I already wrote at the beginning of the summer about a homemade windmill - anemometer.
His goal was to organize the collection of wind statistics and the adoption of the decision on the construction of a large serious windmill. Unfortunately, there was no programmer who wants to write a data processing program from an anemometer, nor a microcontroller specialist to create an appropriate device. Therefore, alas had to observe the wind visually, the benefit of the weather was always in sight. And unfortunately, these extremely depressing observations ...
The fact is that the wind in the middle lane of the European part of Russia has extreme turbulence in its surface layers. Literally within 3-5 minutes, the windmill is repeatedly and stops (or slows down) and is unwinding so that the blades are not visible. At the same time, the direction of the wind is changing in the sector to 90-120 degrees. Extremely rarely there are days when a relatively strong and even wind blows. For all summer, in my area of \u200b\u200bsuch days was only 4. There were several pile days. And in the rest - the wind was very turbulent, and speed, and in the direction.
In such conditions, to make the "global" wind power generator (per 1-2 kW or more) is completely meaningless. He will never just pay for himself, but it will be bad at all. Since the powerful generator will require large blades, and they will have a big inertia and therefore - "skip" the impulses of a strong wind. Those. Simpar will not have time to unwind. Sometimes such impulses carrying the main power of the "average" wind stream last 15-30 seconds.
In addition, any rotating subject has a significant moment of inertia in the rotational plane and is, in fact, a gyroscope. I hope the reader remembers the simple school experience to demonstrate a gyroscopic effect with a bicycle wheel. Being promoted, it is easily held with literally "two fingers" for one of the protruding ends of its axis. And it is extremely difficult to turn in the side and make it clear in another plane. Approximately the same will occur with the windmill propeller when the wind direction changes. Both the axis and the propeller blades will experience monstrous side alternate loads.
These circumstances actually put the bold cross in hopes to do with one big windmill. He will, of course work. But rarely and stupid. With weak turbulent winds, it will still produce meager power, and with strong - you will not know where to give the surplus. And of course, you should forget about its payback. He will be just an expensive and beautiful toy, the most stupid investment and work, which can only be represented.
The prospective design of windmills is small low-power wind generators having almost zero inertia. They are able to take almost all the energy that he carries from the wind. Such in order to have time to quickly promote and handle the change of galese. And to obtain high power, a device of a peculiar windmatch of wind generators, located on the diverse masts (not to shield each other from the wind). This, by the way, will significantly increase the drowiness, solving problems with powerful heavy masts and stretch marks (masts will keep each other), with the reliability of the "power plant" - after all, all at once the generators may not break and scheduled repair and maintenance will not lead to a complete stop of generating capacity .
Come to such disappointing conclusions, I decided to remake my anemometer into the working model of the wind generator. Those. Instead of a stupid contemplation of the weather, start receiving practical benefits from him. Moreover, the windmaster generator is a stepper engine with 200 "steps" on the turn and pretty smartly generate electricity even on small speeds. Generator power approximately Watt 7-8
First of all, it was necessary to replace the blades for less inertial. Fluffs from the fan are still quite heavy. New windmill blades I made them from a duralumin residue for plastic windows. The diameter of the propeller is approximately centimeters 50. What promises the output to the maximum power for the generator already under wind 4 m / s. Cut from thick plywood triangle. Inserted into it (epoxy resin) the sleeve, the inner diameter of which coincided in the diameter of the stepping motor axis. Carefully placing, made the propellers in the plywood "cockpit" and pasted in the slots of the blade. Additionally fixed them with small screws. So far, the epoxy has not frozen, tried to balance the screw as much as possible, which he did not vibrate when rotating. After soaring epoxy resin, once again checked the balancing and brought it to perfection by cutting the finest strips of duralle from the edges of the blades.
Generally speaking, small wind-generators have a pleasant property. There is practically no sense to bother with the most complex calculations of the keeve, the profiles of the blade and their manufacture. The simplest, flat ones will work perfectly. And the necessary power can be obtained by their simple elongation (consequently, an increase in the area of \u200b\u200bosetania).
