SYSTEM FOR SUPPLYING ELECTRICAL POWER TO A LOAD AND CORRESPONDING POWER SUPPLY METHOD
    2.
    发明申请
    SYSTEM FOR SUPPLYING ELECTRICAL POWER TO A LOAD AND CORRESPONDING POWER SUPPLY METHOD 有权
    将电力供应到负载和相应电源方法的系统

    公开(公告)号:US20150372625A1

    公开(公告)日:2015-12-24

    申请号:US14746930

    申请日:2015-06-23

    IPC分类号: H02P9/46 H02P9/08

    CPC分类号: H02P9/46 H02P9/08

    摘要: This system for supplying electrical power to a load includes an asynchronous generator including a cage rotor intended to be driven by motor means and a rectifier adapted to rectify the voltage delivered by the generator. The rectifier is a rectifier employing unidirectional electronic components. The power supply system further includes a reactive power source for magnetizing the asynchronous generator.

    摘要翻译: 用于向负载提供电力的该系统包括异步发电机,其包括旨在由电动机装置驱动的笼式转子和用于对由发电机输送的电压进行整流的整流器。 整流器是采用单向电子元件的整流器。 电源系统还包括用于磁化异步发电机的无功电源。

    AIRCRAFT POWER SUPPLY CIRCUIT INCLUDING AN ASYNCHRONOUS MACHINE
    3.
    发明申请
    AIRCRAFT POWER SUPPLY CIRCUIT INCLUDING AN ASYNCHRONOUS MACHINE 有权
    飞机供电电路包括异步电机

    公开(公告)号:US20130234679A1

    公开(公告)日:2013-09-12

    申请号:US13884795

    申请日:2011-11-07

    IPC分类号: H02P9/46

    CPC分类号: H02P9/46 H02P2101/30

    摘要: A power supply circuit for supplying electrical energy in an aircraft, the circuit including a power supply generator configured to be driven in rotation by the engine of the aircraft to power electrical equipment of the aircraft engine. The power supply generator includes an asynchronous machine connected to an excitation device. The asynchronous machine includes a rotor configured to be driven in rotation by the engine and a stator connected to the electrical equipment. The excitation device is configured to cause a reactive current of flow in the stator.

    摘要翻译: 一种用于在飞行器中提供电能的电源电路,所述电路包括被配置为由飞行器的发动机旋转驱动的电力供应发电机,以为飞行器发动机的电气设备供电。 电源发生器包括连接到激励装置的异步电机。 异步电机包括被配置为由发动机旋转驱动的转子和连接到电气设备的定子。 励磁装置被配置成引起定子中的无功电流。

    Motor Vehicle Comprising a Recuperation Generator
    4.
    发明申请
    Motor Vehicle Comprising a Recuperation Generator 有权
    包括恢复发电机的机动车辆

    公开(公告)号:US20080122409A1

    公开(公告)日:2008-05-29

    申请号:US11665846

    申请日:2005-10-07

    申请人: Josef Winkler

    发明人: Josef Winkler

    IPC分类号: B60L11/02 B60L7/10 H02P9/46

    摘要: Disclosed is a motor vehicle comprising a generator and at least one capacitor in which recuperation power generated in a thrust phase by the generator that can be operated as a recuperator can be stored. The excitation current (IErr) that limits the power of the generator (3) can be varied in the excitation circuit of the generator (3) in accordance with at least one vehicle-specific operational parameter arid/or the actual charge of the capacitor (10).

    摘要翻译: 公开了一种机动车辆,其包括发电机和至少一个电容器,其中可以存储可由发电机在推力相位中产生的能够作为换热器操作的回流功率的电容器。 限制发电机(3)的功率的励磁电流(I SUB)可以在发电机(3)的励磁电路中根据至少一个车辆特定的操作参数和/ 或电容器(10)的实际电荷。

    Variable speed wind turbine generator with zero-sequence filter
    5.
    发明授权
    Variable speed wind turbine generator with zero-sequence filter 失效
    具有零序过滤器的变速风力发电机组

