Power generation apparatus using AC energization synchronous generator and method of controlling the same
    32.
    发明授权
    Power generation apparatus using AC energization synchronous generator and method of controlling the same 有权
    使用交流通电同步发电机的发电装置及其控制方法

    公开(公告)号:US07453242B2

    公开(公告)日:2008-11-18

    申请号:US12031262

    申请日:2008-02-14

    IPC分类号: H02P9/44

    摘要: A power generation apparatus and method includes an AC energization synchronous generator, a switching device for connecting to a network disposed on a stator side of the AC energization synchronous generator, an energizing device for applying a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit for detecting a voltage of the switching device on the stator side. A rotational frequency of the AC energization synchronous generator is estimated or calculated based on a frequency of a stator side voltage of the switching device, while the switching device is open.

    摘要翻译: 一种发电装置和方法,包括AC通电同步发电机,用于连接到设置在交流通电同步发电机的定子侧的网络的开关装置,用于向交流通电的次级绕组施加变频AC的通电装置 同步发电机和用于检测定子侧的开关装置的电压的第一电压检测单元。 交流通电同步发电机的转速在切换装置断开时,基于开关装置的定子侧电压的频率来推定或计算。

    Electrical rotating machine control unit and power generation system
    34.
    发明授权
    Electrical rotating machine control unit and power generation system 失效
    电动旋转机控制单元和发电系统

    公开(公告)号:US07157804B2

    公开(公告)日:2007-01-02

    申请号:US11360874

    申请日:2006-02-23

    IPC分类号: H02P9/10

    摘要: Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter that estimates the slip frequency of the doubly-fed machine from each primary current I1 and voltage V1 and secondary current I2 and voltage V2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.

    摘要翻译: 由于需要旋转变压器检测非常昂贵的旋转位置,并且双馈机器上的旋转位置信号线的噪声抑制,发电机的成本增加和由于可能的故障而导致的可靠性降低是不可避免的。 为了解决这样的问题,本发明的发电系统配备有从每个初级电流I 1 1和电压V 1估算双馈机器的转差频率的励磁机构 和双馈机器的二次电流I 2 2和电压V 2 2,并且以估计的滑差频率激励双馈机器的次级。

    Wind turbine generator system
    35.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US07095132B2

    公开(公告)日:2006-08-22

    申请号:US10894050

    申请日:2004-07-20

    摘要: An object of the present invention is to minimize the torsional vibration caused on the shafting of the wind turbine genarator system so as to operate the windmill stably.A wind turbine genarator system according to the present invention, equipped with a synchronous generator connected to the shaft of a windmill, converter connected to the stator of the synchronous generator, and inverter connected to the converter and also to an electric power system, extracts the torsional vibration component of the shafting between the windmill and synchronous generator from the detected rotation speed of the synchronous generator, regulates the active component of the current command to the converter according to the vibration component, and controls so as to minimize the rotation speed variation of the synchronous generator.

    摘要翻译: 本发明的目的是最小化在风力发电机系统的轴系上产生的扭转振动,以便稳定地操作风车。 根据本发明的风力发电机系统,配备有连接到风车的轴的同步发电机,连接到同步发电机的定子的转换器,以及连接到转换器的逆变器以及连接到电力系统的风力发电机系统, 根据检测到的同步发电机的转速,风车和同步发电机之间的轴系的扭转振动分量根据振动分量调节到转换器的电流指令的有效分量,并且控制以使转速变化最小化 同步发电机。

    Wind turbine generator system
    36.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US07095130B2

    公开(公告)日:2006-08-22

    申请号:US10996645

    申请日:2004-11-23

    IPC分类号: H02P9/00 H02P9/46

    摘要: To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel to synchronizing the stator voltage with the grid voltage. The calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.

    摘要翻译: 为了缩短启动间隔以达到同步状态,获得了绕组的一相的电网电压和定子电压之间的相位差和振幅差。 在使定子电压与电网电压同步之前或之后,振幅的差异减小。 计算出的补偿相位补偿值用作在下一个同步操作下进行同步的初始值。

    Fuel cell system and control method
    37.
    发明授权
    Fuel cell system and control method 有权
    燃料电池系统及控制方法

    公开(公告)号:US07064967B2

    公开(公告)日:2006-06-20

    申请号:US10786090

    申请日:2004-02-26

    IPC分类号: H02M7/122

    摘要: A battery voltage Ef of a fuel cell 1 is detected, and a current instruction value which transformed an electric power instruction value Pfc of the fuel cell is reduced at falling-down of the voltage Ef. A current limiter 8 makes the current instruction value a limit value at the time of the falling-down of Ef, and reduces the limit value according to the fall of Ef. For example, current instruction value is restricted so as to begin to reduce battery current IFC at voltage drop alarm level (first threshold value), and become zero at voltage drop protection level (second threshold value).