All this is extremely harassed by the wind generator, the meaning of its manufacture and use appears. In particular, I spent about 3-4 hours of time (including fluger) and without taking into account the polymerization time epoxy resin. Costs amounted to "zero", since everything was "from garbage", i.e. Head materials.
It would seem where you can use such a low-power generator? In the future, I'm going to use it on ... Heating water. Rather, to compensate for the heat loss of water heated by the sun. The simplest calculation shows the absolute consistency of my hopes.
Suppose there is a certain tank - thermos, liters to 50, where in the evening the water from the solar collector is merged up to 50 degrees. The size of the tank is about 40 x 40 x 40 cm. Accordingly, the surface area will be equal to 1 kV. meter. The tank is surrounded by thermal insulation with TOthe thermal conductivity of 0.15 W / m * degrees and a thickness of 30 cm. and heat loss will be about 0.5 W / degrees. Those. In order to maintain the difference in temperatures in 20-25 degrees between hot water In the tank thermos and the surrounding air, enough generator with a capacity of only 10-15 W! It will compensate for the heat loss and one day the heated water will never cool. And it happens a strong breeze - it still warms it.
Now my generator is spinning without load, "running tests" passes. But in the near future I will make it charge the batteries in the illumination of the country toilet and the backlight of the track to it. And then drag the network wire there and laziness and is difficult, and it is already tired of changing batteries in the Chinese lantern.
Driving on a bike past dacha sites, I saw a working wind generator:
Large blades slowly, but rightly rotated, the fluger oriented the device in the direction of the wind.
I wanted to realize a similar design, albeit not able to produce power sufficient to ensure "serious" consumers, but still working and, for example, charging batteries or feeding LEDs.
Stepper engines
One of the most effective options for a small homemade wind power generator is to use stepper Engine (Shd) (eng. stepping (STEPPER, STEP) Motor) - In such a motor, the shaft rotation consists of small steps. The stepping motor windings are combined into phases. When the current is supplied to one of the phases, the shaft moves one step.
These engines are low-speedand the generator with such an engine can be without a gearbox connected to a wind turbine, a stirling engine or another low-speed power source. When used as an ordinary (collector) engine generator direct current To achieve the same results, it would be required 10-15 times a higher rotational speed.
A feature of the header is a fairly high moment of start (even without electrical load connected to the generator), reaching 40 grams of force on a centimeter.
The efficiency coefficient of the generator from the SD reaches 40%.
To check the performance of the stepper motor, you can connect, for example, a red LED. Rotating motor shaft, you can observe the glow of the LED. The polarity of the connection of the LED does not matter, since the engine produces an alternating current.
There are enough stores powerful engines Fixed flexible disc drives, as well as old printers and scanners.
Engine 1.
For example, I have a shd from the old 5.25 "drive worked as part ZX Spectrum - compatible computer "byte".
Such a drive contains two windings, from the ends and the middle of which conclusions are made - the engine is derived from the engine six Wires: 
First winding (eng. cOIL 1.) - blue (eng. blue) And yellow (eng. yellow);
Second winding (eng. cOIL 2.) - Red (eng. red) And white (eng. white);
brown (eng. brown.) Wires - Conclusions from midpoints of each winding (eng. center Taps.).
disassembled stepping motor
The engine is visible to the left, on which the "striped" magnetic poles are visible - North and South. It is clearly visible a stator winding, consisting of eight coils.
Half resistance of the winding is ~ 70 ohms.
I used this engine in the original design of my wind generator.
Engine 2.
At my disposal less powerful stepper engine T1319635. Firms Epoch Electronics Corp. From scanner HP Scanjet 2400. It has five Conclusions (Unipolar Motor): 
First winding (eng. cOIL 1.) - Orange (eng. orange) And black (eng. black.);
Second winding (eng. cOIL 2.) - brown (eng. brown.) And yellow (eng. yellow);
red (eng. red) Wire - connected together conclusions from the midpoint of each winding (eng. center Taps.).
