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    • 22. 发明公开
    • DISTRIBUTED POWER GENERATION SYSTEM AND METHOD FOR OPERATING SAME
    • DEZENTRALES STREMERZEUGUNGSSYSTEM UND BETRIEBSVERFAHRENDAFÜR
    • EP2693590A1
    • 2014-02-05
    • EP12764087.8
    • 2012-03-08
    • Panasonic Corporation
    • SATO, KeiichiKATOU, MotomichiKAKU, HiroakiKAKE, NinNAGASATO, Hiroshi
    • H02J3/38
    • H02J3/381H02J3/383H02J3/387H02J2003/388Y02E10/563Y10T307/642
    • A distributed power generation system of the present invention is a distributed power generation system connected to an electric wire (33) connecting a power supply utility (21) to a power load (24), in which a second power generation device (29) is connected to the electric wire (33) in a position between the power supply utility (21) and a first connection point (24), the distributed power generation system comprising: an inverter (25) connected to the first connection point (23); a first power generation device (27), a current sensor (22) provided on the electric wire (33) in a position between the utility power supply (21) and the first connection point (23); and a controller (26) wherein in a case where a current flowing in a direction from the first connection point (23) to the power supply utility (21) is a positive current, the controller (26) determines that there is an abnormality in an installation state of the current sensor (22), or performs notification of the abnormality in the installation state ofthe current sensor (22), when an electric power difference obtained by subtracting electric power consumed in the power load (24) from the electric power output from the inverter (25) is greater than a first threshold which is greater than 0.
    • 本发明的分布式发电系统是与将电力供应器(21)连接到电力负载(24)的电线(33)连接的分布式发电系统,其中第二发电装置(29)是 在所述电力供应器(21)和第一连接点(24)之间的位置处连接到所述电线(33),所述分布式发电系统包括:连接到所述第一连接点(23)的逆变器(25); 第一发电装置(27),在公用电源(21)和第一连接点(23)之间的位置上设置在电线(33)上的电流传感器(22)。 以及控制器(26),其中,在从所述第一连接点(23)向所述电源(21)的方向流动的电流为正电流的情况下,所述控制器(26)确定存在异常 电流传感器(22)的安装状态,或者当通过从电力中减去功率负载(24)中消耗的电力而获得的电力差异,进行电流传感器(22)的安装状态的异常的通知 来自逆变器(25)的输出大于大于0的第一阈值。
    • 25. 发明公开
    • Device and method for the disconnection and subsequent reconnection of an inverter to/from an electrical network
    • 装置和方法的逆变器的从/到电网的分离和随后的重新连接
    • EP2621048A1
    • 2013-07-31
    • EP12382030.0
    • 2012-01-27
    • Circutor, S.A.
    • Carreras Margalef, RamonGalvez Moreno, EduardoHeredero Peris, DanielGross, Gabriel IgorMontesinos Miracle, DanielPages Gimenez, MarcTorne Pibernat, Marti
    • H02J3/44H02J3/38
    • H02J3/383H02J3/44H02J2003/388Y02E10/563
    • Device and method for disconnecting and reconnecting an inverter initially connected to the electrical network and working as a current source (CSC) comprising the steps of continuously monitoring the instantaneous voltage and frequency of the electrical network until detecting that one of said parameters is outside normal predetermined ranges; disconnecting the inverter from the electrical network and maintaining the inverter voltage at the nominal voltage and frequency of the electrical network; continuously monitoring the instantaneous voltage and frequency of the network until detecting that their parameters are stable within said normal predetermined ranges; and reconnecting the inverter to the electrical network. The method further comprises steps for switching the inverter so that it works as a voltage source (VSC), setting the inverter voltage at the nominal voltage and frequency of the electrical network; and fixing the inverter output angle according to an internal clock having a frequency equal to the nominal frequency of the electrical network.
    • 设备和方法,用于断开和重新连接到逆变器最初被连接到电网并且作为电流源(CSC)的工作,其包括连续监测电网的瞬时电压和频率,直到检测所做的步骤,所述参数中的一个是外正常预定 范围; 断开电网的逆变器和维护在标称电压和电网的频率的逆变器电压; 连续地监视网络的瞬时电压和频率,直到检测做他们的参数所述正常规定的范围内是稳定的; 并重新连接到逆变器的电网络。 该方法进一步包括步骤,用于切换所述逆变器,以便做它可以作为一个电压源(VSC),在电网的额定电压和频率设定逆变器电压; 和在内部时钟逆变器输出角gemäß固定到具有等于所述电网络的标称频率的频率。
    • 26. 发明公开
    • Power supply system of a marine vessel
    • Stromversorgungssystemfürein Wasserfahrzeug
    • EP2595265A1
    • 2013-05-22
    • EP11189595.9
    • 2011-11-17
    • Siemens Aktiengesellschaft
    • Radan, Damir
    • H02J3/00H02J4/00B63H23/24
    • H02P9/107B63H23/24B63J3/02H02J3/006H02J4/00H02J2003/388
    • A power supply system of a marine vessel is provided. The power supply system is adapted to be coupled to a power distribution bus of a marine vessel for powering a plurality of electric motors coupled to the power distribution bus. The power supply system includes a generator for generating electric power and a control system coupled to the generator and adapted to control the output voltage of the generator in accordance with a voltage setpoint. The control system includes a measuring unit for measuring a parameter of the electric power generated by the generator and the control unit adapted to control the voltage setpoint for the output voltage of the generator in dependence on the measured parameter.
