-
公开(公告)号：US4487109A
公开(公告)日：1984-12-11
申请号：US363701
申请日：1982-03-30
CPC分类号： F04B1/324 , F04B2201/12051 , Y10S60/911
摘要： The invention relates to an electro-hydraulic control system for a power drive unit having a wobbler controlled variable displacement hydraulic motor wherein the electro-hydraulic control system causes the displacement of the hydraulic motor to match a load to be driven by a power drive unit output shaft coupled to the motor. The system results in the hydraulic motor displacement matching the load as a combined function of the input command signal, the actual wobbler position, as well as the velocity and position of the power drive unit output shaft.
摘要翻译： 本发明涉及一种具有摇摆控制的可变排量液压马达的动力驱动单元的电动液压控制系统，其中电液控制系统使得液压马达的位移与由驱动单元输出驱动的负载相匹配 轴连接到电机。 该系统导致液压马达与负载匹配的位移作为输入指令信号，实际摆臂位置以及动力单元输出轴的速度和位置的组合函数。
-
2.发明申请公开(公告)号：US20130193888A1
公开(公告)日：2013-08-01
申请号：US13361520
申请日：2012-01-30
申请人： Albert L. Markunas
发明人： Albert L. Markunas
IPC分类号： H02P6/18
摘要： A rotor position determination and tracking system for a dynamo electric machine includes a first AC power supply to inject a carrier wave into a main stator of the dynamoelectric machine and a second AC power supply to inject an excitation voltage or current into an exciter stator of the dynamo electric machine. A plurality of current sensors and voltage sensors located at the exciter input lines sense current and voltage thereat. A first control logic receives the sensed current and voltage and outputs an estimated rotor position. A second control logic receives an estimated exciter field voltage or current rotating wave form angle and filtered sensed current or voltage signals from the first control logic and utilizes a known main stator carrier frequency to determine the rotor position. The rotor position is input into the first control logic to calibrate the first control logic for tracking of the true rotor position.
摘要翻译： 一种用于发电机的转子位置确定和跟踪系统包括将载波注入到电动机的主定子中的第一AC电源和将激励电压或电流注入到电动机的励磁机定子中的第二AC电源 发电机。 位于激励器输入线路上的多个电流传感器和电压传感器感测电流和电压。 第一控制逻辑接收感测的电流和电压并输出估计的转子位置。 第二控制逻辑从第一控制逻辑接收估计的激励器场电压或当前旋转波形角和滤波的感测电流或电压信号，并利用已知的主定子载波频率来确定转子位置。 转子位置被输入到第一控制逻辑中以校准用于跟踪真实转子位置的第一控制逻辑。
-
3.发明授权Position and velocity sensorless control for a motor generator system operated as a motor using exciter impedance 失效使用励磁机阻抗作为电机运行的电机发电机系统的位置和速度无传感器控制
公开(公告)号：US5747971A
公开(公告)日：1998-05-05
申请号：US694081
申请日：1996-08-08
CPC分类号： H02P9/02 , H02P9/08 , H02P9/302 , H02P2101/30
摘要： A motor generator system (120) in accordance with the invention includes a prime mover (21) for driving an output shaft (18), a main motor generator (105), having a rotor driven by the output shaft, for producing electrical power on at least one output winding (36a-36c) in response to the prime mover rotating the output shaft and for driving the output shaft in response to operation as a motor; an exciter (102) for applying excitation to a field winding (34) of the main motor generator during operation for producing electrical power on the at least one output winding and for applying current to the field winding of the main motor and generator to produce a magnetic field in the field winding during operation of the main motor generator as a motor; circuitry (122), responsive to current in a field winding (204) of the exciter, for producing an output signal representing a position of the rotor of the main motor generator driven by the output shaft; and a main inverter (114), responsive to the output signal, for commutating application of electrical current to the at least one output winding to control operation of the main motor generator during operation as a motor.
