专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11824470B2 Method of determining an initial rotor position for a synchronous motor and a controller therefor 有权
公开(公告)号：US11824470B2
公开(公告)日：2023-11-21
申请号：US17462721
申请日：2021-08-31
申请人： Kinetic Technologies International Holdings LP
发明人： Kwei Chung Li
IPC分类号： H02P21/18 , H02P6/185 , H02P6/20 , H02P21/32
CPC分类号： H02P21/18 , H02P6/185 , H02P6/20 , H02P21/32 , H02P2203/03 , H02P2207/05
摘要： Described is a method of determining an initial rotor position on start-up of a synchronous motor. The method comprises applying at each of a plurality of pre-set motor angles a pair of voltage vector pulses, the pair of voltage vector pulses comprising a first and second pulses, each having the same amplitude but opposite polarities, the second pulse being applied immediately or near immediately after the first pulse. The method includes determining the stator current responses to said pairs of applied voltage vector pulses at said plurality of pre-set motor angles. Then, the initial rotor position can be determined from either of a stator angle corresponding to a pair of vector voltage pulses resulting in (a) a largest sum of stator currents or (b) where the sum of stator currents changes from a negative to a positive motor angle.

2. 发明申请

US20190036469A1 Initial Rotor Position Detection Device and Method Based on Permanent-Magnet Synchronous Motor 审中-公开
公开(公告)号：US20190036469A1
公开(公告)日：2019-01-31
申请号：US16137041
申请日：2018-09-20
申请人： Wenzhou University
发明人： Yuxing DAI , Xiukai RUAN , Qibo CAI , Kelu WU
IPC分类号： H02P21/32 , H02P6/34 , H02P21/22
CPC分类号： H02P21/32 , H02P6/20 , H02P6/34 , H02P21/22 , H02P21/34
摘要： An initial rotor position detection device based on a permanent-magnet synchronous motor, including a host computer, a real-time simulation system, and a control system, where the real-time simulation system is connected to the control system, for determining an encoder pulse signal according to the model parameter of the permanent-magnet synchronous motor, the model parameter of the inverter, and a PWM pulse wave generated by the control system; and the control system is connected to the real-time simulation system, for using a binary search algorithm to determine an initial rotor angle of the permanent-magnet synchronous motor according to the encoder pulse signal sent by the real-time simulation system. A comprehensive closed-loop test circuit can be achieved by setting a host computer, a real-time simulation system, and a control system, and a used binary search algorithm can effectively and quickly detect an initial rotor position of a permanent-magnet synchronous motor.

3. 发明申请

US20180054148A1 METHOD AND SYSTEM FOR SENSORLESS CONTROL OF A PMSM MOTOR 审中-公开
公开(公告)号：US20180054148A1
公开(公告)日：2018-02-22
申请号：US15682225
申请日：2017-08-21
申请人： Lakeview Innovation Ltd.
发明人： Chen Zhao
IPC分类号： H02P21/32 , H02P21/24 , H02P6/182
CPC分类号： H02P21/32 , H02P6/181 , H02P6/182 , H02P6/183 , H02P6/185 , H02P21/24 , H02P2203/11 , H02P2207/055
摘要： A method and system for adaptive sensorless determination of the position of a PMSM motor is described. The system and method include: determining the rotor position and the rotor polarity by means of discrete signal injection for the range between standstill up to low rotational speed; determining the rotor position by means of continuous signal injection at a rotational speed that is lower than a first changeover speed; determining the rotor position by means of back EMF at a rotational speed that is higher than the first changeover speed; wherein by means of a motor control system, depending on the rotational speed, a switch is made between rotor position determination by continuous signal injection and rotor position determination by back EMF; and wherein during movement of the rotor, the rotor polarity and/or the rotor position are/is monitored and optionally adjusted at a point in time using the rotor polarity and/or the rotor position at a previous point in time.

