公开(公告)号：US20150028826A1

公开(公告)日：2015-01-29

申请号：US14356882

申请日：2011-11-07

Applicant: ALSTOM Technology Ltd.

Inventor： Colin Charnock Davidson ,  David Riginald Trainer ,  Nnamdi Okaeme

IPC: H02M3/158 ,  H02M1/08

CPC classification number: H02M3/158 ,  H02H7/268 ,  H02J3/36 ,  H02M1/08 ,  H02M1/32 ,  H02M2007/4835 ,  Y02E60/60

Abstract: There is a control circuit comprising first and second DC terminals for connection to a DC network, the first and second DC terminals having a plurality of modules and at least one energy conversion element connected in series therebetween to define a current transmission path, the plurality of modules defining a chain-link converter, each module including at least one energy storage device, the or each energy storage device being selectively removable from the current transmission path to cause a current waveform to flow from the DC network through the current transmission path and the or each energy conversion element and thereby remove energy from the DC network, the or each energy storage device being selectively removable from the current transmission path to modulate the current waveform to maintain a zero net change in energy level of the chain-link converter.

Abstract translation: 存在包括用于连接到DC网络的第一和第二DC端子的控制电路，所述第一和第二DC端子具有多个模块和至少一个在其间串联连接的能量转换元件，以限定当前的传输路径， 限定链式转换器的模块，每个模块包括至少一个能量存储装置，所述或每个能量存储装置可选地从当前传输路径移除，以使电流波形从DC网络流过当前传输路径，并且 或每个能量转换元件，从而从DC网络去除能量，所述或每个能量存储装置可选择性地从当前传输路径移除，以调制电流波形，以维持链式转换器的能量级别的零净变化。