Wind Turbine Inverter Systems (PnP)

What is a Wind Turbine?

A wind turbine is a device that converts wind power (kinetic energy) into electricity. As the blades are turned by the wind, power is generated and sent back to the grid via a grid tie inverter. Turbines vary, some turn at a constant velocity with adjustable blade angles to make the most of the available wind speed, others turn at a varied rate with the wind available and rely on electronic devices such as Inverters to sync to the grid.

GIF Wind Turbine

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What Happens to Energy Made by Wind Turbines?

The power generated by the turbine is fed through one of the systems we sell as a kit either to be fed back into the grid, which will require you to sign up to a ‘Feed-in Tariff’ or a storage bank. Once the engineer has installed your Wind Turbine Kit, you will need to sign up to the MCS scheme within 10 days. At this point, you will be issued with a certificate allowing you to claim the payments from FIT.

An alternative or additional option for smaller systems, such as vertical wind turbines, is to store the excess energy in battery banks. This tech is becoming more popular and can be used for times where increased demands need to be met, or for power outages. If you are using the wind power to power a residence you may use the battery storage to continue providing power at times when the wind drops.

Money Turbine

Why is Wind Turbine Power becoming more popular?

With the decline in availability of Fossil Fuels and therefore the increase in prices, alternative sources of energy are becoming more popular. Also, the very nature of the energy that can be harnessed makes the renewable energy more desirable, it is after all renewable and not a finite resource.

Are there different types of Wind Turbine?

Horizontal Axis Wind Turbines

Feature a number of blades, sometimes fixed, or on the larger Turbines adjustable to allow for the generation of electricity in lower or higher wind speeds. The rotor is connected to a gearbox and in turn a motor which generates the electricity. This will then be connected to one of our kits which will turn the electricity generated into something with which you can generate an income.

Vertical Turbine

Vertical Axis Wind Turbines

These wind turbines resemble an egg beater with vanes tuned to generate maximum speed at specific wind speeds. They also tend to be used in environments with far higher wind speeds, and harsher conditions than the horizontal variant. Our kits work well with Vertical Wind Turbine systems and can be built in compact modules to allow for use in smaller or more remote locations.

Horizontal Turbine

Horizontal Turbine

Do I need an Inverter For Wind Turbines? If So, Can I Upgrade?

Wind turbines are basically a fan working in reverse. Rather than electricity providing power to the fan to turn it, the wind energy is fed through a gearbox which then turns a motor/generator which in turn produces electricity. The electricity produced is in DC so needs to be fed through an Inverter which in turn converts the electricity into AC which can be fed back into the Grid.

Our wind turbine Inverter kits utilise the latest in 6 or 12 pulse AFE technology (25kW- 2MW) allowing for unity Power Factors to be maintained. Many wind turbines only generate at a fixed speed relative to the frequency of the grid either 50Hz or 60Hz. This limits the efficiency at lower wind speeds and may not be able to generate at all. With an AFE (Active Front End) the motor generates at any speed up to the full working speed of the rotor. This can either be induction or permanent magnet motor. This increases the generating duty at lower wind speeds and can harvest the power more effectively. The optimum blade rotation speed can be set correctly the generate the most amount of power out of the given wind speed, unlike fixed synchronous systems.

The AFE is compliant to G59-3 and ensures that the generator does not run in an ‘island’ situation The AFE has inductive and capacitive components that filter out any switching noise or harmonic distortion.

A new standard G99 ‘Requirements for the connection of generation equipment in parallel with public distribution networks’ connections made after 26th April 2019 must comply with this new document.

Upgrade packages can be developed and retrofitted to old or existing turbine equipment which may have failed or those proving difficult to maintain. Old fixed speed or capacitor controlled load switching can be modified for AFE control.

How much Power is Generated by Wind Turbines?

This can be very difficult to quantify. Power generated by wind turbines varies depending on several factors. The swept area of the blades and the annual average wind speed of the site are the two most major factors. There can be other attributes of the landscape that have an effect such as hills, buildings, even other wind turbines. If you would like an estimate, we can visit your site and go through your requirements and provide a report that will include estimates on efficiency and expected power output.

Hills Turbine

Why Should I Use ACDC Drives For My Wind Turbine Kit?

We have a lot of experience within the renewables field and its specialist requirements. We have provided complete packages for Wind Turbines of varying sizes from 30kW up to 1MW and having built container based solutions which have been ‘plug and play’ for remote sites we have the relevant experience to be able to help, whatever the requirements of with your project.

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