Wind energy plant with a hydraulically actuated rotor brake and method for hydraulic control of a rotor brake

摘要

The control method involves pressurizing a brake cylinder (34) at a brake pressure (P-b) by one pressure reducing valve (30) in a first phase, and at a holding pressure (P-h) by another pressure reducing valve (46) in a second phase. Switchover between pressures is enabled using an actuation unit (44).