Half resistance winding is 58 ohms, which is indicated on the engine housing.
Engine 3.
In the improved version of the wind generator, I used a stepping motor Robotron SPA 42 / 100-558produced in the GDR and the voltage designed for 12 V: 
Wind turbine
There are two options for the arrangement of the axis of the impeller (turbine) of the wind generator - horizontal and vertical.
Advantage horizontal(most popular) Location The axes located in the direction of the wind is more efficient use of wind energy, disadvantage - complication of the design.
I chose vertical location axis - Vawt. (vertical Axis Wind Turbine), which significantly simplifies the design and does not require orientation in the wind . This option is more suitable for mounting on the roof, it is much more efficient in the conditions of fast and frequent changes in the direction of the wind.
I used the type of wind turbine, called the Savonius wind turbine (eng. Savonius Wind Turbine.). It was invented in 1922 Sigurd Johannes Savonius (Sigurd Johannes Savonius) From Finland. 
Sigurd Johannes Savonius
The work of the Savonius wind turbine is based on the fact that resistance (eng. drag.) The airflow of the air - the wind of the concave surface of the cylinder (blades) is greater than the convex.
Aerodynamic resistance coefficients (english drag Coefficients) $ C_D $
Two-dimensional bodies:
concave half of the cylinder (1) - 2.30
Convex half of the cylinder (2) - 1.20
Flat Square Plate - 1.17
three-dimensional bodies:
concave half hemisphere (3) - 1.42
Convex half hemisphere (4) - 0.38
Sphere - 0.5
The specified values \u200b\u200bare given for Reynolds numbers (English. Reynolds Numbers) In the range of $ 10 ^ 4 - 10 ^ 6 $. The Reynolds number characterizes the behavior of the body in the medium.
Body Resistance Power Air Flow $ (F_D) \u003d ((1 \\ OVER 2) (C_D) S \\ RHO (V ^ 2)) $, where $ \\ rho $ - air density, $ V $ - Airflow speed, $ s $ - body cross section.
Such a wind turbine rotates in the same side, regardless of the direction of the wind: 
A similar principle of operation is used in a cup anemometer (eng. cup Anemometer) - Device for measuring wind speed: 
Such an anemometer was invented in 1846 by Irish Astronomer John Thomas Romney Robinson ( John Thomas Romney Robinson):
Robinson believed that the cups in its four-stage anemometer were moved at a speed equal to one third of the wind speed. In reality, this value varies from two to a little more than three.
Currently, three-dimensional anemometers developed by Canadian meteorologist John Patterson ( John Patterson.) In 1926: 
Generators on DC collector engines with vertical microturbine are sold on eBay. For price about $ 5: 
Such turbine contains four blades located along two perpendicular axes, with a diameter of a 100 mm impeller, a height of a blade of 60 mm, a length of chord 30 mm and a 11 mm segment height. The impeller is attached to the DC collector micromotor shaft with marking JQ24-125H670.. The nominal supply voltage of such an engine is 3 ... 12 V.
The energy produced by such a generator is enough for the luminescence of the "White" LED.
Savonius wind turbine rotation speed can not exceed wind speed , but this design is characterized high torque (eng. torque).
The efficiency of the wind turbine can be estimated by comparing the power generated by the wind generator with a power concluded in the wind blowing the turbine:
$ P \u003d (1 \\ Over 2) \\ Rho S (V ^ 3) $, where $ \\ rho $ is air density (about 1.225 kg / m 3 at sea level), $ s $ - oven turbine area (eng. sWEPT Area), $ V $ - wind speed.
My wind turbine
Option 1
Initially, four blades are used in the impeller of my generator in the form of segments (halves) of cylinders cut from plastic pipes:
Size segments -
segment length - 14 cm;
segment height - 2 cm;
The length of the chord segment is 4 cm;
I installed the collected design on a high enough (6 m 70 cm) of a wooden mast from a bar attached by self-drawing to a metal frame: 
Option 2.
