Clone of 5KW | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by josh manning 1 on Tue, 01/10/2024 - 09:47

Duration:

00:03:21

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	32.7571 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	59.6178 RPM	n_nom
Nominal tip speed ratio	3.12	tsr_nom
RPM at the cut-in wind speed (Flux Linkage)	55 RPM	cutin_RPM
Cut-in Voltage (Flux Linkage)	400 V	cutin_Voltage
Wind speed at cut-in RPM (Flux Linkage)	5.03708 m/s	cutin_Vw
Mechanical power (Torque)	6699.57 W	Pmech_Torque_x

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	7 mm	hr
Magnet width-to-pole pitch ratio	0.366308	ai
Inner-to-outer magnet radius	0.946662	kd
Flux density in airgap	0.407585 T	Bmax
Flux density on magnet surface	0.556816 T	Bmg
First harmonic of flux density in airgap	0.2879 T	Bp
Flux per pole (Calculated)	0.000445306 Wb	Flux_pole
Magnets on a rotor disk	84	magnet_num
Distance between magnets	33.1029 mm	dist_magnet_Rin
Magnet mass	5040 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	4000 mm3	Vmag
Volume of all magnets	672000 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	1500 mm	Dout
Average radius	729.933 mm	Ravg
Inner radius	709.933 mm	Rin
Outer radius	750 mm	Rout
Effective outer radius	749.933 mm	Rout_eff
Mass of rotor disks	194.704 kgr	BackIronMass
Volume of rotor disks	24740 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.924945 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	21	q
Total number of coils in stator	63	coil_num
Number of turns per coil	120	Nc
Copper wire diameter	1.06 mm	dc
Number of wires at hand	2	No_wires_at_hand
Winding fill factor	0.55	kf
Copper wire cross-sectional area	1.76495 mm2	sc
Copper wire diameter (Calculated)	1.49907 mm	dc_theor
Coil leg width	25 mm	wc
Average length of coil turn	183.115 mm	lavg
Stator nominal temperature	57.7 C°	tc_real
Stator surface area	5768.11 cm²	stator_surface_area
Heat coefficient	0.484544	cq_real
Current density	7.08237 A	Jmax_real
Resistivity of copper at nominal temperature	1.92472E-8 Ohm.m	pt
Resistance of a single coil	0.239629 Ohm	Rc
Phase resistance	5.03221 Ohm	Rphase
Phase inductance	0.0158936 H	Ls
Nagaoka constant	0.203769	Kn
Volume of a single coil	59512.3 mm3	coil_volume
Weight of a single coil	352.494 g	coil_weight_constr
Coil hole at Ravg	22.2985 mm	coil_hole_Ravg
Coil hole at Rin	20.3032 mm	coil_hole_Rin_constr
Coil hole at Rout	24.2921 mm	coil_hole_Rout_constr
Coil mass for construction	22.5596 kgr	mcu_constr
RMS flux linkage of phase A	0.0334629 Wb	FluxRmsA
RMS flux linkage of phase B	0.0327635 Wb	FluxRmsB
RMS flux linkage of phase C	0.0329756 Wb	FluxRmsC
EMF at the cut-in wind speed (Calculated)	171.067 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	311.341 V	EMF_nom
RMS of EMF of phase A (Flux Linkage)	181.069 V	V_rmsA
RMS of EMF of phase B (Flux Linkage)	182.569 V	V_rmsB
RMS of EMF of phase C (Flux Linkage)	181.581 V	V_rmsC
Current at the nominal wind speed	12.5 A	Iac_nom
Nominal frequency	41.7325 Hz	fnom
Generator power (Torque)	4303.32 W	PelN_Torque_x
Electromagnetic power (Torque)	6664.28 W	PHMN_Torque_x
Copper losses (Torque)	2358.85 W	PcopperN_Torque_x
Eddy current losses (Torque)	2.11384 W	PeddyN_Torque_x
Generator efficiency (Torque)	0.642327	efftotalN_Torque_x
AC Power at the rectifier (Torque)	4088.15 W	PelN_Torque_x_rect
DC Power at the batteries (Torque)	3883.74 W	PelN_Torque_x_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	6	No_bolts_hub
Mass of bearing hub	14290.7 g	BearingHubMass
Rotational losses (Torque)	35.2929 W	ProtN_Torque_x

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	1834.67 EUR	Totalcost
Total generator mass	234.188 kgr	TotalMass
Total generator volume	75.9873 dm3	TotalVolume
Blade rotor mass	81.9581 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	585.505 EUR	Magcost
Magnet shipping cost	40.5797 EUR	shippingcost
Copper mass	21.8431 kgr	mcu
Cost of copper	322.404 EUR	coppercost
Resin mass	12.6011 kgr	resinmass
Cost of resin	174.057 EUR	resincost
Resin volume	9265.48 cm3	ResinVolume
Total mass of one generator rotor	99.8721 kgr	TotalMassRotor
Cost of iron	239.486 EUR	ironcost
Surface area of moulds	3.24 m2	woodS
Total cost of moulds	513.216 EUR	woodcost

Revolutions per minute (RPM)
0
59.617834

I_RMS (A)
0
12.5

Output files

Octave/Matlab variable file:

simulation-9494.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

3.50m

Cut-in wind speed:

3.00m/s

Nominal wind speed:

7.00m/s

Cut-in TSR:

4.00

Nominal TSR:

3.12

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Outer diameter:

1500.00mm

Magnetic material:

NdFeB N52

Number of generator poles:

Magnet length:

40mm

Magnet width:

20mm

Magnet thickness:

5mm

Rotor disk thickness:

7mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

0.55

Current at nominal wind speed:

12.50A

Stator thickness:

13mm

Number of turns per coil:

120

Copper wire diameter:

1.06mm

Number of wires at hand:

Coil leg width:

25mm

Stator nominal temperature:

57.70C°

System Inputs

System voltage:

400.00V

Transmission cable losses:

5.00%

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

Simulation Radius:

Average radius

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