公开(公告)号：US09300131B2

公开(公告)日：2016-03-29

申请号：US13309201

申请日：2011-12-01

申请人： Lars Gertmar ,  Dennis Kron ,  Jiuping Pan ,  Yao Chen ,  Richard W. Vesel ,  Arash A. Babaee

发明人： Lars Gertmar ,  Dennis Kron ,  Jiuping Pan ,  Yao Chen ,  Richard W. Vesel ,  Arash A. Babaee

IPC分类号： H02J3/18 ,  H02J1/10

CPC分类号： H02J1/102 ,  H02J3/18 ,  Y10T307/336

摘要： An apparatus for use in an electrical power generation plant. The apparatus includes: at least two adjustable speed drives, each connected, on an alternating current side, to an associated auxiliary motor; at least one reactive power consuming auxiliary device connected to an alternating current bus; a controller; a converter for converting alternating current to direct current or vice versa between the alternating current bus and a direct current bus; and at least one electrical power source arranged to provide power to the direct current bus. Each of the at least two adjustable speed drive is connected, on a direct current side, to the direct current bus.

摘要翻译： 一种用于发电厂的设备。 该装置包括：至少两个可调速驱动器，每个在交流电侧连接到相关联的辅助马达; 连接到交流母线的至少一个无功功率辅助装置; 控制器 用于在交流母线和直流总线之间将交流电转换为直流或反之亦然的转换器; 以及至少一个电源，被布置成向直流母线提供电力。 至少两个可调速驱动器中的每一个在直流侧连接到直流总线。

公开(公告)号：US20140240880A1

公开(公告)日：2014-08-28

申请号：US14354670

申请日：2012-04-16

申请人： Yao Chen ,  Guoju Zhang ,  Jiuping Pan ,  Lars Gertmar ,  Rongrong Yu ,  Erich Suter

发明人： Yao Chen ,  Guoju Zhang ,  Jiuping Pan ,  Lars Gertmar ,  Rongrong Yu ,  Erich Suter

IPC分类号： H02H7/22

CPC分类号： H02H7/22 ,  H02J1/00 ,  H02J11/00

摘要： The present invention discloses a coordinated control method for power distribution system with DC bus electrification scheme and apparatus thereof. The method comprises: detecting what kind of disturbances occurs, and at least one of following steps: restoring the voltages of the failed DC buses if power loss is detected on the DC buses due to temporary or permanent failures of upstream power supplies; controlling the voltage of the abnormal DC buses if overvoltage or under-voltage is detected on the DC buses due to internal or external disturbances; and supporting the voltages of the abnormal AC buses if overvoltage or under-voltage is detected on the AC buses due to internal or external disturbances. The methods and apparatus can further improve the fault-ride-through capability for power plant under external or internal disturbances, and facilitate smooth automatic switching process between two DC buses etc.

摘要翻译： 本发明公开了一种具有DC总线通电方案及其装置的配电系统的协调控制方法。 该方法包括：检测发生什么样的干扰，以及至少一个以下步骤：由于上游电源的暂时或永久性故障，在DC总线上检测到功率损耗时，恢复故障的直流总线的电压; 由于内部或外部干扰，在直流母线上检测到过电压或欠电压时，控制异常直流母线的电压; 并且由于内部或外部干扰，在AC总线上检测到过电压或欠压时，支持异常AC总线的电压。 该方法和装置可以进一步提高发电厂在外部或内部干扰下的故障穿越能力，并促进两台直流母线之间的平滑自动切换过程。

公开(公告)号：US20120248874A1

公开(公告)日：2012-10-04

申请号：US13502856

申请日：2010-10-22

申请人： Jiuping Pan ,  Cathy-Yao Chen ,  Zhenyuan Wang ,  Lars Gertman

发明人： Jiuping Pan ,  Cathy-Yao Chen ,  Zhenyuan Wang ,  Lars Gertman

IPC分类号： H02J9/00

CPC分类号： H02J11/00 ,  H02J9/00 ,  Y10T307/615

摘要： Apparatus and method for controlling power in an auxiliary power system of a thermal power plant having a generator and one or more auxiliary buses. The apparatus includes adjustable speed drives and capacitance sources for connection to the one or more auxiliary buses and sensors for measuring voltage and reactive power on the one or more auxiliary buses. A controller is operable to control the adjustable speed drives and the capacitance sources to control the power factor of the auxiliary power system, while providing steady state voltage regulation and dynamic voltage support.

