公开(公告)号：US3699425A

公开(公告)日：1972-10-17

申请号：US3699425D

申请日：1971-05-07

Applicant: ASEA AB

Inventor： HERMANSSON BO ,  THORBORG KJELD

IPC: H02M7/525 ,  H02M ,  G05F

CPC classification number: H02M7/525

Abstract: A single or multiphase converter connection includes a controlled first converter having an AC side and a DC side. A first reactor connects the DC side to a DC source. A capacitor is connected to the AC side of the first converter. A controlled current circuit is formed of a second reactor and controlled rectifiers connected to the second reactor to control the current therethrough. A control means is provided for firing said rectifiers with an adjustable delay angle so that the current circuit generates a variable capacitive current.

Abstract translation: 单相或多相转换器连接包括具有AC侧和DC侧的受控第一转换器。 第一个电抗器将直流侧连接到直流电源。 电容器连接到第一转换器的AC侧。 受控电流电路由连接到第二反应器的第二反应器和受控整流器形成以控制其中的电流。 提供了一种控制装置，用于以可调节的延迟角来点燃所述整流器，使得电流电路产生可变电容电流。

公开(公告)号：US3684945A

公开(公告)日：1972-08-15

申请号：US3684945D

申请日：1971-02-08

Applicant: ASEA AB

Inventor： HERMANSSON BO ,  HANSSON CURT

IPC: H02M7/155 ,  H02M7/757 ,  H02P7/292 ,  H02M1/02 ,  H02P

CPC classification number: H02M7/757 ,  H02M7/1557 ,  H02P7/293

Abstract: A reversible converter for feeding a DC load such as a motor from an AC network has a current regulator which is supplied with a signal representing the actual value of the direct current and a desired value. The regulator is connected both to an emitter for delivering control pulses to the rectifier with a control angle which is dependent on the output voltage of the current regulator, and to a device for switching the polarity of the converter depending on the polarity of the desired current value, which causes a retarding of the converter towards inverter operation before shifting of the polarity of the converter, unblocking and advancing towards rectifier operation. A member which senses the voltage over the DC load is connected to the current regulator when the polarity of the inverter is shifted and delivers to it a signal corresponding to a control angle of the control pulses such that the sum of the inner direct voltage of the converter and the voltage over the DC load is slightly less than zero.

Abstract translation: 用于从AC网络馈送诸如电动机的DC负载的可逆转换器具有电流调节器，其被提供有表示直流电的实际值和期望值的信号。 调节器连接到发射器，用于将控制脉冲传送到整流器，其具有取决于电流调节器的输出电压的控制角，以及用于根据期望电流的极性切换转换器的极性的装置 值，其在转换器的极性移位之前导致转换器向逆变器操作的延迟，解除阻塞并向整流器操作前进。 当反相器的极性偏移时，感测直流负载上的电压的部件连接到电流调节器，并将与控制脉冲的控制角相对应的信号传递给控制脉冲的内部直流电压之和 转换器和直流负载上的电压略小于零。