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公开(公告)号：US20240291410A1
公开(公告)日：2024-08-29
申请号：US18589010
申请日：2024-02-27
CPC分类号： H02P21/30 , H02P21/18 , H02P27/06 , H02P2207/05
摘要： An electric machine is provided. A polyphase machine comprising at least one of an induction machine and an externally excited synchronous machine is provided. A power inverter is electrically connected to the polyphase machine. An inverter controller is electrically connected to the power inverter, wherein the inverter controller is configured to provide a torque command, wherein the torque command provides a torque signal to provide a plurality of pulses that pulse between a first demand torque level and a second demand torque level, wherein the second demand torque level is lower in amplitude than an amplitude of the first demand torque level and control an id provided by the power inverter, so that when the torque signal is at the first demand torque level, rotor flux strictly increases and when the torque signal is at the second demand torque level, rotor flux strictly decreases.
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公开(公告)号：US20230299698A1
公开(公告)日：2023-09-21
申请号：US18051893
申请日：2022-11-02
CPC分类号： H02P21/0017 , H02P21/30 , H02P21/141 , H02P27/06 , H02K11/33 , H02P21/20 , H02P2207/01
摘要： Reduced computation time for model predictive control (MPC) of a five level dual T-type drive considering the DC link capacitor balancing, the common-mode voltage (CMV) along with torque control of an open-ends induction motor based on determining a reduced set of switching states for the MPC. The reduced set of switching states are determined by considering either CMV reduction (CMVR) or CMV elimination (CMVE). Cost function minimization generates a voltage vector, which is used to produce gating signals for the converter switches. The reduced switching state MPC significantly reduces computation time and improves MPC performance.
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公开(公告)号：US09831812B2
公开(公告)日：2017-11-28
申请号：US15055289
申请日：2016-02-26
申请人： NUtech Ventures
CPC分类号： H02P21/30 , H02P21/141 , H02P21/20
摘要： This disclosure features an apparatus including a motor controller to generate control signals to control an electric motor. The motor controller includes a first saturation controller to generate a first saturation controller output based on feedback signals associated with the electric motor. The motor controller further includes a duty ratio modulator coupled to the first saturation controller. The duty ratio modulator is configured to determine activation times for a set of voltage vectors based on the first saturation controller output. The motor controller is configured to generate, at each switching cycle, a control signal based on the set of voltage vectors and the activation times for the set of voltage vectors, and provide the control signal for controlling the electric motor.
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4.发明授权公开(公告)号：US09431951B2
公开(公告)日：2016-08-30
申请号：US14333123
申请日：2014-07-16
申请人： Atieva, Inc.
发明人： Yifan Tang
CPC分类号： H02P27/06 , H02P21/22 , H02P21/30 , H02P29/027
摘要： An AC motor controller is provided that utilizes a direct torque controller and primary and secondary control loops. The primary control loop operates in a relatively conventional manner, determining a voltage vector that sets the inverter switching variables for the motor's power inverter, where the voltage vector is based on the motor's torque and flux as estimated from the measured voltage and current of the motor. Application of the voltage vector determined by the primary loop is delayed until initiation of the next primary control loop cycle. The secondary loop, utilizing a faster sampling rate than that of the primary loop, compares the measured phase current to a preset current limit. If the secondary loop determines that the measured phase current has exceeded the preset current limit, it sets a null voltage vector, thereby limiting transient over currents.
摘要翻译： 提供一个交流电动机控制器，其利用直接转矩控制器和一次和二次控制回路。 主控制回路以相对常规的方式操作，确定设置电动机功率逆变器的逆变器切换变量的电压矢量，其中电压矢量基于从电动机的测量电压和电流估计的电动机的转矩和通量 。 施加由初级环路确定的电压矢量被延迟直到下一个主要控制回路循环的启动。 使用比主回路更快的采样率的次级回路将测量的相电流与预设电流限制进行比较。 如果二次回路确定测得的相电流已经超过预设电流限制，则设置零电压矢量，从而限制瞬态过电流。
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5.发明申请公开(公告)号：US20160020719A1
公开(公告)日：2016-01-21
申请号：US14333123
申请日：2014-07-16
申请人： Atieva, Inc.
