公开(公告)号：US10447028B2

公开(公告)日：2019-10-15

申请号：US15563009

申请日：2016-03-30

Applicant: General Electric Technology GmbH

Inventor： Robin Gupta ,  Robert Whitehouse ,  Carl Barker

IPC: H02H7/12 ,  H02J3/36 ,  H02H1/00 ,  H02M1/32 ,  H02M5/458 ,  H02M7/32 ,  H02H7/125

Abstract: A converter apparatus and methods of operation thereof are disclosed. In an example, a converter unit of a bipole converter apparatus comprising a neutral connection having a breaker switch is disclosed. In the event of a DC fault, the fault condition may be monitored and it is determined whether a breaker switch operation condition is met. The breaker switch is opened when the breaker switch operation condition is met. In one example, the breaker switch operation condition may comprise a current level.

公开(公告)号：US10218180B2

公开(公告)日：2019-02-26

申请号：US15558717

申请日：2016-02-19

Applicant: General Electric Technology GmbH

Inventor： Robin Gupta ,  Carl Barker ,  Andrzej Adamczyk

IPC: H02P1/46 ,  H02J3/36 ,  H02M1/36 ,  G05F3/08

Abstract: Methods and apparatus for controlling a voltage source converter to energize a DC link. A voltage order generating module generates a voltage order for controlling the voltage source converter to generate a DC voltage on the DC link. the voltage order is based on a time varying voltage reference signal. A voltage reference module, which may include a ramp generator generates the time varying voltage reference signal such that the rate of change of the voltage reference signal changes over time. The rate of change of the voltage reference signal may decrease over time, to become more gradual as the nominal operating voltage is reached to avoid over-voltages.