公开(公告)号：US20230291204A1

公开(公告)日：2023-09-14

申请号：US18013837

申请日：2021-06-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Bo Yin ,  Kouroush Nayebi ,  Torsten Lund

IPC: H02J3/18 ,  H02J3/38

CPC classification number: H02J3/18 ,  H02J3/381 ,  H02J2203/10 ,  H02J2300/28

Abstract: Aspects of the present invention relate to a method for controlling a plurality of renewable energy generators. The method comprises: determining preliminary reactive power set points for the generators based on a reactive power reference value; determining generator-based and voltage-based reactive power limits for the generators; generating dispatch signals for requesting reactive power from the generators based on the preliminary set point and the limits; and dispatching the dispatch signals to the generators. The generator-based reactive power limits correspond to the reactive power capability of the generator. The voltage-based limits are determined by: determining a terminal voltage of the generator; comparing the determined terminal voltage to a voltage limit; and determining the voltage-based reactive power limit based on the comparison.

公开(公告)号：US12241454B2

公开(公告)日：2025-03-04

申请号：US18263879

申请日：2022-01-20

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Bo Yin ,  Torsten Lund ,  Gert Karmisholt Andersen ,  Kouroush Nayebi ,  Manoj Gupta

IPC: F03D7/00 ,  F03D7/02 ,  H02J3/18

Abstract: The invention relates to wind turbines, particularly to controlling reactive power exchange between a power grid and a wind power plant. The wind power plant has a plurality of wind turbine generators each having a corresponding power converter with a converter controller. Further, the wind power plant has a power plant transformer with an on load tap changer coupled between the wind power plant and the power grid. The power plant controller is regulating the on load tap changer and is generating reactive component setpoints for the wind turbine generators, when determining a need for production of short-term reactive power due to a sudden change in reactive power measured at the point of common coupling.