Wind turbine generator system
    72.
    发明申请
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US20050017512A1

    公开(公告)日:2005-01-27

    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变换器,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。

    Combustion turbine power generation system and method of controlling the same
    73.
    发明授权
    Combustion turbine power generation system and method of controlling the same 失效
    燃气轮机发电系统及其控制方法

    公开(公告)号:US06834502B2

    公开(公告)日:2004-12-28

    申请号:US10437913

    申请日:2003-05-15

    IPC分类号: F01K1302

    摘要: A combustion turbine power generating system and method in which the system includes a permanent magnet type AC power generator, a combustion turbine that drives the AC power generator, a first converter enabling conversion between AC current and DC current and having an AC side connected to the AC power generator, a second converter enabling conversion between AC current and DC current and having a DC side connected to a DC output side of the first converter, a capacitor connected between the first and second converters, a generator-speed control unit that controls the first converter and a DC voltage control unit that controls a DC-side voltage of the second converter. The generator-speed control unit controls the first converter on the basis of a number of revolution command value.

    摘要翻译: 一种燃气轮机发电系统和方法,其中所述系统包括永磁式交流发电机,驱动所述交流发电机的燃气轮机,能够在交流电流与直流电流之间进行转换并具有连接到所述交流发电机的交流侧的第一转换器 交流发电机,第二转换器,其能够进行交流电流和直流电流之间的转换,并且具有连接到所述第一转换器的直流输出侧的直流侧,连接在所述第一和第二转换器之间的电容器,发电机速度控制单元, 第一转换器和控制第二转换器的直流侧电压的直流电压控制单元。 发电机速度控制单元基于转数指令值来控制第一转换器。

    Combustion turbine power generation system and method of controlling the same
    74.
    发明授权
    Combustion turbine power generation system and method of controlling the same 失效
    燃气轮机发电系统及其控制方法

    公开(公告)号:US06684639B2

    公开(公告)日:2004-02-03

    申请号:US10246470

    申请日:2002-09-19

    IPC分类号: F01K1302

    摘要: A combustion turbine power generating system includes an AC power generator, a combustion turbine that drives the AC power generator, a first converter that can make conversion between AC current and DC current and having an AC side connected to the AC power generator, a second converter that can make conversion between AC current and DC current and having a DC side connected to a DC output side of the first converter, a smoothing condenser connected between the first and second converters, a generator-speed control unit that controls the first converter and a DC voltage control unit that controls a DC-side voltage of the second converter, thereby the generator-speed control unit controls the first converter on the basis of the number of revolution command value.

    摘要翻译: 一种燃气涡轮发电系统,包括AC发电机,驱动所述AC发电机的燃气轮机,能够在AC电流和DC电流之间进行转换且AC侧连接到所述AC发电机的第一转换器,第二转换器 其能够进行交流电流与直流电流之间的转换,将直流侧连接到第一转换器的直流输出侧,连接在第一和第二转换器之间的平滑电容器,控制第一转换器的发电机速度控制单元和 直流电压控制单元,其控制第二转换器的直流侧电压,从而发电机速度控制单元基于转数指令值来控制第一转换器。

    Solar power system and control system
    75.
    发明授权
    Solar power system and control system 有权
    太阳能发电系统及控制系统

    公开(公告)号:US09207700B2

    公开(公告)日:2015-12-08

    申请号:US13521672

    申请日:2011-02-21

    IPC分类号: G06F1/26 G05F1/67 H01L31/02

    摘要: In a case in which a local solution to current-voltage characteristics is generated by way of a partial shade, it has been difficult to perform control for causing a solar cell to operate at a maximum power point efficiently in terms of power and at a low cost. During steady state operation, an MPPT control unit 1 for performing the normal hill climbing method is selected, and if the change amount of the output current of the solar cell is greater than or equal to a predetermined threshold, an MPPT control unit 2 for increasing the variation width of the output voltage of the solar cell to greater than the hill climbing method is selected. By way of such control, it is possible to achieve both efficient operation in a steady state and avoidance of a local solution to a partial shade at a low cost.

    摘要翻译: 在通过部分阴影产生电流 - 电压特性的局部解决方案的情况下,难以执行使太阳能电池在功率方面有效地在最大功率点工作的控制 成本。 在稳态运行中,选择用于执行正常登山方法的MPPT控制单元1,如果太阳能电池的输出电流的变化量大于或等于预定阈值,则MPPT控制单元2用于增加 选择太阳能电池的输出电压的变化幅度大于爬坡方式。 通过这样的控制,可以在稳定状态下实现有效的操作,并且可以以低成本避免局部溶液局部遮蔽。

    BATTERY ENERGY STORAGE SYSTEM
    76.
    发明申请
    BATTERY ENERGY STORAGE SYSTEM 审中-公开
    电池能源储存系统

    公开(公告)号:US20140077595A1

    公开(公告)日:2014-03-20

    申请号:US14119988

    申请日:2012-05-21

    IPC分类号: H02J1/10

    摘要: A battery energy storage system including: a power control circuit group provided by electrically connecting a plurality of power control circuits in series with each other on a load connection terminal side, the plurality of power control circuits each having load connection terminals electrically connected with a load and having power supply connection terminals electrically connected with a power supply, and controlling power supplied to the load side connection terminals or the power supply side connection terminals and outputting the power from the power supply side connection terminals or the load side connection terminals; an electric energy storage device including a plurality of capacitors, a control device for controlling operation of the plurality of power control circuits; and a power usage rate changing section provided so as to correspond to each of the plurality of power control circuits.

