公开(公告)号：US20190234378A1

公开(公告)日：2019-08-01

申请号：US16256189

申请日：2019-01-24

Applicant: General Electric Company

Inventor： Zhuohui Tan ,  Yang Liu ,  Wenguang Pan

IPC: F03D7/04 ,  H02P9/30 ,  F03D9/25

Abstract: The present disclosure provides a wind power generation system, which comprises a wind turbine for generating mechanical energy; a generator for converting the mechanical energy into electrical energy; a converter for converting the electrical energy to expected power for supplying to a grid, wherein a rotor of the generator is connected to converter, an output of a stator of the generator and an output of a converter are both connected to the grid; a controller for controlling the converter to absorb rotor-side reactive power Qrotor and to increase line-side reactive power Qline, so as to meet a reactive power demand of the grid, when a rotor speed is less than a predetermined value.

公开(公告)号：US10731631B2

公开(公告)日：2020-08-04

申请号：US16256189

申请日：2019-01-24

Applicant: General Electric Company

Inventor： Zhuohui Tan ,  Yang Liu ,  Wenguang Pan

IPC: F03D7/04 ,  F03D9/25 ,  H02J3/50 ,  H02J3/38 ,  H02P9/30 ,  H02P101/15

Abstract: The present disclosure provides a wind power generation system, which comprises a wind turbine for generating mechanical energy; a generator for converting the mechanical energy into electrical energy; a converter for converting the electrical energy to expected power for supplying to a grid, wherein a rotor of the generator is connected to converter, an output of a stator of the generator and an output of a converter are both connected to the grid; a controller for controlling the converter to absorb rotor-side reactive power Qrotor and to increase line-side reactive power Qline, so as to meet a reactive power demand of the grid, when a rotor speed is less than a predetermined value.