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1. 发明申请

US20190351770A1 METHODS AND SYSTEMS FOR CONTROLLING A DC BUS VOLTAGE FROM A THREE-PHASE VOLTAGE SOURCE 审中-公开
公开(公告)号：US20190351770A1
公开(公告)日：2019-11-21
申请号：US15983582
申请日：2018-05-18
申请人： Deere & Company
发明人： Guozhen ZHOU , Sumit DUTTA , Long WU , Danielle LI , Scott C. JOHNSON
IPC分类号： B60L3/00 , H02P27/08 , H02P21/22 , H02P21/00 , B60L15/20
摘要： In an example embodiment, a method of controlling a three-phase alternating current (AC) voltage source includes determining an error between a direct current (DC) bus voltage command and a detected DC bus voltage, the detected DC bus voltage being a part of an outer feedback loop, obtaining one of a virtual conductance or virtual resistance, the one of the virtual conductance or the virtual resistance being a part of an inner feedback loop relative to the outer feedback loop, regulate an output DC bus voltage based on the error and the one of the virtual conductance or the virtual resistance and controlling the three-phase AC voltage source based on the regulation of the output DC bus voltage.

2. 发明申请

US20150057868A1 DC BUS VOLTAGE CONTROL 有权
标题翻译：直流母线电压控制
公开(公告)号：US20150057868A1
公开(公告)日：2015-02-26
申请号：US14503736
申请日：2014-10-01
申请人： DEERE & COMPANY
发明人： Long WU , Chris J. TREMEL , Zimin W. VILAR , Alan K. GILMAN , Robert SHAW
IPC分类号： B60L15/20
CPC分类号： B60L15/20 , B60L2240/423 , B60L2240/527 , Y02T10/645 , Y02T10/7275 , Y10S903/906
摘要： Provided is a method and controller for controlling a vehicle dc bus voltage. The method includes generating a parameter. The parameter is based on a reference dc bus voltage squared. The method includes controlling the vehicle dc bus voltage based on the parameter and a detected dc bus voltage. The method may also include generating another parameter based on a power demand associated with at least one of a motoring mode operation and a generating mode operation of a traction motor associated with the vehicle. The power demand is indicated in a message received via a dedicated high speed data bus. The method includes controlling the vehicle dc bus voltage based on the another parameter.
摘要翻译：提供了一种用于控制车辆直流母线电压的方法和控制器。该方法包括生成参数。该参数基于参考直流母线电压平方。该方法包括基于参数和检测到的直流母线电压来控制车辆直流母线电压。该方法还可以包括基于与车辆相关联的牵引电动机的电动模式操作和发电模式操作中的至少一个相关联的功率需求产生另一参数。在通过专用高速数据总线接收的消息中指示功率需求。该方法包括基于另一参数来控制车辆直流总线电压。

3. 发明申请

US20230038561A1 DUAL-PURPOSE DRIVE AND CHARGER SYSTEMS AND METHODS THEREOF 有权
公开(公告)号：US20230038561A1
公开(公告)日：2023-02-09
申请号：US17392540
申请日：2021-08-03
申请人： Deere & Company
发明人： Tianjun FU , Yuheng WU , Long WU , Danielle LI , Eric VILAR
IPC分类号： H02M7/797 , H02J7/00 , H02M3/335 , H02P27/08 , B60L53/24 , B60L53/62 , B60L15/20
摘要： In an example embodiment, a system includes an inverter configured to operate in at least one of a charging mode or a drive mode, a cascaded direct current (DC)-DC converter, the DC-DC converter including a first portion of the inverter and at least one controller configured to selectively couple the first portion of the inverter to a first portion of the cascaded DC-DC converter during the charging mode, and selectively couple the inverter to a second portion of the cascaded DC-DC converter during the drive mode.

4. 发明申请

US20150288306A1 METHODS OF ESTIMATING A POSITION OF A ROTOR IN A MOTOR UNDER TRANSIENT AND SYSTEMS THEREOF 有权
标题翻译：在其瞬时和系统下估计电机中转子位置的方法
公开(公告)号：US20150288306A1
公开(公告)日：2015-10-08
申请号：US14243252
申请日：2014-04-02
申请人： DEERE & COMPANY , The Board of Regents of the University of Nebraska
发明人： Long WU , Yue ZHAO , Wei QIAO
IPC分类号： H02P6/18
CPC分类号： H02P6/183 , H02P6/18 , H02P21/0007 , H02P21/18 , H02P23/12
摘要： At least one example embodiment discloses a method of estimating a position of a rotor in a motor. The method includes obtaining a current regulation quality index based on a current command and a measured current, determining an estimated position of the rotor based on the current regulation quality index and position estimation data and controlling the motor based on the estimated position of the rotor.
摘要翻译：至少一个示例性实施例公开了一种估计电动机中的转子的位置的方法。该方法包括基于电流指令和测量电流获得电流调节质量指标，基于当前调节质量指标和位置估计数据确定转子的估计位置，并基于转子的估计位置来控制电动机。

