Semiconductor switching circuit

Colin Davidson; Ikenna EFIKA; David Trainer

Semiconductor switching circuit

Colin Davidson (Inventor), Ikenna EFIKA (Inventor), David Trainer (Inventor)

Electronic And Electrical Engineering

Research output: Patent

Abstract

A semiconductor switching circuit, for use in a HVDC power converter, includes a main current branch including a main semiconductor switching element through which current flows when the main semiconductor switching element is switched on; and an auxiliary current branch connected in parallel or inverse-parallel with the main current branch. The auxiliary current branch includes an auxiliary circuit having a plurality of active auxiliary semiconductor switching elements connected to form an active switching bridge, and the auxiliary current branch further includes an energy storage device and/or an impedance device. The active switching bridge has a control unit operatively connected therewith, and the control unit is configured to switch the active switching bridge to connect the auxiliary circuit into and out of circuit with the main current branch and thereby selectively create an alternative current path whereby current flowing through the main current branch is diverted to flow through.

Original language	English
Patent number	US2017126015A1
IPC	H02J4/00
Priority date	10/06/14
Filing date	9/06/15
Publication status	Published - 4 May 2017

Keywords

HVDC power converter
semiconductor switching element

Access to Document

https://worldwide.espacenet.com/patent/search/family/050928033/publication/US2017126015A1?q=US20170126015A1

4 Patent

中华人民共和国国家知识产权局: Fault Protection for Voltage Source Converters
Davidson, C. (Inventor), EFIKA, I. (Inventor) & Trainer, D. (Inventor), 9 Nov 2018, IPC No. H02J3/36, H02M1/32, H02M7/483, Patent No. CN108781035A, 1 Mar 2017, Priority date 1 Mar 2017, Priority No. EP2017054711W
Research output: Patent

Open Access
Semiconductor switching circuit
Davidson, C. (Inventor), EFIKA, I. (Inventor) & Trainer, D. (Inventor), 13 Sept 2017, IPC No. H02J4/00, H02M7/483, H02M7/7575, H02M2001/344, H02M2007/4835, Y02E60/60, Patent No. EP2955837B1, 10 Jun 2014, Priority date 10 Jun 2014, Priority No. EP14275134.6A
Research output: Patent

Open Access
Semiconductor switching circuit
Davidson, C. (Inventor), EFIKA, I. (Inventor) & Vershinin, K. (Inventor), 8 Jun 2016, IPC No. H02J3/36, H03K17/12, H03K17/567, H03K17/722, Patent No. EP3029834A1, 3 Dec 2014, Priority date 3 Dec 2014, Priority No. EP14275250
Research output: Patent

Open Access

Cite this

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title = "Semiconductor switching circuit",

abstract = "A semiconductor switching circuit, for use in a HVDC power converter, includes a main current branch including a main semiconductor switching element through which current flows when the main semiconductor switching element is switched on; and an auxiliary current branch connected in parallel or inverse-parallel with the main current branch. The auxiliary current branch includes an auxiliary circuit having a plurality of active auxiliary semiconductor switching elements connected to form an active switching bridge, and the auxiliary current branch further includes an energy storage device and/or an impedance device. The active switching bridge has a control unit operatively connected therewith, and the control unit is configured to switch the active switching bridge to connect the auxiliary circuit into and out of circuit with the main current branch and thereby selectively create an alternative current path whereby current flowing through the main current branch is diverted to flow through.",

keywords = "HVDC power converter, semiconductor switching element",

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AU - Trainer, David

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Y1 - 2017/5/4

N2 - A semiconductor switching circuit, for use in a HVDC power converter, includes a main current branch including a main semiconductor switching element through which current flows when the main semiconductor switching element is switched on; and an auxiliary current branch connected in parallel or inverse-parallel with the main current branch. The auxiliary current branch includes an auxiliary circuit having a plurality of active auxiliary semiconductor switching elements connected to form an active switching bridge, and the auxiliary current branch further includes an energy storage device and/or an impedance device. The active switching bridge has a control unit operatively connected therewith, and the control unit is configured to switch the active switching bridge to connect the auxiliary circuit into and out of circuit with the main current branch and thereby selectively create an alternative current path whereby current flowing through the main current branch is diverted to flow through.

AB - A semiconductor switching circuit, for use in a HVDC power converter, includes a main current branch including a main semiconductor switching element through which current flows when the main semiconductor switching element is switched on; and an auxiliary current branch connected in parallel or inverse-parallel with the main current branch. The auxiliary current branch includes an auxiliary circuit having a plurality of active auxiliary semiconductor switching elements connected to form an active switching bridge, and the auxiliary current branch further includes an energy storage device and/or an impedance device. The active switching bridge has a control unit operatively connected therewith, and the control unit is configured to switch the active switching bridge to connect the auxiliary circuit into and out of circuit with the main current branch and thereby selectively create an alternative current path whereby current flowing through the main current branch is diverted to flow through.

KW - HVDC power converter

KW - semiconductor switching element

M3 - Patent

M1 - US2017126015A1

Y2 - 2015/06/09

ER -

Semiconductor switching circuit

Abstract

Keywords

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Research output

中华人民共和国国家知识产权局: Fault Protection for Voltage Source Converters