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1. 发明申请

US20090045293A1 GENERATOR FOR GAS TURBINE ENGINE HAVING DC BUS FAULT SHORT CIRCUIT CONTROL USING A BATTERY 有权
标题翻译：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
申请人： Gregory I. Rozman , Kevin Dooley , Vijay K. Maddali
发明人： Gregory I. Rozman , Kevin Dooley , Vijay K. Maddali
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。

2. 发明授权

US5016157A VSCF system with DC link harmonics control 失效
标题翻译： VSCF系统具有直流链路谐波控制
公开(公告)号：US5016157A
公开(公告)日：1991-05-14
申请号：US428759
申请日：1989-10-30
申请人： Gregory I. Rozman , Vijay K. Maddali
发明人： Gregory I. Rozman , Vijay K. Maddali
IPC分类号： H02M1/12 , H02M5/452
CPC分类号： H02M1/12 , H02M5/452
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。

3. 发明授权

US07786708B2 Starter/generator system with control to address a voltage rise 有权
标题翻译：起动器/发电机系统具有控制以解决电压上升
公开(公告)号：US07786708B2
公开(公告)日：2010-08-31
申请号：US11867907
申请日：2007-10-05
申请人： Gregory I. Rozman , Vijay K. Maddali , Kevin Dooley
发明人： Gregory I. Rozman , Vijay K. Maddali , Kevin Dooley
IPC分类号： F02N11/04 , H02P9/04
CPC分类号： H02P9/307 , F02D41/22 , F02D2041/2051 , F02D2041/2072 , F02N11/04 , F02N11/10 , H02P9/10 , H02P29/0241 , H02P2101/30 , Y02T10/40
摘要： A control circuit for a generator has a control function that monitors the voltage across a bus capacitor. The circuit delivers excess voltage back to associated stator windings if an unduly high voltage is detected across the bus capacitor.
摘要翻译：用于发电机的控制电路具有监视总线电容器两端的电压的控制功能。如果在总线电容器两端检测到过高的电压，该电路会将过多的电压返回给相关的定子绕组。

4. 发明申请

US20090261586A1 Dual Channel Power Generation System 有权
标题翻译：双通道发电系统
公开(公告)号：US20090261586A1
公开(公告)日：2009-10-22
申请号：US12106304
申请日：2008-04-20
申请人： Vijay K. Maddali , Gregory I. Rozman , Matthew L. Wilhide
发明人： Vijay K. Maddali , Gregory I. Rozman , Matthew L. Wilhide
IPC分类号： H02P9/02
CPC分类号： H02P9/305 , H02P9/48 , H02P25/22 , H02P2101/30
摘要： A dual channel power generation system comprises: a prime mover; a permanent magnet (PM) dynamoelectric machine that has a PM rotor coupled to the prime mover, two multiphase alternating current (AC) stators that develop electromotive force (EMF) in response to rotation of the PM rotor due to the magnetic flux linkage between the PM rotor and the stators, two control coils that each change the magnetic flux linkage of a respective stator in response to the level of a control current that passes through the control coil; a multiphase AC rectifier for each stator that receives AC power from its respective stator to supply DC power on a respective rectifier bus; a current feedback loop for each rectifier bus; a voltage feedback loop for each rectifier bus; a load-sharing controller responsive to both current feedback loops to develop a voltage regulator reference signal for each rectifier bus that is representative of the value of voltage that its corresponding stator should produce to maintain equal values of current for both rectifier buses; and a voltage regulator for each rectifier bus responsive to its respective voltage feedback loop and voltage regulator reference signal to produce the control current for its respective control coil that changes the magnetic flux linkage of its respective stator to maintain the value of voltage that its corresponding stator should produce to maintain equal values of current for both rectifier buses.
摘要翻译：双通道发电系统包括：原动机; 具有耦合到原动机的PM转子的永磁（PM）电动机，两个多相交流（AC）定子，其响应于PM转子的旋转而产生电动势（EMF），这是由于 PM转子和定子，两个控制线圈，每个控制线圈响应于通过控制线圈的控制电流的电平而改变相应定子的磁通量; 用于每个定子的多相AC整流器，其从其相应的定子接收AC电力，以在相应的整流器总线上提供DC电力; 每个整流器总线的电流反馈回路; 每个整流器总线的电压反馈回路; 负载分担控制器响应于两个电流反馈回路，以针对每个整流器总线开发代表其相应的定子应产生的电压值以维持两个整流器母线的相等电流值的电压调节器参考信号; 以及每个整流器总线的电压调节器，其响应于其各自的电压反馈回路和电压调节器参考信号，以产生用于其相应控制线圈的控制电流，其改变其相应定子的磁通量，以保持其相应定子应该产生两个整流母线的电流值相等的值。

