Clone of PMA-1.004 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by AHMEDNA8 on Fri, 31/07/2020 - 17:51

Duration:

00:00:34

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	117.038 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	321.655 RPM	n_nom
Nominal tip speed ratio	8.41664	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.514988	ai
Inner-to-outer magnet radius	0.68626	kd
Flux density in airgap	0.596857 T	Bmax
Flux density on magnet surface	0.75906 T	Bmg
First harmonic of flux density in airgap	0.528008 T	Bp
Flux per pole (Calculated)	0.000878818 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	14.5128 mm	dist_magnet_Rin
Magnet mass	3588 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	14950 mm3	Vmag
Volume of all magnets	478400 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	294.301 mm	Dout
Average radius	123.618 mm	Ravg
Inner radius	100.618 mm	Rin
Outer radius	147.15 mm	Rout
Effective outer radius	146.618 mm	Rout_eff
Mass of rotor disks	10.7072 kgr	BackIronMass
Volume of rotor disks	1360.51 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.20596 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	18 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	22	Nc
Copper wire diameter	1.8 mm	dc
Number of wires at hand	3	No_wires_at_hand
Winding fill factor	0.48	kf
Copper wire cross-sectional area	7.62 mm2	sc
Copper wire cross-sectional area (Calculated)	6.9438 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.54 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.97416 mm	dc_theor
Coil leg width	19.5968 mm	wc
Average length of coil turn	189.843 mm	lavg
Stator nominal temperature	52.6399 C°	tc_real
Stator surface area	892.874 cm²	stator_surface_area
Heat coefficient	0.16882	cq_real
Current density	4.5563 A	Jmax_real
Resistivity of copper at nominal temperature	1.90124E-8 Ohm.m	pt
Resistance of a single coil	0.0104207 Ohm	Rc
Phase resistance	0.041683 Ohm	Rphase
Phase inductance	0.000106704 H	Ls
Nagaoka constant	0.275271	Kn
Winding coefficient	0.95	kw
Volume of a single coil	66965.6 mm3	coil_volume
Weight of a single coil	310.383 g	coil_weight_constr
Coil hole at Ravg	25 mm	coil_hole_Ravg
Coil hole at Rin	12.981 mm	coil_hole_Rin_constr
Coil hole at Rout	36.9769 mm	coil_hole_Rout_constr
Coil mass for construction	4.03498 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	5.132 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	13.992 V	EMF_nom
Current at the nominal wind speed	34.719 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	42.8873 Hz	fnom
Generator power (Calculated)	1175.97 W	Pnom
Copper losses (Calculated)	150.735 W	Pcopper
Eddy current losses (Calculated)	99.3294 W	Peddy
Generator efficiency (Calculated)	0.81077	efficiency_real
AC Power at the rectifier (Calculated)	1058.38 W	Pnom_rect
DC Power at the batteries (Calculated)	952.539 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)	24.4021 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	569.002 EUR	Totalcost
Total generator mass	20.4246 kgr	TotalMass
Total generator volume	4.62574 dm3	TotalVolume
Blade rotor mass	15.2925 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	411.988 EUR	Magcost
Magnet shipping cost	28.8889 EUR	shippingcost
Copper mass	3.41421 kgr	mcu
Cost of copper	50.3937 EUR	coppercost
Resin mass	2.7152 kgr	resinmass
Cost of resin	37.5047 EUR	resincost
Resin volume	1996.47 cm3	ResinVolume
Total mass of one generator rotor	7.14761 kgr	TotalMassRotor
Cost of iron	13.1699 EUR	ironcost
Surface area of moulds	0.353193 m2	woodS
Total cost of moulds	55.9458 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6489.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.00m

Aerodynamic coefficient:

0.37

Cut-in wind speed:

2.80m/s

Nominal wind speed:

8.00m/s

Cut-in TSR:

8.75

Design TSR:

6.50

Air density:

1.225kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N52

Number of generator poles:

Magnet length:

46mm

Magnet width:

25mm

Magnet thickness:

13mm

Rotor disk thickness:

Calculated

Mechanical clearance:

2.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

5.00A/mm2

System Inputs

System voltage:

12.00V

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