Method for operating converter circuit and apparatus for implementing the method
    1.
    发明专利
    Method for operating converter circuit and apparatus for implementing the method 有权
    用于操作转换器电路的方法和实现方法的装置

    公开(公告)号:JP2009232682A

    公开(公告)日:2009-10-08

    申请号:JP2009068249

    申请日:2009-03-19

    CPC classification number: H02M7/48

    Abstract: PROBLEM TO BE SOLVED: To specify a method for operating a converter circuit, and reduce thereby a harmonic component in system voltages of an AC voltage system connected with the converter circuit. SOLUTION: In the converter circuit which has a converter 2 having a large number of drivable power semiconductor switches and has a three-phase AC voltage system 1, the drivable power semiconductor switches are driven by means of a drive signal S A formed from a control signal S R , and the control signal S R is formed by adjusting an H-th harmonic component i NH of system currents to a system current set point value i NHref . In order to reduce a harmonic component in the system voltages, the system current set point value i NHref is formed by adjusting an H-th harmonic component of system voltages to a predeterminable system voltage set point value u NHref , the control difference from the H-th harmonic component of the system voltages and the system voltage set point value u NHref being weighted by a system impedance y NH determined with respect to the H-th harmonic component. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:指定用于操作转换器电路的方法,从而减少与转换器电路连接的AC电压系统的系统电压中的谐波分量。 解决方案:在具有大量可驱动功率半导体开关的转换器2和具有三相交流电压系统1的转换器电路中,可驱动功率半导体开关借助于驱动信号S R 形成的控制信号S R 通过调节H次谐波分量i NH < / SB>到系统当前设定值i NHref 。 为了降低系统电压中的谐波分量,通过将系统电压的H次谐波分量调整到可预定的系统电压设定点值u'来形成系统电流设定值i NHref SB> NHref ,由系统电压的H次谐波分量和系统电压设定值u NHref 的控制差由系统阻抗y NH < / SB>相对于H次谐波分量确定。 版权所有(C)2010,JPO&INPIT

    Method of operating converter circuit and apparatus for carrying out its method
    2.
    发明专利
    Method of operating converter circuit and apparatus for carrying out its method 审中-公开
    运行转换器电路的方法和实现方法的装置

    公开(公告)号:JP2009219346A

    公开(公告)日:2009-09-24

    申请号:JP2009038985

    申请日:2009-02-23

    CPC classification number: H02M7/53873

    Abstract: PROBLEM TO BE SOLVED: To reduce a harmonic component in an alternating-current system voltage connected to a converter circuit.
    SOLUTION: The converter circuit has a converter unit 1 with a plurality of drivable power semiconductor switches and is connected to a three-phase alternating-current main line system, the drivable power semiconductor switches are driven by a driving signal formed from a control signal S
    R , and the control signal S
    R is formed by adjusting an H-th harmonic component i
    NH of the system current to a system current set point value i
    NHref and specifies a method to actuate the converter circuit regarding H as 1, 2, 3, .... In order to reduce the harmonic component of system voltage, the system current set point value i
    NHref is formed by adjusting the absolute value of an H-th harmonic component u
    NH of the system voltage to the absolute value of a prescribable system voltage set point value u
    NHref .
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:减少连接到转换器电路的交流系统电压中的谐波分量。 解决方案:转换器电路具有转换器单元1,具有多个可驱动的功率半导体开关,并连接到三相交流主线系统,该驱动功率半导体开关由一个驱动信号 控制信号S R ,控制信号S R 是通过将系统电流的H次谐波分量i NH 调整为 系统电流设定值i NHref ,并指定一个将H转换为1,2,3,...的方法。为了降低系统电压的谐波分量,系统电流 设定点值i NHref 是通过将系统电压的H次谐波分量u NH 的绝对值调整为规定系统电压设定点的绝对值 值u NHref 。 版权所有(C)2009,JPO&INPIT

