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1.发明申请GENERATOR FOR GAS TURBINE ENGINE HAVING DC BUS FAULT SHORT CIRCUIT CONTROL USING A BATTERY 有权使用电池进行直流母线故障短路控制的气体发动机发电机公开(公告)号：US20090045293A1
公开(公告)日：2009-02-19
申请号：US11839823
申请日：2007-08-16
IPC分类号： B64D31/00
CPC分类号： B64D33/00 , B64D2221/00 , H02J9/06
摘要： An aircraft electrical system comprises a generator to be driven as part of a gas turbine engine. The generator supplies electrical power to a plurality of accessories associated with the gas turbine engine, and to an aircraft DC bus in parallel to the supply to the accessories. A battery supplies voltage to a control circuit for the generator through a selectively opened and closed switch. A control detects a short circuit on the aircraft DC bus. The battery switch allows power from the battery to flow to provide control voltage for the generator when the control detects a short circuit on the aircraft DC bus.
摘要翻译： 飞机电气系统包括作为燃气涡轮发动机的一部分驱动的发电机。 发电机对与燃气涡轮发动机相关联的多个附件以及平行于附件供应的飞机DC总线供电。 电池通过选择性地打开和关闭的开关向发电机的控制电路提供电压。 控制器检测飞机直流总线上的短路。 当控制器检测到飞机直流总线上的短路时，电池开关允许来自电池的电力流动以提供发电机的控制电压。
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公开(公告)号：US07091702B2
公开(公告)日：2006-08-15
申请号：US11005826
申请日：2004-12-07
申请人： David J. Mrowiec , William J. Peterson , Eric A. Henderson , Vijay K. Maddali , Wayne H. Oldenburg
发明人： David J. Mrowiec , William J. Peterson , Eric A. Henderson , Vijay K. Maddali , Wayne H. Oldenburg
IPC分类号： H02P9/00
CPC分类号： H02J3/46 , H02J3/44 , Y10T307/50
摘要： The present invention is a generator control system where each generator in the system has an associated controller. Each controller communicates generator data or information with the other controllers in the generator control system. Each of the controllers includes a digital signal processor for analyzing the generator signal from the associated generator and information from the other controllers in the generator control system. The controllers each compare their generator signal with a system average and adjust the associated generator until the generators all supply equal amounts of power to the system.
摘要翻译： 本发明是发电机控制系统，其中系统中的每个发电机具有相关的控制器。 每个控制器将发电机数据或信息与发电机控制系统中的其他控制器进行通信。 每个控制器包括用于分析来自相关联的发生器的发电机信号的数字信号处理器和来自发电机控制系统中的其他控制器的信息。 控制器将发生器信号与系统平均值进行比较，并调整相关的发电机，直到发电机全部为系统提供相等的电力。
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公开(公告)号：US5327335A
公开(公告)日：1994-07-05
申请号：US952108
申请日：1992-09-28
IPC分类号： H02M1/12 , H02M7/5395
CPC分类号： H02M7/5395 , H02M1/12
摘要： Harmonics in the AC output power of an inverter are sensed and are compared to corresponding references to produce a plurality of errors. These errors are used to produce a harmonic waveform which is in turn used in a triangular waveform PWM pulse generator to generate PWM pulses. The PWM pulses control the inverter so as to convert DC power into AC power and so as to reduce harmonics in the AC power.
摘要翻译： 感测逆变器的交流输出功率的谐波，并将其与相应的参考值进行比较以产生多个误差。 这些误差用于产生谐波波形，该谐波波形又用于三角波PWM脉冲发生器以产生PWM脉冲。 PWM脉冲控制逆变器，将直流电转换成交流电源，以减少交流电源的谐波。
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公开(公告)号：US5016157A
公开(公告)日：1991-05-14
申请号：US428759
申请日：1989-10-30
摘要： The problem of reducing harmonic content of AC bus voltage in a power system (10) is minimized using a controller (30) for a PWM inverter (38). The controller (30) develops a duty cycle command on a line (40) for controlling operation of the PWM inverter (38). The controller (30) develops the duty cycle command to maintain the PWM inverter output voltage at a desired level. This duty cycle command is modulated in accordance with the harmonic content evident on a DC bus (34) which supplies power to the PWM inverter (38).
摘要翻译： 使用用于PWM逆变器（38）的控制器（30）来最小化在电力系统（10）中减少AC总线电压谐波含量的问题。 控制器（30）在用于控制PWM逆变器（38）的操作的线路（40）上产生占空比指令。 控制器（30）产生占空比指令，以将PWM逆变器输出电压维持在期望的水平。 该占空比指令根据向PWM逆变器（38）供电的DC总线（34）上明显的谐波含量进行调制。
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公开(公告)号：US4841202A
公开(公告)日：1989-06-20
申请号：US138344
申请日：1987-12-28
IPC分类号： H02P9/06
CPC分类号： H02P9/06
摘要： An electrically compensated constant speed drive which is speed limited so that power flow through the speed compensation link is unidirectional includes a permanent magnet generator which is interconnected with a permanent magnet motor by a power converter. The permanent magnet generator and the permanent magnet motor are controlled by first and second independent control loops. The power converter includes an AC/DC converter coupled to electrical power windings of the permanent magnet generator, a filter coupled to the output of the AC/DC converter and an inverter coupled between the filter and electrical power windings of the permanent magnet motor. The permanent magnet generator, AC/DC converter, filter and the first control loop together develop a voltage on a DC bus. The voltage on the DC bus, which is coupled to the inverter, is sufficient to operate the permanent magnet motor with the required speed and torque, and thus the second control loop need not implement a voltage control scheme, such as a PMW control.
