Hyki 4.34F 48V - 40% resistive load - Dout 50cm | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by Kostas on Sun, 06/07/2025 - 11:23

Duration:

00:00:39

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	105.668 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	275.553 RPM	n_nom
Nominal tip speed ratio	6.25854	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	8 mm	hr
Magnet width-to-pole pitch ratio	0.828947	ai
Inner-to-outer magnet radius	0.72004	kd
Flux density in airgap	0.224736 T	Bmax
Flux density on magnet surface	0.224538 T	Bmg
First harmonic of flux density in airgap	0.23813 T	Bp
Flux per pole (Calculated)	0.000848838 Wb	Flux_pole
Magnets on a rotor disk	24	magnet_num
Distance between magnets	0.5 mm	dist_magnet_Rin
Magnet mass	18000 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	75000 mm3	Vmag
Volume of all magnets	3600000 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	538.12 mm	Dout
Average radius	230.396 mm	Ravg
Inner radius	192.896 mm	Rin
Outer radius	269.06 mm	Rout
Effective outer radius	267.896 mm	Rout_eff
Mass of rotor disks	28.638 kgr	BackIronMass
Volume of rotor disks	3638.88 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.918599 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	6	q
Total number of coils in stator	18	coil_num
Number of turns per coil	60	Nc
Copper wire diameter	1.8 mm	dc
Number of wires at hand	1	No_wires_at_hand
Winding fill factor	0.52	kf
Copper wire cross-sectional area	2.54 mm2	sc
Copper wire cross-sectional area (Calculated)	2.44339 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.54 mm²	sc_multi_wires
Copper wire diameter (Calculated)	1.76426 mm	dc_theor
Coil leg width	22.5444 mm	wc
Average length of coil turn	270.447 mm	lavg
Stator nominal temperature	140.128 C°	tc_real
Stator surface area	2194.94 cm²	stator_surface_area
Heat coefficient	0.487192	cq_real
Current density	7.69572 A	Jmax_real
Resistivity of copper at nominal temperature	2.4338E-8 Ohm.m	pt
Resistance of a single coil	0.155484 Ohm	Rc
Phase resistance	0.932902 Ohm	Rphase
Phase inductance	0.0021685 H	Ls
Nagaoka constant	0.178437	Kn
Winding coefficient	0.7104	kw
Volume of a single coil	79261.7 mm3	coil_volume
Weight of a single coil	380.754 g	coil_weight_constr
Coil hole at Ravg	29 mm	coil_hole_Ravg
Coil hole at Rin	8 mm	coil_hole_Rin_constr
Coil hole at Rout	50 mm	coil_hole_Rout_constr
Coil mass for construction	7.23433 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	20.528 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	53.1263 V	EMF_nom
Current at the nominal wind speed	19.5471 A	Iac_nom
Terminal voltage at the nominal wind speed	34.1278 V	V_term_line
Nominal frequency	55.1106 Hz	fnom
Generator power (Calculated)	2001.3 W	Pnom
Copper losses (Calculated)	1069.36 W	Pcopper
Eddy current losses (Calculated)	21.5231 W	Peddy
Generator efficiency (Calculated)	0.638731	efficiency_real
AC Power at the rectifier (Calculated)	1200.78 W	Pnom_rect
DC Power at the batteries (Calculated)	1140.74 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)	41.0658 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	539.959 EUR	Totalcost
Total generator mass	54.8977 kgr	TotalMass
Total generator volume	17.0572 dm3	TotalVolume
Blade rotor mass	19.5329 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	273.095 EUR	Magcost
Magnet shipping cost	217.391 EUR	shippingcost
Copper mass	6.63249 kgr	mcu
Cost of copper	97.8955 EUR	coppercost
Resin mass	1.62721 kgr	resinmass
Cost of resin	22.4765 EUR	resincost
Resin volume	1196.48 cm3	ResinVolume
Total mass of one generator rotor	23.319 kgr	TotalMassRotor
Cost of iron	35.2247 EUR	ironcost
Surface area of moulds	0.702444 m2	woodS
Total cost of moulds	111.267 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-9912.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.17m

Aerodynamic coefficient:

0.35

Cut-in wind speed:

3.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

8.00

Design TSR:

6.50

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

75mm

Magnet width:

50mm

Magnet thickness:

20mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

8mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Triangular

Winder bolt size:

8.00mm

Winding fill factor:

Calculated

Stator thickness:

User defined

Stator thickness:

13mm

Current density:

8.00A/mm2

System Inputs

System voltage:

48.00V

Nominal voltage:

57.00V

Transmission cable losses:

40.00%

Rectifier losses:

5.00%

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