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

Submitted by AHMEDNA8 on Mon, 27/04/2020 - 08:48

Duration:

00:00:58

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)	228.156 RPM	n_nom
Nominal tip speed ratio	7.9601	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	8 mm	hr
Magnet width-to-pole pitch ratio	0.216488	ai
Inner-to-outer magnet radius	0.918452	kd
Flux density in airgap	0.613483 T	Bmax
Flux density on magnet surface	0.75988 T	Bmg
First harmonic of flux density in airgap	0.289909 T	Bp
Flux per pole (Calculated)	0.000304303 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	68.4568 mm	dist_magnet_Rin
Magnet mass	960 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	4000 mm3	Vmag
Volume of all magnets	128000 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	490.915 mm	Dout
Average radius	235.254 mm	Ravg
Inner radius	225.254 mm	Rin
Outer radius	245.457 mm	Rout
Effective outer radius	245.254 mm	Rout_eff
Mass of rotor disks	23.834 kgr	BackIronMass
Volume of rotor disks	3028.46 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.17257 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	4	q
Total number of coils in stator	12	coil_num
Number of turns per coil	65	Nc
Copper wire diameter	1.8 mm	dc
Number of wires at hand	2	No_wires_at_hand
Winding fill factor	0.5	kf
Copper wire cross-sectional area	5.08 mm2	sc
Copper wire cross-sectional area (Calculated)	5.04605 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.54 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.53537 mm	dc_theor
Coil leg width	51.308 mm	wc
Average length of coil turn	215.591 mm	lavg
Stator nominal temperature	38.1449 C°	tc_real
Stator surface area	2654.78 cm²	stator_surface_area
Heat coefficient	0.0912208	cq_real
Current density	3.97327 A	Jmax_real
Resistivity of copper at nominal temperature	1.79571E-8 Ohm.m	pt
Resistance of a single coil	0.0495355 Ohm	Rc
Phase resistance	0.198142 Ohm	Rphase
Phase inductance	0.000842814 H	Ls
Nagaoka constant	0.139484	Kn
Winding coefficient	0.95	kw
Volume of a single coil	143800 mm3	coil_volume
Weight of a single coil	656.006 g	coil_weight_constr
Coil hole at Ravg	20 mm	coil_hole_Ravg
Coil hole at Rin	14.8238 mm	coil_hole_Rin_constr
Coil hole at Rout	25.2872 mm	coil_hole_Rout_constr
Coil mass for construction	8.52807 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	5.132 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	10.1536 V	EMF_nom
Current at the nominal wind speed	20.1842 A	Iac_nom
Terminal voltage at the nominal wind speed	5.6452 V	V_term_line
Nominal frequency	30.4208 Hz	fnom
Generator power (Calculated)	341.832 W	Pnom
Copper losses (Calculated)	242.171 W	Pcopper
Eddy current losses (Calculated)	10.8212 W	Peddy
Generator efficiency (Calculated)	0.554091	efficiency_real
AC Power at the rectifier (Calculated)	307.649 W	Pnom_rect
DC Power at the batteries (Calculated)	276.884 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)	22.0996 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	398.423 EUR	Totalcost
Total generator mass	35.7448 kgr	TotalMass
Total generator volume	10.0318 dm3	TotalVolume
Blade rotor mass	15.2925 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	111.525 EUR	Magcost
Magnet shipping cost	7.72947 EUR	shippingcost
Copper mass	7.63708 kgr	mcu
Cost of copper	112.723 EUR	coppercost
Resin mass	3.3138 kgr	resinmass
Cost of resin	45.7731 EUR	resincost
Resin volume	2436.61 cm3	ResinVolume
Total mass of one generator rotor	12.397 kgr	TotalMassRotor
Cost of iron	29.3158 EUR	ironcost
Surface area of moulds	0.625546 m2	woodS
Total cost of moulds	99.0865 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6331.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.00m

Aerodynamic coefficient:

0.37

Cut-in wind speed:

3.00m/s

Nominal wind speed:

6.00m/s

Cut-in TSR:

8.00

Design TSR:

6.00

Air density:

1.225kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N52

Number of generator poles:

Magnet length:

20mm

Magnet width:

20mm

Magnet thickness:

10mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

8mm

Mechanical clearance:

2.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

Calculated

Stator thickness:

User defined

Stator thickness:

13mm

Current density:

4.00A/mm2

System Inputs

System voltage:

12.00V

Nominal voltage:

12.00V

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