摘要翻译： 在具有发电机和一个或多个辅助总线的火力发电厂的辅助电力系统中控制电力的装置和方法。 该装置包括用于连接到一个或多个辅助总线和用于测量一个或多个辅助总线上的电压和无功功率的传感器的可调速驱动器和电容源。 控制器可操作以控制可调速驱动器和电容源来控制辅助电力系统的功率因数，同时提供稳态调节和动态电压支持。

公开(公告)号：US20150222122A1

公开(公告)日：2015-08-06

申请号：US14428630

申请日：2012-10-09

申请人： Reynaldo NUQUI ,  Yao CHEN ,  Jiuping PAN

发明人： Reynaldo F. Nuqui ,  Cathy Yao Chen ,  Jiuping Pan

IPC分类号： H02J3/40 ,  H02P9/00

CPC分类号： H02J3/40 ,  H02H7/067 ,  H02P1/029 ,  H02P9/006 ,  H02P9/10 ,  Y10T307/729 ,  Y10T307/735

摘要： Methods, systems, and computer readable media for adaptive out of step protection for power generators with load resynchronization capability are disclosed. According to one method, when a fault condition occurs in a load being supplied by a power generator, a number of pole slips expected to occur in the generator due to the fault before resynchronization is estimated. It is determined whether the estimated number of pole slips exceeds a threshold. An offline or online status of the generator is controlled based on the determination as to whether the estimated number of pole slips exceeds the threshold.

摘要翻译： 公开了用于具有负载再同步能力的发电机的自适应失步保护的方法，系统和计算机可读介质。 根据一种方法，当在由发电机提供的负载中发生故障状况时，估计由于再同步之前的故障而在发电机中发生的极滑数量。 确定估计的极滑数是否超过阈值。 基于关于所估计的极滑数是否超过阈值的确定来控制发电机的离线或在线状态。

公开(公告)号：US07272516B2

公开(公告)日：2007-09-18

申请号：US10745122

申请日：2003-12-23

申请人： Zhenyuan Wang ,  Jiuping Pan ,  David Lubkeman ,  Richard E. Brown

发明人： Zhenyuan Wang ,  Jiuping Pan ,  David Lubkeman ,  Richard E. Brown

IPC分类号： G01R21/00

CPC分类号： H02J3/00 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

摘要： Methodologies adjust a component failure rate for electric power network reliability analysis. A component may include subcomponents and the failure of each subcomponent may be feature dependent. Features are measurable or observable inputs, which can affect the life of one or more subcomponents. The failure rate of a particular component may be obtained according to its real conditions. The methodologies can be used to do condition-based reliability analysis for electric power networks, in order to obtain a maintenance/replacement/operation strategy.

摘要翻译： 方法调整电力网可靠性分析的组件故障率。 组件可以包括子组件，并且每个子组件的故障可以是特征相关的。 特征是可测量的或可观测的输入，可以影响一个或多个子部件的寿命。 特定部件的故障率可以根据实际情况获得。 这些方法可以用于对电力网络进行基于条件的可靠性分析，以获得维护/更换/操作策略。

公开(公告)号：US20140336833A1

公开(公告)日：2014-11-13

申请号：US14341165

申请日：2014-07-25

申请人： Antonis Marinopoulos ,  Heinz Lendenmann ,  Jiuping Pan ,  Kailash Srivastava ,  Mahyar Zarghami ,  Muhamad Reza

发明人： Antonis Marinopoulos ,  Heinz Lendenmann ,  Jiuping Pan ,  Kailash Srivastava ,  Mahyar Zarghami ,  Muhamad Reza

IPC分类号： G06N5/04 ,  G06N99/00 ,  H02P9/00

CPC分类号： G06N5/04 ,  F03D7/048 ,  F03D17/00 ,  F05B2260/821 ,  F05B2270/32 ,  F05B2270/321 ,  G01W1/10 ,  G06N20/00 ,  H02P9/008 ,  H02P2101/15 ,  Y02A90/14 ,  Y02E10/723

摘要： A system for producing electrical power based on wind energy is capable of predicting its power output. The system includes a set of wind turbine units, a first plurality of sensors each adapted to sense at least one wind characteristic at some of the wind turbine units, and a second plurality of sensors remotely located. At least one wind characteristic is estimated at the wind turbines not having one of the first plurality of sensors based on sensing by the first plurality of sensors and an estimate of changes in wind characteristic at wind turbine units caused by presence of other wind turbine units. The magnitude of electrical power production by the set of wind turbine units at at least one predefined point in time in the future is predicted based on the estimated wind characteristics and sensed wind characteristics.

