Clone of Propel-E 450 'Low Speed' | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by fromwastetowind on Sun, 06/04/2025 - 07:11

Duration:

00:01:19

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	19.1083 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	73.8873 RPM	n_nom
Nominal tip speed ratio	0.773354	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.78931	ai
Inner-to-outer magnet radius	0.779384	kd
Flux density in airgap	0.262938 T	Bmax
Flux density on magnet surface	0.25553 T	Bmg
First harmonic of flux density in airgap	0.279972 T	Bp
Flux per pole (Calculated)	0.00126679 Wb	Flux_pole
Magnets on a rotor disk	20	magnet_num
Distance between magnets	7.6894 mm	dist_magnet_Rin
Magnet mass	32340 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	161700 mm3	Vmag
Volume of all magnets	6468000 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	638.435 mm	Dout
Average radius	282.293 mm	Ravg
Inner radius	247.293 mm	Rin
Outer radius	319.218 mm	Rout
Effective outer radius	317.293 mm	Rout_eff
Mass of rotor disks	50.3881 kgr	BackIronMass
Volume of rotor disks	6402.56 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.12214 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	16 mm	tw
Number of phases	3	nphase
Number of coils per phase	5	q
Total number of coils in stator	15	coil_num
Number of turns per coil	503	Nc
Copper wire diameter	0.71 mm	dc
Number of wires at hand	1	No_wires_at_hand
Winding fill factor	0.75	kf
Copper wire cross-sectional area	0.4 mm2	sc
Copper wire cross-sectional area (Calculated)	0.190346 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	0.4 mm²	sc_multi_wires
Copper wire diameter (Calculated)	0.492422 mm	dc_theor
Coil leg width	16.7667 mm	wc
Average length of coil turn	332.647 mm	lavg
Stator nominal temperature	37.6138 C°	tc_real
Stator surface area	1673.22 cm²	stator_surface_area
Heat coefficient	0.0880757	cq_real
Current density	2.85519 A	Jmax_real
Resistivity of copper at nominal temperature	1.80067E-8 Ohm.m	pt
Resistance of a single coil	7.53228 Ohm	Rc
Phase resistance	37.6614 Ohm	Rphase
Phase inductance	0.176403 H	Ls
Nagaoka constant	0.201629	Kn
Winding coefficient	0.95	kw
Volume of a single coil	89238.2 mm3	coil_volume
Weight of a single coil	600.721 g	coil_weight_constr
Coil hole at Ravg	70 mm	coil_hole_Ravg
Coil hole at Rin	70 mm	coil_hole_Rin_constr
Coil hole at Rout	70 mm	coil_hole_Rout_constr
Coil mass for construction	9.61154 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	42.7667 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	165.512 V	EMF_nom
Current at the nominal wind speed	1.14208 A	Iac_nom
Terminal voltage at the nominal wind speed	117.608 V	V_term_line
Nominal frequency	12.3146 Hz	fnom
Generator power (Calculated)	402.954 W	Pnom
Copper losses (Calculated)	147.37 W	Pcopper
Eddy current losses (Calculated)	0.0794508 W	Peddy
Generator efficiency (Calculated)	0.715143	efficiency_real
AC Power at the rectifier (Calculated)	362.658 W	Pnom_rect
DC Power at the batteries (Calculated)	326.392 W	Pnom_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 (Calculated)	13.0556 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	822.78 EUR	Totalcost
Total generator mass	92.9451 kgr	TotalMass
Total generator volume	34.2537 dm3	TotalVolume
Blade rotor mass	1.91156 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	471.68 EUR	Magcost
Magnet shipping cost	390.58 EUR	shippingcost
Copper mass	8.97513 kgr	mcu
Cost of copper	132.473 EUR	coppercost
Resin mass	1.24183 kgr	resinmass
Cost of resin	17.1532 EUR	resincost
Resin volume	913.107 cm3	ResinVolume
Total mass of one generator rotor	41.3641 kgr	TotalMassRotor
Cost of iron	61.9774 EUR	ironcost
Surface area of moulds	0.88066 m2	woodS
Total cost of moulds	139.497 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-9750.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

1.00m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

2.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

1.00

Design TSR:

2.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

70mm

Magnet width:

70mm

Magnet thickness:

33mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

2.50mm

Generator Stator Inputs

Select coil type:

Rectangular

Winding fill factor:

User defined

Winding fill factor:

0.75

Stator thickness:

Calculated

Current density:

6.00A/mm2

System Inputs

System voltage:

100.00V

Nominal voltage:

250.00V

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

Also run UserAFPM:

false

Constants

Copper resistivity:

1.678E-8 Ω·m

Copper density:

8.94g/cm³

Iron density:

7.87g/cm³

Resin density:

1.36g/cm³