    • 提供了一种海洋船舶的供电系统。 电源系统适于耦合到船舶的配电总线,用于为耦合到配电总线的多个电动马达供电。 电源系统包括用于产生电力的发电机和耦合到发电机的控制系统,并且适于根据电压设定点来控制发电机的输出电压。 控制系统包括测量单元,用于测量由发电机产生的电力的参数,以及控制单元,其适于根据所测量的参数来控制发电机的输出电压的电压设定值。
    • 27. 发明公开
    • Method and apparatus for detecting islanding conditions of a distributed grid
    • Verfahren und Vorrichtung zur Erkennung der Inselbildungsbedingungen eines verteilten Rasters
    • EP2590291A1
    • 2013-05-08
    • EP11187790.8
    • 2011-11-04
    • ABB Research Ltd.
    • Escobar, GerardoPettersson, SamiSerpa, Leonardo-AugustoHo, Ngai-ManCoccia, AntonioOudalov, AlexandreTimbus, Adrian
    • H02J3/38
    • H02J3/38H02J2003/388
    • A method for detecting islanding conditions of a distributed grid, wherein transfer of power through a power electrical unit is controlled on the basis of a control reference and the method comprises a first stage and a second stage. The first stage comprises injecting a reactive component to the control reference, and, for at least one electrical quantity of the grid, determining a change in the quantity induced by the injected component, and determining, on the basis of the change in the electrical quantity, whether or not to move to the second stage of the method. The second stage comprises, for at least one electrical quantity of the grid, determining a value of the electrical quantity, forming a positive feedback term using at the determined value adding a positive feedback term to the control reference, determining a change in an electrical quantity induced by the feedback term, and determining islanding condition on the basis of the change in the quantity induced by the feedback term.
    • 一种用于检测分布式电网的孤岛状态的方法,其中基于控制参考来控制通过功率电单元的电力传输,并且所述方法包括第一级和第二级。 第一阶段包括向控制基准注入无功分量,并且对于电网的至少一个电量,确定由所注入的分量引起的量的变化,并且基于电量的变化 ,是否移动到方法的第二阶段。 第二级包括对于电网的至少一个电量,确定电量的值,使用在确定的值处形成正反馈项,将正反馈项添加到控制参考,确定电量的变化 由反馈项引起,并且基于由反馈项引起的量的变化来确定孤岛状态。
    • 28. 发明公开
    • Phase angle shift of fundamental frequency phasor for islanding protection of a distributed generator
    • 在基频处的空间矢量的相移用于在分布式发电机检测孤岛运行
    • EP2538517A1
    • 2012-12-26
    • EP11171147.9
    • 2011-06-23
    • ABB Technology AG
    • Vanhala, KariKoivula, Petri
    • H02J3/38
    • H02H1/0007H02J3/40H02J2003/388
    • A protection relay for protection of an electric network, comprising measuring (706) an electric signal in the network. The protection relay comprises converting (706) the measured signal to a frequency domain representation of the measured signal, generating (706) a measuring phasor (622E) based on the frequency domain representation, the phase rotation of the measuring phasor being dependent on one or more frequency components present in the measured electric signal, comparing (714) the measuring phasor to the reference phasor (620E), the phase rotation of the reference phasor being based on either a nominal or a measured frequency of the electric network, and launching (716) protection if the comparison of the of the measuring phasor and the reference phasor fulfils a predetermined criterion.
    • 保护继电器为网络中的保护电力网的方法,包括测量(706)到电信号。 所述保护继电器包括将基于所述频域表示(706)所测量的信号所测量的信号的频域表示,生成(706)的测量相量(622E)中,测量相量的相位旋转依赖于一个或 多个频率分量的存在于所述测量的电信号,比较(714)所述测量相量的参考相量(620E)中,参考相量的相位旋转是基于要么标称或电网的测量频率,并启动( 716)保护如果相量的测量和参考相量的比较满足预定准则。