    3.
    发明专利
    未知

    公开(公告)号:AT431004T

    公开(公告)日:2009-05-15

    申请号:AT06775187

    申请日:2006-09-14

    Applicant: ABB SCHWEIZ AG

    Abstract: The inventive method comprises the steps of introducing a reactive current reference square wave, detecting load voltage changes at every change in the reactive current reverence wave, and determining whether the detected load voltage changes exceed a predefined islanding detection threshold value, indicating a loss of mains and an islanding operation of the power generator. With the inventive loss of mains detection, islanding can be detected within a shortest period of time, even if the local islands active and reactive load matches exactly the distributed generators active and reactive power generation. So even without a sudden voltage change, unintentional islanding can immediately be detected and control electronics can safely turn of the distributed power generator.

    4.
    发明专利
    未知

    公开(公告)号:DE50110759D1

    公开(公告)日:2006-09-28

    申请号:DE50110759

    申请日:2001-09-25

    Applicant: ABB SCHWEIZ AG

    Abstract: The device has a drive unit coupled to a generator and connected via a rectifier to a d.c. intermediate circuit, a static converter connected to the intermediate circuit with multiple a.c. output connections and a filter arrangement connected to the a.c. output connections. The filter arrangement has series filter inductances per output and a filter capacitance connected to their junction. The filter capacitors are connected to a star point. The device has a drive unit coupled to a generator (1) and connected via a rectifier (2) to a d.c. intermediate circuit (3), a static converter (4) connected to the d.c. intermediate circuit with multiple a.c. output connections (5) and a filter arrangement (6) connected to the a.c. output connections. The filter arrangement has a first filter inductance (7) per a.c. voltage connection, a second filter inductance (8) in series and a filter capacitance (9) connected to their junction. The filter capacitors are connected to a star point (10).

    METHOD FOR OPERATION OF A CONVERTER CIRCUIT AND APPARATUS FOR CARRYING OUT THE METHOD

    公开(公告)号:CA2750304C

    公开(公告)日:2016-03-22

    申请号:CA2750304

    申请日:2010-01-14

    Applicant: ABB SCHWEIZ AG

    Abstract: A method is specified for operation of a converter circuit, with the converter circuit having a converter unit (2) with a multiplicity of controllable power semiconductor switches, and being connected via a transformer to a three-phase electrical AC voltage power supply system (1), in which method the controllable power semiconductor switches are controlled by means of a control signal (S A) which is formed from a regulating signal (S R). In order to damp oscillations of a power supply system voltage (u G) above the fundamental frequency, a filtered power supply system current (i GTP) is formed by filtering a power supply system current (i G) using a low-pass filter characteristic, a filtered transformer inductance voltage (u LTTP) is formed by filtering a transformer inductance voltage (u LT), which is formed from the power supply system current (i G), using a low-pass filter characteristic, a filtered power supply system voltage (u GTP) is formed by filtering a power supply system voltage (U G) using a low-pass filter characteristic, and the regulating signal (S R) is formed by addition of a regulator voltage (U R), the filtered transformer inductance voltage (u LTTP) and the filtered power supply system voltage (U GTP), with the regulator voltage (U R) being formed by regulating the filtered power supply system current (i GTP) at a power supply system current nominal value (i Gref). Furthermore, an apparatus is specified for carrying out the method.

    METODO PARA LA ACTUACION DE UN CIRCUITO DE CONVERTIDOR, ASI COMO DISPOSITIVO PARA LA REALIZACION DEL METODO.