摘要翻译： 根据本发明的电动发电机系统（120）包括用于驱动输出轴（18）的原动机（21），具有由输出轴驱动的转子的主电动发电机（105），用于产生电力 至少一个输出绕组（36a-36c）响应于原动机旋转输出轴并响应于作为电动机的操作来驱动输出轴; 用于在所述至少一个输出绕组产生电力的操作期间向所述主电动发电机的励磁绕组（34）施加励磁并且将电流施加到所述主电动机和发电机的励磁绕组的励磁器（102），以产生 在作为电动机的主电动发电机运行期间的励磁绕组中的磁场; 电路（122）响应于励磁机的励磁绕组（204）中的电流，用于产生表示由输出轴驱动的主电动发电机的转子位置的输出信号; 以及响应于所述输出信号的主逆变器（114），用于将电流整流到所述至少一个输出绕组，以在作为电动机的操作期间控制所述主电动发电机的操作。
-
公开(公告)号：US5461293A
公开(公告)日：1995-10-24
申请号：US60878
申请日：1993-05-12
CPC分类号： F02N11/04 , H02K11/048 , H02K29/06 , H02P6/18 , H02P6/20 , H02P9/02 , H02P2101/30 , H02P6/08
摘要： A detector for detecting rotor position of a brushless generator includes a shaft pulse encoder which develops a cycle pulse once per revolution of a motive power shaft and a circuit coupled to armature phase windings of a permanent magnet generator of the brushless generator for deriving a number of interval pulses per revolution of the motive power shaft. A circuit measures time periods between adjacent interval pulses and the measured time periods are converted into an indication of the angular position of the motive power shaft.
摘要翻译： 用于检测无刷发电机的转子位置的检测器包括轴脉冲编码器，该轴脉冲编码器产生一动力轴每转一次的循环脉冲，以及耦合到无刷发电机的永磁发电机的电枢相绕组的电路，用于导出多个 动力轴每转间隔脉冲。 电路测量相邻间隔脉冲之间的时间周期，并将测量的时间段转换成动力轴的角位置的指示。
-
公开(公告)号：US5444349A
公开(公告)日：1995-08-22
申请号：US60960
申请日：1993-05-12
CPC分类号： F02N11/04 , H02P9/08 , H02P2101/30
摘要： A control for operating an electromagnetic machine in a starting mode of operation detects a magnitude of a parameter of power applied to an armature winding of the electromagnetic machine relative to a stationary frame of reference and converts the detected parameter magnitude into field and torque producing components relative to a rotating frame of reference. A power source coupled to the armature winding is controlled during operation in the starting mode such that a rotor of the machine is accelerated.
摘要翻译： 用于在起动操作模式下操作电磁机器的控制器检测施加到电磁机器的电枢绕组相对于固定参考基准的功率参数的大小，并将检测到的参数幅值转换为相位和转矩产生分量 到旋转参考系。 耦合到电枢绕组的电源在起动模式下操作期间被控制，使得机器的转子被加速。
-
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。
-
7.发明授权Sensorless rotor position determination for a wound field synchronous machine 有权用于绕线现场同步电机的无传感器转子位置确定公开(公告)号：US09374027B2
公开(公告)日：2016-06-21
申请号：US13361520
申请日：2012-01-30
申请人： Albert L. Markunas
发明人： Albert L. Markunas
摘要： A rotor position determination and tracking system for a dynamo electric machine includes a first AC power supply to inject a carrier wave into a main stator of the dynamoelectric machine and a second AC power supply to inject an excitation voltage or current into an exciter stator of the dynamoelectric machine. A plurality of current sensors and voltage sensors located at the exciter input lines sense current and voltage thereat. A first control logic receives the sensed current and voltage and outputs an estimated rotor position. A second control logic receives an estimated exciter field voltage or current rotating wave form angle and filtered sensed current or voltage signals from the first control logic and utilizes a known main stator carrier frequency to determine the rotor position. The rotor position is input into the first control logic to calibrate the first control logic for tracking of the true rotor position.
摘要翻译： 一种用于发电机的转子位置确定和跟踪系统包括将载波注入到电动机的主定子中的第一AC电源和将激励电压或电流注入到电动机的励磁机定子中的第二AC电源 电动机。 位于激励器输入线路上的多个电流传感器和电压传感器感测电流和电压。 第一控制逻辑接收感测的电流和电压并输出估计的转子位置。 第二控制逻辑从第一控制逻辑接收估计的激励器场电压或当前旋转波形角和滤波的感测电流或电压信号，并利用已知的主定子载波频率来确定转子位置。 转子位置被输入到第一控制逻辑中以校准用于跟踪真实转子位置的第一控制逻辑。
-
公开(公告)号：US07884581B2
公开(公告)日：2011-02-08
申请号：US12875760
申请日：2010-09-03
CPC分类号： H02P9/10 , H02P2101/30
摘要： A generator control unit (GCU) provides active damping of a synchronous generator by monitoring the speed of the synchronous generator and detecting oscillations in the monitored speed. The oscillations are indicative of torsional oscillations within the mechanical drivetrain including the synchronous generator or generators. In response to detected oscillations in the monitored speed, the GCU generates a varying set-point value that is used to control the excitation voltage provided to the synchronous generator. Varying the excitation voltage provided to the synchronous generator causes a variation in synchronous generator torque. By selectively varying the torque in the synchronous generator, the GCU provides active damping in the synchronous generator that decreases or dampens the torsional oscillations.
