1.5 85X65X20 12 Triangular 1.4x2 430MM Final | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by JoaoA1977 on Wed, 04/01/2023 - 09:52

Duration:

00:08:10

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	167.197 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	343.949 RPM	n_nom
Nominal tip speed ratio	4.5	tsr_nom
RPM at the cut-in wind speed (Flux Linkage)	152 RPM	cutin_RPM
Cut-in Voltage (Flux Linkage)	58 V	cutin_Voltage
Wind speed at cut-in RPM (Flux Linkage)	2.72731 m/s	cutin_Vw
Mechanical power (Torque)	2921.22 W	Pmech_Torque_x

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.730114	ai
Inner-to-outer magnet radius	0.600055	kd
Flux density in airgap	0.237436 T	Bmax
Flux density on magnet surface	0.23328 T	Bmg
First harmonic of flux density in airgap	0.247862 T	Bp
Flux per pole (Calculated)	0.00131834 Wb	Flux_pole
Magnets on a rotor disk	12	magnet_num
Distance between magnets	1.7742 mm	dist_magnet_Rin
Magnet mass	13260 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	110500 mm3	Vmag
Volume of all magnets	2652000 mm3	VolumeMagnet
Remanent magnetic flux density	0.39 T	Br
Magnetic coercivity	227950 A/m	Hc
Maximum Energy Product	30 KJ/m³	BHmax
Outer diameter	430 mm	Dout
Average radius	170.029 mm	Ravg
Inner radius	127.529 mm	Rin
Outer radius	215 mm	Rout
Effective outer radius	212.529 mm	Rout_eff
Mass of rotor disks	22.8576 kgr	BackIronMass
Volume of rotor disks	2904.4 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.878792 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	13 mm	tw
Number of phases	3	nphase
Number of coils per phase	3	q
Total number of coils in stator	9	coil_num
Number of turns per coil	109	Nc
Copper wire diameter	1.4 mm	dc
Number of wires at hand	2	No_wires_at_hand
Winding fill factor	0.75	kf
Copper wire cross-sectional area	3.07876 mm2	sc
Copper wire diameter (Calculated)	1.9799 mm	dc_theor
Coil leg width	34 mm	wc
Average length of coil turn	353.986 mm	lavg
Stator nominal temperature	57.7 C°	tc_real
Stator surface area	2166.4 cm²	stator_surface_area
Heat coefficient	0.310673	cq_real
Current density	5.68411 A	Jmax_real
Resistivity of copper at nominal temperature	1.92472E-8 Ohm.m	pt
Resistance of a single coil	0.241215 Ohm	Rc
Phase resistance	0.723644 Ohm	Rphase
Phase inductance	0.00471251 H	Ls
Nagaoka constant	0.137166	Kn
Volume of a single coil	156462 mm3	coil_volume
Weight of a single coil	1081.49 g	coil_weight_constr
Coil hole at Rin	8 mm	coil_hole_Rin_constr
Coil hole at Rout	65 mm	coil_hole_Rout_constr
Coil mass for construction	10.8149 kgr	mcu_constr
RMS flux linkage of phase A	0.0866781 Wb	FluxRmsA
RMS flux linkage of phase B	0.0850807 Wb	FluxRmsB
RMS flux linkage of phase C	0.0856621 Wb	FluxRmsC
EMF at the cut-in wind speed (Calculated)	24.8047 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	51.0268 V	EMF_nom
RMS of EMF of phase A (Flux Linkage)	55.0564 V	V_rmsA
RMS of EMF of phase B (Flux Linkage)	55.5257 V	V_rmsB
RMS of EMF of phase C (Flux Linkage)	55.3953 V	V_rmsC
Current at the nominal wind speed	17.5 A	Iac_nom
Nominal frequency	34.3949 Hz	fnom
Generator power (Torque)	2218.28 W	PelN_Torque_x
Electromagnetic power (Torque)	2889.38 W	PHMN_Torque_x
Copper losses (Torque)	664.848 W	PcopperN_Torque_x
Eddy current losses (Torque)	6.25084 W	PeddyN_Torque_x
Generator efficiency (Torque)	0.75937	efftotalN_Torque_x
AC Power at the rectifier (Torque)	1996.46 W	PelN_Torque_x_rect
DC Power at the batteries (Torque)	1796.81 W	PelN_Torque_x_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	4	No_bolts_hub
Mass of bearing hub	3708.65 g	BearingHubMass
Rotational losses (Torque)	31.8344 W	ProtN_Torque_x

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	475.126 EUR	Totalcost
Total generator mass	47.4861 kgr	TotalMass
Total generator volume	11.4724 dm3	TotalVolume
Blade rotor mass	6.45151 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	196.517 EUR	Magcost
Magnet shipping cost	160.145 EUR	shippingcost
Copper mass	9.55805 kgr	mcu
Cost of copper	141.077 EUR	coppercost
Resin mass	1.81036 kgr	resinmass
Cost of resin	25.0063 EUR	resincost
Resin volume	1331.15 cm3	ResinVolume
Total mass of one generator rotor	18.0588 kgr	TotalMassRotor
Cost of iron	28.1149 EUR	ironcost
Surface area of moulds	0.5329 m2	woodS
Total cost of moulds	84.4114 EUR	woodcost

Revolutions per minute (RPM)
0
343.949045

I_RMS (A)
0
17.5

Output files

Octave/Matlab variable file:

simulation-7803.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

1.50m

Cut-in wind speed:

3.00m/s

Nominal wind speed:

12.00m/s

Cut-in TSR:

8.75

Nominal TSR:

4.50

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Outer diameter:

430.00mm

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

85mm

Magnet width:

65mm

Magnet thickness:

20mm

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Triangular

Winder bolt size:

8.00mm

Winding fill factor:

0.75

Current at nominal wind speed:

17.50A

Stator thickness:

13mm

Number of turns per coil:

109

Copper wire diameter:

1.40mm

Number of wires at hand:

Coil leg width:

34mm

Stator nominal temperature:

57.70C°

System Inputs

System voltage:

58.00V

Transmission cable losses:

10.00%

Rectifier losses:

10.00%

Financial

Copper price:

12.00€/kg

Iron price:

1.00€/kg

Resin price:

11.23€/kg

Plywood price:

17.60 €/m²

Simulation Inputs

Simulation Radius:

Average radius

Simulation step:

Current step:

RPM Step:

Mesh size:

Automesh

Constants

Copper resistivity:

1.678E-8 Ω·m

Copper density:

8.94g/cm³

Iron density:

7.87g/cm³

Resin density:

1.36g/cm³