5. 发明授权

US5430362A Engine starting system utilizing multiple controlled acceleration rates 失效
标题翻译：引擎起动系统采用多个受控加速度
公开(公告)号：US5430362A
公开(公告)日：1995-07-04
申请号：US63166
申请日：1993-05-12
申请人： Kenneth R. Carr , Gregory I. Rozman , Albert L. Markunas , Michael J. Hanson , Leland E. Weber , James A. Shippling , Malcolm J. McArthur , Vijay K. Maddali , Paul E. Nuechterlein , Alexander Cook , Vietson Nguyen , Mario R. Rinaldi
发明人： Kenneth R. Carr , Gregory I. Rozman , Albert L. Markunas , Michael J. Hanson , Leland E. Weber , James A. Shippling , Malcolm J. McArthur , Vijay K. Maddali , Paul E. Nuechterlein , Alexander Cook , Vietson Nguyen , Mario R. Rinaldi
IPC分类号： F01D15/10 , F02C7/268 , F02N11/04 , H02P9/08 , H02P1/46
CPC分类号： F02N11/04 , H02P9/302 , F05B2220/50
摘要： A control for operating an electromagnetic machine in a starting mode of operation wherein the main armature winding of the machine receives electrical power from a controllable power source during the starting mode of operation, comprises a circuit for detecting a magnitude of a parameter of power applied to the main armature winding relative to a stationary frame of reference, a position sensor for detecting rotor position of the electromagnetic machine, a converter responsive to angular position indication for converting the detected parameter magnitude into field and torque producing components relative to a rotating frame of reference, and a circuit responsive to the field and torque producing components for controlling the power source during operation in the starting mode. This control includes an igniter for igniting a prime mover. Further, the control is operable during a first phase prior to ignition of the prime mover for causing the electromagnetic machine to provide motive power to the prime mover so as to accelerate the prime mover at a first predetermined rate, is operable during a second phase subsequent to the first phase so as to accelerate the prime mover at a second predetermined rate, is operable during this second phase for providing fuel to the prime mover to facilitate ignition thereof, and is operable during a third phase subsequent to the ignition of the prime mover so as to accelerate the prime mover at a third predetermined rate to a self-sustaining speed.
摘要翻译：一种用于在起动操作模式下操作电磁机器的控制器，其中机器的主电枢绕组在起动操作模式期间从可控电源接收电力，包括用于检测施加到相对于固定参考系的主电枢绕组，用于检测电磁机器的转子位置的位置传感器，响应于角度位置指示的转换器，用于将检测到的参数幅度转换成相位和转矩产生部件相对于旋转参考系以及响应于场和转矩产生组件的电路，用于在起动模式下操作期间控制电源。该控制包括用于点燃原动机的点火器。此外，控制可以在原动机点火之前的第一阶段期间操作，以使得电磁机器向原动机提供动力，以便以第一预定速率加速原动机，在第二阶段期间可操作到第一阶段以便以第二预定速率加速原动机，在该第二阶段期间可操作以向原动机提供燃料以促进其点燃，并且在原动机点火之后的第三阶段期间可操作以便将原动机以第三预定速率加速至自持速度。

6. 发明授权

US4967132A VSCF start system current estimator 失效
标题翻译： VSCF启动系统电流估计器
公开(公告)号：US4967132A
公开(公告)日：1990-10-30
申请号：US279972
申请日：1988-12-05
申请人： Gregory I. Rozman , Vijay K. Maddali
发明人： Gregory I. Rozman , Vijay K. Maddali
IPC分类号： F02N11/04 , H02P1/46
CPC分类号： F02N11/04 , H02P1/46
摘要： The problem of excess size and weight resulting from the use of current sensors in a VSCF start system is solved by a motor control system which utilizes a current estimator to develop a current feedback value. The current estimator is coupled to a rotor position detector and an input power detector to develop a signal representing the estimated current drawn by the motor.
摘要翻译：在VSCF启动系统中使用电流传感器导致的超大尺寸和重量的问题由利用电流估计器来开发电流反馈值的电动机控制系统来解决。电流估计器耦合到转子位置检测器和输入功率检测器以形成表示由电动机所绘制的估计电流的信号。

7. 发明授权

US08213136B2 Engine having power bus fault short circuit control with a disconnection switch 有权
标题翻译：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
申请人： Vijay K. Maddali , Gregory I. Rozman , Kevin Dooley
发明人： Vijay K. Maddali , Gregory I. Rozman , Kevin Dooley
IPC分类号： H02H7/06 , H02H3/08 , B64D41/00
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。

