3m pour mada try13 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by tieole on Sat, 25/02/2023 - 16:19

Duration:

00:01:08

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	114.65 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	252.541 RPM	n_nom
Nominal tip speed ratio	7.92979	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.153914	ai
Inner-to-outer magnet radius	0.886007	kd
Flux density in airgap	0.490369 T	Bmax
Flux density on magnet surface	0.643699 T	Bmg
First harmonic of flux density in airgap	0.175118 T	Bp
Flux per pole (Calculated)	0.000643707 Wb	Flux_pole
Magnets on a rotor disk	20	magnet_num
Distance between magnets	102.089 mm	dist_magnet_Rin
Magnet mass	3000 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	10000 mm3	Vmag
Volume of all magnets	400000 mm3	VolumeMagnet
Remanent magnetic flux density	1.265 T	Br
Magnetic coercivity	982324 A/m	Hc
Maximum Energy Product	326 KJ/m³	BHmax
Outer diameter	877.471 mm	Dout
Average radius	413.622 mm	Ravg
Inner radius	388.622 mm	Rin
Outer radius	438.736 mm	Rout
Effective outer radius	438.622 mm	Rout_eff
Mass of rotor disks	95.1832 kgr	BackIronMass
Volume of rotor disks	12094.4 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.783778 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	5	q
Total number of coils in stator	15	coil_num
Number of turns per coil	79	Nc
Copper wire diameter	1.7 mm	dc
Number of wires at hand	3	No_wires_at_hand
Winding fill factor	0.58	kf
Copper wire cross-sectional area	6.81 mm2	sc
Copper wire cross-sectional area (Calculated)	6.38987 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.27 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.85306 mm	dc_theor
Coil leg width	71.3515 mm	wc
Average length of coil turn	364.044 mm	lavg
Stator nominal temperature	68.6398 C°	tc_real
Stator surface area	7792.51 cm²	stator_surface_area
Heat coefficient	0.241484	cq_real
Current density	5.62985 A	Jmax_real
Resistivity of copper at nominal temperature	2.02094E-8 Ohm.m	pt
Resistance of a single coil	0.0853468 Ohm	Rc
Phase resistance	0.426734 Ohm	Rphase
Phase inductance	0.0031762 H	Ls
Nagaoka constant	0.0998436	Kn
Winding coefficient	0.95	kw
Volume of a single coil	337676 mm3	coil_volume
Weight of a single coil	1795.24 g	coil_weight_constr
Coil hole at Ravg	20 mm	coil_hole_Ravg
Coil hole at Rin	20 mm	coil_hole_Rin_constr
Coil hole at Rout	20 mm	coil_hole_Rout_constr
Coil mass for construction	28.7239 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	20.528 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	45.1476 V	EMF_nom
Current at the nominal wind speed	38.3392 A	Iac_nom
Terminal voltage at the nominal wind speed	27.2851 V	V_term_line
Nominal frequency	42.0902 Hz	fnom
Generator power (Calculated)	3138.28 W	Pnom
Copper losses (Calculated)	1881.77 W	Pcopper
Eddy current losses (Calculated)	40.9036 W	Peddy
Generator efficiency (Calculated)	0.610106	efficiency_real
AC Power at the rectifier (Calculated)	2824.45 W	Pnom_rect
DC Power at the batteries (Calculated)	2542 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)	82.8769 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	1258.77 EUR	Totalcost
Total generator mass	133.226 kgr	TotalMass
Total generator volume	35.6786 dm3	TotalVolume
Blade rotor mass	51.6121 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	283.955 EUR	Magcost
Magnet shipping cost	24.1546 EUR	shippingcost
Copper mass	26.2637 kgr	mcu
Cost of copper	516.87 EUR	coppercost
Resin mass	8.7788 kgr	resinmass
Cost of resin	121.261 EUR	resincost
Resin volume	6455 cm3	ResinVolume
Total mass of one generator rotor	49.0916 kgr	TotalMassRotor
Cost of iron	117.075 EUR	ironcost
Surface area of moulds	1.38644 m2	woodS
Total cost of moulds	219.612 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-8133.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

3.00m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

4.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

9.00

Design TSR:

6.00

Air density:

1.225kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N40

Number of generator poles:

Magnet length:

50mm

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:

Rectangular

Winding fill factor:

User defined

Winding fill factor:

0.58

Stator thickness:

User defined

Stator thickness:

13mm

Current density:

6.00A/mm2

System Inputs

System voltage:

48.00V

Nominal voltage:

58.00V

Transmission cable losses:

10.00%

Rectifier losses:

10.00%

Financial

Copper price:

16.00€/kg

Iron price:

1.00€/kg

Resin price:

11.23€/kg

Plywood price:

17.60 €/m²

Simulation Inputs

Also run UserAFPM:

true

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