Generator system for internal combustion engine
    91.
    发明公开
    Generator system for internal combustion engine 失效
    内燃机发电机系统

    公开(公告)号:EP0817367A3

    公开(公告)日:1998-04-29

    申请号:EP97109144.2

    申请日:1997-06-05

    IPC分类号: H02P9/48

    摘要: There is provided a generator system for internal combustion engines, which can produce power efficiently at all times irrespective of the engine speed even for use in an internal combustion engine operated at variable speeds such as a vehicle engine. An ACG.ECU 3 determines a rotation speed N2 of a rotating electromagnetic field to be generated by a rotor 1R based on a mechanical rotation speed N1 of the rotor 1R in an alternator 1 such that the relative speed N of the rotating magnetic field to a stator 1S agrees with the maximum efficiency speed of rotation Nx. Then the ACG.ECU 3 sends the determined value to a rotating electromagnetic field controller 2a. The rotating electromagnetic field controller 2a controls phases of AC power to be supplied to a three-phase coil 11 of the rotor 1R to generate a rotating electromagnetic field with the rotation speed N2.

    摘要翻译: 提供了一种用于内燃机的发电机系统,该发电机系统无论发动机转速如何都可以在任何时候有效地产生动力,甚至用于以变速运行的内燃机中,例如车辆发动机。 ACG.ECU3基于交流发电机1中的转子1R的机械转速N1来确定由转子1R产生的旋转电磁场的转速N2,使得转子1R的旋转磁场的相对速度N 定子1S与最大效率转速Nx一致。 然后,ACG.ECU 3将所确定的值发送到旋转电磁场控制器2a。 旋转电磁场控制器2a控制供给到转子1R的三相线圈11的交流电力的相位,以产生具有转速N2的旋转电磁场。

    Variable speed generator-motor apparatus capable of improving accuracy of power system
    92.
    发明公开
    Variable speed generator-motor apparatus capable of improving accuracy of power system 失效
    与变速发电机 - 马达装置,能够进行电力的系统的改进精度的

    公开(公告)号:EP0688095A3

    公开(公告)日:1996-05-29

    申请号:EP95109225.3

    申请日:1995-06-14

    CPC分类号: H02P23/08 H02P9/007 H02P9/42

    摘要: A variable velocity generator-motor apparatus includes a wound rotor induction generator-motor having a primary winding connected to a power system, a secondary winding excited by an alternating current (AC) and a generator shaft; a prime-mover/load united with the generator shaft; a frequency detection element for detecting an AC excitation frequency on the basis of power data including a frequency and a voltage phase in the power system and data of the generator shaft; an element for generating a slip frequency command value in the generator-motor; and a frequency control element for controlling the generator-motor in the manner that the AC excitation frequency is set to the slip frequency command value.

    摘要翻译: 可变速度发电机 - 马达装置包括一个具有初级绕组连接到电力系统中的绕线转子感应发电机 - 马达,一个次级绕组激磁通过到交流(AC)和一个发电机轴; 一个原动机/负载与发电机轴团结; 对于功率的数据,包括一个频率,并在电力系统和发电机轴的数据的电压相位的基础上AC励磁频率的检测的频率检测元件; 上,用于产生在所述发电电动机的转差频率指令值元件; 和用于控制的方式的发电电动机的频率控制元件做了AC励磁频率设置为转差频率指令值。

    Abgasturbinen-Generatoranlage
    96.
    发明公开
    Abgasturbinen-Generatoranlage 失效
    Abgasturbinen-Generatoranlage。

    公开(公告)号:EP0378085A2

    公开(公告)日:1990-07-18

    申请号:EP90100064.6

    申请日:1990-01-03

    IPC分类号: H02P9/42 F02G5/02 H02P9/04

    摘要: Abgasturbinen-Generatoranlage für Dieselmotoren, insbesondere für Schiffsdieselmotoren mit oder ohne Wellengenerator sowie für kombi­nierten Wellengenerator-Motor und Generatorbetrieb mit oder ohne frequenzentkoppelte Umrichter. Ein überschüssiger Teil der Dieselmo­torabgase wird einer Nutzturbine zugeführt. Zur Optimierung der Ener­gieeinsparung wird ein fremderregter, von der Nutzturbine über ein Untersetzungsgetriebe angetriebener Synchrongenerator (Turbogenerator) verwendet, der über einen Netzschalter die Energie in ein Netz oder auf einen Synchronwellengenerator des Dieselmotors einspeist. Ein über einen Antiduktor ansteuerbarer Widerstand zur Belastung des Turboge­nerators bei Lastausfall des Netzes ist so dimensioniert, daß er kleiner als die Nennreaktanz des Turbogenerators ist. Vor dem Anfahren der Turbine und Öffnen der Abgasklappe wird der Generator erregt, der Antiduktor gezündet und der Netzschalter geöffnet. Nach dem Öffnen der Abgasklappe wird mit einer Frequenzregelung und Stellung des Belastungsstroms im Belastungswiderstand durch den Antiduktor die Frequenz des Turbogenerators an die des Inselnetzes oder eines Wel­lengenerators herangefahren und über den Netzschalter (S1) zusynchro­nisiert.

