Submitted by ceshammer on Thu, 29/03/2018 - 20:01 Duration: 00:03:17Tabs 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)139.331 RPMn_cut_in RPM at the nominal wind speed (TSR)319.282 RPMn_nom Nominal tip speed ratio6.01528 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.119666 ai Inner-to-outer magnet radius0.865575 kd Flux density in airgap0.576802 TBmax Flux density on magnet surface0.645042 TBmg First harmonic of flux density in airgap0.13816 TBp Flux per pole (Calculated)0.000891417 WbFlux_pole Magnets on a rotor disk8 magnet_num Distance between magnets202.633 mmdist_magnet_Rin Magnet mass1656 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet13800 mm3Vmag Volume of all magnets220800 mm3VolumeMagnet Remanent magnetic flux density1.265 TBr Magnetic coercivity982324 A/mHc Maximum Energy Product326 KJ/m³BHmax Outer diameter685.051 mmDout Average radius319.197 mmRavg Inner radius296.197 mmRin Outer radius342.526 mmRout Effective outer radius342.197 mmRout_eff Mass of rotor disks58.0151 kgrBackIronMass Volume of rotor disks7371.67 cm3BackIronVolume Maximum flux density in the magnet rotor disk1.11147 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 phase2 q Total number of coils in stator6 coil_num Number of turns per coil147 Nc Copper wire diameter1.7 mmdc Number of wires at hand3 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area6.81 mm2sc Copper wire cross-sectional area (Calculated)6.78947 mm²sc_theor Copper wire cross-sectional area of a sinlge wire2.27 mm²sc_multi_wires Copper wire diameter (Calculated)2.94092 mmdc_theor Coil leg width140.01 mmwc Average length of coil turn591.631 mmlavg Stator nominal temperature39.2038 C°tc_real Stator surface area9940.09 cm²stator_surface_area Heat coefficient0.0974163 cq_real Current density3.88824 AJmax_real Resistivity of copper at nominal temperature1.80239E-8 Ohm.mpt Resistance of a single coil0.230181 OhmRc Phase resistance0.460362 OhmRphase Phase inductance0.00682836 HLs Nagaoka constant0.0586805 Kn Winding coefficient0.95 kw Volume of a single coil1076840 mm3coil_volume Weight of a single coil5366.88 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 construction37.5681 kgrmcu_constr EMF at the cut-in wind speed (Calculated)10.264 VEMF_cut_in EMF at the nominal wind speed (Calculated)23.5331 VEMF_nom Current at the nominal wind speed26.4789 AIac_nom Terminal voltage at the nominal wind speed10.7772 VV_term_line Nominal frequency21.2855 Hzfnom Generator power (Calculated)856.107 WPnom Copper losses (Calculated)968.327 WPcopper Eddy current losses (Calculated)5.64424 WPeddy Generator efficiency (Calculated)0.455224 efficiency_real AC Power at the rectifier (Calculated)813.302 WPnom_rect DC Power at the batteries (Calculated)731.972 WPnom_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub5 No_bolts_hub Mass of bearing hub8344.46 gBearingHubMass Rotational losses (Calculated)50.5512 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost957.819 EURTotalcost Total generator mass99.4143 kgrTotalMass Total generator volume21.7464 dm3TotalVolume Blade rotor mass11.1482 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets153.703 EURMagcost Magnet shipping cost13.3333 EURshippingcost Copper mass31.769 kgrmcu Cost of copper468.911 EURcoppercost Resin mass7.97422 kgrresinmass Cost of resin110.147 EURresincost Resin volume5863.39 cm3ResinVolume Total mass of one generator rotor29.8355 kgrTotalMassRotor Cost of iron71.3585 EURironcost Surface area of moulds0.970326 m2woodS Total cost of moulds153.7 EURwoodcost Output files Octave/Matlab variable file: simulation-491.mat Input parameters Blade Rotor Inputs Turbine radius: 1.80mAerodynamic coefficient: 0.30Cut-in wind speed: 3.00m/sNominal wind speed: 10.00m/sCut-in TSR: 8.75Design TSR: 7.00Air density: 1.225kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: NdFeB N40Number of generator poles: 8Magnet length: 46mmMagnet width: 30mmMagnet thickness: 10mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.55Stator thickness: User definedStator thickness: 13mmCurrent density: 3.90A/mm2 System Inputs System voltage: 24.00VNominal voltage: 24.00VTransmission cable losses: 5.00%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