The lack of a generator was quite high wind speed required for the promotion of the blades. To increase the surface area, I used blades cut from plastic bottles:
Size segments -
segment length - 18 cm;
segment height - 5 cm;
The length of the chord segment is 7 cm;
The distance from the start of the segment to the center of the axis of rotation is 3 cm.
Option 3.
The problem was the strength of the blades holders. At first I used perforated aluminum planks from the Soviet children's designer 1 mm thick. After a few days of operation, the strong gusts of the wind led to a breakdown of slats (1). After this failure, I decided to cut the holders of the blades from the foil textolite (2) with a thickness of 1.8 mm: 
The strength of the textolite for bending is perpendicular to the plate is 204 MPa and comparable with aluminum bending strength - 275 MPa. But the aluminum elastic module $ E $ (70,000 MPa) is much larger than that of the textolite (10,000 MPa), i.e. Texolit is much more elastic aluminum. This, in my opinion, taking into account the greater thickness of the textolite holders, will ensure much greater reliability of the fastening of the wind-generator blades.
The wind generator is mounted on the mast: 
Experienced operation of the new version of the wind generator showed its reliability even with severe wind gusts.
The disadvantage of the Savonius turbine is low efficiency
- Only about 15% of wind energy is converted to the energy of the shaft rotation (it is much less than it can be achieved with darier wind turbine (eng. Darrieus Wind Turbine.)), using lifting force (eng. lift). This type of wind turbine was invented by the French aircraft designer George Daria (Georges Jean Marie Darrieus) -uS Patent from 1931 No. 1,835,018 .
Georges Darier
The disadvantage of the turbine Daria is that she has a very bad self-timing (to generate a torque from wind turbine should already be promoted).
Electricity transformation generated by a stepper engine
The conclusions of the stepping motor can be connected to two bridge rectifiers collected from Schottky diodes to reduce the voltage drop on diodes.
You can apply popular Schottky diodes 1N5817. with maximum reverse voltage of 20 V, 1N5819. - 40 V and maximum direct medium straightened current 1 A. I connected rectifier outputs consistently in order to increase the output voltage.
You can also use two rectifiers with a midwater. Such a rectifier requires two times less diodes, but the output voltage decreases twice.
The pulsating voltage is then smoothed using a capacitive filter - a condenser 1000 μF by 25 V. to protect against increased generated voltage parallel to the condenser included Stabilion on 25 V. 
scheme of my wind generator
electronic block of my wind generator
Application of the wind generator
The voltage generated by the wind generator depends on the size and constancy of the wind speed.
With wind, pelling thin branches of trees, the voltage reaches 2 ... 3 V.
In the wind, the pelling thick branches of trees, the voltage reaches 4 ... 5 V (with strong gusts - up to 7 V).
Connection to Joule Thief
The smoothed voltage from the wind generator capacitor can be supplied to - low-voltage DC-DC. converter 
Resistor resistance value R. It is selected experimentally (depending on the type of transistor) - it is advisable to use a variable resistor by 4.7 kΩ and gradually reduce its resistance, achieving stable work converter.
I collected such a converter on the basis of Germany pNP.-Transistor GT308V ( Vt.) and a pulsed transformer MIT-4B (coil L1 - conclusions 2-3, L2. - Conclusions 5-6): 
Charge of ionistors (supercapacitors)
Ionistor (supercapacitor, eng. supercapacitor) is a hybrid capacitor and chemical source Current.
Jonistor - unpolary The element, but one of the conclusions can be marked with an "arrow" - to designate the polarity of residual voltage after it is charging at the factory.
For initial research, I used an ionistor With a capacity of 0.22 ° C voltage 5.5 V (diameter 11.5 mm, height 3.5 mm):
I connected it through a diode to the output via germanium diode D310.
