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公开(公告)号：US10852177B2
公开(公告)日：2020-12-01
申请号：US15780958
申请日：2016-12-22
摘要： The present disclosure relates to a calibration device for calibrating a virtual flow meter of a production system. The production system includes components for transferring fluid, where the virtual flow meter is configured to estimate a flow rate of the fluid based on property values of the components and values of variable parameters of the components. The calibration device includes a sensitivity determining module configured to calculate a first sensitivity, where the first sensitivity is used to indicate a degree of change of the values of the variable parameters relative to disturbance of the property values, and a calibration module configured to calibrate the virtual flow meter according to the first sensitivity.
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公开(公告)号：US10547173B2
公开(公告)日：2020-01-28
申请号：US15161641
申请日：2016-05-23
摘要： A power generation system comprising a plurality of power generation units; a plurality of energy storage units; a plurality of switch units for connecting or disconnecting the power generation units and the energy storage units; and a controller for controlling the switch units to disconnect one or more idle power generation units from their corresponding energy storage units when the idle power generation units stop operating and to connect the disconnected energy storage unit to one operating power generation unit of the plurality of power generation units based on states-of-charge of the energy storage units. The power generation system may make best use of the energy storage units.
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公开(公告)号：US20130249315A1
公开(公告)日：2013-09-26
申请号：US13786742
申请日：2013-03-06
发明人： Ronghui Zhou , Fei Xu , Pengju Kang , Tong Zhao , Fei Li , Yong Li , Xiangming Shen
IPC分类号： H01H89/00
CPC分类号： H01H89/00 , H01L25/072 , H01L2924/0002 , H02M2001/325 , H03K17/102 , H03K17/122 , Y10T307/747 , H01L2924/00
摘要： A switching component comprising a number of switch sets in parallel is disclosed herein. Each switch set comprises a number of power switches and a backup power switch in series. The backup power switch has a default position of closed. Rated powers of the power switches and the backup power switch are less than a rated power of the switching component, and the switching component is modular. A switch system comprising the switching component is also described herein.
摘要翻译： 本文公开了包括并联的多个开关组的开关组件。 每个开关组包括多个电源开关和一个串联的备用电源开关。 备用电源开关的默认位置为关闭。 电源开关和备用电源开关的额定功率小于开关元件的额定功率，开关元件是模块化的。 本文还描述了包括切换组件的交换机系统。
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公开(公告)号：US20220057244A1
公开(公告)日：2022-02-24
申请号：US17275763
申请日：2016-09-30
摘要： The present discussion relates to the addressing sensor drift issues in virtual flow meter applications. By way of example, in certain implementations: 1) pressure, temperature, or other sensors are prioritized based on one or more evaluation criteria, 2) a determination is made as to whether there are sensor drifts for those sensors with high priority, and 3) sensor readings experiencing drift, such as above a specified or measureable threshold, are compensated. In this manner, virtual flow meter accuracy is maintained over time.
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公开(公告)号：US08963460B2
公开(公告)日：2015-02-24
申请号：US13673240
申请日：2012-11-09
发明人： Yong Li , Pengju Kang , Ronghui Zhou , Xiangming Shen , Xiao Chen , Zili Cai , Tong Zhao
CPC分类号： H02P6/145 , B60L15/025 , B60L2240/423 , B60L2240/427 , H02P6/153 , H02P21/0003 , Y02T10/643
摘要： A method for controlling a motor is provided. The method comprises obtaining electrical signals of the motor with a signal unit, the electrical signals comprising a motor torque and an angular velocity, calculating a voltage phase angle of a voltage vector with a calculating component, wherein a command torque, the motor torque, the angular velocity and a voltage amplitude of the voltage vector are inputs of the calculating component, and wherein the voltage phase angle is a variable and the voltage amplitude is a constant. The method further comprises modulating the voltage phase angle and the voltage amplitude to a switching signal for controlling an inverter; converting a direct current voltage to the voltage vector according to the switching signal, and applying the voltage vector to the motor.
摘要翻译： 提供一种用于控制电动机的方法。 该方法包括用信号单元获取电动机的电信号，电信号包括电动机转矩和角速度，用计算组件计算电压矢量的电压相位角，其中指令转矩，电动机转矩， 角速度和电压矢量的电压振幅是计算部件的输入，并且其中电压相位角是可变的，并且电压幅度是常数。 该方法还包括将电压相位角和电压振幅调制成用于控制逆变器的开关信号; 根据切换信号将直流电压转换为电压矢量，并向电动机施加电压矢量。
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公开(公告)号：US20130119904A1
公开(公告)日：2013-05-16
申请号：US13673240
申请日：2012-11-09
发明人： Yong Li , Pengju Kang , Ronghui Zhou , Xiangming Shen , Xiao Chen , Zili Cai , Tong Zhao
IPC分类号： H02P6/14
CPC分类号： H02P6/145 , B60L15/025 , B60L2240/423 , B60L2240/427 , H02P6/153 , H02P21/0003 , Y02T10/643
摘要： A method for controlling a motor is provided. The method comprises obtaining electrical signals of the motor with a signal unit, the electrical signals comprising a motor torque and an angular velocity, calculating a voltage phase angle of a voltage vector with a calculating component, wherein a command torque, the motor torque, the angular velocity and a voltage amplitude of the voltage vector are inputs of the calculating component, and wherein the voltage phase angle is a variable and the voltage amplitude is a constant. The method further comprises modulating the voltage phase angle and the voltage amplitude to a switching signal for controlling an inverter; converting a direct current voltage to the voltage vector according to the switching signal, and applying the voltage vector to the motor.