    摘要翻译: 一种电池能量存储系统,包括:功率控制电路组,其通过在负载连接端子侧上彼此串联地电连接多个功率控制电路,所述多个功率控制电路各自具有与负载电连接的负载连接端子 并且具有与电源电连接的电源连接端子,并且控制供应到负载侧连接端子或电源侧连接端子的电力,并从电源侧连接端子或负载侧连接端子输出电力; 包括多个电容器的电能存储装置,用于控制多个功率控制电路的操作的控制装置; 以及功率使用率变更部,设置为与所述多个功率控制电路中的每一个对应。

    Vehicle having tire wear evaluation system
    77.
    发明授权
    Vehicle having tire wear evaluation system 有权
    车辆具有轮胎磨损评估系统

    公开(公告)号:US08319621B2

    公开(公告)日:2012-11-27

    申请号:US12709096

    申请日:2010-02-19

    IPC分类号: B60Q1/00

    摘要: A vehicle which evaluates tire wear properly even in a road condition that tires easily slip or lock up. The vehicle, which has a driven wheel and a driving wheel with tires attached thereto, includes: a revolution speed detector for detecting revolution speeds of the driven and driving wheels; a wheel speed detector for detecting wheel speeds of the driven and driving wheels based on the detected revolution speed data of the driven and driving wheels; a wheel speed ratio detector for detecting a wheel speed ratio between the driven and driving wheels based on the detected wheel speed data of the driven and driving wheels; and a tire condition evaluator for outputting an evaluation result indicating that the tire(s) attached to the driven wheel and/or driving wheel is(are) worn when the wheel speed ratio is higher than a preset threshold.

    摘要翻译: 即使在轮胎容易滑动或锁定的道路状况下也能够正确地评估轮胎磨损的车辆。 具有从动轮和附带轮胎的驱动轮的车辆包括:用于检测从动和驱动轮的转速的转速检测器; 用于根据所检测到的从动驱动轮和驱动轮的转速数据来检测从动和驱动轮的车轮速度的车轮速度检测器; 轮速比检测器,用于根据检测到的从动和驱动轮的车轮速度数据来检测从动和驱动车轮之间的车轮速比; 以及轮胎状况评估器,用于输出当轮速比高于预设阈值时表示安装在从动轮和/或驱动轮上的轮胎被磨损的评估结果。

    Wind turbine generator system
    78.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US08242620B2

    公开(公告)日:2012-08-14

    申请号:US13117961

    申请日:2011-05-27

    IPC分类号: F03D9/00 H02P9/04 F02D29/06

    摘要: A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation of the wind turbine. The wind turbine generator system includes a generator connected to the shaft of the wind turbine and a converter connected to the generator. When the rotational velocity of the wind turbine is within a predetermined range, power outputted from the generator is controlled so as to follow the instruction concerning the generator output given from the wind turbine to the converter. When the rotational velocity of the wind turbine is out of the predetermined range, the power outputted from the generator is controlled without following the instruction concerning generator output given from the wind turbine to the converter.

    摘要翻译: 风力发电机系统即使当风速突然变化并且可以执行风力涡轮机的连续运行时,也可以在运行范围内调节风力涡轮机的旋转速度。 风力发电机系统包括连接到风力涡轮机的轴的发电机和连接到发电机的转换器。 当风力涡轮机的旋转速度在预定范围内时,控制从发电机输出的功率,以便遵循关于从风力涡轮机给转换器的发电机输出的指令。 当风力涡轮机的旋转速度超出预定范围时,从发电机输出的功率被控制,而不用遵循关于从风力涡轮机向转换器给出的发电机输出的指令。

    Wind turbine generator system
    79.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US08076790B2

    公开(公告)日:2011-12-13

    申请号:US13107303

    申请日:2011-05-13

    IPC分类号: H02P9/44 H02P9/47

    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。

    WIND TURBINE GENERATOR SYSTEM
    80.
    发明申请
    WIND TURBINE GENERATOR SYSTEM 有权
    风力发电机系统

    公开(公告)号:US20110266799A1

    公开(公告)日:2011-11-03

    申请号:US13117961

    申请日:2011-05-27

    IPC分类号: H02P9/04 H02P9/48

    摘要: A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation of the wind turbine. The wind turbine generator system includes a generator connected to the shaft of the wind turbine and a converter connected to the generator. When the rotational velocity of the wind turbine is within a predetermined range, power outputted from the generator is controlled so as to follow the instruction concerning the generator output given from the wind turbine to the converter. When the rotational velocity of the wind turbine is out of the predetermined range, the power outputted from the generator is controlled without following the instruction concerning generator output given from the wind turbine to the converter.

    摘要翻译: 风力发电机系统即使当风速突然变化并且可以执行风力涡轮机的连续运行时,也可以在运行范围内调节风力涡轮机的旋转速度。 风力发电机系统包括连接到风力涡轮机的轴的发电机和连接到发电机的转换器。 当风力涡轮机的旋转速度在预定范围内时,控制从发电机输出的功率,以便遵循关于从风力涡轮机给转换器的发电机输出的指令。 当风力涡轮机的旋转速度超出预定范围时,从发电机输出的功率被控制,而不用遵循关于从风力涡轮机向转换器给出的发电机输出的指令。