    公开(公告)号:US5798632A

    公开(公告)日:1998-08-25

    申请号:US870858

    申请日:1997-06-06

    申请人: Eduard Muljadi

    发明人: Eduard Muljadi

    摘要: A variable speed wind turbine generator system to convert mechanical power into electrical power or energy and to recover the electrical power or energy in the form of three phase alternating current and return the power or energy to a utility or other load with single phase sinusoidal waveform at sixty (60) hertz and unity power factor includes an excitation controller for generating three phase commanded current, a generator, and a zero sequence filter. Each commanded current signal includes two components: a positive sequence variable frequency current signal to provide the balanced three phase excitation currents required in the stator windings of the generator to generate the rotating magnetic field needed to recover an optimum level of real power from the generator; and a zero frequency sixty (60) hertz current signal to allow the real power generated by the generator to be supplied to the utility. The positive sequence current signals are balanced three phase signals and are prevented from entering the utility by the zero sequence filter. The zero sequence current signals have zero phase displacement from each other and are prevented from entering the generator by the star connected stator windings. The zero sequence filter allows the zero sequence current signals to pass through to deliver power to the utility.

    摘要翻译: 一种变速风力发电机系统,用于将机械功率转换为电力或能量,并以三相交流电的形式恢复电力或能量,并将功率或能量返回给具有单相正弦波形的公用设施或其他负载 六十(60)赫兹和单位功率因数包括一个用于产生三相指令电流的励磁控制器,一个发电机和一个零序滤波器。 每个指令的电流信号包括两个分量:正序可变频率电流信号,以提供在发电机的定子绕组中所需的平衡三相励磁电流,以产生从发电机恢复最佳功率水平所需的旋转磁场; 以及零频率六十(60)赫兹电流信号,以允许发电机产生的实际功率被提供给该公用设施。 正序电流信号是平衡的三相信号,并且被零序滤波器阻止进入电力公司。 零序电流信号彼此之间具有零相位移,并被星形连接的定子绕组阻止进入发电机。 零序滤波器允许零序电流信号通过以将功率传递给公用设施。

    Variable-speed drive for control of induction generators
    6.
    发明授权
    Variable-speed drive for control of induction generators 失效
    用于感应发电机控制的变速驱动

    公开(公告)号:US4401938A

    公开(公告)日:1983-08-30

    申请号:US220865

    申请日:1980-12-29

    申请人: Michael J. Cronin

    发明人: Michael J. Cronin

    摘要: The invention is an aircraft power generation system which utilizes an induction-machine (G.sub.1) as a primary generator of variable-voltage/variable-frequency power. The induction-machine (G.sub.1) is directly driven by the engine (14) and is excited by an excitation-generator (G.sub.2) such that the induction-machine (G.sub.1) operates in a generating mode. A variable-speed drive (20), shown as a toroidal drive (30), controls the excitation frequency of the induction-machine (G.sub.1) such that the negative slip-frequency is controlled as a function of the input speeds (N.sub.1), (N.sub.2) and the electric load on the generator. Control of the toroidal drive (30) and thus speed (N.sub.2) is accomplished by a negative-slip control circuit which includes a drive control logic circuit (36), a proportional actuator (34), a control-start panel (48), and a steering mechanism (32).In another aspect of the invention, the induction-machine (G.sub.1) operates in a start-mode to start the engine (14). In this mode of operation, after engine starting is initiated from control-start panel (48), a start-logic circuit (52) establishes a programmed voltage/frequency output from a start-power electronics source (46). The voltage/frequency output, programmed from a low value, against time, up to a predetermined high value is applied to the induction-machine (G.sub.1) field to bring the engine (14) up to speed.

