Submitted by Juntunenn on Sun, 29/11/2020 - 17:19 Duration: 00:00:51Tabs 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)208.997 RPMn_cut_in RPM at the nominal wind speed (TSR)545.89 RPMn_nom Nominal tip speed ratio6.85638 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.20527 ai Inner-to-outer magnet radius0.850807 kd Flux density in airgap0.134742 TBmax Flux density on magnet surface0.175439 TBmg First harmonic of flux density in airgap0.0639012 TBp Flux per pole (Calculated)0.000140475 WbFlux_pole Magnets on a rotor disk16 magnet_num Distance between magnets69.5785 mmdist_magnet_Rin Magnet mass1280 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet8000 mm3Vmag Volume of all magnets256000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter536.592 mmDout Average radius248.11 mmRavg Inner radius228.11 mmRin Outer radius268.296 mmRout Effective outer radius268.11 mmRout_eff Mass of rotor disks35.5946 kgrBackIronMass Volume of rotor disks4522.82 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.221171 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness13 mmtw Number of phases3 nphase Number of coils per phase4 q Total number of coils in stator12 coil_num Number of turns per coil155 Nc Copper wire diameter1.7 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.5 kf Copper wire cross-sectional area2.27 mm2sc Copper wire cross-sectional area (Calculated)2.03571 mm²sc_theor Copper wire cross-sectional area of a sinlge wire2.27 mm²sc_multi_wires Copper wire diameter (Calculated)1.61036 mmdc_theor Coil leg width54.6721 mmwc Average length of coil turn268.157 mmlavg Stator nominal temperature42.8918 C°tc_real Stator surface area3518.57 cm²stator_surface_area Heat coefficient0.11826 cq_real Current density4.48395 AJmax_real Resistivity of copper at nominal temperature1.82791E-8 Ohm.mpt Resistance of a single coil0.334695 OhmRc Phase resistance1.33878 OhmRphase Phase inductance0.00673105 HLs Nagaoka constant0.126626 Kn Winding coefficient0.95 kw Volume of a single coil190589 mm3coil_volume Weight of a single coil854.383 gcoil_weight_constr Coil hole at Ravg20 mmcoil_hole_Ravg Coil hole at Rin9.59315 mmcoil_hole_Rin_constr Coil hole at Rout30.5213 mmcoil_hole_Rout_constr Coil mass for construction11.107 kgrmcu_constr EMF at the cut-in wind speed (Calculated)10.264 VEMF_cut_in EMF at the nominal wind speed (Calculated)26.7425 VEMF_nom Current at the nominal wind speed10.1786 AIac_nom Terminal voltage at the nominal wind speed11.2904 VV_term_line Nominal frequency72.7853 Hzfnom Generator power (Calculated)344.76 WPnom Copper losses (Calculated)416.105 WPcopper Eddy current losses (Calculated)2.29497 WPeddy Generator efficiency (Calculated)0.425066 efficiency_real AC Power at the rectifier (Calculated)310.284 WPnom_rect DC Power at the batteries (Calculated)279.256 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)47.9143 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost397.559 EURTotalcost Total generator mass51.5112 kgrTotalMass Total generator volume13.3423 dm3TotalVolume Blade rotor mass3.30317 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets31.1549 EURMagcost Magnet shipping cost15.4589 EURshippingcost Copper mass10.122 kgrmcu Cost of copper149.401 EURcoppercost Resin mass4.51465 kgrresinmass Cost of resin62.3604 EURresincost Resin volume3319.59 cm3ResinVolume Total mass of one generator rotor18.4373 kgrTotalMassRotor Cost of iron43.7813 EURironcost Surface area of moulds0.699887 m2woodS Total cost of moulds110.862 EURwoodcost Output files Octave/Matlab variable file: simulation-6813.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: Double RotorMagnetic material: Ferrite C8Number of generator poles: 16Magnet length: 40mmMagnet width: 20mmMagnet thickness: 10mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: KeyholeWinding fill factor: User definedWinding fill factor: 0.50Stator thickness: User definedStator thickness: 13mmCurrent density: 5.00A/mm2 System Inputs System voltage: 24.00VNominal voltage: 24.00VTransmission 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
