Submitted by Rjcarvalho00 on Fri, 23/08/2019 - 12:09 Duration: 00:00:11Tabs Results Flux density in airgap plotFlux density on magnet surface plot Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)208.997 RPMn_cut_in RPM at the nominal wind speed (TSR)428.495 RPMn_nom Nominal tip speed ratio5.3819 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.723999 ai Inner-to-outer magnet radius0.549628 kd Flux density in airgap0.229811 TBmax Flux density on magnet surface0.405075 TBmg First harmonic of flux density in airgap0.108807 TBp Flux per pole (Calculated)0.000561382 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets-0.6063 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 diameter206.467 mmDout Average radius79.1378 mmRavg Inner radius56.1378 mmRin Outer radius103.233 mmRout Effective outer radius102.138 mmRout_eff Mass of rotor disks2.63491 kgrBackIronMass Volume of rotor disks334.804 cm3BackIronVolume Generator Stator Outputs PropertyValueVariable name Stator thickness63 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil35 Nc Copper wire diameter1.7 mmdc Number of wires at hand2 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area4.54 mm2sc Copper wire cross-sectional area (Calculated)4.2577 mm²sc_theor Copper wire cross-sectional area of a sinlge wire2.27 mm²sc_multi_wires Copper wire diameter (Calculated)2.32891 mmdc_theor Coil leg width4.58586 mmwc Average length of coil turn166.4 mmlavg Stator nominal temperature431.503 C°tc_real Stator surface area137.355 cm²stator_surface_area Heat coefficient1.09376 cq_real Current density5.62692 AJmax_real Resistivity of copper at nominal temperature1.99392E-8 Ohm.mpt Resistance of a single coil0.0255783 OhmRc Phase resistance0.076735 OhmRphase Phase inductance0.000108047 HLs Nagaoka constant0.668946 Kn Winding coefficient0.95 kw Volume of a single coil48074.4 mm3coil_volume Weight of a single coil249.889 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 construction2.49889 kgrmcu_constr EMF at the cut-in wind speed (Calculated)5.132 VEMF_cut_in EMF at the nominal wind speed (Calculated)10.6552 VEMF_nom Current at the nominal wind speed25.5462 AIac_nom Terminal voltage at the nominal wind speed5.6452 VV_term_line Nominal frequency42.8495 Hzfnom Generator power (Calculated)432.64 WPnom Copper losses (Calculated)150.234 WPcopper Eddy current losses (Calculated)1.80111 WPeddy Generator efficiency (Calculated)0.72704 efficiency_real AC Power at the rectifier (Calculated)389.376 WPnom_rect DC Power at the batteries (Calculated)350.439 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)10.3959 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost410.607 EURTotalcost Total generator mass14.832 kgrTotalMass Total generator volume2.87931 dm3TotalVolume Blade rotor mass3.30317 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets230.554 EURMagcost Magnet shipping cost20 EURshippingcost Copper mass2.12743 kgrmcu Cost of copper31.4009 EURcoppercost Resin mass7.58562 kgrresinmass Cost of resin104.779 EURresincost Resin volume5577.66 cm3ResinVolume Total mass of one generator rotor5.11891 kgrTotalMassRotor Cost of iron3.24093 EURironcost Surface area of moulds0.256509 m2woodS Total cost of moulds40.631 EURwoodcost Output files Octave/Matlab variable file: simulation-6132.mat Input parameters Blade Rotor Inputs Turbine radius: 1.20mAerodynamic coefficient: 0.30Cut-in wind speed: 3.00m/sNominal wind speed: 10.00m/sCut-in TSR: 8.75Design 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: CalculatedMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.55Current density: 6.00A/mm2 System Inputs System voltage: 12.00VNominal voltage: 12.00VTransmission 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