摘要翻译： 提供一种用于控制电动机的方法。 该方法包括用信号单元获取电动机的电信号，电信号包括电动机转矩和角速度，用计算组件计算电压矢量的电压相位角，其中指令转矩，电动机转矩， 角速度和电压矢量的电压振幅是计算部件的输入，并且其中电压相位角是可变的，并且电压幅度是常数。 该方法还包括将电压相位角和电压振幅调制成用于控制逆变器的开关信号; 根据切换信号将直流电压转换为电压矢量，并向电动机施加电压矢量。
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公开(公告)号：US09643513B2
公开(公告)日：2017-05-09
申请号：US14962332
申请日：2015-12-08
发明人： Jinping Gao , Hai Qiu , Tong Zhao , Fei Xu , Hongwu She
CPC分类号： B60L11/1868 , B60L7/16 , B60L11/005 , B60L2240/423 , B60L2240/547 , Y02T10/642 , Y02T10/7005 , Y02T10/7022 , Y02T10/7066
摘要： An energy management system comprises a first electricity transformer with one or more first leg circuit(s), a second electricity transformer with one or more second leg circuit(s), and a control device. One or more first leg circuit(s) is (are) coupled to an energy-type supply, and one or more second leg circuit(s) is (are) coupled to a power-type supply. The control device will control the first and second electricity transformers operating under at least one of two conditions when a traction device is under driving mode.
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公开(公告)号：US10069303B2
公开(公告)日：2018-09-04
申请号：US15094162
申请日：2016-04-08
发明人： Tong Zhao , Rong Li , Xu Fu , Bernard P. Landa
摘要： A power generation system is provided. The system includes a bus, at least two converters, an energy-type energy storage unit (ES), a power-type energy storage unit (PS) and a controller. The ES and the PS are coupled in parallel to the bus through corresponding converters of the at least two converters. The controller is configured to control the ES and the PS through the corresponding converters in at least two conditions during a charging mode and a discharging mode: when a power for the ES and PS is below a power threshold, control the power to flow between the ES and the bus; and when the power is above the power threshold, control a part of the power to flow between the ES and the bus and another part of the power to flow between the PS and the bus. And a method for generating power is also provided.
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公开(公告)号：US09895983B2
公开(公告)日：2018-02-20
申请号：US14511362
申请日：2014-10-10
发明人： Tong Zhao , Xi Lu , Ronghui Zhou , Fei Li
CPC分类号： B60L11/1803 , B60L11/12 , B60L11/1868 , B60L15/2045 , B60L2210/10 , Y02T10/645 , Y02T10/7005 , Y02T10/7066 , Y02T10/7077 , Y02T10/7216 , Y02T10/7283
摘要： A propulsion system includes a traction drive system, a boost converter, an energy-type energy source, a power-type energy source, and an energy management system. The boost converter includes a high voltage side and a low voltage side. The boost converter is coupled to the traction drive system on the high voltage side. The energy-type energy source is coupled to the boost converter on the low voltage side thereof. The power-type energy source is coupled to the boost converter on the low voltage side thereof. The energy management system is coupled to the boost converter and configured to control the energy-type energy source and the power-type energy source through the boost converter in at least two conditions during a motoring mode.
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公开(公告)号：US20150102667A1
公开(公告)日：2015-04-16
申请号：US14511362
申请日：2014-10-10
发明人： Tong Zhao , Xi Lu , Ronghui Zhou , Fei Li
CPC分类号： B60L11/1803 , B60L11/12 , B60L11/1868 , B60L15/2045 , B60L2210/10 , Y02T10/645 , Y02T10/7005 , Y02T10/7066 , Y02T10/7077 , Y02T10/7216 , Y02T10/7283
摘要： A propulsion system includes a traction drive system, a boost converter, an energy-type energy source, a power-type energy source, and an energy management system. The boost converter includes a high voltage side and a low voltage side. The boost converter is coupled to the traction drive system on the high voltage side. The energy-type energy source is coupled to the boost converter on the low voltage side thereof. The power-type energy source is coupled to the boost converter on the low voltage side thereof. The energy management system is coupled to the boost converter and configured to control the energy-type energy source and the power-type energy source through the boost converter in at least two conditions during a motoring mode.
摘要翻译： 推进系统包括牵引驱动系统，升压转换器，能量型能源，动力型能量源和能量管理系统。 升压转换器包括高压侧和低压侧。 升压转换器耦合到高压侧的牵引驱动系统。 能量型能源在其低压侧耦合到升压转换器。 功率型能量源在其低压侧耦合到升压转换器。 能量管理系统耦合到升压转换器，并被配置为在电动模式期间的至少两个条件下通过升压转换器来控制能量型能量源和功率型能量源。
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