发明人： Yifan Tang
CPC分类号： H02P27/06 , H02P21/22 , H02P21/30 , H02P29/027
摘要： An AC motor controller is provided that utilizes a direct torque controller and primary and secondary control loops. The primary control loop operates in a relatively conventional manner, determining a voltage vector that sets the inverter switching variables for the motor's power inverter, where the voltage vector is based on the motor's torque and flux as estimated from the measured voltage and current of the motor. Application of the voltage vector determined by the primary loop is delayed until initiation of the next primary control loop cycle. The secondary loop, utilizing a faster sampling rate than that of the primary loop, compares the measured phase current to a preset current limit. If the secondary loop determines that the measured phase current has exceeded the preset current limit, it sets a null voltage vector, thereby limiting transient over currents.
摘要翻译： 提供一个交流电动机控制器，其利用直接转矩控制器和一次和二次控制回路。 主控制回路以相对常规的方式操作，确定设置电动机功率逆变器的逆变器切换变量的电压矢量，其中电压矢量基于从电动机的测量电压和电流估计的电动机的转矩和通量 。 施加由初级环路确定的电压矢量被延迟直到下一个主要控制回路循环的启动。 使用比主回路更快的采样率的次级回路将测量的相电流与预设电流限制进行比较。 如果二次回路确定测得的相电流已经超过预设电流限制，则设置零电压矢量，从而限制瞬态过电流。
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公开(公告)号：US20160020708A1
公开(公告)日：2016-01-21
申请号：US14772479
申请日：2014-03-04
IPC分类号： H02M7/539
CPC分类号： H02M7/539 , G01R19/0092 , G01R31/42 , H02M7/53875 , H02M2001/0009 , H02M2007/53876 , H02P21/12 , H02P21/30 , H02P27/12
摘要： A difference command generator generates a difference command equivalent to a time integral of three-phase voltage applied to an inductive load in a predetermined cycle in a complex plane. A vector command generator generates vector commands that are respectively time integrals of voltage vectors and compose the difference command. A switching signal generator generates switching signals for controlling three pairs of switches in an inverter on the basis of the vector commands. A phase-current computing unit obtains an estimated value for the three-phase current on the basis of a current flowing DC buses and the vector commands. At least two of the vector commands that are time integrals of different ones of the non-zero voltage vectors have magnitudes greater than or equal to a predetermined value corresponding to a minimum required amount of time to maintain switching patterns in order for the phase-current computing unit to detect the current.
摘要翻译： 差分指令发生器产生等效于在复平面中以预定周期施加到感性负载的三相电压的时间积分的差分指令。 矢量指令发生器产生矢量命令，分别是电压矢量的时间积分，并组成差分指令。 开关信号发生器基于矢量指令产生用于控制逆变器中的三对开关的开关信号。 相电流计算单元基于电流流动的DC总线和矢量命令获得三相电流的估计值。 作为非零电压矢量中的不同电压矢量的时间积分的向量指令中的至少两个具有大于或等于对应于最小所需时间量的预定值的大小，以维持开关模式以使相电流 计算单元检测电流。
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7.发明授权公开(公告)号：US09065362B2
公开(公告)日：2015-06-23
申请号：US13923862
申请日：2013-06-21
发明人： Chiang-jiang Wang , Michael Degner
摘要： Methods of providing a control band for a hysteresis controller are presented. A method can determine a control band analytically to avoid the time and costs associated with manual calibration of a hysteresis controller. By way of example, a method can include modeling a machine output, such as stator flux or machine torque, modeling the variation rate for the machine output, and providing a control band based on the variation rate modeling.
