Clone of Hello less magnets | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by noor.samir on Sun, 17/03/2019 - 13:47

Duration:

00:08:08

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	167.197 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	273.822 RPM	n_nom
Nominal tip speed ratio	4.299	tsr_nom
RPM at the cut-in wind speed (Flux Linkage)	156 RPM	cutin_RPM
Cut-in Voltage (Flux Linkage)	24 V	cutin_Voltage
Wind speed at cut-in RPM (Flux Linkage)	2.79909 m/s	cutin_Vw
Mechanical power (Torque)	1320.37 W	Pmech_Torque_x

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	6 mm	hr
Magnet width-to-pole pitch ratio	0.521665	ai
Inner-to-outer magnet radius	0.896402	kd
Flux density in airgap	0.791198 T	Bmax
Flux density on magnet surface	0.792645 T	Bmg
First harmonic of flux density in airgap	0.66366 T	Bp
Flux per pole (Calculated)	0.000805528 Wb	Flux_pole
Magnets on a rotor disk	12	magnet_num
Distance between magnets	40.6109 mm	dist_magnet_Rin
Magnet mass	1800 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	10000 mm3	Vmag
Volume of all magnets	240000 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	389.332 mm	Dout
Average radius	183.054 mm	Ravg
Inner radius	173.054 mm	Rin
Outer radius	194.666 mm	Rout
Effective outer radius	193.054 mm	Rout_eff
Mass of rotor disks	11.2431 kgr	BackIronMass
Volume of rotor disks	1428.6 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	3.62331 T	SaturMAX
Is the magnet rotor disk saturated?	Yes	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	14 mm	tw
Number of phases	3	nphase
Number of coils per phase	3	q
Total number of coils in stator	9	coil_num
Number of turns per coil	60	Nc
Copper wire diameter	1.7 mm	dc
Number of wires at hand	2	No_wires_at_hand
Winding fill factor	0.55	kf
Copper wire cross-sectional area	4.54 mm2	sc
Copper wire cross-sectional area (Calculated)	4.23222 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.27 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.32193 mm	dc_theor
Coil leg width	35.3766 mm	wc
Average length of coil turn	251.083 mm	lavg
Stator nominal temperature	68.1324 C°	tc_real
Stator surface area	1598.84 cm²	stator_surface_area
Heat coefficient	0.239332	cq_real
Current density	5.59324 A	Jmax_real
Resistivity of copper at nominal temperature	1.98707E-8 Ohm.m	pt
Resistance of a single coil	0.0659365 Ohm	Rc
Phase resistance	0.197809 Ohm	Rphase
Phase inductance	0.000813963 H	Ls
Nagaoka constant	0.167369	Kn
Winding coefficient	0.95	kw
Volume of a single coil	124354 mm3	coil_volume
Weight of a single coil	631.832 g	coil_weight_constr
Coil hole at Ravg	50 mm	coil_hole_Ravg
Coil hole at Rin	50 mm	coil_hole_Rin_constr
Coil hole at Rout	50 mm	coil_hole_Rout_constr
Coil mass for construction	6.31832 kgr	mcu_constr
RMS flux linkage of phase A	0.033902 Wb	FluxRmsA
RMS flux linkage of phase B	0.0335655 Wb	FluxRmsB
RMS flux linkage of phase C	0.0338113 Wb	FluxRmsC
EMF at the cut-in wind speed (Calculated)	10.264 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	16.749 V	EMF_nom
RMS of EMF of phase A (Flux Linkage)	17.4439 V	V_rmsA
RMS of EMF of phase B (Flux Linkage)	17.4771 V	V_rmsB
RMS of EMF of phase C (Flux Linkage)	17.4487 V	V_rmsC
Current at the nominal wind speed	25.3933 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	27.3822 Hz	fnom
Generator power (Calculated)	860.102 W	Pnom
Generator power (Torque)	918.268 W	PelN_Torque_x
Electromagnetic power (Torque)	1307.66 W	PHMN_Torque_x
Copper losses (Calculated)	382.655 W	Pcopper
Copper losses (Torque)	382.655 W	PcopperN_Torque_x
Eddy current losses (Torque)	6.7402 W	PeddyN_Torque_x
Generator efficiency (Torque)	0.695463	efftotalN_Torque_x
Generator efficiency (Calculated)	0.674052	efficiency_real
AC Power at the rectifier (Calculated)	774.092 W	Pnom_rect
AC Power at the rectifier (Torque)	826.441 W	PelN_Torque_x_rect
DC Power at the batteries (Calculated)	696.683 W	Pnom_dc
DC Power at the batteries (Torque)	743.797 W	PelN_Torque_x_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	4	No_bolts_hub
Mass of bearing hub	3708.65 g	BearingHubMass
Rotational losses (Calculated)	12.7071 W	Prot
Rotational losses (Torque)	12.7071 W	ProtN_Torque_x

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	411.025 EUR	Totalcost
Total generator mass	20.9773 kgr	TotalMass
Total generator volume	5.71441 dm3	TotalVolume
Blade rotor mass	6.45151 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	207.122 EUR	Magcost
Magnet shipping cost	14.4928 EUR	shippingcost
Copper mass	5.50305 kgr	mcu
Cost of copper	81.2251 EUR	coppercost
Resin mass	2.43117 kgr	resinmass
Cost of resin	33.5816 EUR	resincost
Resin volume	1787.63 cm3	ResinVolume
Total mass of one generator rotor	6.52155 kgr	TotalMassRotor
Cost of iron	13.829 EUR	ironcost
Surface area of moulds	0.475179 m2	woodS
Total cost of moulds	75.2683 EUR	woodcost

Revolutions per minute (RPM)
0
273.821622

I_RMS (A)
0
25.393314

Output files

Octave/Matlab variable file:

simulation-6101.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

1.50m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

3.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

8.75

Design TSR:

6.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N52

Number of generator poles:

Magnet length:

20mm

Magnet width:

50mm

Magnet thickness:

10mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

6mm

Mechanical clearance:

1.00mm

Generator Stator Inputs

Select coil type:

Rectangular

Winding fill factor:

Calculated

Stator thickness:

Calculated

Current density:

6.00A/mm2

System Inputs

System voltage:

24.00V

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