    摘要翻译: 一种用于柴油发动机的废气涡轮发电机装置,特别是用于具有或不具有轴发电机的船用柴油发动机以及用于组合轴发电机 - 电动机和具有或不具有频率分离的逆变器的发电机操作的废气涡轮发电机装置。 柴油发动机废气的一部分被供给到动力涡轮机。 为了优化节能,使用由动力涡轮经由降压传动驱动的外部激励同步发电机(涡轮发电机),其通过网络交换机将能量提供给网络或同步 柴油发动机的轴发电机。 在网络负载脱落的情况下,可以通过反向驱动器驱动用于加载涡轮发电机的电阻的尺寸使其小于涡轮发电机的额定电抗。 在涡轮机启动之前,排气挡板打开,发电机被激励,反向阀被打开,网络开关打开。 在排气阀打开后,通过调压和控制负载电阻中的负载电流,涡轮发电机的频率通过反向驱动器被驱动到岛式网络或轴发电机的频率,并且 通过网络交换机同步(S1)。

    Improvements in synchronous generators
    98.
    发明公开
    Improvements in synchronous generators 失效
    Synchrongeneratoren。

    公开(公告)号:EP0311717A1

    公开(公告)日:1989-04-19

    申请号:EP87308984.1

    申请日:1987-10-12

    IPC分类号: H02K19/36 H02P9/48

    摘要: In a compound electromechanical assembly a first singly fed stage is mounted for common rotation with a second singly fed stage mounted for common rotation with a second singly fed stage impedance inserted between the secondaries, interconnected in inverted connection to form an electrical loop. The impedance includes a resistor (R20) and a capacitor (C20) connected in parallel.

    摘要翻译: 在复合机电组件中,第一单独馈送台安装成用于共同旋转,第二单馈馈台安装成用于共同旋转,第二单馈馈级插入在次级之间,互连成反相连接以形成电循环。 阻抗包括并联连接的电阻器(R20)和电容器(C20)。

    Induction machine system
    99.
    发明公开
    Induction machine system 失效
    感应机系统

    公开(公告)号:EP0253294A3

    公开(公告)日:1989-04-19

    申请号:EP87109868.7

    申请日:1987-07-08

    IPC分类号: H02P9/04 H02P9/10 H02P9/42

    摘要: An induction system of the invention is adapted to apply coordinate transformation to the excitation current reference vector corresponding to the primary interlinkage magnetic flux vector reference value and the primary current vector so that they exist in the same coordinate system, thereafter to control the secondary current vector so that the primary interlinkage magnetic flux vector is in correspondence with the primary interlinkage magnetic flux vector, thereby allowing the primary side of the wound-rotor induction machine to function apparently as a voltage source.

    Control system for variable speed water-wheel generator apparatus
    100.
    发明公开
    Control system for variable speed water-wheel generator apparatus 失效
    变速水轮发电机装置控制系统

    公开(公告)号:EP0245777A3

    公开(公告)日:1988-06-15

    申请号:EP87106616

    申请日:1987-05-07

    申请人: HITACHI, LTD.

    IPC分类号: H02P09/42 H02P09/04

    摘要: A control system is used for a variable speed water-wheel generator apparatus. The generator apparatus includes a generator (1) having a primary winding (1a) connected to an electric power system (4) and a secondary winding (1b) connected to the electric power system (4) through a frequency converter (3), and a water wheel (2) directly coupled to a shaft of the generator and having variable opening vanes. In the control system, a first function generator (5) is responsive to at least an output command signal (Po) for the generator apparatus to determine a rotation number command signal (Na). A speed adjuster (10, 11) produces an output signal in accordance with a signal indicative of a difference between the output signal of the first function generator and an actual rotation number. An adder (13) adds the output command signal for the generator apparatus to the output signal of the speed adjuster to determine an overall output command signal (Po'). An output adjuster (15, 17) produces an output signal in accordance with a signal indicative of a difference between the output signal of the adder and actual power of the generator whereby firing angles of the frequency converter are controlled by the output signal of the output adjuster. A second function generator (5) is responsive to the output command signal (Po) for the generator apparatus to determine an opening command signal (Ya) for the variable opening vanes of the water wheel. An opening adjuster (8) produces an output signal in accordance with a signal indicative of a difference between the output signal of the second function generator and an actual opening of the variable opening vanes of the water wheel whereby the variable opening vanes of the water wheel are controlled by the output signal of the opening adjuster. The first and second function generators increase command values for the rotation number and the variable opening vanes, respectively, as the output command signal increases. The frequency converter is controlled such that the rotation number tending to go beyond a predetermined operation range is confined within the predetermined operation range.