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公开(公告)号：US10513414B2
公开(公告)日：2019-12-24
申请号：US15541007
申请日：2015-12-17
Applicant: Otis Elevator Company
Inventor： Yang Wang , HanJong Kim , Christopher S. Czerwinski , Edward Piedra , Shashank Krishnamurthy , Draguna Vrabie , Rui Huang
Abstract: A system including a drive portion, and an external computing device in communication with the drive portion, wherein the external computing device is configured to receive operational data from the drive portion, determine operational parameters based at least in part on the operational data, determine whether the operational parameters are valid, and automatically transmit commands to the drive portion if the operational parameters are valid.
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公开(公告)号：US10008917B2
公开(公告)日：2018-06-26
申请号：US15104195
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Steven M. Millett , Shashank Krishnamurthy , Yang Wang
IPC: B66B1/32 , H02M1/00 , H02P3/14 , H02M1/12 , H02M5/458 , H02M7/487 , B66B1/30 , H02P3/18 , H03H7/00
CPC classification number: H02M1/00 , B66B1/302 , B66B1/32 , H02M1/12 , H02M5/458 , H02M5/4585 , H02M7/487 , H02M2001/007 , H02P3/14 , H02P3/18 , H03H7/004
Abstract: A regenerative drive device and a method for configuring the DC link of a regenerative drive device are disclosed. The multilevel regenerative drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The multilevel regenerative drive device may also include a direct current (DC) link bridging the inverter and the converter, the DC link including a capacitor, an inverter neutral point, and a converter neutral point independent of the inverter neutral point. Alternatively, the inverter neutral point and the converter neutral point may be connected.
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公开(公告)号：US20170359000A1
公开(公告)日：2017-12-14
申请号：US15689509
申请日：2017-08-29
Applicant: Otis Elevator Company
Inventor： Luis Arnedo , Marinko Kovacic , Yang Wang , Shashank Krishnamurthy
Abstract: A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
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公开(公告)号：US20160311644A1
公开(公告)日：2016-10-27
申请号：US15103502
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Shashank Krishnamurthy , Prasanna Nagarajan , Hanjong Kim , Yang Wang
Abstract: A method (70) for controlling a multilevel regenerative drive (30) having a converter (32) and an inverter (34) is disclosed. The method (70) may include applying at least one of unipolar modulation and bipolar modulation to the converter (32), and applying at least one of unipolar modulation and bipolar modulation to the inverter (34). A control system (52) for a mechanical system (20) having a motor (28) is also disclosed. The control system (52) may comprise a converter (32) operatively connected to a power source (29), and an inverter (34) operatively connected to the motor (28) of the mechanical system (20). At least one controller may be in communication with the converter (32) and inverter (34), and may be configured to apply at least one of unipolar modulation and bipolar modulation to each of the converter (32) and the inverter (34).
Abstract translation: 公开了一种用于控制具有转换器（32）和逆变器（34）的多电平再生驱动（30）的方法（70）。 方法（70）可以包括将单极调制和双极性调制中的至少一个施加到转换器（32），以及向逆变器（34）施加单极调制和双极性调制中的至少一个。 还公开了一种用于具有马达（28）的机械系统（20）的控制系统（52）。 控制系统（52）可以包括可操作地连接到电源（29）的转换器（32）和可操作地连接到机械系统（20）的电动机（28）的逆变器（34）。 至少一个控制器可以与转换器（32）和逆变器（34）通信，并且可以被配置为向转换器（32）和逆变器（34）中的每一个施加单极调制和双极性调制中的至少一个。
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公开(公告)号：US20170005562A1
公开(公告)日：2017-01-05
申请号：US15104195
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Steven M. Millett , Shashank Krishnamurthy , Yang Wang
CPC classification number: H02M1/00 , B66B1/302 , B66B1/32 , H02M1/12 , H02M5/458 , H02M5/4585 , H02M7/487 , H02M2001/007 , H02P3/14 , H02P3/18 , H03H7/004
Abstract: A regenerative drive device and a method for configuring the DC link of a regenerative drive device are disclosed. The multilevel regenerative drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The multilevel regenerative drive device may also include a direct current (DC) link bridging the inverter and the converter, the DC link including a capacitor, an inverter neutral point, and a converter neutral point independent of the inverter neutral point. Alternatively, the inverter neutral point and the converter neutral point may be connected.
