Clone of Star Shape 16 pole Ferrite | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by gbroques on Sat, 21/12/2024 - 22:20

Duration:

00:01:50

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	83.5987 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	135.879 RPM	n_nom
Nominal tip speed ratio	4.26659	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.769513	ai
Inner-to-outer magnet radius	0.63047	kd
Flux density in airgap	0.253899 T	Bmax
Flux density on magnet surface	0.247323 T	Bmg
First harmonic of flux density in airgap	0.276972 T	Bp
Flux per pole (Calculated)	0.00376422 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	0.5 mm	dist_magnet_Rin
Magnet mass	60000 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	375000 mm3	Vmag
Volume of all magnets	12000000 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	817.978 mm	Dout
Average radius	330.921 mm	Ravg
Inner radius	255.921 mm	Rin
Outer radius	408.989 mm	Rout
Effective outer radius	405.921 mm	Rout_eff
Mass of rotor disks	82.7138 kgr	BackIronMass
Volume of rotor disks	10510 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.37647 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	15 mm	tw
Number of phases	3	nphase
Number of coils per phase	4	q
Total number of coils in stator	12	coil_num
Number of turns per coil	20	Nc
Copper wire diameter	1.8 mm	dc
Number of wires at hand	7	No_wires_at_hand
Winding fill factor	0.55	kf
Copper wire cross-sectional area	17.78 mm2	sc
Copper wire cross-sectional area (Calculated)	16.6718 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.54 mm²	sc_multi_wires
Copper wire diameter (Calculated)	4.60847 mm	dc_theor
Coil leg width	43.103 mm	wc
Average length of coil turn	566.14 mm	lavg
Stator nominal temperature	74.3664 C°	tc_real
Stator surface area	5856.56 cm²	stator_surface_area
Heat coefficient	0.265186	cq_real
Current density	5.62603 A	Jmax_real
Resistivity of copper at nominal temperature	2.03106E-8 Ohm.m	pt
Resistance of a single coil	0.0129343 Ohm	Rc
Phase resistance	0.0517373 Ohm	Rphase
Phase inductance	0.000381008 H	Ls
Nagaoka constant	0.111444	Kn
Winding coefficient	0.701995	kw
Volume of a single coil	366035 mm3	coil_volume
Weight of a single coil	1979.77 g	coil_weight_constr
Coil hole at Ravg	54 mm	coil_hole_Ravg
Coil hole at Rin	8 mm	coil_hole_Rin_constr
Coil hole at Rout	100 mm	coil_hole_Rout_constr
Coil mass for construction	25.7371 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	10.264 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	17.0073 V	EMF_nom
Current at the nominal wind speed	100.031 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	18.1172 Hz	fnom
Generator power (Calculated)	3388.17 W	Pnom
Copper losses (Calculated)	1553.08 W	Pcopper
Eddy current losses (Calculated)	78.0223 W	Peddy
Generator efficiency (Calculated)	0.667493	efficiency_real
AC Power at the rectifier (Calculated)	3049.35 W	Pnom_rect
DC Power at the batteries (Calculated)	2744.41 W	Pnom_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	6	No_bolts_hub
Mass of bearing hub	14290.7 g	BearingHubMass
Rotational losses (Calculated)	56.6931 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	1522.16 EUR	Totalcost
Total generator mass	167.633 kgr	TotalMass
Total generator volume	47.8205 dm3	TotalVolume
Blade rotor mass	51.6121 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	857.774 EUR	Magcost
Magnet shipping cost	724.638 EUR	shippingcost
Copper mass	21.5975 kgr	mcu
Cost of copper	318.78 EUR	coppercost
Resin mass	3.32207 kgr	resinmass
Cost of resin	45.8874 EUR	resincost
Resin volume	2442.7 cm3	ResinVolume
Total mass of one generator rotor	71.3569 kgr	TotalMassRotor
Cost of iron	101.738 EUR	ironcost
Surface area of moulds	1.24987 m2	woodS
Total cost of moulds	197.98 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-9564.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

3.00m

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:

Ferrite C8

Number of generator poles:

Magnet length:

150mm

Magnet width:

100mm

Magnet thickness:

25mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Triangular

Winder bolt size:

8.00mm

Winding fill factor:

User defined

Winding fill factor:

0.55

Stator thickness:

User defined

Stator thickness:

15mm

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