Submitted by RemiPeltier on Sat, 17/06/2023 - 17:07 Duration: 00:07:44Tabs Results Generator efficiency vs speed plot (Flux linkage)Generator efficiency vs current plot (Flux linkage)Electromagnetic efficiency vs speed plot (Flux Linkage) Electromagnetic efficiency vs current plot (Flux Linkage) Copper losses vs current plot (Flux Linkage)Rotational losses vs speed plot (Flux Linkage)Eddy current losses vs speed plot (Flux Linkage)Generator power vs speed plot (Flux Linkage)Generator power vs current plot (Flux Linkage)Electromagnetic power vs speed plot (Flux Linkage) Electromagnetic power vs current plot (Flux Linkage) Mechanical power vs speed plot (Flux Linkage)Mechanical power vs current plot (Flux Linkage)Force in airgap plotTorque plot (Torque)Average torque plot (Torque)Electromagnetic torque vs speed plot (Flux Linkage)Rotational losses torque vs speed plot (Flux Linkage)Mechanical torque vs speed plot (Flux Linkage)Frequency plotTerminal voltage vs speed plot (Flux Linkage)Terminal voltage vs current plot (Flux Linkage)DC power plot (Flux Linkage) DC current plot (Flux Linkage)DC voltage (Flux Linkage)Average RMS flux linkage plotFlux linkage plot of phase AFlux linkage plot of phase BFlux linkage plot of phase CEMF plot of phase AEMF plot of phase BEMF plot of phase CCurrent of phase A plotCurrent of phase B plotCurrent of phase C plotEMF vs speed plot (Flux Linkage)EMF vs current plot (Flux Linkage)Flux density in airgap plotFlux density on magnet surface plotPower angle plotMechanical angle plotFlux density in the magnet rotor disk Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)57.3248 RPMn_cut_in RPM at the nominal wind speed (TSR)100.318 RPMn_nom Nominal tip speed ratio3.15 tsr_nom RPM at the cut-in wind speed (Flux Linkage)73 RPMcutin_RPM Cut-in Voltage (Flux Linkage)300 Vcutin_Voltage Wind speed at cut-in RPM (Flux Linkage)3.82033 m/scutin_Vw Mechanical power (Torque)2830.51 WPmech_Torque_x Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.249701 ai Inner-to-outer magnet radius0.906526 kd Flux density in airgap0.385138 TBmax Flux density on magnet surface0.568757 TBmg First harmonic of flux density in airgap0.22373 TBp Flux per pole (Calculated)0.000568668 WbFlux_pole Magnets on a rotor disk40 magnet_num Distance between magnets56.1689 mmdist_magnet_Rin Magnet mass6000 gMagnetMass Magnet density7.5 g/cm3mag_density Volume of a single magnet10000 mm3Vmag Volume of all magnets800000 mm3VolumeMagnet Remanent magnetic flux density1.195 TBr Magnetic coercivity918880 A/mHc Maximum Energy Product287 KJ/m³BHmax Outer diameter1070 mmDout Average radius509.907 mmRavg Inner radius484.907 mmRin Outer radius535 mmRout Effective outer radius534.907 mmRout_eff Mass of rotor disks141.534 kgrBackIronMass Volume of rotor disks17984 cm3BackIronVolume Maximum flux density in the magnet rotor disk0.707036 TSaturMAX Is the magnet rotor disk saturated?No Saturation Generator Stator Outputs PropertyValueVariable name Stator thickness20 mmtw Number of phases3 nphase Number of coils per phase10 q Total number of coils in stator30 coil_num Number of turns per coil216 Nc Copper wire diameter1.63 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.55 kf Copper wire cross-sectional area2.08672 mm2sc Copper wire diameter (Calculated)1.63 mmdc_theor Coil leg width41 mmwc Average length of coil turn252.654 mmlavg Stator nominal temperature57.7 