4. 发明申请

US20180034395A1 AIRCRAFT STARTING AND GENERATING SYSTEM 审中-公开
公开(公告)号：US20180034395A1
公开(公告)日：2018-02-01
申请号：US15549415
申请日：2015-02-18
申请人： GE AVIATION SYSTEMS LLC
发明人： Hao HUANG , Jinhui ZHANG
IPC分类号： H02P9/30 , H02P9/48 , H02P9/08 , H02P21/32 , H02M7/06
CPC分类号： H02P9/302 , F05D2220/764 , F05D2260/85 , H02M7/06 , H02P9/08 , H02P9/48 , H02P21/32 , H02P2101/30 , H02P2103/20
摘要： An aircraft starting and generating system includes a starter/generator that includes a main machine, an exciter, and a permanent magnet generator. The system also includes an inverter/converter/controller that is connected to the starter/generator and that generates AC power to drive the starter/generator in a start mode for starting a prime mover of the aircraft, and that converts AC power, obtained from the starter/generator after the prime mover have been started, to DC power in a generate mode of the starter/generator. A main bridge gate driver is configured to drive a MOSFET-based bridge during start mode using Space Vector Pulse Width Modulation (SVPWM) and during generate mode using reverse conduction based inactive rectification.

5. 发明授权

US09692339B2 Method and system for estimating differential inductances in an electric machine 有权
公开(公告)号：US09692339B2
公开(公告)日：2017-06-27
申请号：US15015789
申请日：2016-02-04
申请人： ABB Schweiz AG
发明人： Tobias Rogg , Luca Peretti
IPC分类号： H02P21/00 , H02P21/14 , H02P6/18 , H02P23/00 , H02P21/32 , H02P21/22
CPC分类号： H02P21/14 , H02P6/186 , H02P21/0003 , H02P21/22 , H02P21/32 , H02P23/0031
摘要： A self-commissioning method for estimating differential inductances in an electric machine, such as e.g. a synchronous reluctance machine or interior permanent magnet machine, with cross-magnetization effects is provided. The electric machine is driven with PWM voltages to explore current plurality of operating points of the currents in the electric machine while keeping the electric machine at standstill or quasi-standstill. At each operating point PWM switching voltage transients are used as a small-signal excitation. Currents of the electric machine are measured by means of oversampling, which permit the reconstruction of the waveforms including the current ripple within a PWM period caused by the PWM switching transients. Finally, the differential inductances at each operating point are determined based on the determined direct and quadrature current waveforms and voltages.

6. 发明申请

US20160233807A1 Method And System For Estimating Differential Inductances In An Electric Machine 有权
标题翻译：电机差分电感估算方法及系统
公开(公告)号：US20160233807A1
公开(公告)日：2016-08-11
申请号：US15015789
申请日：2016-02-04
申请人： ABB Technology Ltd
发明人： Tobias Rogg , Luca Peretti
IPC分类号： H02P21/14 , H02P21/22 , H02P21/00
CPC分类号： H02P21/14 , H02P6/186 , H02P21/0003 , H02P21/22 , H02P21/32 , H02P23/0031
摘要： A self-commissioning method for estimating differential inductances in an electric machine, such as e.g. a synchronous reluctance machine or interior permanent magnet machine, with cross-magnetization effects is provided. The electric machine is driven with PWM voltages to explore current plurality of operating points of the currents in the electric machine while keeping the electric machine at standstill or quasi-standstill. At each operating point PWM switching voltage transients are used as a small-signal excitation. Currents of the electric machine are measured by means of oversampling, which permit the reconstruction of the waveforms including the current ripple within a PWM period caused by the PWM switching transients. Finally, the differential inductances at each operating point are determined based on the determined direct and quadrature current waveforms and voltages.
摘要翻译：一种用于估计电机中的差分电感的自调试方法，例如，提供了具有交叉磁化效应的同步磁阻电机或内部永磁机。电机用PWM电压驱动，以探索电机中电流的多个工作点，同时保持电机处于静止状态或准停机状态。在每个工作点，PWM开关电压瞬变被用作小信号激励。通过过采样来测量电机的电流，这允许重建由PWM切换瞬变引起的PWM周期内的电流纹波。最后，根据确定的直流和正交电流波形和电压确定每个工作点的差分电感。

