IMPSA Wind has chosen the newest, most reliable and efficient technology for its wind turbines: DDPM WEC (Direct Drive Permanent Magnet – Wind Energy Converter).

Main characteristics:

• Turbines connected directly, without a speed increasing gearbox; this increases efficiency and reduces the need for maintenance.
• Variable speed multipole generator, with permanent magnet excitation; this provides high efficiency and low maintenance and does not consume reactive power.
• Control of inverter system with SVPWM output (Space Vector Pulse Width Modulation), IGBTs (Isolated Gate Bipolar Transistor) to monitor voltage, current, power factor and frequency; great flexibility.

Within this concept, IMPSA works with its own equipment model:

IMPSA – UNIPOWER ®

• UNIPOWER®, IMPSA´s patented design, minimizes the disadvantages of the traditional configuration of direct drive generators (size and weight), but keeping its main advantage (no gear box).
• UNIPOWER® merges in only one component the traditional functions of turbine and generator minimizing the active parts, reducing losses and dead time for maintenance.
• UNIPOWER® uses permanent magnets and variable speed pitch regulated power, optimizing the energy collection at every wind speed.

Equipment designed and manufactured by IMPSA Wind

• The electric generator and rotor drum are integrated in a unique piece to make up a functional component named UNIPOWER. This concept eliminates a large number of mobile parts, since the equipment does not use a gearbox. This integration reduces the turbine dimensions, the total weight of the machine, the costs and the noise and, in turn, improves efficiency, availability, reliability and, operation and maintenance costs.