Clone of pma88 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by AHMEDNA8 on Sat, 19/09/2020 - 21:43

Duration:

00:00:01

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	208.997 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	691.775 RPM	n_nom
Nominal tip speed ratio	9.65411	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.848793	ai
Inner-to-outer magnet radius	0.538475	kd
Flux density in airgap	0.54 T	Bmax
Flux density on magnet surface	0.62 T	Bmg
First harmonic of flux density in airgap	0.4 T	Bp
Flux per pole (Calculated)	0.0006975 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	-4.3822 mm	dist_magnet_Rin
Magnet mass	2700 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	11250 mm3	Vmag
Volume of all magnets	360000 mm3	VolumeMagnet
Remanent magnetic flux density	1.45 T	Br
Magnetic coercivity	1120020 A/m	Hc
Maximum Energy Product	422 KJ/m³	BHmax
Outer diameter	196.602 mm	Dout
Average radius	75.0029 mm	Ravg
Inner radius	52.5029 mm	Rin
Outer radius	98.3009 mm	Rout
Effective outer radius	97.5029 mm	Rout_eff
Mass of rotor disks	4.77826 kgr	BackIronMass
Volume of rotor disks	607.148 cm3	BackIronVolume

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	13 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	13	Nc
Copper wire diameter	1.5 mm	dc
Number of wires at hand	2	No_wires_at_hand
Winding fill factor	0.52	kf
Copper wire cross-sectional area	3.54 mm2	sc
Copper wire cross-sectional area (Calculated)	3.33797 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	1.77 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.06209 mm	dc_theor
Coil leg width	6.87577 mm	wc
Average length of coil turn	152.049 mm	lavg
Stator nominal temperature	49.9817 C°	tc_real
Stator surface area	250.908 cm²	stator_surface_area
Heat coefficient	0.155601	cq_real
Current density	4.71465 A	Jmax_real
Resistivity of copper at nominal temperature	2.09179E-8 Ohm.m	pt
Resistance of a single coil	0.01168 Ohm	Rc
Phase resistance	0.0467198 Ohm	Rphase
Phase inductance	3.74447E-5 H	Ls
Nagaoka constant	0.311474	Kn
Winding coefficient	0.95	kw
Volume of a single coil	13590.9 mm3	coil_volume
Weight of a single coil	72.1796 g	coil_weight_constr
Coil hole at Ravg	25 mm	coil_hole_Ravg
Coil hole at Rin	13.2039 mm	coil_hole_Rin_constr
Coil hole at Rout	36.5828 mm	coil_hole_Rout_constr
Coil mass for construction	0.938335 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	4.27667 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	14.113 V	EMF_nom
Current at the nominal wind speed	16.6899 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	92.2367 Hz	fnom
Generator power (Calculated)	565.306 W	Pnom
Copper losses (Calculated)	39.0417 W	Pcopper
Eddy current losses (Calculated)	32.0134 W	Peddy
Generator efficiency (Calculated)	0.86121	efficiency_real
AC Power at the rectifier (Calculated)	508.776 W	Pnom_rect
DC Power at the batteries (Calculated)	457.898 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)	20.0478 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	379.989 EUR	Totalcost
Total generator mass	9.20677 kgr	TotalMass
Total generator volume	1.66966 dm3	TotalVolume
Blade rotor mass	3.30317 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	310.462 EUR	Magcost
Magnet shipping cost	21.7391 EUR	shippingcost
Copper mass	0.750668 kgr	mcu
Cost of copper	11.0799 EUR	coppercost
Resin mass	0.977843 kgr	resinmass
Cost of resin	13.5068 EUR	resincost
Resin volume	719.002 cm3	ResinVolume
Total mass of one generator rotor	3.73913 kgr	TotalMassRotor
Cost of iron	5.87726 EUR	ironcost
Surface area of moulds	0.246613 m2	woodS
Total cost of moulds	39.0636 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6504.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

1.20m

Aerodynamic coefficient:

0.35

Cut-in wind speed:

3.00m/s

Nominal wind speed:

9.00m/s

Cut-in TSR:

8.75

Design TSR:

7.00

Air density:

1.225kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N52

Number of generator poles:

Magnet length:

45mm

Magnet width:

25mm

Magnet thickness:

10mm

Rotor disk thickness:

Calculated

Mechanical clearance:

1.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

5.00A/mm2

System Inputs

System voltage:

10.00V

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