Block ip Trap

Next-generation blade pitch technology

15 Jan 2020

Mita-Teknik launched its blade pitch system for onshore and offshore wind turbines. The new Mita Pitch System has been designed to effectively minimize O&M costs, reduce downtime, and improve productivity. The Mita Pitch System is a flexible pitch solution for turbines up to 12MW, with a design life of 30 years. It has been designed to maximize the availability and performance of wind turbines, while applying minimum loads to the structure. High availability is ensured by fast commissioning, a Built-In-Self-Test scheme for on-the-fly evaluation, simple maintenance procedures, and digitalization. The system features a modular pitch design with integrated drives, based on various standardized sizes of Hub Units, Blade Units, brushless PM Servo Motors, Asynchronous Servo Motors as well as energy storage based on either ultracapacitors or long life VRLA batteries. It is designed as an open system allowing OEMs to integrate their own software in the hub controller. This robust system has been designed to sustain the harsh environment of the rotating wind turbine hubs and can deal with operating temperatures ranging from -22 °F to 140 °F (-30 °C to 60 °C), as well as continuous vibrations and forces. By removing the traditional "cabinet in cabinet" approach, Mita-Teknik was able to maximize the system reliability, avoiding high ambient temperatures inside the cabinet. The Mita Pitch System offers innovative features such as ruggedized IP65 seawater resistant aluminum housings, smart energy management extending component service life, as well as touchless blade angle monitoring.

Mita-Teknik |



Volume: 2020 January/February