    摘要翻译: 检测燃料电池1的电池电压Ef,并且在电压Ef的下降时,使燃料电池的电力指令值Pfc变换的电流指令值减小。 电流限制器8使电流指令值成为Ef下降时的极限值,并根据Ef的下降而减小极限值。 例如,电流指令值被限制,以便在电压下降报警电平(第一阈值)下开始减小电池电流IFC,并且在电压下降保护水平(第二阈值)下变为零。

    Power generation apparatus using permanent-magnet generator
    38.
    发明授权
    Power generation apparatus using permanent-magnet generator 失效
    使用永磁发电机的发电机

    公开(公告)号:US06731522B2

    公开(公告)日:2004-05-04

    申请号:US10417145

    申请日:2003-04-17

    IPC分类号: H02M545

    摘要: A power generation apparatus includes a permanent-magnet AC generator, a first converter for converting AC power into DC power, and a second converter for converting the DC power produced by the first converter into AC power. The first converter includes a unit for controlling active power and a unit for controlling reactive power and the second converter includes a unit for controlling a voltage of a DC system and reactive power or AC voltage of a power system.

    摘要翻译: 发电装置包括永磁交流发电机,将交流电转换成直流电力的第一转换器和将由第一转换器产生的直流电变换为交流电力的第二转换器。 第一转换器包括用于控制有功功率的单元和用于控制无功功率的单元,第二转换器包括用于控制DC系统的电压和电力系统的无功功率或AC电压的单元。

    Power generation system using synchronous generator
    39.
    发明授权
    Power generation system using synchronous generator 有权
    发电系统采用同步发电机

    公开(公告)号:US06720753B2

    公开(公告)日:2004-04-13

    申请号:US10191282

    申请日:2002-07-10

    IPC分类号: H02M545

    摘要: An apparatus for controlling a synchronous generator having a converter. A voltage detector detects a terminal voltage of a stator of the synchronous generator. A current detector detects a current flowing through the stator. A rotor position estimating part estimates a rotor position of the synchronous generator from the detected voltage and current. An active power detector detects a active power of the synchronous generator. A reactive power detector detects a reactive power of the synchronous generator or a terminal voltage detector detects an effective value of a terminal voltage of the stator. An active power controller adjusts a q-axis current command to control the active power, and a reactive power controller or terminal voltage controller adjusts a d-axis current command to control the reactive power or terminal voltage.

    摘要翻译: 一种用于控制具有转换器的同步发电机的装置。 电压检测器检测同步发电机的定子的端子电压。 电流检测器检测流过定子的电流。 转子位置估计部件根据检测到的电压和电流来估计同步发电机的转子位置。 有功功率检测器检测同步发电机的有功功率。 无功功率检测器检测同步发电机的无功功率,或端子电压检测器检测定子的端电压的有效值。 有功功率控制器调节q轴电流指令以控制有功功率,无功功率控制器或端子电压控制器调节d轴电流指令以控制无功功率或端子电压。

    Battery energy storage system
    40.
    发明授权
    Battery energy storage system 有权
    电池储能系统

    公开(公告)号:US09252620B2

    公开(公告)日:2016-02-02

    申请号:US14119241

    申请日:2012-05-24

    摘要: In order to provide a charge/discharge technology for controlling an assembled battery system without promoting degradation or reduction in the lifetime of the assembled battery system, the assembled battery system includes a function for controlling charge and discharge power of a plurality of units each including a secondary battery and a power converter as one unit, the plurality of units being electrically connected in parallel to each other. When each unit performs charge or discharge by at least one or more times, charge and discharge of the unit are controlled so as not to be performed until a predetermined pause time period elapses.

    摘要翻译: 为了提供一种用于控制组电池系统的充电/放电技术,而不会导致组电池系统的寿命的劣化或降低,组电池系统包括用于控制多个单元的充电和放电功率的功能,每个单元包括 二次电池和功率转换器作为一个单元,所述多个单元彼此并联电连接。 当每个单元至少进行一次或多次充电或放电时,控制单元的充电和放电,直到经过预定的暂停时间段才能执行。