To limit the maximum voltage of the charging of the ionistor, you can use a stabilion or a chain of LEDs - I use a chain from two Red LEDs: 
To prevent the discharge of the already charged ionistor through restrictive LEDs HL1 and HL2. I added another diode - VD2..
To be continued
Do you even see what they write? Or write to support a person in his endeavors and he, spending money on components for his system, eventually got an absolutely inoperable thing? You answer: "The engine, as the genome approaches" - yes, suitable, but where did you get 1.1-1,5a? Is it with what voltage? At what speed of rotor? Next, write: "The standard of power of 1m tape, like, 5W ..." - there is no power standard here, and the tapes are about 5W and about 14W, and about 7W per meter, etc., and this is a very big scatter. We continue: "Since you screwed so much, it may well have enough to charge the battery" - this is, in general, what does it mean? What is the harder, farewell and confusing the scheme, the greater its return and efficiency? Full nonsense. To charge 12V MOTOKKUMA, it is necessary about 14-15V at a current of about 0.6-0.7A (for tank approximately 7a / h). Are you sure that the system is able to give such parameters to long time? After all, to charge the discharged battery of the motorcycle, 2-3 hours do not have enough. Do you think it is also necessary to charge from 18v? Yes, it is possible, but the electrolyte will pop up in a week, if not earlier, and the plates will snap. Good recommendation! Unpretentious in charge - this does not mean that they can be charged with any voltage. Next you write: "It will be very great, after all, I suddenly forgot to turn off the light and the battery sat down before it had time to recapture" - Speak so that the battery charging takes place only in the daytime))) it's a windmill, not a solar battery. With a properly working system, with constant wind, the battery should not be discharged at all, even if you even forgot to turn off the light. But the idea of \u200b\u200bthe photocell itself is good in terms of automation. Further: lED Strip LightProbably will work as you say, and at 30 volts, however, how long? Resistance limit the current, yes, but it will grow in proportion to raising the voltage, and not remain constant! Diodes do not like to exceed the operating current. So that the result is known: overheating of diodes and, as a result, a sharp decline in the period of operation, or their exit is extremely fast. Following whether you are writing: "The capacity is also not critical, add another 1 film capacitor for 1 μF" - for what? Is that a filter interference? Why then 1MKF? And why there is a filter at all? And, if not a filter, and smoothing pulsation element, then it is just his capacity critical! Capacity is the main parameter of the condenser in general. And 1MKF is an empty place for the system described by a person, he will not smooth out. Even 1000mkf, which the author of the questions wanted to establish - very little for his idea. I would understand if it were 5000-7000 or even 10000mkf, or even more. At the end, a person asks if Motoakuk is enough for the ribbon to glow all night, and you answer that, they say, of course, enough. Have you studied physics at school? Or are you still learning? It was your assumption with a finger into the sky or at least some elemental calculation? Let's catch very roughly: the man wrote that he wants to set 10-15 m tapes. Even if you take the minimum values, i.e. 10m tapes with a power of 5W / m, then by non-good calculations we get 50W power. Objectives the power of the ribbon to the battery voltage (approximately 12.8V) we obtain the current: 50 / 12.8 \u003d 3,9A. The capacity of the usual motorcycle is approximately 7a / h. So You can estimate how long the tape will work from a fully charged battery: 7 / 3.9 \u003d 1.79h \u003d 1h 4 44., i.e. Almost two hours. This is not the whole night. In addition, the calculation of the minimum parameters and, if the length of the tape or / and its power will be larger, respectively, the battery life is proportionally decreased. Something like that.
I would not write all this, but the fact is that the tape costs money, battery and photoyele, too ... and money is considerable, and people who have approved and support their idea in the comments of people who do not understand the essence and nuances of the process, It will joyfully run into the store, will spend money on components, and in the end will receive the system inoperative in principle, initially. Do not give advice, not dealing in the question!
