• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Get free circuit help 24/7

New Projects | Privacy Policy | About us | Contact | Disclaimer | Copyright | Videos 

You are here: Home / Solar Controllers / Simple Vertical Axis Wind Turbine Generator Circuit

Simple Vertical Axis Wind Turbine Generator Circuit

Last Updated on December 24, 2021 by Swagatam 8 Comments

The post explains a simple vertical axis wind turbine generator circuit using ready made high power generator dynamo and a vertical axis wind turbine mechanism. The idea was requested by Mr. Taibani.

Circuit Objectives and Requirements

Hope you're doing well. Firstly thanks for all the great knowledge & information you have given here its really appreciated. I am trying to do a project of home made low RPM VAWT generator which can generate enough power to run one small scale factory

I need your help on winding section.

1) Correct copper winding design for low rpm.

2) Correct copper wire gauge.

3) Number of turns of winding.

4) What core material should be used for low drag ( Lenz effect ).

Please help me out & your readers with your great knowledge.

The Design

Designing a VAWT motor is not easy and might require good expertise in the field and at the moment for me this looks much complex and I have little idea regarding the same.

However for any layman the idea could be easily implemented through a ready made generator as described below:

Below is an example of a 10,000 watt dynamo which could be used for the proposed vertical axis wind turbine generator application

VAWT Motor
caution electricity can be dangerous

Instead of winding a vertical axis wind generator yourself, a simpler idea would be to configure the VAWT mechanism with a high watt generator or a dynamo through a correctly calculated gear or pulley/belt  ratio.

For example, the above shown 10 kv dynamo has a specifications of generating 10000 watt at around 3600 RPM, which implies that if the a pulley ratio of 1:100 is configured, the dynamo would be able to produce the rated amount of power with the VAWT rotating at just around 36 RPM, which could be achieved perhaps even at wind speeds as low as 5km per hour.

How to Set Up the Turbines

The following diagram shows a rough set up design for the above explained implementation:

How to Set Up the VAWT Turbines

The figure above shows a simple vertical axis wind turbine model, the vertical helical turbine is designed to capture wind flow on one half of its span while allow free flow on the other half, causing the propeller to initiate a rotational movement with high torque.

Being vertical in its positioning the VAWT does not rely on wind directions unlike the traditional horizontal axis wind turbines. This advantage makes the VAWT sustain its operations under all wind conditions regardless of its direction of flow.

The central vertical axis of the turbine can be seen attached with a gigantic flywheel, which is supposed to be a lot bigger than the wheel attached with the generator shaft.

The bigger the ratio, the bigger would be the conversion even at minimal wind speeds.

With a ratio of 1:100, the generator could be expected to be generating at its full capacity and specification, with the VAWT moving at a meager 50 RPM or even less. This speed could be in turn achieved at wind speeds not exceeding 5 to 10 miles per hour.

Controlling VAWT speed using Shunt Regulator Circuit

The above explained set up is for facilitating efficient conversions at low wind speeds, but what happens when the wind is rapid or during stormy conditions.

If this situation is not taken care of can easy rip-of the generator winding and burn it within no time.

In order to control the VAWT speed at dangerous wind speeds, the following shunt regulator circuit could be used with the output of the generator for achieving a constant speed on the generator and the VAWT.

Controlling VAWT speed using Shunt Regulator Circuit

In the above figure the generator output is applied to a high current triac shunt regulator network through a 50 amp bridge rectifier module.

The value of the zener diode determines the control threshold, which is shown as 220V in the diagram. It means under no circumstances the voltage from the generator can exceed the 220V mark, and if it does the excess power is simply shunted or shorted to ground via the triac.

This ensures a controlled rotation of the generator even at formidable wind speeds keeping the entire system stabilized and safe.

The above simple VAWT voltage regulator circuit could be also built using a MOSFET shunt regulator circuit as depicted in the following diagram.

The working principle is same as above. When the VAWT output voltage tends to rise above the 220 V mark, the 220V zener begins conducting, which in turn switches ON the MOSFET. The MOSFET then begins conducting causing a momentary short circuit across the VAWT output. This causes the voltage to drop below 220V switching off the MOSFET. The cycle now keeps repeating continuously, enabling a constant 220V to the connected load.

