Clone of 3.6m 30x20x10 N45 24 pole - Keyhole | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by gbroques on Wed, 07/08/2024 - 02:17

Duration:

00:00:38

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	139.331 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	224.519 RPM	n_nom
Nominal tip speed ratio	4.22994	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.303435	ai
Inner-to-outer magnet radius	0.887542	kd
Flux density in airgap	0.51959 T	Bmax
Flux density on magnet surface	0.682884 T	Bmg
First harmonic of flux density in airgap	0.336914 T	Bp
Flux per pole (Calculated)	0.000410098 Wb	Flux_pole
Magnets on a rotor disk	24	magnet_num
Distance between magnets	41.985 mm	dist_magnet_Rin
Magnet mass	2160 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	6000 mm3	Vmag
Volume of all magnets	288000 mm3	VolumeMagnet
Remanent magnetic flux density	1.35 T	Br
Magnetic coercivity	1041910 A/m	Hc
Maximum Energy Product	366 KJ/m³	BHmax
Outer diameter	533.905 mm	Dout
Average radius	251.765 mm	Ravg
Inner radius	236.765 mm	Rin
Outer radius	266.952 mm	Rout
Effective outer radius	266.765 mm	Rout_eff
Mass of rotor disks	35.2389 kgr	BackIronMass
Volume of rotor disks	4477.63 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.831376 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	6	q
Total number of coils in stator	18	coil_num
Number of turns per coil	35	Nc
Copper wire diameter	1.7 mm	dc
Number of wires at hand	3	No_wires_at_hand
Winding fill factor	0.55	kf
Copper wire cross-sectional area	6.81 mm2	sc
Copper wire cross-sectional area (Calculated)	6.25693 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.27 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.82323 mm	dc_theor
Coil leg width	33.669 mm	wc
Average length of coil turn	186.177 mm	lavg
Stator nominal temperature	61.4745 C°	tc_real
Stator surface area	2256.63 cm²	stator_surface_area
Heat coefficient	0.210248	cq_real
Current density	5.51271 A	Jmax_real
Resistivity of copper at nominal temperature	1.95455E-8 Ohm.m	pt
Resistance of a single coil	0.0187023 Ohm	Rc
Phase resistance	0.112214 Ohm	Rphase
Phase inductance	0.000350546 H	Ls
Nagaoka constant	0.178874	Kn
Winding coefficient	0.95	kw
Volume of a single coil	81489.3 mm3	coil_volume
Weight of a single coil	419.385 g	coil_weight_constr
Coil hole at Ravg	20 mm	coil_hole_Ravg
Coil hole at Rin	14.8062 mm	coil_hole_Rin_constr
Coil hole at Rout	25.2711 mm	coil_hole_Rout_constr
Coil mass for construction	7.96832 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	10.264 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	16.3139 V	EMF_nom
Current at the nominal wind speed	37.5416 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	44.9038 Hz	fnom
Generator power (Calculated)	1271.58 W	Pnom
Copper losses (Calculated)	474.452 W	Pcopper
Eddy current losses (Calculated)	54.4955 W	Peddy
Generator efficiency (Calculated)	0.696346	efficiency_real
AC Power at the rectifier (Calculated)	1144.42 W	Pnom_rect
DC Power at the batteries (Calculated)	1029.98 W	Pnom_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	5	No_bolts_hub
Mass of bearing hub	8344.46 g	BearingHubMass
Rotational losses (Calculated)	25.5465 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	534.492 EUR	Totalcost
Total generator mass	48.2175 kgr	TotalMass
Total generator volume	13.209 dm3	TotalVolume
Blade rotor mass	11.1482 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	224.798 EUR	Magcost
Magnet shipping cost	17.3913 EUR	shippingcost
Copper mass	7.14088 kgr	mcu
Cost of copper	105.399 EUR	coppercost
Resin mass	3.67767 kgr	resinmass
Cost of resin	50.7993 EUR	resincost
Resin volume	2704.17 cm3	ResinVolume
Total mass of one generator rotor	18.6995 kgr	TotalMassRotor
Cost of iron	43.3439 EUR	ironcost
Surface area of moulds	0.695397 m2	woodS
Total cost of moulds	110.151 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-9249.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

1.80m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

3.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

8.75

Design TSR:

7.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N45

Number of generator poles:

Magnet length:

30mm

Magnet width:

20mm

Magnet thickness:

10mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

User defined

Winding fill factor:

0.55

Stator thickness:

User defined

Stator thickness:

13mm

Current density:

6.00A/mm2

System Inputs

System voltage:

24.00V

Nominal voltage:

24.00V

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