摘要翻译： 基于风能生产电力的系统能够预测其功率输出。 该系统包括一组风力涡轮机单元，第一多个传感器，每个传感器适于感测一些风力涡轮机单元中的至少一个风特性，以及远程定位的第二多个传感器。 在没有基于第一多个传感器的感测的风力涡轮机中不具有第一多个传感器中的一个的风力涡轮机估计至少一个风特性，以及由其他风力涡轮机单元的存在引起的风力涡轮机单元的风特性变化的估计。 基于所估计的风特征和感测到的风特性来预测在未来的至少一个预定时间点的一组风力涡轮机组的电力产量的大小。

公开(公告)号：US09007733B2

公开(公告)日：2015-04-14

申请号：US14355449

申请日：2011-11-01

申请人： Jianping Wang ,  Jiuping Pan ,  Reynaldo Nuqui

发明人： Jianping Wang ,  Jiuping Pan ,  Reynaldo Nuqui

IPC分类号： H02H3/00 ,  G01R31/08 ,  H02H7/26

CPC分类号： G01R31/088 ,  G01R31/085 ,  H02H7/265

摘要： An improved method of fault detection in a high-voltage direct current (HVDC) power transmission line is provided. The fault detection is based on fault-induced travelling waves. The method comprises estimating an amplitude of fault-induced travelling waves at the fault location, and calculating a fault resistance (Rf) based on the estimated amplitude, an estimated pre-fault voltage at the fault location, and a surge impedance of the transmission line. The estimated fault amplitude and the estimated pre-fault voltage are calculated from voltage measurements performed at both ends of the transmission line. Further, a fault detection device is provided.

摘要翻译： 提供了一种改进的高压直流（HVDC）输电线路故障检测方法。 故障检测基于故障引起的行波。 该方法包括估计故障位置处的故障诱发的行波的振幅，以及基于估计的振幅，故障位置处的估计的故障前电压和传输线的浪涌阻抗来计算故障电阻（Rf） 。 估计的故障振幅和估计的故障前电压由传输线两端执行的电压测量计算。 此外，提供故障检测装置。

公开(公告)号：US06988092B1

公开(公告)日：2006-01-17

申请号：US10037397

申请日：2001-12-21

申请人： Le Tang ,  Xiaoming Feng ,  David Lubkeman ,  Anil Pahwa ,  Jiuping Pan ,  Lan Trinh ,  Zhenyuan Wang

发明人： Le Tang ,  Xiaoming Feng ,  David Lubkeman ,  Anil Pahwa ,  Jiuping Pan ,  Lan Trinh ,  Zhenyuan Wang

IPC分类号： G06F17/30

CPC分类号： G06Q10/06 ,  G06Q10/06393 ,  Y02P90/82 ,  Y10S707/99931

摘要： A computer implemented method uses a database of detailed, comprehensive utility operating and financial information. The method comprises: (1) feature based matching or similarity based benchmark and focus group selection; (2) a performance assessment procedure comprising multi-perspective analysis; and (3) multi-attribute business profiling and performance improvement potential analysis. As part of the performance assessment step, data corresponding to different utilities in a selected benchmark group are compared with each other to find their strengths and weaknesses. Interpretation of these gaps provides the cause of such gaps. Composite ranking analysis is used so that a composite score of at least one utility business is obtained.