5. 发明申请

US20230031930A1 DUAL-PURPOSE DRIVE AND CHARGER SYSTEMS AND METHODS THEREOF 有权
公开(公告)号：US20230031930A1
公开(公告)日：2023-02-02
申请号：US17380272
申请日：2021-07-20
申请人： Deere & Company
发明人： Tianjun FU , Yuheng WU , Long WU , Dan LI , David M. LOKEN , Richard E. WAINWRIGHT
IPC分类号： B60L53/24 , B60L50/51
摘要： In an example embodiment, a system includes a plurality of inverters configured to operate in at least one of a charging mode or a drive mode, a plurality of motors and at least one controller configured to selectively couple the plurality of inverters to the plurality of motors during a drive mode, and selectively couple at least one of the inverters to an alternating current (AC) source during the charging mode and decouple the at least one of the inverters from the plurality of motors during the charging mode.

6. 发明申请

US20190115820A1 VOLTAGE SENSOR-LESS POSITION DETECTION IN AN ACTIVE FRONT END 审中-公开
公开(公告)号：US20190115820A1
公开(公告)日：2019-04-18
申请号：US15783057
申请日：2017-10-13
申请人： Deere & Company
发明人： Tianjun FU , Long WU , Kent WANNER , Jason DICKHERBER , Chris J. TREMEL
IPC分类号： H02M1/08 , H02M7/5387 , H02M7/5395
摘要： A controller may include a memory having computer-readable instructions stored therein; and a processor configured to execute the computer-readable instructions to generate Pulse Width Modulation (PWM) signals to control power switches of an Active Front End (AFE) inverter based on at least a synthesized grid voltage vector angle at a terminal of an alternating current (AC) grid without using physical voltage sensors at the terminal of the AC grid, and control the AFE inverter to supply power to a load based on the PWM signals.

7. 发明申请

US20180062547A1 SYSTEMS AND METHODS FOR REDUCING DC LINK VOLTAGE DYNAMICS WITH LIMITED ENERGY STORAGE ELEMENT 审中-公开
公开(公告)号：US20180062547A1
公开(公告)日：2018-03-01
申请号：US15635376
申请日：2017-06-28
申请人： Deere & Company
发明人： Sumit DUTTA , Long WU , Danielle Li , Brij N. SINGH , Jared LERVIK
IPC分类号： H02P6/04 , H02P25/022 , H02P27/08 , B60L11/08 , B60L11/12
CPC分类号： H02P6/04 , B60L50/13 , B60L50/15 , H02P5/74 , H02P21/00 , H02P25/022 , H02P27/08 , H02P29/662
摘要： In an example embodiment, a controller includes a memory having computer-readable instructions stored therein and a processor. The processor is configured to execute the computer-readable instructions to determine a first set of inductance values for at least one load machine and second set of inductance values for a generator machine, determine a first set of gains for the at least one load machine based on the first set of inductance values and a regulator bandwidth, determine a second set of gains for the generator machine based on the second set of inductance values and the regulator bandwidth, and generate voltage commands for driving the at least one load machine and the generator machine based on at least the first and second sets of gains.

8. 发明申请

US20170149364A1 METHODS OF ESTIMATING A POSITION OF A ROTOR IN A MOTOR UNDER TRANSIENT AND SYSTEMS THEREOF 审中-公开
公开(公告)号：US20170149364A1
公开(公告)日：2017-05-25
申请号：US15402489
申请日：2017-01-10
申请人： Deere & Company , The Board of Regents of the University of Nebraska
发明人： Long WU , Yue ZHAO , Wei QIAO
IPC分类号： H02P6/18
CPC分类号： H02P6/183 , H02P6/18 , H02P21/0007 , H02P21/18 , H02P23/12
摘要： At least one example embodiment discloses a method of estimating a position of a rotor in a motor. The method includes obtaining a current regulation quality index based on a current command and a measured current, determining an estimated position of the rotor based on the current regulation quality index and position estimation data and controlling the motor based on the estimated position of the rotor.

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