公开(公告)号：US20190068081A1

公开(公告)日：2019-02-28

申请号：US16077258

申请日：2017-02-09

Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

Inventor： David Reginald TRAINER ,  Francisco Javier CHIVITE-ZABALZA ,  Konstantin VERSHININ ,  Robert WHITEHOUSE ,  Jonathan Christopher NICHOLLS

IPC: H02M7/487 ,  H02M1/32 ,  H02M7/757 ,  H02M7/5387

Abstract: A converter includes first and second DC terminals for connection to a DC network, limb(s) connected between the first and second DC terminals, and a controller. Each limb includes a phase element and DC side sub-converter(s). The phase element has switching elements and AC terminal(s) for connection to an AC network, the switching elements being switchable to selectively interconnect a DC side voltage at a DC side of the phase element and an AC side voltage at an AC side of the phase element, The DC side sub-converter(s) connected to the DC side of the phase element. The controller selectively controls the switching elements and the operation of each DC side sub-converter as a voltage synthesiser. The controller also controls the switching elements to provide a blocking voltage to limit or block the flow of a fault current between the AC and DC networks and through each limb.

公开(公告)号：US20190028021A1

公开(公告)日：2019-01-24

申请号：US16081440

申请日：2017-03-01

Applicant: General Electric Technology GmbH

Inventor： Javier Francisco CHIVITE-ZABALZA ,  David Reginald TRAINER ,  Jonathan Christopher NICHOLLS ,  Konstantin VERSHININ ,  Ikenna Bruce EFIKA ,  Francisco Jose MORENO MUNOZ ,  John Lewis OUTRAM ,  Rajaseker Reddy GINNAREDDY

IPC: H02M1/34 ,  H02J3/36 ,  H02J7/34 ,  H02M7/797

CPC classification number: H02M1/34 ,  H02J3/36 ,  H02J7/345 ,  H02M1/32 ,  H02M7/49 ,  H02M7/797 ,  H02M2001/325 ,  H02M2001/348 ,  H02M2007/4835 ,  Y02E60/60

Abstract: Fault protection of a voltage source converter is provided. An apparatus has a chain-link circuit in series with a director switch. The chain-link circuit includes cells including an energy storage element and cell switching elements connected with anti-parallel diodes. Each cell switching element has a cell switching element controller. The director switch includes director switch units, each having a director switching element and a director switch unit controller. Each cell switching element controller monitors for a fault current and turns-off its associated cell switching element and reports a fault event to a fault controller. Each director switch unit controller monitors for a fault current and reports a fault event to the fault controller but the director switch unit control keeps its associated director switching element turned-on. The fault controller monitors for reports of fault events to order the cell switching elements of at least some of the cells to turn-off.

公开(公告)号：US20180138821A1

公开(公告)日：2018-05-17

申请号：US15566813

申请日：2016-04-14

Applicant: General Electric Technology GmbH

Inventor： Francisco Jose MORENO MUNOZ ,  Konstantin VERSHININ

IPC: H02M7/06 ,  H02M7/08

CPC classification number: H02M7/064 ,  H02M7/08 ,  H02M7/483 ,  H02M2001/0029 ,  H02M2007/4835

Abstract: A voltage source converter comprises a converter limb including first and second DC terminals for connection to a DC network. Each converter limb includes first and second limb portions which are separated by an AC terminal for connection to an AC network. Each limb portion includes a switching element connected with a chain-link converter that is operable to provide variable voltage. The voltage source converter includes a control unit to switch the switching element in each of the first and second limb portions between conducting and non-conducting configurations to selectively switch the corresponding chain-link converter, each switching element while in its non-conducting configuration transitions between a non-voltage supporting state and a voltage supporting state; and operate each chain-link converter while switched out of circuit to generate a varying voltage waveform to reduce the voltage range the corresponding switching element is exposed to in its voltage supporting state.

公开(公告)号：US20180374770A1

公开(公告)日：2018-12-27

申请号：US15563033

申请日：2016-03-29

Applicant: General Electric Technology GmbH

Inventor： Colin Charnock DAVIDSON ,  Konstantin VERSHININ

IPC: H01L23/367 ,  H01L23/40 ,  H01L23/473 ,  H01L25/07 ,  H05K1/02 ,  H02M7/00 ,  H05K7/20

Abstract: An electrical assembly including a primary electrical component having a semiconductor device, a primary heat sink having the primary electrical component mounted thereon to provide a heat sink for said primary electrical component, a secondary electrical component electrically connected or coupled with the primary electrical component, a secondary heat sink having the secondary electrical component mounted thereon to provide a heat sink for said secondary electrical component, wherein the primary heat sink and the secondary heat sink are physically releasably couplable to one another and, when coupled, the primary and secondary heat sinks are thermally coupled by abutment of heat transfer surfaces of the primary and secondary heat sinks.

公开(公告)号：US20180323777A1

公开(公告)日：2018-11-08

申请号：US15764885

申请日：2016-09-27

Applicant: GENERAL ELECTRIC TECHNOLOGY GmbH

Inventor： Konstantin VERSHININ

IPC: H03K17/10 ,  H02M1/088 ,  H02M1/34 ,  H02J3/36

CPC classification number: H03K17/105 ,  H02J3/36 ,  H02M1/088 ,  H02M1/34 ,  H02M2001/348

Abstract: A semiconductor switching string includes series-connected semiconductor switching assemblies, each having a main semiconductor switching element that, when switched on, conducts current flow from a first terminal to a second terminal, and that, while turning off, transitions from a reverse recovery mode in which a reverse recovery current flows from the second terminal to the first terminal to a blocking mode in which no current flows. Each main semiconductor switching element has an active auxiliary circuit, each including an auxiliary semiconductor switching element and a resistive element. Each control unit is connected with each auxiliary semiconductor switching element. Each control unit switches a respective auxiliary semiconductor switching element into a conducting state to divert current through the corresponding resistive element. Each control unit having the auxiliary semiconductor switching elements in their conducting state simultaneously while each main semiconductor switching element is operating in reverse recovery mode or blocking mode.

公开(公告)号：US20180069543A1

公开(公告)日：2018-03-08

申请号：US15549640

申请日：2016-02-11

Applicant: General Electric Technology GmbH

Inventor： Konstantin VERSHININ ,  Jonathan NICHOLLS

IPC: H03K17/10 ,  H02M1/088 ,  H02M1/32 ,  H02M7/483 ,  H03K17/082 ,  H03K17/689 ,  H01H33/59

CPC classification number: H03K17/102 ,  H01H33/596 ,  H02H3/20 ,  H02M1/088 ,  H02M1/32 ,  H02M7/483 ,  H03K17/0828 ,  H03K17/10 ,  H03K17/107 ,  H03K17/689

Abstract: An apparatus and methods of breaking a circuit using a switch are disclosed. In an example, a variable voltage is applied across a switch, which comprises a series connection of switching elements which are individually controllable between a blocking state and a conductive state. The state of the switching elements is controlled such that at least a portion of switching elements are in the blocking state, and fewer switching elements are in the blocking state when the applied voltage magnitude is low than when the applied voltage magnitude is high.