7. 发明授权

US09397595B2 PMSM rotor angle identification 有权
标题翻译： PMSM转子角度识别
公开(公告)号：US09397595B2
公开(公告)日：2016-07-19
申请号：US14537076
申请日：2014-11-10
申请人： VACON OYJ
发明人： Tero Halkosaari , Jarno Hoffren
IPC分类号： H02P6/18
CPC分类号： H02P6/185 , H02P21/18 , H02P21/32
摘要： A method and a control device for identifying the angle and polarity of the rotor of a permanent magnet synchronous motor (PMSM), the motor including a stator, including windings and a rotor including at least two permanent magnets. The method includes the steps of determining the rotor d-axis direction by supplying a stator voltage vector pulses to the motor terminals at at least two different stator angles, measuring the phase current at each angle, and determining rotor d-axis position based on motor inductance value in each stator angles calculated from the measured values and determining the rotor d-axis polarity by supplying a current vector to the motor terminals at the q-axis direction, and determining the magnet polarity by observing the direction of the rotor rotation during the test pulses.
摘要翻译：一种用于识别永磁同步电动机（PMSM）的转子的角度和极性的方法和控制装置，所述电动机包括包括绕组的定子和包括至少两个永磁体的转子。该方法包括以下步骤：通过以至少两个不同的定子角度向电动机端子提供定子电压矢量脉冲来测量转子d轴方向，测量每个角度的相电流，并且基于电动机确定转子的d轴位置根据测量值计算每个定子角度的电感值，并通过在q轴方向向电动机端子提供电流矢量来确定转子的d轴极性，并且通过观察转子旋转的方向来确定磁体极性测试脉冲。

8. 发明申请

US20160043614A1 METHOD FOR THE DIAGNOSIS OF THE OFFSET OF THE RESOLVER OF AN ELECTRIC MACHINE 有权
标题翻译：电机解决方案偏差诊断方法
公开(公告)号：US20160043614A1
公开(公告)日：2016-02-11
申请号：US14823601
申请日：2015-08-11
申请人： MAGNETI MARELLI S.p.A.
发明人： Andrea STEFANI , Alessandro FOSSI , Roberto BETRO' , Marco RAIMONDI , Canio CATERINI
IPC分类号： H02K11/00
CPC分类号： B60L15/025 , B60L3/0038 , B60L3/0061 , B60L3/12 , B60L2220/14 , B60L2220/16 , B60L2240/421 , B60L2240/427 , B60L2240/429 , G01D5/2073 , G01D5/2448 , H02K11/0031 , H02K11/225 , H02P6/183 , H02P21/32 , H02P2203/11
摘要： A method for the diagnosis of the offset of the resolver of an electric motor, comprising acquiring a predetermined offset of a resolver associated with the electric motor; in a first transient, supplying an excitation current to the phases of the electric motor. As a consequence of the excitation current, a current established on the axis d of minimum reluctance and a current established on an axis q in phase quadrature with respect to the axis of minimum reluctance are determined. The correctness of the offset of the resolver is diagnosed if the current established on the axis d in the first transient is higher than the current established on the axis d in the second or third transient, and if the current established on the axis q in the first transient is lower than the current established on the axis q in the second or third transient.
摘要翻译：一种用于诊断电动机的旋转变压器的偏移的方法，包括获取与所述电动机相关联的旋转变压器的预定偏移; 在第一瞬态中，向电动机的相位提供励磁电流。作为励磁电流的结果，确定在最小磁阻的轴线d上建立的电流和在相对于最小磁阻轴的相位正交的轴线q上建立的电流。如果在第一瞬态中在轴d上建立的电流高于在第二或第三瞬态中在轴线d上建立的电流，并且如果在第i个瞬态中的轴线q上建立的电流，则确定解算器的偏移的正确性第一瞬态低于在第二或第三瞬态中在轴q上建立的电流。

