pma_ferite | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by AHMEDNA8 on Sat, 25/04/2020 - 07:47

Duration:

00:01:32

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	121.815 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	539.362 RPM	n_nom
Nominal tip speed ratio	11.2906	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	8 mm	hr
Magnet width-to-pole pitch ratio	0.148544	ai
Inner-to-outer magnet radius	0.900238	kd
Flux density in airgap	0.142772 T	Bmax
Flux density on magnet surface	0.194682 T	Bmg
First harmonic of flux density in airgap	0.0558422 T	Bp
Flux per pole (Calculated)	0.000219026 Wb	Flux_pole
Magnets on a rotor disk	16	magnet_num
Distance between magnets	134.465 mm	dist_magnet_Rin
Magnet mass	3600 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	22500 mm3	Vmag
Volume of all magnets	720000 mm3	VolumeMagnet
Remanent magnetic flux density	0.39 T	Br
Magnetic coercivity	227950 A/m	Hc
Maximum Energy Product	30 KJ/m³	BHmax
Outer diameter	902.495 mm	Dout
Average radius	428.574 mm	Ravg
Inner radius	406.074 mm	Rin
Outer radius	451.247 mm	Rout
Effective outer radius	451.074 mm	Rout_eff
Mass of rotor disks	80.5515 kgr	BackIronMass
Volume of rotor disks	10235.3 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.43523 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	21 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	85	Nc
Copper wire diameter	1.7 mm	dc
Number of wires at hand	5	No_wires_at_hand
Winding fill factor	0.49	kf
Copper wire cross-sectional area	11.35 mm2	sc
Copper wire cross-sectional area (Calculated)	10.4992 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.27 mm²	sc_multi_wires
Copper wire diameter (Calculated)	3.65715 mm	dc_theor
Coil leg width	93.7561 mm	wc
Average length of coil turn	434.394 mm	lavg
Stator nominal temperature	44.9518 C°	tc_real
Stator surface area	9774.5 cm²	stator_surface_area
Heat coefficient	0.129452	cq_real
Current density	3.70015 A	Jmax_real
Resistivity of copper at nominal temperature	1.83775E-8 Ohm.m	pt
Resistance of a single coil	0.0597851 Ohm	Rc
Phase resistance	0.23914 Ohm	Rphase
Phase inductance	0.00318742 H	Ls
Nagaoka constant	0.122742	Kn
Winding coefficient	0.95	kw
Volume of a single coil	855269 mm3	coil_volume
Weight of a single coil	3834.75 g	coil_weight_constr
Coil hole at Ravg	25 mm	coil_hole_Ravg
Coil hole at Rin	25 mm	coil_hole_Rin_constr
Coil hole at Rout	25 mm	coil_hole_Rout_constr
Coil mass for construction	49.8517 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	5.132 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	22.5923 V	EMF_nom
Current at the nominal wind speed	41.9967 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	71.915 Hz	fnom
Generator power (Calculated)	1422.48 W	Pnom
Copper losses (Calculated)	1265.33 W	Pcopper
Eddy current losses (Calculated)	27.9267 W	Peddy
Generator efficiency (Calculated)	0.502286	efficiency_real
AC Power at the rectifier (Calculated)	1280.23 W	Pnom_rect
DC Power at the batteries (Calculated)	1152.21 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)	116.274 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	1256.59 EUR	Totalcost
Total generator mass	143.666 kgr	TotalMass
Total generator volume	53.0954 dm3	TotalVolume
Blade rotor mass	15.2925 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	63.8143 EUR	Magcost
Magnet shipping cost	43.4783 EUR	shippingcost
Copper mass	44.9591 kgr	mcu
Cost of copper	663.596 EUR	coppercost
Resin mass	14.5553 kgr	resinmass
Cost of resin	201.051 EUR	resincost
Resin volume	10702.4 cm3	ResinVolume
Total mass of one generator rotor	42.0758 kgr	TotalMassRotor
Cost of iron	99.0784 EUR	ironcost
Surface area of moulds	1.44599 m2	woodS
Total cost of moulds	229.045 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6305.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:

8.50

Design TSR:

6.50

Air density:

1.225kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

45mm

Magnet width:

25mm

Magnet thickness:

20mm

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:

4.00A/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