C°tc_real Stator surface area6215.29 cm²stator_surface_area Heat coefficient0.0708062 cq_real Current density2.58779 AJmax_real Resistivity of copper at nominal temperature1.92472E-8 Ohm.mpt Resistance of a single coil0.503363 OhmRc Phase resistance5.03363 OhmRphase Phase inductance0.0306544 HLs Nagaoka constant0.205855 Kn Volume of a single coil207176 mm3coil_volume Weight of a single coil1027.51 gcoil_weight_constr Coil hole at Ravg24.2946 mmcoil_hole_Ravg Coil hole at Rin19.0574 mmcoil_hole_Rin_constr Coil hole at Rout29.5268 mmcoil_hole_Rout_constr Coil mass for construction31.8528 kgrmcu_constr RMS flux linkage of phase A0.0810103 WbFluxRmsA RMS flux linkage of phase B0.0794028 WbFluxRmsB RMS flux linkage of phase C0.0802852 WbFluxRmsC EMF at the cut-in wind speed (Calculated)128.3 VEMF_cut_in EMF at the nominal wind speed (Calculated)224.525 VEMF_nom RMS of EMF of phase A (Flux Linkage)167.639 VV_rmsA RMS of EMF of phase B (Flux Linkage)169.871 VV_rmsB RMS of EMF of phase C (Flux Linkage)168.217 VV_rmsC Current at the nominal wind speed5.4 AIac_nom Nominal frequency33.4395 Hzfnom Generator power (Torque)2344.76 WPelN_Torque_x Electromagnetic power (Torque)2787.68 WPHMN_Torque_x Copper losses (Torque)440.342 WPcopperN_Torque_x Eddy current losses (Torque)2.57783 WPeddyN_Torque_x Generator efficiency (Torque)0.82839 efftotalN_Torque_x AC Power at the rectifier (Torque)2110.29 WPelN_Torque_x_rect DC Power at the batteries (Torque)1899.26 WPelN_Torque_x_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub6 No_bolts_hub Mass of bearing hub14290.7 gBearingHubMass Rotational losses (Torque)42.8234 WProtN_Torque_x Costs, Mass and Volume PropertyValueVariable name Total generator cost1684.93 EURTotalcost Total generator mass193.938 kgrTotalMass Total generator volume56.6497 dm3TotalVolume Blade rotor mass51.6121 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets543.645 EURMagcost Magnet shipping cost48.3092 EURshippingcost Copper mass30.5424 kgrmcu Cost of copper450.806 EURcoppercost Resin mass15.861 kgrresinmass Cost of resin219.087 EURresincost Resin volume11662.5 cm3ResinVolume Total mass of one generator rotor73.7672 kgrTotalMassRotor Cost of iron174.087 EURironcost Surface area of moulds1.8769 m2woodS Total cost of moulds297.301 EURwoodcost Revolutions per minute (RPM) 0 100.318471 IRMS (A) 0 5.4 Output files Octave/Matlab variable file: simulation-8291.mat Input parameters Blade Rotor Inputs Turbine radius: 3.00mCut-in wind speed: 3.00m/sNominal wind speed: 10.00m/sCut-in TSR: 6.00Nominal TSR: 3.15Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorOuter diameter: 1070.00mmMagnetic material: NdFeB N35Number of generator poles: 40Magnet length: 50mmMagnet width: 20mmMagnet thickness: 10mmRotor disk thickness: 10mmMechanical clearance: 1.50mm Generator Stator Inputs Select coil type: KeyholeWinding fill factor: 0.55Current at nominal wind speed: 5.40AStator thickness: 20mmNumber of turns per coil: 216Copper wire diameter: 1.63mmNumber of wires at hand: 1Coil leg width: 41mmStator nominal temperature: 57.70C° System Inputs System voltage: 300.00VTransmission 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 Simulation Radius: Average radiusSimulation step: 2Current step: 1RPM Step: 1Mesh size: Automesh Constants Copper resistivity: 1.678E-8 Ω·mCopper density: 8.94g/cm³Iron density: 7.87g/cm³Resin density: 1.36g/cm³