9. 发明授权

US09143068B2 Estimating method for a rotor position of a motor and estimating device for the same 有权
标题翻译：电动机的转子位置的估计方法及其估计装置
公开(公告)号：US09143068B2
公开(公告)日：2015-09-22
申请号：US14160534
申请日：2014-01-21
申请人： DELTA ELECTRONICS, INC.
发明人： Yi-Cherng Lin
IPC分类号： H03K5/00 , H02P6/18 , H02P21/00
CPC分类号： H02P6/183 , H02P21/32
摘要： An estimating method for a rotor position of a motor and an estimating device for the same are disclosed herein. The estimating method includes injecting a first high frequency signal to the motor at a first estimating angle, generating a first sensing signal of the motor in a period when the first high frequency signal is injected to the motor, injecting a second high frequency signal to the motor at a second estimating angle, generating a second sensing signal of the motor in a period when the second high frequency signal is injected to the motor, determining a quadrant of an operating angle according to the first sensing signal and the second sensing signal, and acquiring the rotor position according to the first sensing signal, the second sensing signal, and the quadrant of the operating angle.
摘要翻译：这里公开了电动机的转子位置的估计方法及其估计装置。估计方法包括以第一估计角度向电动机注入第一高频信号，在第一高频信号被注入到电动机的时段内产生电动机的第一感测信号，向第二高频信号电动机处于第二估计角度，在第二高频信号被注入到电动机的时段期间产生电动机的第二感测信号，根据第一感测信号和第二感测信号确定操作角的象限，以及根据第一感测信号，第二感测信号和操作角度的象限来获取转子位置。

10. 发明申请

US20140232311A1 Method and System for Determining the Position of a Synchronous Motor's Rotor 有权
标题翻译：确定同步电机转子位置的方法和系统
公开(公告)号：US20140232311A1
公开(公告)日：2014-08-21
申请号：US14183642
申请日：2014-02-19
申请人： Microchip Technology Incorporated
发明人： Martin Hill
IPC分类号： H02P6/18
CPC分类号： H02P6/186 , H02K29/12 , H02P6/185 , H02P6/22 , H02P21/0085 , H02P21/18 , H02P21/32 , H02P2203/03
摘要： To establish an initial/resting position of a permanent magnet rotor, all motor stator windings are stimulated (voltage applied thereto) in sequence, the time it takes for current in the stimulated stator winding to rise to a specific current value is measured for each stator winding and these time measurement results processed. From the measured time results rotor position to within 60 degrees is determined and the position sector is known prior to starting/rotating the motor. Once the rotor position is known, the next commutation point in a six step sequence is known before actually starting/rotating the motor. Position measurement winding stimulation may be interleaved with commutation pulses, or the unexcited stator winding may be stimulated between commutation pulses to the other two excited stator, wherein one of the two stator windings remains connected to the power and provides a current return path to the unexcited but stimulated stator winding.
摘要翻译：为了建立永磁转子的初始/静止位置，所有电动机定子绕组按顺序被激励（施加到其上的电压），对于每个定子测量受激定子绕组中的电流上升到特定电流值所需的时间绕组和这些时间测量结果处理。从测量时间结果可以确定转子位置到60度以内，并且在启动/旋转电机之前已知位置扇区。一旦知道转子位置，在实际启动/旋转电机之前，已知六步序列中的下一个换向点。位置测量绕组刺激可以与换向脉冲交错，或者可以在到另外两个激励的定子的换向脉冲之间刺激未激励的定子绕组，其中两个定子绕组中的一个保持连接到电力并且提供到未激励的电流返回路径但激励了定子绕组。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式