wind

In many countries, wind power generation system has become the backbone of today's energy infrastructure.Adopted according to the actual converter topology, the wind power generation system consists of one or more of the following subsystems:

• The machine side converter
• The network side converter
• Dc bus
• Brake chopper
• lever

Shown below are two of the most common type of wind power generation system to simplify topology: direct drive (DD) wind power generation system (figure 1);And with doubly-fed induction generator (DFIG) wind power generation system (figure 2).

figure1Direct drive wind power system diagram2The type with doubly-fed induction generator wind power generation system

In addition to the dc bus and the lever, it is necessary to select is IGBT power semiconductors, it needs a reliable gate drive to ensure that in the 15 years (minimum) can be carried out within the working life of trouble-free operation.Otherwise, the power will lead to expensive costs, not only because of the energy loss, also can produce maintenance and logistics costs, particularly in more remote areas.Power Integrations has designed highly reliable plug and play device, which has become the industry standard for wind Power generation system, for example2 sp0320,2 sp0325.

Usually, in variable speed wind power generation system (such as shown in the DD and DFIG system), the need to adopt variable propeller control to adjust the moving blade, to adapt to the actual system and wind conditions.These is analyzed.studying control converter is also used by including Power Integrations2 sc0108tIGBT drive nuclear products to drive of IGBT.