Temperature monitoring of parallel-connected inverter modules
    1.
    发明授权
    Temperature monitoring of parallel-connected inverter modules 有权
    并联逆变器模块的温度监控

    公开(公告)号:US06999329B2

    公开(公告)日:2006-02-14

    申请号:US11043188

    申请日:2005-01-27

    IPC分类号: H02M7/48

    CPC分类号: H02M7/493

    摘要: A method for operating parallel-connected inverter modules, wherein two or more inverter modules (A, B, C) are connected in parallel to feed the same load. Each inverter module has two or more output phases (u, v, w) for supplying electric power into a two or more phase load by determining the temperature (TAu, TAv, TAw, TBu, TBv, TBw, TCu, TCv, TCw) of each output phase (Au, Av, Aw, Bu, Bv, Bw, Cu, Cv, Cw) in each inverter module, comparing the temperatures of the output phases in each inverter module with the temperatures of the same output phase in other parallel-connected modules, and generating an alarm signal if the temperature of the output phase in an inverter module differs from the temperatures of the same output phase of the other inverter modules more than allowed by a predetermined limit.

    摘要翻译: 一种用于并联连接逆变器模块的方法,其中两个或更多个逆变器模块(A,B,C)并联连接以馈送相同的负载。 每个逆变器模块具有两个或多个输出相位(u,v,w),用于通过确定温度(T MAX),T MAX T,W B,T B,T B,T B,T B,T B, (Au,Av,Aw,Bu,Bv,Bw,Cu,Cv,Cw)的各输出相(T,C,T,C, 将每个逆变器模块中的输出相位的温度与其他并联模块中的相同输出相位的温度进行比较,并且如果逆变器模块中的输出相位的温度与相同输出的温度不同,则产生报警信号 其他逆变器模块的相位超过允许的预定极限。

    Electric drive system
    2.
    发明授权
    Electric drive system 有权
    电力驱动系统

    公开(公告)号:US07671548B2

    公开(公告)日:2010-03-02

    申请号:US11806641

    申请日:2007-06-01

    申请人: Osmo Pasuri

    发明人: Osmo Pasuri

    IPC分类号: H02P5/00 H02P1/54

    CPC分类号: H02P5/46

    摘要: An electric drive system comprising several electric drives, each of which comprises an electric motor, and a control system which is arranged to control said several electric drives and comprises a first outer controller and a first speed controller. A signal supplied to the input of the first speed controller is generated by using the output signal of said first outer controller, and the first speed controller is arranged to generate an output torque signal at its output. The control system further comprises a torque controller per each electric drive, which torque controller is arranged to control the torque of the corresponding electric motor. A signal supplied to the input of each torque controller is generated by using the output torque signal of the first speed controller.

    摘要翻译: 一种电驱动系统,包括多个电驱动器,每个电驱动器包括电动马达和控制系统,该控制系统被布置成控制所述多个电驱动器并且包括第一外部控制器和第一速度控制器。 通过使用所述第一外部控制器的输出信号产生提供给第一速度控制器的输入的信号,并且第一速度控制器被布置成在其输出处产生输出转矩信号。 控制系统还包括每个电驱动器的转矩控制器,该扭矩控制器被布置成控制相应电动机的转矩。 通过使用第一速度控制器的输出转矩信号来产生提供给每个转矩控制器的输入的信号。

    Electric drive system
    3.
    发明申请
    Electric drive system 有权
    电力驱动系统

    公开(公告)号:US20070290634A1

    公开(公告)日:2007-12-20

    申请号:US11806641

    申请日:2007-06-01

    申请人: Osmo Pasuri

    发明人: Osmo Pasuri

    IPC分类号: H02P5/00

    CPC分类号: H02P5/46

    摘要: An electric drive system comprising several electric drives, each of which comprises an electric motor, and a control system which is arranged to control said several electric drives and comprises a first outer controller and a first speed controller. A signal supplied to the input of the first speed controller is generated by using the output signal of said first outer controller, and the first speed controller is arranged to generate an output torque signal at its output. The control system further comprises a torque controller per each electric drive, which torque controller is arranged to control the torque of the corresponding electric motor. A signal supplied to the input of each torque controller is generated by using the output torque signal of the first speed controller.

    摘要翻译: 一种电驱动系统,包括多个电驱动器,每个电驱动器包括电动马达和控制系统,该控制系统被布置成控制所述多个电驱动器并且包括第一外部控制器和第一速度控制器。 通过使用所述第一外部控制器的输出信号产生提供给第一速度控制器的输入的信号,并且第一速度控制器被布置成在其输出处产生输出转矩信号。 控制系统还包括每个电驱动器的转矩控制器,该扭矩控制器被布置成控制相应的电动机的转矩。 通过使用第一速度控制器的输出转矩信号来产生提供给每个转矩控制器的输入的信号。

    Method in a wind power plant
    4.
    发明申请
    Method in a wind power plant 有权
    风力发电厂的方法

    公开(公告)号:US20060033339A1

    公开(公告)日:2006-02-16

    申请号:US11194706

    申请日:2005-08-02

    申请人: Osmo Pasuri

    发明人: Osmo Pasuri

    IPC分类号: F03D9/00 H02P9/04

    摘要: A method for preventing mechanical oscillation in a wind power plant, the method comprising the steps of determining wind speed, controlling a generator of the power plant with speed control when the wind speed is below a predefined limit to maintain the rotation speed of the generator below a predefined first limit, detecting the increase of wind speed above the predefined limit, controlling the electric drive of the wind power plant generator to torque control by using a predefined crossover torque in response to the wind speed increasing above a predefined limit, maintaining the crossover torque as the reference torque for the electric drive until the rotation speed of the generator has increased above a predefined second limit, and controlling the electric drive of the wind power plant generator with torque control while the rotation speed of the generator remains above the predefined second limit.

