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

SEMICONDUCTOR SWITCHING CIRCUIT A semiconductor switching circuit (10), for use in a HVDC power converter, comprises: a main current branch (12) including a main semiconductor switching element (16) and through which current flows when the main semiconductor switching element (16) is switched on; an auxiliary current branch (14) connected in parallel or inverse-parallel with the main current branch (12), the auxiliary current branch (14) including an auxiliary circuit (18), the auxiliary circuit (18) including a plurality of active auxiliary semiconductor switching elements (22) connected to form an active switching bridge, the auxiliary current branch (14) further including an energy storage device (24) and/or an impedance device (20), the active switching bridge having a control unit (26) operatively connected therewith, the control unit (26) being configured to switch the active switching bridge to connect the auxiliary circuit (18) into and out of circuit with the main current branch (12) and thereby selectively create an alternative current path via the auxiliary current branch (14) whereby current flowing through the main current branch (12) is diverted to flow through the alternative current path to regulate one or more of current flowing through the main semiconductor switching element (16) and voltage appearing across the main semiconductor switching element (16), wherein the control unit (26) is configured to switch the active switching bridge to arrange the alternative current path to selectively pass through the energy storage device (24) and/or impedance device (20). (Figure 1)

Original language	English
Patent number	WO2015189215A1
IPC	H02M7/483,H02M7/757
Priority date	10/06/14
Filing date	9/06/15
Publication status	Published - 17 Dec 2015

Keywords

semiconductor switching circuit
HVDC power converter

Access to Document

https://worldwide.espacenet.com/patent/search/family/050928033/publication/WO2015189215A1?q=WO2015189215A1

4 Patent

中华人民共和国国家知识产权局: Fault Protection for Voltage Source Converters
Davidson, C., EFIKA, I. & Trainer, D., 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., EFIKA, I. & Trainer, D., 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., EFIKA, I. & Trainer, D., 4 May 2017, IPC No. H02J4/00, Patent No. US2017126015A1, 9 Jun 2015, Priority date 10 Jun 2014, Priority No. EP14275134A
Research output: Patent

Open Access

Cite this

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title = "Semiconductor switching circuit",

abstract = "SEMICONDUCTOR SWITCHING CIRCUIT A semiconductor switching circuit (10), for use in a HVDC power converter, comprises: a main current branch (12) including a main semiconductor switching element (16) and through which current flows when the main semiconductor switching element (16) is switched on; an auxiliary current branch (14) connected in parallel or inverse-parallel with the main current branch (12), the auxiliary current branch (14) including an auxiliary circuit (18), the auxiliary circuit (18) including a plurality of active auxiliary semiconductor switching elements (22) connected to form an active switching bridge, the auxiliary current branch (14) further including an energy storage device (24) and/or an impedance device (20), the active switching bridge having a control unit (26) operatively connected therewith, the control unit (26) being configured to switch the active switching bridge to connect the auxiliary circuit (18) into and out of circuit with the main current branch (12) and thereby selectively create an alternative current path via the auxiliary current branch (14) whereby current flowing through the main current branch (12) is diverted to flow through the alternative current path to regulate one or more of current flowing through the main semiconductor switching element (16) and voltage appearing across the main semiconductor switching element (16), wherein the control unit (26) is configured to switch the active switching bridge to arrange the alternative current path to selectively pass through the energy storage device (24) and/or impedance device (20). (Figure 1)",

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

author = "Colin Davidson and Ikenna EFIKA and David Trainer",

note = "CPC H02J4/00 (US); H02M7/483 (EP,CN); H02M7/7575 (EP,CN); H02M2001/344 (EP,CN); H02M2007/4835 (EP,CN); Y02E60/60 (EP); Priorities EP14275134A·2014-06-10 Application EP2015062847W·2015-06-09 Publication WO2015189215A1·2015-12-17 Published as: CN106664037A; CN106664037B; EP2955837A1; EP2955837B1; US2017126015A1; WO2015189215A1; WO2015189215A1; H02M7/483,H02M7/757",

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AU - Trainer, David

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PY - 2015/12/17

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N2 - SEMICONDUCTOR SWITCHING CIRCUIT A semiconductor switching circuit (10), for use in a HVDC power converter, comprises: a main current branch (12) including a main semiconductor switching element (16) and through which current flows when the main semiconductor switching element (16) is switched on; an auxiliary current branch (14) connected in parallel or inverse-parallel with the main current branch (12), the auxiliary current branch (14) including an auxiliary circuit (18), the auxiliary circuit (18) including a plurality of active auxiliary semiconductor switching elements (22) connected to form an active switching bridge, the auxiliary current branch (14) further including an energy storage device (24) and/or an impedance device (20), the active switching bridge having a control unit (26) operatively connected therewith, the control unit (26) being configured to switch the active switching bridge to connect the auxiliary circuit (18) into and out of circuit with the main current branch (12) and thereby selectively create an alternative current path via the auxiliary current branch (14) whereby current flowing through the main current branch (12) is diverted to flow through the alternative current path to regulate one or more of current flowing through the main semiconductor switching element (16) and voltage appearing across the main semiconductor switching element (16), wherein the control unit (26) is configured to switch the active switching bridge to arrange the alternative current path to selectively pass through the energy storage device (24) and/or impedance device (20). (Figure 1)

AB - SEMICONDUCTOR SWITCHING CIRCUIT A semiconductor switching circuit (10), for use in a HVDC power converter, comprises: a main current branch (12) including a main semiconductor switching element (16) and through which current flows when the main semiconductor switching element (16) is switched on; an auxiliary current branch (14) connected in parallel or inverse-parallel with the main current branch (12), the auxiliary current branch (14) including an auxiliary circuit (18), the auxiliary circuit (18) including a plurality of active auxiliary semiconductor switching elements (22) connected to form an active switching bridge, the auxiliary current branch (14) further including an energy storage device (24) and/or an impedance device (20), the active switching bridge having a control unit (26) operatively connected therewith, the control unit (26) being configured to switch the active switching bridge to connect the auxiliary circuit (18) into and out of circuit with the main current branch (12) and thereby selectively create an alternative current path via the auxiliary current branch (14) whereby current flowing through the main current branch (12) is diverted to flow through the alternative current path to regulate one or more of current flowing through the main semiconductor switching element (16) and voltage appearing across the main semiconductor switching element (16), wherein the control unit (26) is configured to switch the active switching bridge to arrange the alternative current path to selectively pass through the energy storage device (24) and/or impedance device (20). (Figure 1)

KW - semiconductor switching circuit

KW - HVDC power converter

M3 - Patent

M1 - WO2015189215A1

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