    公开(公告)号:ES2333996T3

    公开(公告)日:2010-03-03

    申请号:ES08152989

    申请日:2008-03-19

    Applicant: ABB SCHWEIZ AG

    Abstract: Método para la actuación de un circuito de convertidor, en el que el circuito de convertidor presenta una unidad de convertidor (2) con una pluralidad de conmutadores semiconductores de potencia que se pueden controlar y está unido con una red de tensión alterna eléctrica trifásica (1), en el que los conmutadores semiconductores de potencia que se pueden controlar se controlan mediante una señal de control (SA) formada por una señal de regulación (SR) y la señal de regulación (SR) se forma por regulación de un H-avo contenido de armónicos de corrientes de la red (iNH) hasta un valor teórico de corriente de la red (iNHref), en el que H = 1, 2, 3,..., caracterizado porque el valor teórico de corriente de la red (i NHref) se forma por regulación de un H-avo contenido de armónicos de tensiones de la red (u NH) hasta un valor teórico de tensión de la red (u NHref) que se puede predefinir, en el que la variable activa (uNHdif) a partir del H-avo contenido de armónicos de las tensiones de la red (uNH) y el valor teórico de tensión de la red (uNHref) se pondera por una impedancia de la red (yNH) determinada con respecto al H-avo contenido de armónicos.

    8.
    发明专利
    未知

    公开(公告)号:DE502008000177D1

    公开(公告)日:2009-12-17

    申请号:DE502008000177

    申请日:2008-03-19

    Applicant: ABB SCHWEIZ AG

    Abstract: The method involves operating a converter circuit which has an inverter (2) with a variety of controllable power switches and is connected to a three-phase alternating current electric power (1). The current power being a H-th harmonic component of mains power (UNH) is formed of a predetermined power. An error signal is provided from the H-system harmonic component of mains power and the power is weighted with respect to the H-th harmonic component network impedance (yNH). An independent claim is included for device for carrying out the method.

    METHOD FOR OPERATING A CONVERTER CIRCUIT AND APPARATUS FOR IMPLEMENTING THE METHOD

    公开(公告)号:CA2657251C

    公开(公告)日:2016-08-23

    申请号:CA2657251

    申请日:2009-03-09

    Applicant: ABB SCHWEIZ AG

    Abstract: The invention specifies a method for operating a converter circuit, the converter circuit having a converter unit (2) with a large number of drivable power semiconductor switches and with a three--phase electrical AC voltage system, in which the drivable power semiconductor switches are driven by means of a drive signal (SA) formed from a control signal ((SR), and the control signal (SR) is formed by adjusting an H-th harmonic component of system currents (i NH) to a system current setpoint value (i NHref), where H=1, 2, 3, .... In order to reduce a harmonic component in the system voltages, the system current setpoint value (i NHref is formed by adjusting an H-th harmonic component of system voltages (u NH) to a predeterminable system voltage setpoint value (U NHref), the control difference (U nHdiff) from the H-th harmonic component of the system voltages (U NH) and the system voltage setpoint value (U NHref) being weighted by a system impedance (Y NH) determined with respect to the H-th harmonic component. In addition, the invention specifies an apparatus for implementing the method.

    METHOD FOR OPERATION OF A CONVERTER CIRCUIT AND APPARATUS FOR CARRYING OUT THE METHOD

    公开(公告)号:CA2750304A1

    公开(公告)日:2010-07-29

    申请号:CA2750304

    申请日:2010-01-14

    Applicant: ABB SCHWEIZ AG

    Abstract: A method for operating a converter circuit is specified, wherein the converter circuit has a converter unit (2) with a plurality of drivable power semiconductor switches and is connected to a three-phase electrical AC voltage network (1) by means of a transformer, in which method the drivable power semiconductor switches are driven by means of a drive signal (SA) formed from a control signal (SR). In order to attenuate oscillations of a network voltage (UG) above the fundamental frequency, a filtered network current (iGTP) is formed by means of filtering according to a low-pass characteristic of a network current (iG), a filtered transformer inductance voltage (ULTTP) is formed by means of filtering according to a low-pass characteristic of a transformer inductance voltage (uLT) formed from the network current (iG), a filtered network voltage (UGTP) is formed by means of filtering according to a low-pass characteristic of a network voltage (uG), and the control signal (SR) is formed by adding a controller voltage (uR), the filtered transformer inductance voltage (ULTTP) and the filtered network voltage (UGTP), wherein the controller voltage (uR) is formed by adjusting the filtered network current (iGTP) to a desired network current value (iGref). An apparatus for carrying out the method is also specified.

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