    摘要翻译: 一种用于防止风力发电厂中的机械振荡的方法,所述方法包括以下步骤:当风速低于预定极限时,通过速度控制来控制发电厂的发电机,以将发电机的转速保持在低于 预定义的第一限制,检测风速增加超过预定义的限度,通过响应于风速增加到预定义的极限以上,通过使用预定的交叉转矩来控制风力发电机发电机的电力驱动转矩控制,保持交叉 转矩作为电驱动器的参考转矩,直到发电机的转速增加到预定的第二极限以上,并且当发电机的转速保持高于预定的第二极限时,控制具有转矩控制的风力发电机发电机的电力驱动 限制。

    Method and arrangement in connection with electric device system
    5.
    发明授权
    Method and arrangement in connection with electric device system 有权
    与电气设备系统相关的方法和布置

    公开(公告)号:US08841872B2

    公开(公告)日:2014-09-23

    申请号:US13086971

    申请日:2011-04-14

    IPC分类号: H02P1/00 H02P25/22 H02J3/00

    CPC分类号: H02P25/22 H02J3/005

    摘要: A method and arrangement in connection with an electric drive system are provided. The electric drive system includes an intermediate circuit with two or more supply units and two or more inverter units connected thereto, and an electric machine having two or more three-phase windings galvanically separated from each other. Two or more inverter units are connected to the three-phase windings. The arrangement also includes first main circuit switches to galvanically separate each supply unit from a supply, second main circuit switches to galvanically separate each supply unit from the intermediate circuit, first intermediate circuit switches to galvanically separate each inverter unit from the intermediate circuit, and second intermediate circuit switches to galvanically separate each inverter unit from the electric machine.

    摘要翻译: 提供了与电驱动系统相关的方法和装置。 电驱动系统包括具有两个或更多个供电单元和连接到其上的两个或更多个逆变器单元的中间电路和具有彼此电流分离的两个或更多个三相绕组的电机。 两个或多个逆变器单元连接到三相绕组。 该装置还包括第一主电路开关,用于将每个电源单元与电源电气分离,第二主电路将电源单元与中间电路电气隔离,第一中间电路切换成将每个逆变器单元与中间电路电隔离, 中间电路开关将每个逆变器单元与电机电气分离。

    FAULT DIAGNOSTICS ARRANGEMENT FOR ELECTRIC DRIVE SYSTEM, AND ELECTRIC DRIVE SYSTEM
    6.
    发明申请
    FAULT DIAGNOSTICS ARRANGEMENT FOR ELECTRIC DRIVE SYSTEM, AND ELECTRIC DRIVE SYSTEM 审中-公开
    电驱动系统的故障诊断装置和电驱动系统

    公开(公告)号:US20110276279A1

    公开(公告)日:2011-11-10

    申请号:US13102564

    申请日:2011-05-06

    IPC分类号: G06F19/00

    CPC分类号: H04Q9/00 H04Q2209/30

    摘要: An exemplary electric drive system has a plural number of electric drive subsystems. Each subsystem having a fault diagnostics arrangement, where the arrangement includes a respective control board for each subsystem. Event data of each subsystem is recorded on the respective control board, and one of the respective control boards of the electric drive system is a main control board of the electric drive system. Event data of a subsystem is transferred from the respective control board to the main control board through a data transfer medium.

    摘要翻译: 示例性电驱动系统具有多个电驱动子系统。 每个子系统具有故障诊断装置,其中该装置包括用于每个子系统的相应的控制板。 每个子系统的事件数据被记录在相应的控制板上,电驱动系统的相应控制板之一是电驱动系统的主控板。 子系统的事件数据通过数据传输介质从相应控制板传送到主控板。

    Method for controlling doubly-fed machine
    7.
    发明申请
    Method for controlling doubly-fed machine 有权
    双馈机控制方法

    公开(公告)号:US20050189896A1

    公开(公告)日:2005-09-01

    申请号:US11042505

    申请日:2005-01-26

    CPC分类号: H02P9/007 H02P23/30 H02P27/05

    摘要: A method for operating a doubly-fed machine by determining its rotational speed (nact), forming a rotational speed reference (nref), measuring network voltage and current, and calculating network active power (Pact) and reactive power (Qact). Thereafter, calculating shaft torque (T) based on active power (Pact) and rotating speed (nact), forming a frequency reference (Fref) for the inverter based on machine rotating speed (nact), rotating speed reference (nref), shaft torque (T), and the known pole pair number and network frequency, forming a reactive power reference (Qref) for the machine. Forming an Ir compensation reference (IRref) for the inverter on the basis of the reactive reference (Qref) and the reactive power (Qact), and controlling the inverter to produce rotor voltage based on frequency reference (Fref) and the IR compensation reference