Every year people keep searching for alternative sources. Homemade power plant from the old automobile generator It will be by the way in remote areas where there is no connection to a common network. She will be able to freely charge rechargeable batteriesAnd also will ensure the operation of several household appliances and lighting. Where to use the energy that will be developed solve you, and also collect it with your own hands or acquire from manufacturers who are in the market. In this article we will help you to deal with the wind-generator assembly scheme with their own hands from those materials that always have any owner.
Consider the principle of the wind-power plant. A rotor and screws are activated under the rapid wind stream, after the movement comes the main shaft, rotating the gearbox, and then generates. At the exit, we get electricity. Consequently, the higher the speed of rotation of the mechanism, the greater the performance. Accordingly, when locating designs, take into account the terrain, relief, know the areas of the territories where the high speed of the vortex.
Instructions for assembly from a car generator
To do this, you need to prepare all the components in advance. Most. an important element is a generator. It is best to take a tractor or bus, it is able to work out much more energy. But if there is no such possibility, it is most likely to do and more weak aggregates. To build the device you will need:
voltmeter
Relay battery charging
Steel for the manufacture of blades
12 volt battery
Box for wires
4 bolts with nuts and washers
Clamps for fastening
Build a home device for 220V
When everything is needed ready go to the assembly. Each options may have additional details, but they are clearly stipulated directly in the manual.
First, collect a wind wheel - the main element of the design, because this item will transform the wind energy into mechanical. It is best that he has 4 blades. Remember that the smaller their number, the more mechanical vibration and the more difficult it will be balanced. Make them of sheet steel or iron barrel. The form they must be worn out of such as you saw in old mills, but resembling a wing type. They have aerodynamic resistance much lower, and effectiveness is higher. After you with the help of a grinder, cut the windmill with blades with a diameter of 1.2-1.8 meters, it is necessary to attach it with the rotor with the axis of the generator, drill the opening and connecting the bolts.
Assembling the electrical circuit
Fix the wires and connect them directly to the battery and the voltage converter. It is required to use everything that at school in the lessons of physics you were taught to make a mastery when assembling electrical circuit. Before starting the development, think about which kw you need. It is important to note that without subsequent alteration and the rewind of the stator are not suitable at all, the working turns are 1.2 thousand-6 thousand r / m, and this is not enough to produce energy. It is for this reason that it takes rid of the excitation coil. To raise the voltage level, rewind the stator with a thin wire. As a rule, as a result, the power will be at 10 m / s 150-300 watts. After assembly, the rotor will be good to magnetize, as if the power was connected to it.
Rotor homemade wind generators Very reliable in work and economically beneficial, the only imperfection is the fear of strong wind gusts. The principle of work has a simple - whirlwind through the blades causes the mechanism to spin. In the course of these intensive rotations, the energy required to you is produced. Such a power station is a very good way to provide a small house with electricity, of course, to pump water from the well of its power will not be enough, but to watch TV or turn on the light in all rooms with it is possible.
From home fan
The fan itself may be inoperative, but it takes only a few parts from it - this is a rack and screw itself. For the design, you will need a small stepper engine stitching by a diode bridge so that it gives out a constant voltage, a bottle of shampoo, a plastic plumbing tube is about 50 cm long, the plug for it and the lid from the plastic bucket.
On the machine make the sleeve and fix in the connector from the wings of the disassembled fan. The generator will be attached to this bushing. After fixing, you need to do the manufacture of the housing. Cut with a machine or manually bottom from a bottle of shampoo. During cutting, it is also required to leave the hole to 10 so that insert the axis, is turned out of an aluminum rod. Attach it with a bolt and nut to a bottle. After the soldering of all wires was performed, another hole is done in the bottle housing for the output of these wiring. We stretch them and fix them in a bottle from above on the generator. In shape, they must coincide and the bottle body must reliably hide all its parts.
