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    • 1. 发明申请
    • INTEGRATED EXCITATION AND TURBINE CONTROLLER FOR SYNCHRONOUS GENERATOR AND CONTROL METHOD THEREOF
    • 用于同步发电机的集成激励和涡轮控制器及其控制方法
    • WO2012055115A1
    • 2012-05-03
    • PCT/CN2010/078244
    • 2010-10-29
    • ABB RESEARCH LTD.CHEN, YaoPAN, JiupingSAO, CharlesGERTMAR, Lars
    • CHEN, YaoPAN, JiupingSAO, CharlesGERTMAR, Lars
    • H02P6/00
    • H02P9/04H02P9/105
    • An integrated excitation and turbine controller (23) for a synchronous generator (20) and a control method thereof are provided. The method comprises following steps: categorizing the fault severity according to the accelerating energy caused by the power mismatch; detecting the generator operation mode according to the signs of power angle derivation and the directions of electromagnetic power; calculating the auxiliary excitation voltage according to the fault severity and the generator operation mode; calculating the auxiliary governor valve opening according to the fault severity and the generator operation mode; and calculating the intercept valve opening according to the fault severity and the generator operation mode. The disturbance severity categorization and the generator operation mode are both considered in the method based on the local measurements (29) so as to determine the best combination of the auxiliary excitation and the turbine control under various system disturbances and operation conditions. The outputs of the integrated excitation and turbine controller (23) will be added into the existing generator controllers for generator transient stability enhancement and dynamic performance improvement. When the disturbances disappear, the outputs of the integrated excitation and turbine controller (23) will be phased out automatically so as to minimize the impacts on the generator steady-state voltage and the frequency regulations.
    • 提供了一种用于同步发电机(20)的集成激励和涡轮机控制器(23)及其控制方法。 该方法包括以下步骤:根据功率失配引起的加速能量对故障严重程度进行分类; 根据功率角推导的标志和电磁方向检测发电机工作模式; 根据故障严重程度和发电机工作模式计算辅助励磁电压; 根据故障严重程度和发电机运行模式计算辅助调节阀开度; 并根据故障严重程度和发电机运行模式计算截流阀开度。 在基于局部测量的方法中考虑了扰动严重性分类和发电机运行模式(29),以便在各种系统扰动和运行条件下确定辅助励磁和涡轮机控制的最佳组合。 集成励磁和涡轮机控制器(23)的输出将被添加到现有的发电机控制器中,用于发电机瞬态稳定性增强和动态性能改进。 当干扰消失时,集成励磁和涡轮机控制器(23)的输出将自动逐步淘汰,以便最小化对发电机稳态电压和频率规定的影响。
    • 10. 发明申请
    • A POWER PLANT
    • 电厂
    • WO2008039121A1
    • 2008-04-03
    • PCT/SE2006/001110
    • 2006-09-29
    • ABB RESEARCH LTD.GERTMAR, LarsFRANKÉN, Bengt
    • GERTMAR, LarsFRANKÉN, Bengt
    • H02J3/38
    • H02J3/386Y02E10/763
    • A wind power plant has a plurality of wind power stations (1) distributed over an area (3), in which each station comprises a wind turbine (2) including a generator and a first step-up transformer (4). The power stations are interconnected in groups (10). Each group is connected to a separate second step-up transformer (7) located in the region of the group, and each said second step-up transformer is connected to a main cable (8) in common to all the stations for transfer of the total power generated by the plant to an electric power transmission network at a considerable distance to said area.
    • 风力发电厂具有分布在区域(3)上的多个风力发电站(1),其中每个站包括包括发电机和第一升压变压器(4)的风力涡轮机(2)。 发电站组(10)相互连接。 每个组连接到位于组的区域中的单独的第二升压变压器(7),并且每个所述第二升压变压器与所有站共用的主电缆(8)连接,用于传输 工厂向距离所述区域相当远的电力传输网络产生的总功率。