    摘要翻译: 一种用于通过确定其旋转速度(n>动作)来操作双馈机器的方法,形成转速参考(n ref),测量网络电压和电流,以及 计算网络有功功率(P 动作)和无功功率(Q 动作)。 此后,基于有功功率(P< SUB>)和旋转速度(n<<>)计算轴转矩(T),形成频率基准(F SUB) SUB>),基于机器转速(n act ),转速参考(n ref),轴转矩(T)和已知极对数 和网络频率,为机器形成无功功率参考(Q SUB)。 基于无功参考(Q />)和无功功率(Q )形成用于逆变器的Ir补偿参考(IR >),并且控制逆变器基于频率参考(F />)和IR补偿参考产生转子电压

    Frequency converter assembly
    8.
    发明授权
    Frequency converter assembly 有权
    变频器总成

    公开(公告)号:US08780591B2

    公开(公告)日:2014-07-15

    申请号:US13253396

    申请日:2011-10-05

    IPC分类号: H02M5/451

    摘要: A frequency converter assembly including an input for supplying electric power having an input frequency into the frequency converter assembly from a supply network, a direct voltage intermediate circuit having capacitor component, and at least one controllable switch. The switch being electrically positioned between the input and the direct voltage intermediate circuit. The assembly also includes an output for supplying electric power having an output frequency from the frequency converter assembly, and control component arranged to control the at least one controllable switch. The control component provides a recovery function to recover the capacitor component by supplying restricted recovery current from the supply network to the capacitor component through the at least one controllable switch, the control means also prevents supply of electric power from the direct voltage intermediate circuit towards the output during the recovery function.

    摘要翻译: 一种变频器组件,包括用于从供电网络向频率转换器组件提供具有输入频率的电力的输入,具有电容器部件的直流电压中间电路和至少一个可控开关。 该开关电气定位在输入和直流电压中间电路之间。 组件还包括用于提供具有来自变频器组件的输出频率的电力的输出和被布置成控制至少一个可控开关的控制部件。 控制部件通过至少一个可控开关向供电网络提供限制的恢复电流至电容器部件,提供恢复功能以恢复电容器部件,该控制装置还防止从直流电压中间电路朝向 在恢复功能期间输出。

    Arrangement and method for controlling frequency converter modules
    9.
    发明授权
    Arrangement and method for controlling frequency converter modules 有权
    控制变频器模块的布置和方法

    公开(公告)号:US08581528B2

    公开(公告)日:2013-11-12

    申请号:US13084858

    申请日:2011-04-12

    IPC分类号: H02P1/54

    CPC分类号: H02M7/493 H02J3/006

    摘要: An arrangement for controlling frequency converter modules of an electric drive. In the arrangement, the frequency converter modules are arranged to control alternatively a first motor or several motors having less power than the first motor.

    摘要翻译: 一种用于控制电力驱动器的变频器模块的装置。 在该布置中,变频器模块被布置成交替地控制第一电动机或具有比第一电动机少的功率的几个电动机。

    Method for controlling doubly-fed machine
    10.
    发明授权
    Method for controlling doubly-fed machine 有权
    双馈机控制方法

    公开(公告)号:US07023160B2

    公开(公告)日:2006-04-04

    申请号:US11042505

    申请日:2005-01-26

    IPC分类号: H02P27/04 H02P27/00

    CPC分类号: H02P9/007 H02P23/30 H02P27/05

    摘要: A method for operating a doubly-fed machine by determining its rotational speed (nact), forming a rotational speed reference (nref), measuring network voltage and current, and calculating network active power (Pact) and reactive power (Qact). Thereafter, calculating shaft torque (T) based on active power (Pact) and rotating speed (nact), forming a frequency reference (Fref) for the inverter based on machine rotating speed (nact), rotating speed reference (nref), shaft torque (T), and the known pole pair number and network frequency, forming a reactive power reference (Qref) for the machine. Forming an Ir compensation reference (IRref) for the inverter on the basis of the reactive reference (Qref) and the reactive power (Qact), and controlling the inverter to produce rotor voltage based on frequency reference (Fref) and the IR compensation reference

    摘要翻译: 一种用于通过确定其旋转速度(n>动作)来操作双馈机器的方法,形成转速参考(n ref),测量网络电压和电流,以及 计算网络有功功率(P 动作)和无功功率(Q 动作)。 此后,基于有功功率(P< SUB>)和旋转速度(n<<>)计算轴转矩(T),形成频率基准(F SUB) SUB>),基于机器转速(n act ),转速参考(n ref),轴转矩(T)和已知极对数 和网络频率,为机器形成无功功率参考(Q SUB)。 基于无功参考(Q />)和无功功率(Q )形成用于逆变器的Ir补偿参考(IR >),并且控制逆变器基于频率参考(F />)和IR补偿参考产生转子电压