Shank for our device
In order for in the future, he trampled wind streams from different sides, collect the shank, using a pre-prepared tube. The tail part will be fastened with the unscrewed covers from the shampoo. It also make a hole and, pre-put on one end of the tube plug, stretch it and fix it to the main bottle body. On the other hand, the tube is powered with hacksaw and cut out with scissors from the cover of the plastic bucket of the shank wing, it should have a round shape. All you need is simply to trim the edges of the bucket that it attached to the main capacity.
On the back panel supports attach USB output And we fold all the details obtained in one. Fastening the radio or recharge the phone will be possible through this mounted USB port. Of course, it does not possess a strong power from the household fan, but still the lighting of one bulb can provide.
Wind generator with their own hands from the stepper motor
A device from a stepper motor Even with a small rotation speed produces about 3 W. Voltage can rise above 12 V, and this allows you to charge a small battery. As a generator, you can insert a stepping motor from the printer. In this mode, the stepper motor produces an alternating current, and it is easily converted to a constant using several diode bridges and capacitors. The scheme you can assemble yourself. The stabilizer is installed behind the bridges, as a result, we obtain a constant output voltage. To control the visually voltage, you can install the LED. In order to reduce the loss of 220 V, for its straightening, Schottky diodes are applied.
The blades will be from PVC pipe. The workpiece is drawn on the pipe, and then cut out the cutting disk. Scope of the screw should be about 50 cm, and the width is 10 cm. It is necessary to pull the sleeve with the flange under the size of the shaft of the shd. It is planted on the motor shaft and is attached with screws, plastic "screws" will be attached directly to the flanges. Also carry out balancing - from the ends of the wings, pieces of plastic are cut off, the angle of inclination is changed by heating and bending. In the device itself insert a piece of the pipe to which it is also attached by bolts. As for the electric fee, it is better to place it downstairs, and it takes power to it. From a stepper motor over 6 wires, which correspond to two coils. For them, current rings will be needed to transmit electricity from the movable part. By connecting all parts of each other, we turn to the testing of the structure, which will begin turnover at 1 m / s.
Windmill from Motor Wheel and Magnets
Not everyone knows that the wind generator from the motor-wheel can be collected with their own hands in a short time, the main thing is to be in advance the necessary materials. For him, the Rotor of Savonius is best suited, it can be purchased ready or independently. It consists of two half-cylindrical blades and overlap, of which the axis of rotation of the rotor is obtained. Material for their product Select yourself: wood, fiberglass or PVC pipe, which is the easiest and optimal option. We manufacture the place of connection of parts on which you need to do the mounting holes in accordance with the number of blades. A steel turning mechanism will be required so that the device can withstand any weather.
From ferrite magnets
The wind generator on magnets will be difficult to master in poorly angry masters, but you can still try. So, there must be four poles, each will be two ferrite magnets. It will cover them with a metal overlays of a thickness of a little less than a millimeter for the distribution of a more uniform stream. The main coils should be 6 pieces, rewinded with a thick wire and must be through each magnet, occupying space corresponding to the length of the field. The fastening of the winding patterns can be on the hub from the grinder, in the middle of which is installed in advance of the sharpening bolt.
The flow of energy supply of the height of fixing the stator over the rotor is regulated than it is higher, the smaller the sticking, respectively, the power decreases. For a windmill, you need to weld the support of the rack, and on the stator disk fix 4 large blades that you can cut out of the old metal barrel or the cover from the plastic bucket. For mid speed Rotation issues up to about 20 watts.
Windmill design on neodymium magnets
If you want to know about creating, you need to make the floor of the car hub with brake disks, such a choice is quite acquitted, because it is powerful, reliable and well balanced. After you see the hub from paint and dirt, go to the arrangement of neodymium magnets. They will be required by 20 pieces on the disk, the size should be 25x8 millimeters.
