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    A COMPENSATING SYSTEM FOR MEDIUM OR HIGH VOLTAGE APPLICATIONS
    11.
    发明专利
    A COMPENSATING SYSTEM FOR MEDIUM OR HIGH VOLTAGE APPLICATIONS 未知

    公开(公告)号：CA2838880A1

    公开(公告)日：2012-12-13

    申请号：CA2838880

    申请日：2011-06-10

    Applicant: ABB TECHNOLOGY AG

    Inventor： HASLER JEAN-PHILIPPE

    IPC: H02J3/01 ,  H02J3/18

    Abstract: It is presented a compensating system (1) for a power system (2). The compensating system (1) comprises a compensator (3) comprising semiconductor switch means, which compensator (3) has phase legs (6-1, 6-2, 6-3) which on a first side (13) of the compensator (3) defines AC inputs for connection to a respective phase (11-1, 11-2, 11-3) of the power system (2), wherein the phase legs (6-1, 6-2, 6-3) are connected in wye connection at a second side (15) of the compensator (3), which wye connection has a neutral point (N); and a filter arrangement (9) which at a first side thereof is connected to the neutral point (N) of the wye connection and at a second side is connected to the AC inputs to thereby form a circuit (10) with the compensator (3), wherein the filter arrangement (9) is arranged such that the circuit (10) acts essentially as an open circuit for positive sequence currents or voltages and negative sequence currents or voltages, and as a closed circuit for zero-sequence currents, wherein the filter arrangement (9) is further arranged to block a zero-sequence current having a fundamental frequency and to allow a harmonic of the zero-sequence current to pass therethrough, whereby the harmonic of the zero-sequence current is able to flow through the closed circuit.

    AN ARRANGEMENT FOR EXCHANGING POWER
    14.
    发明专利
    AN ARRANGEMENT FOR EXCHANGING POWER 未知

    公开(公告)号：CA2763943A1

    公开(公告)日：2010-12-23

    申请号：CA2763943

    申请日：2009-06-18

    Applicant: ABB TECHNOLOGY AG

    Inventor： HASLER JEAN-PHILIPPE

    IPC: H02J3/18 ,  H02J3/01 ,  H02J3/26

    Abstract: An arrangement for exchanging power, in shunt connection, with a three-phase electric power network (1) comprises a Voltage Source Converter (5) having at least three phase legs (6-11) with each a series connection of switching cells (15). Each switching cell has at least two semiconductor assemblies (16, 17) connected in series and having each a semiconductor device (18) of turn-off- type and a rectifying element (19) connected in anti-parallel therewith and at least one energy storing capacitor (20). A control unit (41) is configured to control the semiconductor devices of each switching cell and to deliver a voltage across the terminals thereof being zero or U, in which U is the voltage across the capacitor. The control unit is also configured to calculate a value for amplitude and phase position for a second negative sequence-current or a zero-sequence voltage or a value of a dc current for which, when added to said three phase legs upon generation of a negative-sequence current, the resulting energy stored in the energy storing capacitors in each said phase leg will be constant and to control the semiconductor devices of said switching cells of the phase legs to add such a current or voltage to the currents and voltages, respectively, of each phase leg of the converter.

    METHOD AND ARRANGEMENT TO DETERMINE THE CELL CAPACITOR VOLTAGE OF A CELL OF A MULTI-CELL POWER CONVERTER
    15.
    发明专利
    METHOD AND ARRANGEMENT TO DETERMINE THE CELL CAPACITOR VOLTAGE OF A CELL OF A MULTI-CELL POWER CONVERTER 未知

    公开(公告)号：CA2759818C

    公开(公告)日：2016-11-01

    申请号：CA2759818

    申请日：2009-05-07

    Applicant: ABB TECHNOLOGY AG

    Inventor： CHIMENTO FILIPPO ,  DIJKHUIZEN FRANS ,  HASLER JEAN-PHILIPPE ,  HOSINI FALAH ,  JONSSON TOMAS ,  LUNDBERG PETER ,  MONGE MAURO ,  NORRGA STAFFAN ,  SVENSSON JAN ,  TINGLOW FREDRIK

    IPC: H02M7/49

    Abstract: An arrangement to determine a cell capacitor voltage value (U dc) of a cell (10") of a multi-cell power converter comprises the cell (10") and a control unit (28). The cell (10") itself comprises four power electronic valves (1-4) interconnected as a full-bridge converter having a first and a second phase leg, where each phase leg comprises a series-connection of two (1, 3; 2, 4) of the four power electronic valves and where the connection point (6; 7) between the two power electronic valves of each phase leg is externally connectable, a cell capacitor (5) being connected in parallel to the first and the second phase legs, and four gate units (16-19), each being connected to a corresponding one of the power electronic valves (1-4) as well as to the control unit (28). Each of the four gate units (16-19) comprises a voltage measurement unit (24-27) adapted to take a continuous voltage measurement across the corresponding power electronic valve, and each of the four gate units (16-19) is adapted to transmit its continuous voltage measurement. The control unit (28) is adapted to receive from each of the four gate units (16-19) its continuous voltage measurement and to determine the cell capacitor voltage value (U dc) based on at least one of these voltage measurements.