8. 发明授权

US07400117B1 Generating system with a regulated permanent magnet machine and an active rectifier 有权
标题翻译：具有稳压永磁机和有功整流器的发电系统
公开(公告)号：US07400117B1
公开(公告)日：2008-07-15
申请号：US11820784
申请日：2007-06-20
申请人： Gregory I. Rozman , Vijay K. Maddali , Kevin Dooley
发明人： Gregory I. Rozman , Vijay K. Maddali , Kevin Dooley
IPC分类号： H02K29/06
CPC分类号： H02P9/48 , H02P9/10 , H02P9/305 , H02P2207/076
摘要： An electromechanical power transfer system that transfers power between a prime mover and a direct current (DC) electrical system, comprises: a permanent magnet machine (PMM) that has a permanent magnet (PM) rotor coupled to the prime mover, a stator with a multiphase alternating current (AC) winding coupled to an AC bus and a control coil with a winding that has a configuration to generate a magnetic field with flux that varies the reactance of the stator winding with the application of control coil current; a control coil current sensor for generating a control coil current signal that is representative of the level of electrical current in the control coil; an electrical current sensor for generating a DC bus current signal that is representative of the level of DC current through the DC bus; an electrical potential sensor for generating a DC bus potential signal that is representative of the level of DC potential on the DC bus; a fixed pattern active rectifier and inverter system coupled between the AC bus and a DC bus; a position sensing system for generating a rotor position signal that is representative of the angular position of the PM rotor; and a control coil current regulator system that regulates the control coil current.
摘要翻译：一种在原动机和直流（DC）电气系统之间传递动力的机电动力传递系统，包括：永磁体机器（PMM），其具有联接到原动机的永磁体（PM）转子，具有耦合到AC总线的多相交流（AC）绕组和具有绕组的控制线圈，所述绕组具有通过施加控制线圈电流来改变定子绕组的电抗的磁通产生磁场的构造; 控制线圈电流传感器，用于产生代表控制线圈中的电流水平的控制线圈电流信号; 电流传感器，用于产生代表通过DC总线的直流电流的电平的DC总线电流信号; 用于产生代表DC总线上的DC电平的电平的DC总线电位信号的电位传感器; 固定模式有源整流器和耦合在AC总线和DC总线之间的逆变器系统; 用于产生代表PM转子的角位置的转子位置信号的位置感测系统; 以及调节控制线圈电流的控制线圈电流调节器系统。

9. 发明授权

US07638959B2 Method of operating a brushless motor wherein open loop and closed loop controllers utilize different commutation methods 有权
标题翻译：操作无刷电机的方法，其中开环和闭环控制器利用不同的换向方法
公开(公告)号：US07638959B2
公开(公告)日：2009-12-29
申请号：US11956399
申请日：2007-12-14
申请人： Gregory I. Rozman , Matthew L. Wilhide , Vijay K. Maddali
发明人： Gregory I. Rozman , Matthew L. Wilhide , Vijay K. Maddali
IPC分类号： H02P6/08 , H02P6/06 , H02P1/04
CPC分类号： H02P23/14
摘要： A motor control is provided with both open loop and closed loop controllers. The open loop and closed loop controllers provide commutation signals back to gate drives for an inverter, wherein the commutation signals utilize sinusoidal signals in open loop control, and utilize six step commutation in closed loop control.
摘要翻译：电动机控制器配有开环和闭环控制器。开环和闭环控制器提供换向信号回到逆变器的栅极驱动器，其中换向信号利用开环控制中的正弦信号，并且在闭环控制中利用六步换向。

10. 发明申请

US20090153083A1 METHOD OF OPERATING A BRUSHLESS MOTOR WHEREIN OPEN LOOP AND CLOSED LOOP CONTROLLERS UTILIZE DIFFERENT COMMUTATION METHODS 有权
标题翻译：在开环和闭环控制器上运行无刷电机的方法利用不同的通讯方法
公开(公告)号：US20090153083A1
公开(公告)日：2009-06-18
申请号：US11956399
申请日：2007-12-14
申请人： Gregory I. Rozman , Matthew L. Wilhide , Vijay K. Maddali
发明人： Gregory I. Rozman , Matthew L. Wilhide , Vijay K. Maddali
IPC分类号： H02P6/08 , H02P6/06 , H02P1/04
CPC分类号： H02P23/14
摘要： A motor control is provided with both open loop and closed loop controllers. The open loop and closed loop controllers provide commutation signals back to gate drives for an inverter, wherein the commutation signals utilize sinusoidal signals in open loop control, and utilize six step commutation in closed loop control.
摘要翻译：电动机控制器配有开环和闭环控制器。开环和闭环控制器提供换向信号回到逆变器的栅极驱动器，其中换向信号利用开环控制中的正弦信号，并且在闭环控制中利用六步换向。

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