公开(公告)号：US3746966A

公开(公告)日：1973-07-17

申请号：US3746966D

申请日：1972-01-20

Applicant: ASEA AB

Inventor： TOROK V ,  SKOOG H

IPC: H02M7/162 ,  H02P7/292 ,  H02M1/08

CPC classification number: H02M7/1626 ,  H02P7/293 ,  Y10S388/93

Abstract: Disclosed herein is a current control system for a static converter. The converter has an inductive load object connected to its DC terminals and has a plurality of controllable rectifiers with a firing pulse generator connected to the rectifiers for supplying firing pulses thereto in a predetermined commutation sequence. The control system has a current sensing device for sensing the DC load current of the converter. A function generator computes, on the basis of this current, during each interval between consecutive firing pulses, a predicted load current value. This predicted value at each moment during one of said intervals corresponds to the load current, which is obtained during the next one of said intervals, if the next firing pulse in the commutation sequence is supplied at that moment. The predicted value is compared with a current reference value. When these two quantitites become equal the next firing pulse is supplied.

Abstract translation: 本文公开了一种用于静态转换器的电流控制系统。 该转换器具有连接到其直流端子的感性负载物体，并且具有多个可控整流器，其中连接到整流器的点火脉冲发生器以预定的换向序列提供点火脉冲。 控制系统具有用于感测转换器的直流负载电流的电流感测装置。 函数发生器基于该电流在连续点火脉冲之间的每个间隔期间计算预测的负载电流值。 如果在该时刻提供换向序列中的下一个触发脉冲，则在所述间隔期间的每个时刻的该预测值对应于在所述间隔的下一个期间获得的负载电流。 将预测值与当前参考值进行比较。 当这两个量子相等时，提供下一个点火脉冲。