公开(公告)号：US20230344230A1

公开(公告)日：2023-10-26

申请号：US17832223

申请日：2022-06-03

申请人： VESTAS WIND SYSTEMS A/S

发明人： John Godsk NIELSEN ,  Torsten Lund ,  Hamid Soltani ,  Gert Karmishoit Andersen

IPC分类号： H02J3/16

CPC分类号： H02J3/16 ,  H02J2300/28

摘要： A grid side inverter system includes a grid side inverter, a phase locked loop controller arranged to determine a phase of a dq-frame dependent on a monitored grid voltage vector in the dq-frame and a reference grid voltage vector in the dq-frame, a current reference decision unit arranged to generate a reduction of at least one of an active and a reactive current reference, wherein a decision to generate the reduction is based on an electrical parameter relating to the phase difference of the monitored grid voltage vector and the PLL vector, a current controller arranged to determine control signals for the grid side inverter for controlling generation of active and reactive power to the grid dependent on the active and reactive current references and monitored active and a reactive grid currents in the dq-frame.