公开(公告)号：US09866109B2

公开(公告)日：2018-01-09

申请号：US14903245

申请日：2013-07-19

Applicant: ABB TECHNOLOGY LTD

Inventor： Jean-Philippe Hasler ,  Marcio De Oliveira

IPC: H02M1/42 ,  H02J3/16 ,  H02J3/18 ,  H02J3/26

CPC classification number: H02M1/4208 ,  H02J3/16 ,  H02J3/1857 ,  H02J3/1864 ,  H02J3/26 ,  Y02E40/12 ,  Y02E40/26 ,  Y02E40/34 ,  Y02E40/50

Abstract: A method is performed in a control device for controlling a power compensation arrangement including a voltage source converter and one or more power compensation branches, each power compensation branch including a thyristor controlled reactor, a thyristor switched reactor or a thyristor controlled capacitor. The voltage source converter and the one or more power compensation branches are connected to a same busbar. The method includes: detecting a request in an electrical power system to which the power compensation arrangement is connected; determining, based on the request, a need for reactive power supply to the electrical power system; providing reactive power by means of the voltage source converter and/or by one or more of the power compensation branches; and compensating, by means of the voltage source converter, any disturbances caused by the power compensation branches when providing the reactive power to the electrical power system. Corresponding devices are also disclosed.