摘要翻译： 一种电动补偿恒速驱动器，其速度受限制使得通过速度补偿连杆的动力流是单向的包括通过功率转换器与永磁电动机互连的永磁发电机。 永磁发电机和永磁电动机由第一和第二独立控制回路控制。 功率转换器包括耦合到永磁发电机的电功率绕组的AC / DC转换器，耦合到AC / DC转换器的输出的滤波器和耦合在永磁电动机的滤波器和电功率绕组之间的逆变器。 永磁发电机，AC / DC转换器，滤波器和第一个控制环路一起在直流母线上产生电压。 耦合到逆变器的DC总线上的电压足以以所需的速度和转矩操作永磁电动机，因此第二控制回路不需要实现诸如PMW控制的电压控制方案。
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公开(公告)号：US20130271878A1
公开(公告)日：2013-10-17
申请号：US13447266
申请日：2012-04-15
IPC分类号： H02H7/06
摘要： A method and system for responding to a fast trip protective element trip in a generator system that re-excites the generator when a fast trip protection element trips and determines whether the generator immediately retrips the fast trip protection element, thereby determining whether a fault is located in the generator or in an attached load. If it is determined that the fault is located in the load, the system re-excites and reconnects the load after disabling the fast trip protection element for a specified period to allow for the load to clear its fault.
摘要翻译： 一种用于响应发电机系统中的快速跳闸保护元件跳闸的方法和系统，当快速跳闸保护元件跳闸并确定发电机是否立即重新触发快速跳闸保护元件时，从而确定故障是否位于 在发电机或负载连接。 如果确定故障位于负载中，则在禁用快速跳闸保护元件一段指定时间后，系统会重新激活并重新连接负载，以允许负载清除故障。
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公开(公告)号：US08305049B2
公开(公告)日：2012-11-06
申请号：US12418940
申请日：2009-04-06
IPC分类号： H02K11/00
CPC分类号： H02P9/102 , H02P2101/30
摘要： An electric power generation system has a synchronous machine, a starter excitation source and an exciter field driver. The starter excitation source is connected to the synchronous machine via multiple phase connections, and the exciter field driver is connected to the synchronous machine via a portion of the same phase connections. At least one of the phase connections is connected to each other phase connection via a transient voltage suppressor.
摘要翻译： 发电系统具有同步电机，起动器励磁源和励磁机励磁驱动器。 启动器励磁源通过多相连接连接到同步电机，励磁机励磁驱动器通过相同相位连接的一部分连接到同步电机。 至少一个相位连接通过瞬态电压抑制器连接到彼此的相位连接。
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8.发明授权Engine having power bus fault short circuit control with a disconnection switch 有权发动机具有断路开关的电源总线故障短路控制公开(公告)号：US08213136B2
公开(公告)日：2012-07-03
申请号：US11839763
申请日：2007-08-16
CPC分类号： H02J4/00
摘要： An aircraft electrical system comprises a generator to be driven as part of a gas turbine engine. The generator supplies electrical power to a plurality of accessories associated with the gas turbine engine, and to an aircraft power bus in parallel to the supply to the accessories. A control detects a short circuit on the aircraft power bus. When a short circuit is detected on the aircraft power bus, a switch is driven open to disconnect the aircraft power bus from the generator. In this manner, the power will continue to be delivered to the plurality of accessories. In a separate feature, a control voltage is provided by an auxiliary permanent magnet generator to a voltage regulator for the main generator.
摘要翻译： 飞机电气系统包括作为燃气涡轮发动机的一部分驱动的发电机。 发电机将电力供应到与燃气涡轮发动机相关联的多个附件，并且与提供给附件的飞机电源总线并联。 控制器检测飞机电源总线上的短路。 当在飞机电源总线上检测到短路时，开关被驱动打开以将飞机电源总线与发电机断开。 以这种方式，电力将继续被传送到多个附件。 在单独的特征中，辅助永久磁铁发电机提供控制电压到主发电机的电压调节器。
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公开(公告)号：US08072191B2
公开(公告)日：2011-12-06
申请号：US11968256
申请日：2008-01-02
IPC分类号： H02P9/10
CPC分类号： H02P9/302 , H02P9/006 , H02P9/10 , H02P2101/30
摘要： An electric generator with a rotating diode fault detection device built in that operates by comparing a voltage buildup across the exciter DC supply with a preset threshold value and determining if a fault condition is present based on the comparison.
摘要翻译： 具有内置旋转二极管故障检测装置的发电机，其通过将励磁机DC电源上的电压累积与预设阈值进行比较并基于该比较来确定是否存在故障状况来进行操作。
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公开(公告)号：US08056417B2
公开(公告)日：2011-11-15
申请号：US12352050
申请日：2009-01-12
申请人： Albert L Markunas , Vijay K Maddali
发明人： Albert L Markunas , Vijay K Maddali
IPC分类号： G01D9/00
摘要： A method of detecting and monitoring torsional oscillation in a mechanical coupling between a prime mover and a multiphase alternating current (AC) electrical generator, comprises the steps of: detecting in at least one received signal variations that are indicative of changes in the rotational speed of the electrical generator; extracting information from the detected variations that are indicative of torsional oscillation to produce a torsional oscillation signal that has information relating to at least the amplitude of the torsional oscillation; and monitoring the torsional oscillation signal to determine the presence and severity of the torsional oscillation in the mechanical coupling.
摘要翻译： 一种在原动机和多相交流（AC）发电机之间的机械耦合中检测和监测扭转振荡的方法包括以下步骤：在至少一个接收的信号变化中检测指示转速的变化 发电机; 从指示扭转振荡的检测到的变化中提取信息以产生具有与至少扭转振荡的振幅有关的信息的扭转振荡信号; 并监测扭转振荡信号以确定机械耦合中扭转振荡的存在和严重性。
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