Patent ID: 8668610
Filing Date: 2014-03-11
Classification: F03D,F05B,Y02E

Abstract:
1. An electro-hydraulic servo synchronizer for a megawatt (MW) wind turbine generator system, comprising a differential planetary drive mechanism and a direct drive volume control system, wherein the differential planetary drive mechanism comprises a planet carrier, a planet gear, a ring gear, a sun gear, and a control gear, the planet gear is mounted on the planet carrier, the planet gear meshes with the sun gear and the ring gear, respectively, a central shaft of the ring gear is connected with the control gear, an input of the planet carrier is an input shaft (I), an output of the sun gear is an output shaft (II), a central shaft of the control gear is a shaft (III); the direct drive volume control system comprises a constant displacement motor, a two-way constant displacement pump and a servo motor, the servo motor is connected with the two-way constant displacement pump, the two-way constant displacement pump is connected with the constant displacement motor, the constant displacement motor is connected with the shaft (III), so as to drive the control gear.