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公开(公告)号：US3582755A
公开(公告)日：1971-06-01
申请号：US3582755D
申请日：1969-10-09
Applicant: ASEA AB
Inventor： LISS GOTE , EKSTROM AKE , LJUNGQVIST ROLF
CPC classification number: H02M7/7575 , Y02E60/60
Abstract: A static converter connecting an AC network with a DC line has a control system in which an AC control function voltage is derived from the AC network, while a DC regulator voltage is derived from a regulator. The control system further comprises a first arrangement for deriving the actual time between subsequent following control pulses for the valves of the converter and a second arrangement for deriving a desired value for said time corresponding to the relation between the period time of the AC network and number of pulses of the converter. The difference between said actual time and its desired value is stored in a memory circuit for each valve and as a correction magnitude taken together with the control function voltage and the regulator voltage.
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