To improve the efficiency of large turbines, many operators have turned to a rather small, 58-mm dia. absolute encoder from Denmark’s Leine&Linde. The Model 500 series of Incremental and absolute encoders provide speed and positioning feedback to controls in nacelles. Siemens wind turbines, for example, use a pulse encoder on each rotor blade and one to track where the turbine is pointing. The main control system uses position information to optimize generator speed.
Heidenhain Corp
heidenhain.com
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