Lti Reenergy Gmbh

Peiseler Gmbh & Co. Kg

Christian Kleinen

Harald Wertz

Benedict Korischem

Andreas Bünte

Harry Gill

Olaf Schaupp

Jürgen Neumann

A pitch drive circuit that operates in an emergency mode, for a wind or water power plant. The circuit has at least one rectifier unit, at least one DC intermediate circuit, two inverter units and a pitch rotary current motor with motor trains that can be contacted on both sides. A first contact side of the motor trains is connected to a first inverter unit and a second contact side of the motor trains is connected to a second inverter unit. At least one switching element is connected to at least one contact side of the motor trains. In a normal operating mode of a first switching state of the switching element the motor trains can be energized via both inverter units, and in an emergency operating mode of a second switching state of the switching element, the motor trains can be energized via a single inverter unit.

Pitch motor drive circuit which can operate in emergency mode

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Gevelsberg, Germany

Christian Kleinen