摘要翻译： 发电机控制单元（GCU）通过监视同步发电机的速度并以监视的速度检测振荡，提供同步发电机的主动阻尼。 振荡表示包括同步发电机或发电机在内的机械传动系统内的扭转振荡。 响应于检测到的监视速度的振荡，GCU产生用于控制提供给同步发电机的激励电压的变化的设定值。 改变提供给同步发电机的励磁电压会导致同步发电机转矩的变化。 通过选择性地改变同步发电机中的转矩，GCU在同步发电机中提供主动阻尼，减少或抑制扭转振荡。
-
9.发明申请Rotor position detection at standstill and low speeds using a low power permanent magnet machine 有权使用低功率永磁机在静止和低速下进行转子位置检测公开(公告)号：US20080315822A1
公开(公告)日：2008-12-25
申请号：US11820640
申请日：2007-06-20
CPC分类号： H02P6/18 , H02P25/024
摘要： For a multiphase alternating current (AC) wound field synchronous machine (WFSM) that has a stator with a selected number of poles, the WFSM having an associated exciter and multiphase AC permanent magnet machine (PMM) directly coupled to the WFSM, a method of sensing the position of a rotor in the WFSM comprises the steps of: configuring a stator for the PMM to have a number of poles that is a sub-multiple of the selected number of WFSM stator poles; configuring a rotor for the PMM to have high saliency; applying multiphase AC power of a selected frequency to the PMM stator: detecting at least one set of stator harmonic currents of the multiphase AC power resulting from the rotor saliency; converting the detected PMM harmonic stator currents from their multiphase coordinates to αβ coordinates; rotating the converted PMM stator currents into a reference frame for at least one selected harmonic to generate αβ coordinate harmonic current vectors; and estimating the position of the WFSM rotor based on the values of the αβ coordinate harmonic current vectors in the selected harmonic reference frame.
摘要翻译： 对于具有选定数量极数的定子的多相交流（AC）绕线场同步电机（WFSM），具有与WFSM直接耦合的相关联的激励器和多相交流永磁机（PMM）的WFSM， 感测WFSM中转子的位置包括以下步骤：将PMM的定子配置为具有选定数量的WFSM定子极子的倍数的极数; 为PMM配置转子具有高显着性; 将所选频率的多相交流电力施加到所述PMM定子：检测由所述转子显着性产生的所述多相AC电力的至少一组定子谐波电流; 将检测到的PMM谐波定子电流从其多相位坐标转换为字母坐标; 将转换的PMM定子电流旋转到用于至少一个所选谐波的参考系以产生字母表坐标谐波电流矢量; 以及基于所选择的谐波参考帧中的字母表坐标谐波电流矢量的值来估计WFSM转子的位置。
-
公开(公告)号：US07072790B2
公开(公告)日：2006-07-04
申请号：US10917018
申请日：2004-08-12
申请人： Jun Hu , Charles Romenesko , Albert L. Markunas
发明人： Jun Hu , Charles Romenesko , Albert L. Markunas
IPC分类号： H02K24/00
CPC分类号： H02P21/06
摘要： A shaft sensorless rotor angular position and velocity sensing system for a ynamoelectric machine that includes: a reference frame transformation function for transforming measured currents and potentials applied to a stator of the dynamoelectric machine to a two-phase α-β stationary frame to produce transformed currents Iα,Iβ and transformed potentials Vα,Vβ; first and second multipliers to produce signals Iα*RS,Iβ*RS; first and second summers to produce signals Vα,−Iα*RS,Vβ−Iβ*RS; first and second lag functions to produce signals 1 s + ω i ( V α - I α * R s ) , 1 s + ω i ( V β - I β * R s ) ; third and fourth multipliers to produce signals Iα*Lq,Iβ*Lq; third and fourth summers to produce signals 1 s + ω i ( V α - I α * R s ) - I α * L q , 1 s + ω i ( V β - I β * R s ) - I β * L q that correspond to extended rotor flux values λext—α,λext—β; and a phase lock loop (PLL) to derive estimated rotor angular position and velocity values {circumflex over (θ)}, {circumflex over (ω)} for the dynamoelectric machine from the extended rotor flux values λext—α,λext—β.
-
-
-
-
-
-
-
-
-
搜索结果
47 条记录 (耗时 0.018 秒)
