Multi-speed electric motor
    2.
    发明授权

    公开(公告)号:US09919903B2

    公开(公告)日:2018-03-20

    申请号:US14656370

    申请日:2015-03-12

    摘要: A multi-speed electric motor may include a plurality of windings arranged into winding phase groups. A speed controller may switch two or more windings between a series and a parallel configuration in each winding phase group. The speed controller may also switch the winding phase groups between a delta and a Wye configuration. By selecting a specific configuration, one or more of the holding torque, torque ratio, no-load maximum speed, and volts/Hz ratio of the AC motor may be optimized for a given application. In some embodiments, the AC motor may be used as part of a piece of drilling rig equipment such as a drawworks, winch, mud pump, top drive, or rotary table.

    Pitch motor drive circuit which can operate in emergency mode
    7.
    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。

    Series hybrid electric vehicle
    9.
    发明授权
    Series hybrid electric vehicle 失效
    系列混合动力电动汽车

    公开(公告)号:US07635039B2

    公开(公告)日:2009-12-22

    申请号:US10597143

    申请日:2005-01-11

    IPC分类号: B60K6/00

    摘要: There is provided a technique for improving the efficiency of a generation system of a series hybrid electric vehicle The series hybrid electric vehicle is composed of: an engine; an n-phase generator driven by the engine; a rectifier generating a DC voltage from an n-phase AC voltage received from the n-phase generator; a battery charged with the DC voltage generated; a motor driving drive wheels; an inverter driving the motor on the DC voltage received from the rectifier and/or a DC voltage supplied from the battery; and a switch. The n-phase generator has n armature windings each having one end connected to a common neutral point. The rectifier has a negative terminal, a positive terminal on which a higher potential is generated than on the negative terminal, and n rectifying arms. Each of the n rectifying arms includes; a first diode connected between an intermediated node connected to the other end of the corresponding armature windings and the negative terminal; and a second diode connected between the intermediate node and the positive terminal. The switch is connected between the neutral point and the negative terminal.

    摘要翻译: 提供了一种用于提高串联混合动力电动车辆的发电系统的效率的技术。该系列混合动力电动车辆包括:发动机; 由发动机驱动的n相发电机; 整流器,从从n相发电机接收的n相交流电压产生直流电压; 充电的电池产生直流电压; 电机驱动驱动轮; 由整流器接收的直流电压驱动电机的逆变器和/或从电池供给的直流电压; 和开关。 n相发生器具有n个电枢绕组,每个电枢绕组的一端连接到公共中性点。 整流器具有负极端子,在其上产生比负极端子产生更高电位的正极端子和n个整流臂。 n个整流臂中的每一个包括: 连接在与相应的电枢绕组的另一端连接的中间节点和负极之间的第一二极管; 以及连接在中间节点和正极端子之间的第二二极管。 开关连接在中性点和负极端子之间。

    Series hybrid electric vehicle
    10.
    发明申请
    Series hybrid electric vehicle 失效
    系列混合动力电动汽车

    公开(公告)号:US20070137908A1

    公开(公告)日:2007-06-21

    申请号:US10597143

    申请日:2005-01-11

    IPC分类号: B60K6/00

    摘要: There is provided a technique for improving the efficiency of a generation system of a series hybrid electric vehicle The series hybrid electric vehicle is composed of: an engine; an n-phase generator driven by the engine; a rectifier generating a DC voltage from an n-phase AC voltage received from the n-phase generator; a battery charged with the DC voltage generated; a motor driving drive wheels; an inverter driving the motor on the DC voltage received from the rectifier and/or a DC voltage supplied from the battery; and a switch. The n-phase generator has n armature windings each having one end connected to a common neutral point. The rectifier has a negative terminal, a positive terminal on which a higher potential is generated than on the negative terminal, and n rectifying arms. Each of the n rectifying arms includes; a first diode connected between an intermediated node connected to the other end of the corresponding armature windings and the negative terminal; and a second diode connected between the intermediate node and the positive terminal. The switch is connected between the neutral point and the negative terminal.

    摘要翻译: 提供了一种用于提高串联混合动力电动车辆的发电系统的效率的技术。该系列混合动力电动车辆包括:发动机; 由发动机驱动的n相发电机; 整流器,从从n相发电机接收的n相交流电压产生直流电压; 充电的电池产生直流电压; 电机驱动驱动轮; 由整流器接收的直流电压驱动电机的逆变器和/或从电池供给的直流电压; 和开关。 n相发生器具有n个电枢绕组,每个电枢绕组的一端连接到公共中性点。 整流器具有负极端子,在其上产生比负极端子产生更高电位的正极端子和n个整流臂。 n个整流臂中的每一个包括: 连接在与相应的电枢绕组的另一端连接的中间节点和负极之间的第一二极管; 以及连接在中间节点和正极端子之间的第二二极管。 开关连接在中性点和负极端子之间。