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27 条记录 (耗时 0.037 秒)

    Control method and apparatus for a turbine generator
    2.
    发明授权
    Control method and apparatus for a turbine generator 失效
    一种涡轮发电机的控制方法和装置

    公开(公告)号：US5321308A

    公开(公告)日：1994-06-14

    申请号：US91769

    申请日：1993-07-14

    申请人： Allan W. Johncock

    发明人： Allan W. Johncock

    IPC分类号： H02P9/30 ,  H02P9/00 ,  H02P9/10

    CPC分类号： H02P9/30 ,  Y10S174/15

    摘要： A control method and apparatus for a gas turbine generator is disclosed having multiple modes of operation dependent on generator output components including real power generated, reactive power generated, and power factor. The apparatus provides for selecting a high priority output component, a low priority output component, and a variable output component. Depending on the priority selected, stator temperature is controlled with either a var limiter controller or a MW limiter controller. Rotor temperature is controlled by limiting excitation current substantially independently of priority selection. Setpoint selection may be variable and includes desired MW, MVAR's, and Power factor. This invention allows control of the generator to produce the maximum MVAR's the generator is capable of producing while at the same time utilizing the remainder of the gas turbine output capability for MW generation.

    摘要翻译： 公开了一种用于燃气涡轮发电机的控制方法和装置，其具有取决于发电机输出部件的多种运行模式，包括实际发电功率，无功功率和功率因数。 该装置提供选择高优先级输出分量，低优先级输出分量和可变输出分量。 根据所选择的优先级，定子温度由无限制器控制器或MW限制器控制器控制。 基本上独立于优先级选择来限制励磁电流来控制转子温度。 设定点选择可能是可变的，包括所需的MW，MVAR和功率因数。 本发明允许发电机的控制产生发电机能够产生的最大MVAR，同时利用燃气轮机输出能力用于发电的其余部分。

    Wind power plant
    7.
    发明授权
    Wind power plant 失效
    风力发电厂

    公开(公告)号：US07061133B1

    公开(公告)日：2006-06-13

    申请号：US09554888

    申请日：1998-11-30

    申请人： Mats Leijon ,  Gunnar Kylander

    发明人： Mats Leijon ,  Gunnar Kylander

    IPC分类号： F03D9/00 ,  H02K3/40

    CPC分类号： H02K3/40 ,  F03D9/25 ,  F03D15/00 ,  H02K7/1838 ,  H02K2203/15 ,  Y02E10/725 ,  Y10S174/15 ,  Y10S174/28

    摘要： The magnetic circuit of a generator in a wind power plant is arranged to directly supply a high supply voltage of 2-50 kV, preferably higher than 10 kV. The generator is provided with solid insulation and its winding includes a cable (6) comprising one or more current-carrying conductors (31) with a number of strands (36) surrounded by at least one outer and one inner semiconducting layer (34, 32) and intermediate insulating layers (33). The outer semiconducting layer (34) is at earth potential. The stator winding may be produced with full or fractional slot winding, the phases of the winding being Y-connected. The Y-point may be insulated and protected from over-voltage by means of surge arrestors, or else the Y-point may be earthed via a suppression filter. The invention also relates to a wind power plant, a generator included in the plant and a variable speed system for such a plant.

    摘要翻译： 风力发电厂中的发电机的磁路被布置成直接供应2-50kV，优选高于10kV的高电源电压。 发电机具有固体绝缘，其绕组包括电缆（6），电缆（6）包括一个或多个载流导体（31），多个线束（36）由至少一个外部和一个内部半导体层（34,32）包围 ）和中间绝缘层（33）。 外部半导体层（34）处于地电位。 定子绕组可以用全部或分数的槽绕制成，绕组的相位是Y形连接的。 Y点可以通过浪涌抑制器进行绝缘和保护，防止过电压，否则Y点可能通过抑制滤波器接地。 本发明还涉及一种风力发电厂，包括在工厂中的发电机和用于这种设备的变速系统。

    Wind powered system for generating electricity
    10.
    发明授权
    Wind powered system for generating electricity 失效
    用于发电的风力发电系统

    公开(公告)号：US4565929A

    公开(公告)日：1986-01-21

    申请号：US537750

    申请日：1983-09-29

    申请人： Joseph M. Baskin ,  Gary E. Miller ,  Wayne Wiesner

    发明人： Joseph M. Baskin ,  Gary E. Miller ,  Wayne Wiesner

    IPC分类号： F03D1/06 ,  F03D7/02 ,  F03D9/00

    CPC分类号： F03D1/0658 ,  F03D7/0252 ,  F03D9/002 ,  F05B2220/70644 ,  F05B2260/85 ,  F05B2260/9011 ,  F05B2270/3201 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/725 ,  Y10S174/15 ,  Y10S416/07

    摘要： A fixed pitch wind turbine rotor (18) is teeter mounted (76, 78, 80) onto a low speed input shaft (44) which is connected to the input (58) of a step-up transmission (46). The output (48) of the transmission (46) is connected to a rotary pole amplitude modulated induction machine (42) which is operable as a generator at a plurality of discreet speeds of rotation and is also operable as a startup motor for the rotor. A switch (45) responsive to the rotational speed of the wind turbine rotor switches the generator from one speed of operation to the other. The rotor hub (72) and the inner body portions (71) of two blades (68, 70), which extend radially outwardly in opposite directions from the hub (72), are constructed from steel. The outer end portions (73) of the blade (68, 70) are constructed from a lighter material, such as wood, and are both thinner and narrower than the remainder of the rotor. The outer end section (73) of each blade (68, 70) includes a main body portion and a trailing edge portion (104) which is hinge-connected to the main body portion. Each blade (68, 70) includes a centrifugal force operated positioning means (98, 100) which normally holds the drag brake section (104) in a retracted position, but operates in response to a predetermined magnitude of centrifugal force to move the drag brake (104) section into its deployed position. Each blade has an airfoil cross section and each blade (68, 70) has a plus twist inner portion adjacent the hub (72) changing to first a zero twist and then a minus twist as it extends radially outwardly from the hub (72).

    摘要翻译： 固定间距风力涡轮机转子（18）在连接到升压变速器（46）的输入端（58）的低速输入轴（44）上安装（76,78,80）。 变速器（46）的输出（48）连接到旋转磁极调幅感应电机（42），该感应电机可以多个离散的转速作为发电机工作，并且也可用作转子的起动电动机。 响应于风力涡轮机转子的转速的开关（45）将发电机从一个操作速度切换到另一个。 两个叶片（68,70）的转子轮毂（72）和内部主体部分（71）由与轮毂（72）相反的方向径向向外延伸。 叶片（68,70）的外端部（73）由诸如木材的较轻的材料构成，并且比转子的其余部分更薄和更窄。 每个叶片（68,70）的外端部分（73）包括主体部分和与主体部分铰链连接的后缘部分（104）。 每个叶片（68,70）包括离心力操作的定位装置（98,100），其通常将牵引制动部分（104）保持在缩回位置，但是响应于预定大小的离心力而起作用以使牵引制动器 （104）部分到其部署位置。 每个叶片具有翼型横截面，并且每个叶片（68,70）具有与轮毂（72）相邻的加捻内部部分，首先从毂（72）径向向外延伸到零捻，然后改变负扭。