公开(公告)号：EP2779345B8

公开(公告)日：2015-06-10

申请号：EP13159177.8

申请日：2013-03-14

Applicant: ABB Technology Oy

Inventor： Viitanen, Tero ,  Saarinen, Mikko

IPC: H02H7/122 ,  H02M7/487 ,  H02M1/32 ,  H02M1/38 ,  H02M7/797

CPC classification number: H02M7/797 ,  H02H7/1225 ,  H02M1/32 ,  H02M7/487 ,  H02M7/538 ,  H02M7/5387 ,  H02M7/53873 ,  H02M7/5395

公开(公告)号：EP3174205A1

公开(公告)日：2017-05-31

申请号：EP15196750.2

申请日：2015-11-27

Applicant: ABB Technology Oy

Inventor： Saarinen, Mikko ,  Oinonen, Markus

IPC: H03K17/16 ,  H03K17/082 ,  H02M1/00

CPC classification number: H03K17/567 ,  H02M1/08 ,  H02M2001/0009 ,  H02M2001/0029 ,  H02M2001/342 ,  H02M2001/346 ,  H03K17/0828 ,  H03K17/166 ,  H03K17/168 ,  H03K2217/0027 ,  Y02B70/1491

Abstract: A gate drive circuit adapted to control a power semiconductor component, the gate drive circuit comprising a gate driver connectable to a positive auxiliary voltage (V+) and to a negative auxiliary voltage (V-), the gate drive circuit comprising a feedback circuit having an inductive coupling element for providing a feedback signal, wherein one end of the feedback circuit having the inductive coupling element is connected to a known reference potential and the other end of the feedback circuit is connected to the gate driver, and the inductive coupling element is inductively coupled to the main current path of the power semiconductor component for providing feedback signal to the gate driver based on the change rate of the current of the power semiconductor component for limiting the change rate of the current of the power semiconductor component.

Abstract translation: 一种适用于控制功率半导体元件的栅极驱动电路，所述栅极驱动电路包括可连接到正的辅助电压（V +）和负的辅助电压（V-）的栅极驱动器，所述栅极驱动电路包括反馈电路，所述反馈电路具有 电感耦合元件，用于提供反馈信号，其中具有电感耦合元件的反馈电路的一端连接到已知参考电位，反馈电路的另一端连接到栅极驱动器，并且感应耦合元件感应地 耦合到功率半导体元件的主电流路径，用于基于用于限制功率半导体元件的电流的变化率的功率半导体元件的电流的变化率向栅极驱动器提供反馈信号。

公开(公告)号：EP3242391A1

公开(公告)日：2017-11-08

申请号：EP16168003.8

申请日：2016-05-03

Applicant: ABB Technology Oy

Inventor： Viitanen, Tero ,  Alahuhtala, Jarno ,  Saarinen, Mikko

IPC: H02M7/487 ,  G01R31/42 ,  G01R31/02

Abstract: A method for monitoring a change in a capacitance in an electric system, and an electric system comprising a multilevel inverter (10) and at least two capacitances (C1, C2) connected in series between a negative DC pole (dc-) and a positive DC pole (dc+) of the inverter, wherein the connection point between the capacitances is connected to one of the at least one middle DC pole (NP) of the inverter, and control means (11) configured to provide by the inverter an AC current component to one of the at least one middle DC pole (NP) of the inverter, which AC current component is distributed between the two capacitances connected to the middle DC pole, and monitor resulting AC voltage components in the two capacitances, and determine on the basis of a difference between the monitored AC voltage components a change in at least one of the two capacitances.

Abstract translation: 一种用于监视电力系统中的电容变化的方法，以及包括串联连接在负极DC极（dc-）和正极之间的多电平逆变器（10）和至少两个电容（C1，C2）的电气系统 其中，所述电容器之间的连接点连接到所述逆变器的所述至少一个中间DC电极（NP）中的一个;以及控制装置（11），其被配置为通过所述逆变器向所述逆变器提供AC电流 组件连接到逆变器的至少一个中间直流电极（NP）中的一个，该交流电流分量分布在连接到中间直流电极的两个电容之间，并且监测两个电容中产生的交流电压分量， 监测的AC电压分量之间的差异的基础是两个电容中的至少一个的变化。