Pitch motor drive circuit which can operate in emergency mode
    1.
    发明授权
    Pitch motor drive circuit which can operate in emergency mode 有权
    可在紧急模式下工作的间距电机驱动电路

    公开(公告)号:US09024563B2

    公开(公告)日:2015-05-05

    申请号:US13882637

    申请日:2011-10-25

    摘要: A pitch drive circuit that operates in an emergency mode, for a wind or water power plant. The circuit has at least one rectifier unit, at least one DC intermediate circuit, two inverter units and a pitch rotary current motor with motor trains that can be contacted on both sides. A first contact side of the motor trains is connected to a first inverter unit and a second contact side of the motor trains is connected to a second inverter unit. At least one switching element is connected to at least one contact side of the motor trains. In a normal operating mode of a first switching state of the switching element the motor trains can be energized via both inverter units, and in an emergency operating mode of a second switching state of the switching element, the motor trains can be energized via a single inverter unit.

    摘要翻译: 在紧急模式下运行的变桨驱动电路,用于风力发电厂或水力发电厂。 该电路具有至少一个整流器单元,至少一个DC中间电路,两个逆变器单元和具有可在两侧接触的电动机列的俯仰旋转电动马达。 电动机列的第一接触侧连接到第一逆变器单元,电动机列的第二接触侧连接到第二逆变器单元。 至少一个开关元件连接到马达列车的至少一个接触侧。 在开关元件的第一开关状态的正常工作模式中,电动机列车可以通过两个逆变器单元被激励,并且在开关元件的第二开关状态的紧急操作模式中,电动机列车可以通过单个 逆变器单元。

    PITCH MOTOR DRIVE CIRCUIT WHICH CAN OPERATE IN EMERGENCY MODE
    2.
    发明申请
    PITCH MOTOR DRIVE CIRCUIT WHICH CAN OPERATE IN EMERGENCY MODE 有权
    倾斜电机驱动电路,可在紧急模式下运行

    公开(公告)号:US20130271056A1

    公开(公告)日:2013-10-17

    申请号:US13882637

    申请日:2011-10-25

    IPC分类号: H02P27/06

    摘要: The invention relates to a pitch drive circuit (50, 52, 54), which can operate in emergency mode, for a wind or water power plant (80), said circuit comprising at least one rectifier unit (14), at least one DC intermediate circuit (18), two inverter units (16-1, 16-2) and a pitch rotary current motor (38) with motor trains (30) which can be contacted on both sides. A first contact side (76-1) of the motor trains (30) is connected to a first inverter unit (16-1) and a second contact side (76-2) of the motor trains (30) is connected to a second inverter unit (16-2). At least one switching element (40) is connected to at least one contact side (76) of the motor trains (30). In a normal operating mode of a first switching state of the switching element (40, 44, 46), the motor trains (30) can be energized by means of both inverter units (16-1, 16-2), and in an emergency operating mode of a second switching state of the switching element (40, 44, 46), the motor trains (30) can be energized by means of a single inverter unit (16). The invention further relates to a pitch drive device which is energized by an aforementioned drive circuit. Finally, the invention relates to a method for operating the pitch drive circuit which can operate in emergency mode.

    摘要翻译: 本发明涉及一种用于风力或水力发电厂(80)的可在紧急模式下操作的变桨驱动电路(50,52,54),所述电路包括至少一个整流单元(14),至少一个直流 中间回路(18),两个逆变器单元(16-1,16-2)和具有可在两侧接触的马达列(30)的俯仰旋转电流马达(38)。 电动机列(30)的第一接触侧(76-1)连接到第一逆变器单元(16-1),电机列(30)的第二接触侧(76-2)连接到第二 变频器单元(16-2)。 至少一个开关元件(40)连接到电机列车(30)的至少一个接触侧(76)。 在开关元件(40,44,46)的第一开关状态的正常工作模式下,可以通过两个逆变单元(16-1,16-2)对电动机列(30)进行通电,并且在 开关元件(40,44,46)的第二开关状态的紧急动作模式,电动机列(30)能够通过单个逆变器单元(16)通电。 本发明还涉及一种由上述驱动电路激励的变桨驱动装置。 最后,本发明涉及一种用于操作俯仰驱动电路的方法,其可在紧急模式下操作。