Abstract translation: 公开了一种用于配置再生驱动装置的DC链路的再生驱动装置和方法。 多电平再生驱动装置可以包括具有多个功率部件的逆变器和具有多个功率部件的转换器。 多电平再生驱动装置还可以包括桥接逆变器和转换器的直流（DC）链路，包括电容器的直流链路，逆变器中性点和与逆变器中性点无关的转换器中性点。 或者，可以连接逆变器中性点和转换器中性点。
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Patent Agency Ranking
公开(公告)号：US20160311645A1
公开(公告)日：2016-10-27
申请号：US15103170
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Yang Wang , Shashank Krishnamurthy
Abstract: A control system (48) having a motor (28) is disclosed. The control system (48) may include a converter (32) operatively connected to a power source (36), an inverter (34) operatively connected to the motor (28), and a controller (50) operatively connected to the converter (32) or inverter (34). The controller (50) may be configured to receive control command signals, receive state feedback signals, and generate duty cycle signals for upper and lower arms of each phase (40) of the motor (28) based at least in part on the control command signals and state feedback signals. The duty cycle signals may minimize neutral point current in the converter (32) or inverter (34).
Abstract translation: 公开了一种具有电机（28）的控制系统（48）。 控制系统（48）可以包括可操作地连接到电源（36）的转换器（32），可操作地连接到电动机（28）的逆变器（34））和可操作地连接到转换器（32）的控制器 ）或逆变器（34）。 控制器（50）可以被配置为至少部分地基于控制命令来接收控制命令信号，接收状态反馈信号，以及为电动机（28）的每相（40）的上臂和下臂生成占空比信号 信号和状态反馈信号。 占空比信号可以使转换器（32）或逆变器（34）中的中性点电流最小化。
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公开(公告)号：US10513413B2
公开(公告)日：2019-12-24
申请号：US15103502
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Shashank Krishnamurthy , Prasanna Nagarajan , Hanjong Kim , Yang Wang
Abstract: A method (70) for controlling a multilevel regenerative drive (30) having a converter (32) and an inverter (34) is disclosed. The method (70) may include applying at least one of unipolar modulation and bipolar modulation to the converter (32), and applying at least one of unipolar modulation and bipolar modulation to the inverter (34). A control system (52) for a mechanical system (20) having a motor (28) is also disclosed. The control system (52) may comprise a converter (32) operatively connected to a power source (29), and an inverter (34) operatively connected to the motor (28) of the mechanical system (20). At least one controller may be in communication with the converter (32) and inverter (34), and may be configured to apply at least one of unipolar modulation and bipolar modulation to each of the converter (32) and the inverter (34).
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公开(公告)号：US10221038B2
公开(公告)日：2019-03-05
申请号：US15103170
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Yang Wang , Shashank Krishnamurthy
Abstract: A control system (48) having a motor (28) is disclosed. The control system (48) may include a converter (32) operatively connected to a power source (36), an inverter (34) operatively connected to the motor (28), and a controller (50) operatively connected to the converter (32) or inverter (34). The controller (50) may be configured to receive control command signals, receive state feedback signals, and generate duty cycle signals for upper and lower arms of each phase (40) of the motor (28) based at least in part on the control command signals and state feedback signals. The duty cycle signals may minimize neutral point current in the converter (32) or inverter (34).
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公开(公告)号：US09998031B2
公开(公告)日：2018-06-12
申请号：US15689509
申请日：2017-08-29
Applicant: Otis Elevator Company
Inventor： Luis Arnedo , Marinko Kovacic , Yang Wang , Shashank Krishnamurthy
Abstract: A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
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公开(公告)号：US09755546B2
公开(公告)日：2017-09-05
申请号：US14646465
申请日：2012-11-21
Applicant: OTIS ELEVATOR COMPANY
Inventor： Luis Arnedo , Marinko Kovacic , Yang Wang , Shashank Krishnamurthy
Abstract: A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
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