Clone of PMA-OPT-2 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by AHMEDNA8 on Fri, 24/04/2020 - 18:23

Duration:

00:00:01

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)	158.081 RPM	n_nom
Nominal tip speed ratio	3.30917	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	8 mm	hr
Magnet width-to-pole pitch ratio	0.0516721	ai
Inner-to-outer magnet radius	0.979912	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)	0.000248 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	363.13 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	1991.36 mm	Dout
Average radius	985.631 mm	Ravg
Inner radius	975.631 mm	Rin
Outer radius	995.681 mm	Rout
Effective outer radius	995.631 mm	Rout_eff
Mass of rotor disks	392.18 kgr	BackIronMass
Volume of rotor disks	49832.3 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	80	Nc
Copper wire diameter	1.9 mm	dc
Number of wires at hand	8	No_wires_at_hand
Winding fill factor	0.57	kf
Copper wire cross-sectional area	22.72 mm2	sc
Copper wire cross-sectional area (Calculated)	44.8193 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.84 mm²	sc_multi_wires
Copper wire diameter (Calculated)	7.5561 mm	dc_theor
Coil leg width	245.29 mm	wc
Average length of coil turn	850.211 mm	lavg
Stator nominal temperature	75.9175 C°	tc_real
Stator surface area	50051.6 cm²	stator_surface_area
Heat coefficient	0.271434	cq_real
Current density	5.91805 A	Jmax_real
Resistivity of copper at nominal temperature	2.09179E-8 Ohm.m	pt
Resistance of a single coil	0.062622 Ohm	Rc
Phase resistance	0.250488 Ohm	Rphase
Phase inductance	0.00531196 H	Ls
Nagaoka constant	0.0373168	Kn
Winding coefficient	0.95	kw
Volume of a single coil	2711130 mm3	coil_volume
Weight of a single coil	14160.8 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	184.09 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	5.132 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	7.0565 V	EMF_nom
Current at the nominal wind speed	134.458 A	Iac_nom
Terminal voltage at the nominal wind speed	5.6452 V	V_term_line
Nominal frequency	21.0775 Hz	fnom
Generator power (Calculated)	2277.13 W	Pnom
Copper losses (Calculated)	13585.7 W	Pcopper
Eddy current losses (Calculated)	824.314 W	Peddy
Generator efficiency (Calculated)	0.135391	efficiency_real
AC Power at the rectifier (Calculated)	2049.42 W	Pnom_rect
DC Power at the batteries (Calculated)	1844.47 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)	131.769 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	4185.61 EUR	Totalcost
Total generator mass	581.59 kgr	TotalMass
Total generator volume	171.298 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	165.784 kgr	mcu
Cost of copper	2446.98 EUR	coppercost
Resin mass	22.6654 kgr	resinmass
Cost of resin	313.074 EUR	resincost
Resin volume	16665.7 cm3	ResinVolume
Total mass of one generator rotor	196.57 kgr	TotalMassRotor
Cost of iron	482.381 EUR	ironcost
Surface area of moulds	5.25034 m2	woodS
Total cost of moulds	831.654 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6301.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.00m

Aerodynamic coefficient:

0.37

Cut-in wind speed:

3.00m/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:

10mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

8mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Rectangular

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

3.00A/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:

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