Magnets need to be placed, taking into account the alternation of the poles, it is better to create a paper template before gluing, or to dig lines dividing the disc on the sector to not confuse the poles. It is very important that they, standing apart opposite each other, were with different poles, that is, they attracted. Glue their super-glue. Raise borders on the edges of the discs, and in the center wound your tape or clamp a plasticine to prevent spreads. In order for the product to work with maximum return, the stator coil should be calculated correctly. An increase in the number of poles leads to an increase in the frequency of the current in the coils, due to this, the device even with a low frequency of turnover gives greater power. Winding coils is carried out by thicker wires, in order to reduce resistance to them.
When the main part is ready, the blades are made, as in the previous case and fix them to the mast, which can be made of ordinary plastic pipe with diameter - 160 mm. In the end, our generator working on the principle of magnetic levitation, with a diameter of one and a half meters and six wings, 8m / s is capable of providing up to 300 W.
Disappointment or expensive vane
Today there are many options to make a device for converting wind energy, each method is effective in its own way. If you are familiar with the method of manufacturing equipment generating energy, it will not matter on the basis of which to do it, the main thing is that it will be answered by the planned scheme, and yielded good power at the output.
It came to mind simple, obvious, but ingenious thought. After all, if you consider that the stepper motor is not only a motor that provides mechanical work absolutely different devices (From the printers of scanners and other office equipment, ending with various units applied in more serious devices). The stepping motor can also serve as an excellent electricity generator!
And his most important plus in everything is that it is not at all necessary for big turnover, it may well work fine at low loads. That is, even with a minimal action of the force directed to it, the stepper engine perfectly produces energy. The most important thing is that this energy is quite enough for various needs, such as lighting the road by a biker using a lantern connected to a stepping motor.
Unfortunately with the usual generator, the standard bike is still needed initial speed, before the flashlight starts to emit rays enough bright light for clear lighting of the path. But when using a stepper motor, this lack is removed by itself, that is, the lighting will be supplied immediately as soon as the wheel is rotated.
But the truth of this miracle design will still have a number of shortcomings. For example, the most clear of them is a great magnetic sticking. But in fact it is not so scary for a cyclist.
What starting work, we will need to find some details:
1) Actually the stepping motor itself.
2) large capacitance paternal capacitors.
3) LED lights
4) Voltage stabilizer 5-6 volts.
Find a stepper engine is quite simple due to the fact that it is very common in all office devices. The only thing you need to understand is that the larger the stepper engine, respectively, it is better for us.
It will also describe and present several models of stepper motors and various options for their mounting to the iron horse.
To start, take the most large Enginethat managed to get the author. He dismantled him from an ordinary office plotter for printing (in fact, this is a printer, only several times more).
Externally, the engine is quite large.
But before proceeding to the study of the stabilization scheme as well as the power scheme, it is worth paying attention to the method of fastening this unit to cycle.
If you look at the drawing, you will understand that the generator is located closer to the axis of the wheel and the rotation is transmitted from the additional circle.
And yet, since the bicycle model has each other and someone does not want to damage the frame with self-drawing, you will need to develop the fastening itself as well as a circle of rotation, the options here really a lot.
If you do not imagine how to fasten a large stepping engine to the design, there is a smaller option:
You can only choose the option of the generator suitable for the sizes of your vehicle.
Well when with stepper engines figured out, you can proceed to lanterns and nutrition chains.
Lanterns need to take LED. The straightening scheme will look like this: a block of rectifier diodes, several large capacitance capacitors and a natural voltage stabilizer. In principle, this is a standard power scheme.
The stepper motor standard has four wiring on the output, which correspond to two coils. It is for this reason that the rectifier block is also two. This homemade electricity generator may well produce up to 50 volts voltage on large revolutions, so that the capacitors are better to take appropriate (voltage above 50). Well, the stabilizer to voltage is 5-6 volts.
And so what is the essence of homemade, and why did she need it?
It's all about its advantage, even just touching the way, the path will be brightly lit by the lantern, driven from our stepper engine, and he is the generator.
I would also like to note that in the process of movement, the flashlight will not flash or flash- lighting will be smooth and smooth.
