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1. 发明申请

US20220337064A1 ELECTRICAL ASSEMBLY 有权
公开(公告)号：US20220337064A1
公开(公告)日：2022-10-20
申请号：US17641074
申请日：2020-09-03
申请人： General Electric Technology GmbH
发明人： Pablo BRIFF , Huy Quoc Si DANG , Richard ZHANG
IPC分类号： H02J3/36 , H02M1/00 , H02M7/483 , G01R19/00
摘要： There is provided an electrical assembly comprising a converter (20) for connection to an electrical network (40), the converter (20) comprising at least one module (44) including at least one switching element (46) and at least one energy storage device (48), the or each switching element (46) and the or each energy storage device (48) in the or each module (44) arranged to be combinable to selectively provide a voltage source, the electrical assembly including a controller (54) configured to selectively control the switching of the or each switching element (46) in the or each module (44), wherein the electrical assembly includes a sensor (56a) configured for measuring a current of the electrical network (40), wherein the controller (54) and sensor (56a) are configured to operate in coordination to carry out a characterisation of an electrical parameter of the electrical network (40) so that, in use: the controller (54) selectively controls the switching of the or each switching element (46) in the or each module (44) to modify an electrical parameter of the converter (20) so as to modify the current of the electrical network (40); the sensor (56a) measures a resultant modified current of the electrical network (40); and the controller (54) processes the measured resultant modified current of the electrical network (40) so as to characterise the electrical parameter of the electrical network (40).

2. 发明申请

US20210249969A1 VOLTAGE SOURCE CONVERTER 有权
公开(公告)号：US20210249969A1
公开(公告)日：2021-08-12
申请号：US17270814
申请日：2019-08-19
申请人： General Electric Technology GmbH
发明人： Pablo Ariel BRIFF , Huy Quoc Si DANG , Richard S. ZHANG , Guillaume DE PREVILLE , Stéphane Pierre BREHAULT , Omar JASIM
IPC分类号： H02M7/483 , H02M1/42
摘要： In the field of high voltage direct current (HVDC) transmission, a voltage source converter comprises first and second DC terminals that are for connection to a DC network. The voltage source converter also includes at least one converter limb. The or each converter limb extends between the first and second DC terminals and includes first and second limb portions that are separated by a respective AC terminal for connection to a corresponding phase of an AC network. Each first limb portion extends between the first DC terminal and a corresponding AC terminal, and each second limb portion extends between the second DC terminal and the corresponding AC terminal. Each limb portion includes a respective chain-link converter which is defined by a plurality of series-connected switching modules which are operable in combination to provide a stepped variable voltage source. In addition the voltage source converter also includes a control apparatus that is configured to coordinate operation of the chain-link converters to cause an exchange of power between the DC and AC networks. The control apparatus evaluates the combined performance of the switching modules within at least one chain-link converter and acts to modify the coordinated operation of the chain-link converters when the combined performance of the switching modules becomes degraded to a predetermined extent.

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