    摘要翻译: 本发明是利用感应电机(G1)作为可变电压/可变频率功率的主要发生器的飞机发电系统。 感应电机(G1)由发动机(14)直接驱动,并且由励磁发电机(G2)激发,使得感应电机(G1)以发电模式工作。 示出为环形驱动器(30)的变速驱动器(20)控制感应电机(G1)的激励频率,使得负滑差频率作为输入速度(N1)的函数被控制, (N2)和发电机上的电负载。 环形驱动器(30)的控制和速度(N2)的控制由负滑动控制电路实现,该滑动控制电路包括驱动控制逻辑电路(36),比例致动器(34),控制启动面板(48) 和转向机构(32)。 在本发明的另一方面,感应电机(G1)以起动模式工作以启动发动机(14)。 在这种操作模式中,在控制起动面板(48)启动发动机起动之后,起动逻辑电路(52)建立从起动电力电子源(46)输出的编程电压/频率。 将从低值编程的时间,直到预定的高值的电压/频率输出施加到感应电机(G1)场,以使发动机(14)达到速度。

    Electricity generator
    9.
    发明授权
    Electricity generator 有权
    发电机

    公开(公告)号:US09431944B2

    公开(公告)日:2016-08-30

    申请号:US12865559

    申请日:2009-02-02

    摘要: A wind turbine and generator arrangement comprises a turbine that drives a self-excited induction generator via a shaft and mechanical gearbox. The induction generator includes an electrical circuit that includes a variable capacitance and a variable resistance. The variable capacitance may be constituted by a fixed capacitor and a triac under the control of a controller, or by a bank of capacitors switched by a relay under control of the controller. The variable resistance includes a triac controlled resistor or a bank of relay-switched resistors which constitute heating elements for heating domestic hot water. In use the generator frequency and voltage are allowed to ‘float’ while the optimal generator power output is maintained, but adjusting the impedance of the electrical circuit as the wind speed varies.

    摘要翻译: 风力涡轮机和发电机装置包括通过轴和机械齿轮箱驱动自激励感应发电机的涡轮机。 感应发电机包括包括可变电容和可变电阻的电路。 可变电容可以由控制器控制下的固定电容器和三端双向可控硅开关构成,或者由控制器控制下由继电器切换的电容器组构成。 可变电阻包括三端双向程序控制电阻器或一组继电器开关电阻器,其构成用于对家用热水进行加热的加热元件。 在使用中,发电机的频率和电压允许“浮动”,同时保持最佳的发电机功率输出,但随着风速的变化调整电路的阻抗。

    Direct power control with component separation
    10.
    发明授权
    Direct power control with component separation 有权
    直接功率控制与组件分离

    公开(公告)号:US08698461B2

    公开(公告)日:2014-04-15

    申请号:US13063148

    申请日:2008-09-11

    IPC分类号: H02P9/46

    摘要: The invention relates to a method to control power output of a doubly-fed induction machine to a grid including the steps of measuring grid voltage and grid current in a three phase coordinate system, transforming grid voltage and grid current into a stator frame coordinate system, decomposing the grid voltage and grid current in the stator frame coordinate system in a positive sequence system and in a negative sequence system, calculating active and reactive power in the positive and negative sequence system, and controlling active and reactive power in the positive and negative sequence system. The object to provide a method to control power output of a doubly-fed induction machine which provides good dynamics and is able to allow fault-ride-through operations when unbalanced grid voltages occurs is solved in that active and reactive power in the positive and negative sequence system are used as independent state variables in a state controller, whereas the state controller generates manipulated values in the positive and negative sequence system separately which are subjected as manipulated state vectors to a state feedback in a stator frame coordinate system without further control loops before the manipulated vector resulting from state feedback is used to set the rotor voltage.

    摘要翻译: 本发明涉及一种控制双馈感应电机到电网的功率输出的方法,包括以下步骤:测量三相坐标系中的电网电压和电网电流,将电网电压和电网电流转换成定子框架坐标系, 在正序系统和负序系统中分解定子框坐标系中的电网电压和电网电流,计算正序和负序系统中的有功和无功功率,并控制正序和负序中的有功和无功功率 系统。 目的是提供一种控制双馈感应电机的功率输出的方法,其提供良好的动力学并且能够在发生不平衡电网电压时允许故障穿越操作被解决为正和负的有功和无功功率 序列系统被用作状态控制器中的独立状态变量,而状态控制器分别在正序和负序系统中生成被作为操纵状态向量的受控值到定子帧坐标系中的状态反馈,而没有进一步的控制回路 由状态反馈产生的操纵矢量用于设定转子电压。