摘要翻译： 提出了一种为迟滞控制器提供控制带的方法。 一种方法可以分析确定控制带，以避免与滞后控制器的手动校准相关的时间和成本。 作为示例，方法可以包括对机器输出进行建模，例如定子通量或机器扭矩，对机器输出的变化率进行建模，以及基于变化率建模提供控制带。
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公开(公告)号：US20140126252A1
公开(公告)日：2014-05-08
申请号：US14155943
申请日：2014-01-15
申请人： ABB RESEARCH LTD
IPC分类号： H02M1/12
CPC分类号： H02M1/12 , G05B19/0421 , H02M7/487 , H02M7/5395 , H02M2007/53876 , H02P21/30 , H02P23/30 , H02P27/06
摘要： In a method based on the MPDTC algorithm for controlling an inverter of an electrical system, the harmonics and resonances in the inverter can be damped by extracting frequency information from predicted data of the MPDTC algorithm and by damping harmonic distortion of the electrical system by reintroducing the extracted frequency information into a control loop of the inverter.
摘要翻译： 在基于用于控制电气系统的逆变器的MPDTC算法的方法中，可以通过从MPDTC算法的预测数据中提取频率信息和通过重新引入电气系统来阻尼谐波失真来减弱逆变器中的谐波和谐振 将频率信息提取到逆变器的控制回路中。
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9.发明授权Open-loop and/or closed-loop control system of a 3-phase power converter for the operation of an asynchronous machine 有权用于异步机操作的三相电力转换器的开环和/或闭环控制系统公开(公告)号：US08129936B2
公开(公告)日：2012-03-06
申请号：US12447947
申请日：2007-10-19
申请人： Robert Becker , Peter Krafka , Michael Rampe
发明人： Robert Becker , Peter Krafka , Michael Rampe
IPC分类号： H02P27/08
摘要： An open-loop and/or closed-loop control device for operating an asynchronous machine which is fed by a 3-phase power converter. The open-loop and/or closed-loop control structure has a stator flux controller and a pulse pattern generator for generating pulse signals based on mean values. An output of the stator flux controller is connected to an input of the pulse pattern generator, with the result that the pulse pattern generator can generate the pulse signals as a function of a manipulated variable which is generated by the stator flux controller. The stator flux controller is configured so as to generate the manipulated variable as a function of a desired value of the stator flux of the asynchronous machine and as a function of a desired value of the torque of the asynchronous machine. The stator flux controller has a dead-beat control response.
摘要翻译： 一种用于操作由三相电源转换器馈电的异步电机的开环和/或闭环控制装置。 开环和/或闭环控制结构具有定子通量控制器和用于基于平均值产生脉冲信号的脉冲模式发生器。 定子通量控制器的输出端连接到脉冲图形发生器的输入端，结果脉冲图形发生器可以产生作为由定子通量控制器产生的操作变量的函数的脉冲信号。 定子磁通控制器被配置为根据异步电机的定子通量的期望值产生操作变量，并且作为异步电机的转矩的期望值的函数。 定子通量控制器具有死点控制响应。
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公开(公告)号：US08004227B2
公开(公告)日：2011-08-23
申请号：US12207670
申请日：2008-09-10
申请人： Jonas Kley , Georgios Papafotiou
发明人： Jonas Kley , Georgios Papafotiou
IPC分类号： G05B21/02
摘要： A method is specified for operating a rotating electrical machine, in which the rotating electrical machine is connected in terms of phase to a converter circuit, having a DC voltage circuit, for connecting at least two voltage levels, and the phases of the converter circuit are connected to the DC voltage circuit in accordance with a selected switching state combination of switching states for power semiconductor switches in the converter circuit. In order for operation of the rotating electrical machine to be possible in an event, over a number L of sampling times various values are determined, and a switching state combination is set as the selected switching state combination with which a sum of determined values is at its smallest.
摘要翻译： 一种用于操作旋转电机的方法，其中旋转电机以相位方式连接到具有DC电压电路的转换器电路，用于连接至少两个电压电平，并且转换器电路的相位为 根据所述转换器电路中功率半导体开关的切换状态的选择开关状态组合，连接到所述直流电压电路。 为了在一个事件中可以进行旋转电机的操作，在多个L个采样时间中确定各种值，并且将开关状态组合设置为所选择的开关状态组合，其中确定值的和为 最小的
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