摘要翻译： 计算机实现的方法使用详细，综合的实用程序操作和财务信息的数据库。 该方法包括：（1）基于特征的匹配或基于相似度的基准和焦点组选择; （2）包括多角度分析的绩效评估程序; 和（3）多属性业务剖析和绩效改进潜力分析。 作为绩效评估步骤的一部分，将与所选基准组中的不同实用程序相对应的数据进行比较，以找出其优缺点。 这些差距的解释是造成这种差距的原因。 使用综合排名分析，以获得至少一个公用事业的综合得分。

公开(公告)号：US09300132B2

公开(公告)日：2016-03-29

申请号：US13364550

申请日：2012-02-02

申请人： Jiuping Pan ,  Hongrae Kim ,  Jun Li ,  Jing Xu ,  Jyoti Sastry ,  Waqas Arshad

发明人： Jiuping Pan ,  Hongrae Kim ,  Jun Li ,  Jing Xu ,  Jyoti Sastry ,  Waqas Arshad

IPC分类号： H02J1/10 ,  H02J3/38 ,  H02J4/00 ,  H02J3/36 ,  H02M7/483

CPC分类号： H02J1/102 ,  H02J3/36 ,  H02J3/386 ,  H02J4/00 ,  H02M2007/4835 ,  Y02E10/763 ,  Y02E60/60 ,  Y10T307/707

摘要： A power generation system includes at least one generator having at least two sets of stator windings, an active rectifier comprising power cell based modular converters associated with each set of generator windings. Each set of windings is connected to an AC voltage side of the associated active rectifier, with each active rectifier having a positive DC voltage output and a negative DC voltage output. The DC voltage outputs of active rectifiers are connected to each other in series. A medium voltage DC (MVDC) collection network comprises positive pole cables and negative pole cables, wherein each positive pole cable is connected to the positive DC voltage output of a first active rectifier and each negative pole cable is connected to the negative DC voltage output of a last active rectifier. A substation receives the negative and positive pole cables of the MVDC collection network for further transformation and transmission.

摘要翻译： 发电系统包括具有至少两组定子绕组的至少一个发电机，包括与每组发电机绕组相关联的基于功率单元的模块转换器的有源整流器。 每组绕组连接到相关的有源整流器的AC电压侧，每个有源整流器具有正的直流电压输出和负的直流电压输出。 有源整流器的直流电压输出串联连接。 中压直流（MVDC）采集网络包括正极电缆和负极电缆，其中每个正极电缆连接到第一有源整流器的正直流电压输出，每个负极电缆连接到负极直流电压输出 最后一个有源整流器。 变电站接收MVDC收集网络的负极和正极电缆，用于进一步的变换和传输。

公开(公告)号：US09048694B2

公开(公告)日：2015-06-02

申请号：US13363574

申请日：2012-02-01

申请人： Jiuping Pan ,  Li Qi ,  Jun Li ,  Muhamad Reza ,  Kailash Srivastava

发明人： Jiuping Pan ,  Li Qi ,  Jun Li ,  Muhamad Reza ,  Kailash Srivastava

IPC分类号： B63H3/10 ,  G06Q50/06 ,  H02J3/00 ,  H02J3/38

CPC分类号： H02J3/386 ,  H02J3/36 ,  Y02E10/763 ,  Y02E60/60 ,  Y10T307/707

摘要： Connection schemes for offshore power generation with an internal collection grid include a power generation system which includes a plurality of generator-rectifier subsystems. The scheme further includes a medium voltage DC (MVDC) collection network with positive pole cables and negative pole cables connected to the DC outputs of the generator-rectifier subsystems. At least one offshore substation includes a positive bus bar and a negative bus bar correspondingly connected to the positive pole cables and negative pole cables of the MVDC collection network and a plurality of main DC-DC converters. Each main DC-DC converter includes multiple modules connected to the MVDC bus bars and each module has a positive and a negative output such that the modules' outputs are serially connected to one another. The schemes may also include a high voltage DC (HVDC) transmission system connected to the modules' outputs and at least one DC/AC converter at an onshore substation.

摘要翻译： 具有内部收集网格的海上发电连接方案包括包括多个发电机 - 整流器子系统的发电系统。 该方案还包括一个中压直流（MVDC）收集网络，其中正极电缆和负极电缆连接到发电整流器子系统的直流输出端。 至少一个离岸变电站包括正母线和负母线，其对应地连接到MVDC收集网络的正极电缆和负极电缆以及多个主DC-DC转换器。 每个主DC-DC转换器包括连接到MVDC母线的多个模块，并且每个模块具有正和负输出，使得模块的输出彼此串联。 这些方案还可以包括连接到模块的输出的高压DC（HVDC）传输系统和在岸变电站的至少一个DC / AC转换器。