmlavg Stator nominal temperature68.699 C°tc_real Stator surface area462.596 cm²stator_surface_area Heat coefficient0.241734 cq_real Current density4.24792 AJmax_real Resistivity of copper at nominal temperature1.98464E-8 Ohm.mpt Resistance of a single coil4.30354 OhmRc Phase resistance12.9106 OhmRphase Phase inductance0.0361232 HLs Nagaoka constant0.288092 Kn Winding coefficient0.95 kw Volume of a single coil46259.6 mm3coil_volume Weight of a single coil311.847 gcoil_weight_constr Coil hole at Ravg40 mmcoil_hole_Ravg Coil hole at Rin40 mmcoil_hole_Rin_constr Coil hole at Rout40 mmcoil_hole_Rout_constr Coil mass for construction3.11847 kgrmcu_constr EMF at the cut-in wind speed (Calculated)36.3517 VEMF_cut_in EMF at the nominal wind speed (Calculated)76.6389 VEMF_nom Current at the nominal wind speed1.69917 AIac_nom Terminal voltage at the nominal wind speed51.7477 VV_term_line Nominal frequency33.5972 Hzfnom Generator power (Calculated)263.784 WPnom Copper losses (Calculated)111.825 WPcopper Eddy current losses (Calculated)0.176815 WPeddy Generator efficiency (Calculated)0.676053 efficiency_real AC Power at the rectifier (Calculated)237.406 WPnom_rect DC Power at the batteries (Calculated)213.665 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)14.3963 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost233.203 EURTotalcost Total generator mass21.8952 kgrTotalMass Total generator volume5.66134 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets82.8287 EURMagcost Magnet shipping cost62.6087 EURshippingcost Copper mass2.79154 kgrmcu Cost of copper41.2031 EURcoppercost Resin mass2.78101 kgrresinmass Cost of resin38.4138 EURresincost Resin volume2044.86 cm3ResinVolume Total mass of one generator rotor8.16135 kgrTotalMassRotor Cost of iron13.7006 EURironcost Surface area of moulds0.360206 m2woodS Total cost of moulds57.0567 EURwoodcost Output files Octave/Matlab variable file: simulation-9690.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: 40mmMagnet 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: 6.00A/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