4.2m Waterpumper India 20 POLE, 800VDC 4.274Amp | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by minvayu on Thu, 11/03/2021 - 11:32

Duration:

00:05:34

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	119.427 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	318.471 RPM	n_nom
Nominal tip speed ratio	7	tsr_nom
RPM at the cut-in wind speed (Flux Linkage)	115 RPM	cutin_RPM
Cut-in Voltage (Flux Linkage)	241 V	cutin_Voltage
Wind speed at cut-in RPM (Flux Linkage)	2.8888 m/s	cutin_Vw
Mechanical power (Torque)	2945.43 W	Pmech_Torque_x

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.417632	ai
Inner-to-outer magnet radius	0.763938	kd
Flux density in airgap	0.6283 T	Bmax
Flux density on magnet surface	0.74066 T	Bmg
First harmonic of flux density in airgap	0.484797 T	Bp
Flux per pole (Calculated)	0.000947022 Wb	Flux_pole
Magnets on a rotor disk	20	magnet_num
Distance between magnets	26.8503 mm	dist_magnet_Rin
Magnet mass	4972.5 g	MagnetMass
Magnet density	7.5 g/cm3	mag_density
Volume of a single magnet	16575 mm3	Vmag
Volume of all magnets	663000 mm3	VolumeMagnet
Remanent magnetic flux density	1.35 T	Br
Magnetic coercivity	1041910 A/m	Hc
Maximum Energy Product	366 KJ/m³	BHmax
Outer diameter	432.812 mm	Dout
Average radius	190.544 mm	Ravg
Inner radius	165.044 mm	Rin
Outer radius	216.406 mm	Rout
Effective outer radius	216.044 mm	Rout_eff
Mass of rotor disks	23.1575 kgr	BackIronMass
Volume of rotor disks	2942.51 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.13751 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	5	q
Total number of coils in stator	15	coil_num
Number of turns per coil	258	Nc
Copper wire diameter	1.06 mm	dc
Number of wires at hand	1	No_wires_at_hand
Winding fill factor	0.65	kf
Copper wire cross-sectional area	0.88 mm2	sc
Copper wire cross-sectional area (Calculated)	0.878871 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	0.88 mm²	sc_multi_wires
Copper wire diameter (Calculated)	1.0581 mm	dc_theor
Coil leg width	27.1373 mm	wc
Average length of coil turn	220.15 mm	lavg
Stator nominal temperature	47.2589 C°	tc_real
Stator surface area	1792.28 cm²	stator_surface_area
Heat coefficient	0.141643	cq_real
Current density	4.26852 A	Jmax_real
Resistivity of copper at nominal temperature	1.85838E-8 Ohm.m	pt
Resistance of a single coil	1.19947 Ohm	Rc
Phase resistance	5.99737 Ohm	Rphase
Phase inductance	0.0228634 H	Ls
Nagaoka constant	0.184263	Kn
Winding coefficient	0.95	kw
Volume of a single coil	77665.7 mm3	coil_volume
Weight of a single coil	450.311 g	coil_weight_constr
Coil hole at Ravg	25 mm	coil_hole_Ravg
Coil hole at Rin	14.3545 mm	coil_hole_Rin_constr
Coil hole at Rout	35.6812 mm	coil_hole_Rout_constr
Coil mass for construction	7.20497 kgr	mcu_constr
RMS flux linkage of phase A	0.165152 Wb	FluxRmsA
RMS flux linkage of phase B	0.162709 Wb	FluxRmsB
RMS flux linkage of phase C	0.164739 Wb	FluxRmsC
EMF at the cut-in wind speed (Calculated)	102.64 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	273.707 V	EMF_nom
RMS of EMF of phase A (Flux Linkage)	272.23 V	V_rmsA
RMS of EMF of phase B (Flux Linkage)	273.03 V	V_rmsB
RMS of EMF of phase C (Flux Linkage)	272.406 V	V_rmsC
Current at the nominal wind speed	3.75629 A	Iac_nom
Terminal voltage at the nominal wind speed	376.347 V	V_term_line
Nominal frequency	53.0786 Hz	fnom
Generator power (Calculated)	2749.29 W	Pnom
Generator power (Torque)	2650.23 W	PelN_Torque_x
Electromagnetic power (Torque)	2910.93 W	PHMN_Torque_x
Copper losses (Calculated)	253.864 W	Pcopper
Copper losses (Torque)	253.864 W	PcopperN_Torque_x
Eddy current losses (Torque)	6.83288 W	PeddyN_Torque_x
Generator efficiency (Torque)	0.899775	efftotalN_Torque_x
Generator efficiency (Calculated)	0.894823	efficiency_real
AC Power at the rectifier (Calculated)	2474.36 W	Pnom_rect
AC Power at the rectifier (Torque)	2385.21 W	PelN_Torque_x_rect
DC Power at the batteries (Calculated)	2226.93 W	Pnom_dc
DC Power at the batteries (Torque)	2146.69 W	PelN_Torque_x_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)	34.5079 W	Prot
Rotational losses (Torque)	34.5079 W	ProtN_Torque_x

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	754.247 EUR	Totalcost
Total generator mass	37.9694 kgr	TotalMass
Total generator volume	9.56315 dm3	TotalVolume
Blade rotor mass	17.7029 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	498.443 EUR	Magcost
Magnet shipping cost	40.0362 EUR	shippingcost
Copper mass	6.7027 kgr	mcu
Cost of copper	98.9319 EUR	coppercost
Resin mass	3.13665 kgr	resinmass
Cost of resin	43.3262 EUR	resincost
Resin volume	2306.36 cm3	ResinVolume
Total mass of one generator rotor	14.065 kgr	TotalMassRotor
Cost of iron	28.4838 EUR	ironcost
Surface area of moulds	0.537013 m2	woodS
Total cost of moulds	85.0628 EUR	woodcost

Revolutions per minute (RPM)
0
318.471338

I_RMS (A)
0
3.756294

Output files

Octave/Matlab variable file:

simulation-6954.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.10m

Aerodynamic coefficient:

0.37

Cut-in wind speed:

3.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

8.75

Design TSR:

7.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

NdFeB N45

Number of generator poles:

Magnet length:

51mm

Magnet width:

25mm

Magnet thickness:

13mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

Calculated

Stator thickness:

User defined

Stator thickness:

13mm

Current density:

4.27A/mm2

System Inputs

System voltage:

240.00V

Nominal voltage:

800.00V

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