公开(公告)号：US3703680A

公开(公告)日：1972-11-21

申请号：US3703680D

申请日：1971-02-08

Applicant: ASEA AB

Inventor： FRANK KJELL ,  JOHANSSON LENNART

IPC: G05F1/573 ,  H02J3/18 ,  G05F1/68

CPC classification number: H02J3/1892 ,  G05F1/573 ,  H02J3/1828 ,  Y02E40/30

Abstract: A capacitor bank for alternating current networks has a number of parallel branches each of which is connected by antiparallelconnected thyristors to the network. There is a control device for each thyristor which, when the bank is fully loaded, connects the thyristors in one conducting direction or the other in synchronism with the maximum of the network voltage in such direction. Each branch of the bank can be recharged by the full load during each half-period of the network voltage. Upon the occurrence of reduced load on the bank, the control devices emit current pulses to connect the thyristor switches in one direction or the other of the maxima of the network voltage in such direction for recharging. These latter pulses are emitted at a frequency which is substantially less thaN the network frequency.

Abstract translation: 用于交流网络的电容器组具有多个并联支路，每个支路通过反并联连接的晶闸管连接到网络。 每个晶闸管都有一个控制装置，当该组件满载时，在一个导通方向上或另一个导通方向上，以这种方向与网络电压的最大值同步连接晶闸管。 银行的每个分支可以在网络电压的每个半周期内由满载充电。 在存储器上发生负载减小时，控制装置发射电流脉冲，以将该晶闸管开关沿网络电压的最大值的一个方向或另一个方向连接在这样的方向上用于再充电。 这些后面的脉冲以基本上小于网络频率的频率发射。