Submitted by fromwastetowind on Sun, 18/08/2024 - 15:02 Duration: 00:01:05Tabs 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)78.1702 RPMn_cut_in RPM at the nominal wind speed (TSR)312.681 RPMn_nom Nominal tip speed ratio4 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness8 mmhr Magnet width-to-pole pitch ratio0.714367 ai Inner-to-outer magnet radius0.561852 kd Flux density in airgap0.273442 TBmax Flux density on magnet surface0.265801 TBmg First harmonic of flux density in airgap0.281862 TBp Flux per pole (Calculated)0.00136424 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets0.5 mmdist_magnet_Rin Magnet mass13720 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet171500 mm3Vmag Volume of all magnets2744000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter327.105 mmDout Average radius124.763 mmRavg Inner radius89.7634 mmRin Outer radius163.552 mmRout Effective outer radius159.763 mmRout_eff Mass of rotor disks10.5818 kgrBackIronMass Volume of rotor disks1344.57 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.41621 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 phase2 q Total number of coils in stator6 coil_num Number of turns per coil1167 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)0.19994 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.4 mm²sc_multi_wires Copper wire diameter (Calculated)0.504678 mmdc_theor Coil leg width41.4933 mmwc Average length of coil turn344.904 mmlavg Stator nominal temperature33.3858 C°tc_real Stator surface area1717.35 cm²stator_surface_area Heat coefficient0.0620349 cq_real Current density2.49925 AJmax_real Resistivity of copper at nominal temperature1.76561E-8 Ohm.mpt Resistance of a single coil17.7666 OhmRc Phase resistance35.5332 OhmRphase Phase inductance0.314927 HLs Nagaoka constant0.145792 Kn Winding coefficient0.754229 kw Volume of a single coil214668 mm3coil_volume Weight of a single coil1441.82 gcoil_weight_constr Coil hole at Ravg38 mmcoil_hole_Ravg Coil hole at Rin6 mmcoil_hole_Rin_constr Coil hole at Rout70 mmcoil_hole_Rout_constr Coil mass for construction10.0927 kgrmcu_constr EMF at the cut-in wind speed (Calculated)55.5967 VEMF_cut_in EMF at the nominal wind speed (Calculated)222.387 VEMF_nom Current at the nominal wind speed0.999698 AIac_nom Terminal voltage at the nominal wind speed110.124 VV_term_line Nominal frequency20.8454 Hzfnom Generator power (Calculated)544.036 WPnom Copper losses (Calculated)106.535 WPcopper Eddy current losses (Calculated)0.240954 WPeddy Generator efficiency (Calculated)0.812091 efficiency_real AC Power at the rectifier (Calculated)527.714 WPnom_rect DC Power at the batteries (Calculated)501.329 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)19.1077 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost407.3 EURTotalcost Total generator mass33.2864 kgrTotalMass Total generator volume8.90777 dm3TotalVolume Blade rotor mass2.54428 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets199.708 EURMagcost Magnet shipping cost165.7 EURshippingcost Copper mass8.6361 kgrmcu Cost of copper127.469 EURcoppercost Resin mass0.348551 kgrresinmass Cost of resin4.8145 EURresincost Resin volume256.287 cm3ResinVolume Total mass of one generator rotor12.1509 kgrTotalMassRotor Cost of iron13.0156 EURironcost Surface area of moulds0.39326 m2woodS Total cost of moulds62.2924 EURwoodcost Output files Octave/Matlab variable file: simulation-9275.mat Input parameters Blade Rotor Inputs Turbine radius: 1.10mAerodynamic coefficient: 0.40Cut-in wind speed: 3.00m/sNominal wind speed: 9.00m/sCut-in TSR: 3.00Design TSR: 4.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 8Magnet length: 70mmMagnet width: 70mmMagnet thickness: 35mmRotor disk thickness: User DefinedRotor disk thickness: 8mmMechanical clearance: 2.50mm Generator Stator Inputs Select coil type: TriangularWinder bolt size: 6.00mmWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 15mmCurrent density: 5.00A/mm2 System Inputs System voltage: 130.00VNominal voltage: 250.00VTransmission cable losses: 3.00%Rectifier losses: 5.00% 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