If the generator used is a  3 phase type of generator, the shunt regulator shown above could be replaced with a 3 phase shunt regulator using SCRs.

High Efficiency VAWT Turbine Design

Instead of employing roundish blades for the turbine, we can probably use a sharply angled blades for ensuring better aerodynamic efficiency, and for more effective wind capture and deflection, as shown below.

If you have any doubts regarding the discussed vertical axis wind turbine generator circuit, do feel free to express them through comments

You'll also like:

  • 1.  Simple FM Radio Circuit Using a Single Transistor
  • 2.  Connecting MPPT with Solar Inverter
  • 3.  Simple Solar Garden Light Circuit – With Automatic Cut Off
  • 4.  Simple ESR Meter Circuit
  • 5.  2 Simple Arduino Temperature Meter Circuits Explored
  • 6.  Make a Football Electricity Generator Circuit

About Swagatam

I am an electronic engineer (dipIETE ), hobbyist, inventor, schematic/PCB designer, manufacturer. I am also the founder of the website: https://www.homemade-circuits.com/, where I love sharing my innovative circuit ideas and tutorials.
If you have any circuit related query, you may interact through comments, I'll be most happy to help!

Have Questions? Please Comment below to Solve your Queries! Comments must be Related to the above Topic!!

Subscribe
Notify of
8 Comments
Newest
Oldest
Inline Feedbacks
View all comments


Primary Sidebar

Categories

  • 3-Phase Power (15)
  • 324 IC Circuits (19)
  • 4017 IC Circuits (52)
  • 4060 IC Circuits (26)
  • 555 IC Circuits (99)
  • 741 IC Circuits (20)
  • Arduino Engineering Projects (83)
  • Audio and Amplifier Projects (118)
  • Battery Chargers (83)
  • Car and Motorcycle (96)
  • Datasheets (77)
  • Decorative Lighting (Diwali, Christmas) (33)
  • Electronic Components (101)
  • Electronic Devices and Circuit Theory (36)
  • Electronics Tutorial (120)
  • Fish Aquarium (5)
  • Free Energy (34)
  • Fun Projects (14)
  • GSM Projects (9)
  • Health Related (20)
  • Heater Controllers (30)
  • Home Electrical Circuits (106)
  • How to Articles (20)
  • Incubator Related (6)
  • Industrial Electronics (28)
  • Infrared (IR) (40)
  • Inverter Circuits (98)
  • Laser Projects (12)
  • LED and Light Effect (95)
  • LM317/LM338 (21)
  • LM3915 IC (25)
  • Meters and Testers (67)
  • Mini Projects (152)
  • Motor Controller (67)
  • MPPT (7)
  • Oscillator Circuits (25)
  • PIR (Passive Infrared) (8)
  • Power Electronics (35)
  • Power Supply Circuits (81)
  • Radio Circuits (10)
  • Remote Control (48)
  • Security and Alarm (64)
  • Sensors and Detectors (127)
  • SG3525 IC (5)
  • Simple Circuits (75)
  • SMPS (29)
  • Solar Controllers (62)
  • Timer and Delay Relay (54)
  • TL494 IC (5)
  • Transformerless Power Supply (8)
  • Transmitter Circuits (41)
  • Ultrasonic Projects (16)
  • Water Level Controller (45)

Calculators

  • AWG to Millimeter Converter
  • Battery Back up Time Calculator
  • Capacitance Reactance Calculator
  • IC 555 Astable Calculator
  • IC 555 Monostable Calculator
  • Inductance Calculator
  • LC Resonance Calculator
  • LM317, LM338, LM396 Calculator
  • Ohm’s Law Calculator
  • Phase Angle Phase Shift Calculator
  • Power Factor (PF) Calculator
  • Reactance Calculator
  • Small Signal Transistor(BJT) and Diode Quick Datasheet
  • Transistor Astable Calculator
  • Transistor base Resistor Calculator
  • Voltage Divider Calculator
  • Wire Current Calculator
  • Zener Diode Calculator

© 2023 · Swagatam Innovations

wpDiscuz