Clone of PMA-OPT-1 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by AHMEDNA8 on Fri, 24/04/2020 - 15:43

Duration:

00:01:07

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	133.758 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	557.465 RPM	n_nom
Nominal tip speed ratio	11.6696	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	8 mm	hr
Magnet width-to-pole pitch ratio	0.284158	ai
Inner-to-outer magnet radius	0.951605	kd
Flux density in airgap	0.428137 T	Bmax
Flux density on magnet surface	0.595348 T	Bmg
First harmonic of flux density in airgap	0.254156 T	Bp
Flux per pole (Calculated)	0.000238158 Wb	Flux_pole
Magnets on a rotor disk	36	magnet_num
Distance between magnets	48.6382 mm	dist_magnet_Rin
Magnet mass	1296 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	2400 mm3	Vmag
Volume of all magnets	172800 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	826.778 mm	Dout
Average radius	403.268 mm	Ravg
Inner radius	393.268 mm	Rin
Outer radius	413.389 mm	Rout
Effective outer radius	413.268 mm	Rout_eff
Mass of rotor disks	67.6024 kgr	BackIronMass
Volume of rotor disks	8589.89 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.858173 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	14 mm	tw
Number of phases	3	nphase
Number of coils per phase	9	q
Total number of coils in stator	27	coil_num
Number of turns per coil	14	Nc
Copper wire diameter	1.8 mm	dc
Number of wires at hand	6	No_wires_at_hand
Winding fill factor	0.42	kf
Copper wire cross-sectional area	15.24 mm2	sc
Copper wire cross-sectional area (Calculated)	14.9387 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.54 mm²	sc_multi_wires
Copper wire diameter (Calculated)	4.36236 mm	dc_theor
Coil leg width	36.6486 mm	wc
Average length of coil turn	172.779 mm	lavg
Stator nominal temperature	30.6392 C°	tc_real
Stator surface area	3419.33 cm²	stator_surface_area
Heat coefficient	0.0440334	cq_real
Current density	2.94069 A	Jmax_real
Resistivity of copper at nominal temperature	1.74928E-8 Ohm.m	pt
Resistance of a single coil	0.00277646 Ohm	Rc
Phase resistance	0.0249882 Ohm	Rphase
Phase inductance	6.97443E-5 H	Ls
Nagaoka constant	0.18542	Kn
Winding coefficient	0.95	kw
Volume of a single coil	88649.4 mm3	coil_volume
Weight of a single coil	376.646 g	coil_weight_constr
Coil hole at Ravg	20 mm	coil_hole_Ravg
Coil hole at Rin	17.719 mm	coil_hole_Rin_constr
Coil hole at Rout	22.372 mm	coil_hole_Rout_constr
Coil mass for construction	10.5461 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	5.132 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	21.171 V	EMF_nom
Current at the nominal wind speed	44.8161 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	167.239 Hz	fnom
Generator power (Calculated)	1517.98 W	Pnom
Copper losses (Calculated)	150.565 W	Pcopper
Eddy current losses (Calculated)	1095.94 W	Peddy
Generator efficiency (Calculated)	0.529345	efficiency_real
AC Power at the rectifier (Calculated)	1366.18 W	Pnom_rect
DC Power at the batteries (Calculated)	1229.56 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)	103.17 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	648.344 EUR	Totalcost
Total generator mass	83.6317 kgr	TotalMass
Total generator volume	25.7697 dm3	TotalVolume
Blade rotor mass	15.2925 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	152.148 EUR	Magcost
Magnet shipping cost	10.4348 EUR	shippingcost
Copper mass	8.89826 kgr	mcu
Cost of copper	131.338 EUR	coppercost
Resin mass	5.83496 kgr	resinmass
Cost of resin	80.5977 EUR	resincost
Resin volume	4290.41 cm3	ResinVolume
Total mass of one generator rotor	34.4492 kgr	TotalMassRotor
Cost of iron	83.151 EUR	ironcost
Surface area of moulds	1.26963 m2	woodS
Total cost of moulds	201.109 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6289.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.00m

Aerodynamic coefficient:

0.37

Cut-in wind speed:

3.50m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

8.00

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:

20mm

Magnet width:

20mm

Magnet thickness:

6mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

8mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

3.00A/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:

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