公开(公告)号：US3573603A

公开(公告)日：1971-04-06

申请号：US3573603D

申请日：1969-08-04

Applicant: ASEA AB

Inventor： ANDERSSON JERKER

IPC: H02H9/00 ,  H02J3/36 ,  H02M7/757 ,  H02M1/18

CPC classification number: H02H9/005 ,  H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: In a static converter which includes a delay angle control device, a control amplifier for controlling the delay angle control device, and an arrangement for blocking the converter. In order to provide for rapid starting of the converter a limiting member for limiting the delay angle of the converter so as to limit the direct voltage of the converter is controlled by the output signal of the blocking device over a switch delaying circuit. A transient order device is also connected to the input side of the control amplifier to increase the input signal of the amplifier and the transient order device is actuated by the blocking means for the DC transmission line connected to the converter. An under-voltage sensitive device actuated by the voltage in an AC network connected to the converter is connected in parallel to the blocking device, and the two parallel devices are connected to the limiting member and the transient order device by an OR gate.