    METHOD FOR ENERGIZING A CHAIN-LINK CONVERTER, CONTROLLER, COMPUTER PROGRAMS AND COMPUTER PROGRAM PRODUCTS
    16.
    发明专利
    METHOD FOR ENERGIZING A CHAIN-LINK CONVERTER, CONTROLLER, COMPUTER PROGRAMS AND COMPUTER PROGRAM PRODUCTS 未知

    公开(公告)号：CA2838775C

    公开(公告)日：2016-08-16

    申请号：CA2838775

    申请日：2011-06-10

    Applicant: ABB TECHNOLOGY AG

    Inventor： HASLER JEAN-PHILIPPE

    IPC: H02M7/483 ,  H02J3/18 ,  H02M1/36

    Abstract: The invention relates to a method 60 in a controller 50 for energizing a chain-link converter 30 comprising one or more phase legs L1, L2, L3, each phase leg L1, L2, L3 comprising a number of series-connected converter cells 311, 312,..., 31n, each converter cell 311, 312,..., 31n comprising four valves arranged in an H-bridge connection with a DC capacitor 341, 342,..., 34n. Each valve in turn comprises a semiconductor switch 321, 322, 323, 324 in parallel with a diode 331, 332, 333, 334. The method 60 comprises the steps of: charging 61 the DC capacitor 341, 342,..., 34n of each converter cell 311, 312,..., 31n to a voltage level at which the semiconductor switches are controllable but below their nominal voltage; diagnosing 62 the converter cells 311, 312,..., 31n so as to detect failed components thereof; bypassing 63 faulty components in a controlled manner; charging 64 the DC capacitors 341, 342,..., 34n to their nominal voltage. The invention also relates to a controller, computer programs and computer program products.

    Method and controller for protecting a voltage source converter
    18.
    发明专利
    Method and controller for protecting a voltage source converter 未知

    公开(公告)号：AU2015243090A1

    公开(公告)日：2015-11-05

    申请号：AU2015243090

    申请日：2015-10-16

    Applicant: ABB TECHNOLOGY AG

    Inventor： HASLER JEAN-PHILIPPE ,  MONGE MAURO ,  DE OLIVEIRA MARCIO

    IPC: H02M7/483 ,  H02M1/32

    Abstract: Abstract A method performed by a controller for protection of a voltage source converter comprising one or more phases, each phase comprising a plurality of series-connected converter cells , each phase being 5 connected to an electrical power grid via a respective phase reactor, each converter cell comprising a by-pass switch for enabling by-pass thereof, the method comprising the steps of: - detecting an over voltage condition, and - controlling simultaneously the by-pass switches of each converter cell so as to bypass the converter cells 10 upon detection of such over-voltage condition, wherein the voltage source converter enters a passive mode upon the converter cells being bypassed, in which passive mode the respective phase reactor of the one or more phases absorbs inductive overcurrent caused by the detected overvoltage condition. 7014964 1 (GHMailers- P95381 A[ J 1 SARAHW 19/09/2015 Sl~a S2u S3 SnL 31 3233 2n V>V-x S102 82L2 S3L2 SnL2 81 4i3.n xI S1L3 S2L30-oS3L3 SnL3" Fig. 1 x1 V>Vm.. Fig. 2

    An arrangement for exchanging power
    19.
    发明专利
    An arrangement for exchanging power 未知

    公开(公告)号：AU2009348268B2

    公开(公告)日：2015-07-16

    申请号：AU2009348268

    申请日：2009-06-18

    Applicant: ABB TECHNOLOGY AG

    Inventor： HASLER JEAN-PHILIPPE

    IPC: H02M5/458 ,  H02J3/18

    Abstract: An arrangement for exchanging power with a three-phase electric power network comprises a Voltage Source Converter (5) having three phase legs (A-C) with each a series connection of switching cells. The three phase legs are interconnected by forming a delta-connection. The arrangement also comprises a control unit (19) configured to calculate a value for amplitude and phase position for a zero-sequence current for which, when circulated in the delta-connection circuit of said three phase legs, the balance of the total direct voltage of each of said three phase legs (A-C) with respect to the other two phase legs is restored will there be an unbalance and control the semiconductor devices of switching cells of the phase legs to add such a zero-sequence current to the currents of each phase leg of the converter.

    A multilevel converter and a method for controlling multilevel converter including balancing cell voltages
    20.
    发明专利
    A multilevel converter and a method for controlling multilevel converter including balancing cell voltages 未知

    公开(公告)号：AU2011379032B2

    公开(公告)日：2015-06-18

    申请号：AU2011379032

    申请日：2011-10-14

    Applicant: ABB TECHNOLOGY AG

    Inventor： HASLER JEAN-PHILIPPE ,  MONGE MAURO

    IPC: H02J3/18 ,  H02J3/26

    Abstract: A multilevel converter and a method for controlling a multilevel converter is provided. The multilevel converter is a single phase converter with one phase leg (1), or a three phase converter with three phase legs (1A-C), the phase legs of the three phase converter are interconnected in a star-configuration. The (1), or each (1A-C), phase leg comprises switching cells (11, 21),and each switching cell (11, 21) comprises semi-conductor switches (41, 51) arranged to selectively provide a connection to a corresponding energy storage element (42, 52). The converter also includes a controller (31), which is provided to monitor the DC voltage (VDC) of the energy storage elements (42, 52), and the controller (31) is provided to control the switching of each switching cell (11, 21). The phase leg (1) of the single phase converter, or each phase leg (1A-C) of the three phase converter, comprises two parallel branches (10, 20) of switching cells (11, 21), the branches (10, 20) being configured in a closed circuit. The method includes monitoring (105) the voltage levels of each of the energy storage elements, and balancing (107) the voltages of the energy storage elements, wherein the balancing includes circulating a current (104, 107) within the two branches of the (1), or each (1A-C), phase leg of the multilevel converter.

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