Wind energy

Wind power, an infinite source of energy

People have been making use of wind power for hundreds of years. Whilst in earlier times, windmills were used for milling grains or as sawmills, nowadays state-of-the-art wind turbines harvest electricity from the power of the wind. Wind power, as a renewable energy, is acquiring a central role in the energy mix of more and more countries. Since wind is available all over the world, wind power is a mainstay of the global energy supply.According to data from the World Wind Energy Association (WWEA), electricity is already being generated from wind power in 100 countries. Energy generation from wind power is being expanded dramatically in Western Europe, Asia and North America, in particular, as well as in offshore regions, in order to cover the rising energy demands of countries in these regions.

The power electronics control and regulate the generated electricity in such a way that it can always be fed to the public power grid with the correct line frequency and quality. Wind turbine designs must provide maximum availability to contribute to grid stability, which applies most importantly to the wind power converters.

Power semiconductors play a key role in the generation of energy from renewable sources. In wind turbines, power semiconductors convert electricity and couple the generator to the grid. A wind power converter in a wind turbine controls several essential functions apart from transfer power and therefore requires power semiconductors of the highest quality.Whilst the intensity of power and thus of light produced by a bicycle dynamo varies depending on speed, in wind turbines power semiconductors are used to ensure that the energy transmission remains consistent in spite of fluctuating wind and generator speeds.

Performance Range

YAW & PITCH DRIVES

5kW – 100kW

Compact designs and high power density

High peak overload capabilities

Highest reliability and lifetime

SPARE PARTS & SERVICE

1MW – 15MW

Rongtech advanced power modules for maximum reliability and efficiency

Customized stacks for dedicated wind turbine converters

MAIN CONVERTER

1MW – 15MW

Compact designs and high power density

High reliability in harsh environments up to 1500VDC and 1000VAC

quadrant full power converter topology

Block diagram of a wind turbine with 2-quadrant inverter

quadrant full power converter topology

Block diagram of a wind turbine with 4-quadrant inverter