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公开(公告)号：US10734925B2
公开(公告)日：2020-08-04
申请号：US15103450
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Steven M. Millett , Ismail Agirman
Abstract: A regenerative drive (30) and method for providing power from such to at least one auxiliary power supply (41, 43) is disclosed. The drive may include a converter (32) and an inverter (34) connected by a DC bus (33), and a controller (54) configured to apply at least one of unipolar modulation and bipolar modulation to the converter (32) and the inverter (34), and to provide about half of the output voltage across the upper portion (130) of the DC bus (33) and about half of the output voltage across the lower portion (136) of the DC bus (33), when the upper and lower portions (130, 136) of the DC bus (33) are unevenly loaded. A first auxiliary power supply (41) may be connected to one of the upper and lower portions (130, 136) of the DC bus (33) and may receive power from the multilevel regenerative drive (30).
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公开(公告)号：US20170029242A1
公开(公告)日：2017-02-02
申请号：US15104101
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Steven M. Millett , HanJong Kim
Abstract: A regenerative elevator drive device, a method for buffering energy of a regenerative elevator drive device, and an elevator system are disclosed. The regenerative elevator drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The regenerative drive may further include a direct current (DC) link bridging the inverter and the converter, the DC link including a first capacitor bridging the inverter and the converter and a second capacitor in parallel with the first capacitor. The regenerative elevator drive device may be a multi-level regenerative drive device.
Abstract translation: 公开了一种再生电梯驱动装置，用于缓冲再生电梯驱动装置的能量的方法和电梯系统。 再生电梯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。 再生驱动器还可以包括桥接逆变器和转换器的直流（DC）链路，包括桥接逆变器和转换器的第一电容器的DC链路和与第一电容器并联的第二电容器。 再生电梯驱动装置可以是多级再生驱动装置。
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公开(公告)号：US10246294B2
公开(公告)日：2019-04-02
申请号：US15104101
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Steven M. Millett , HanJong Kim
Abstract: A regenerative elevator drive device, a method for buffering energy of a regenerative elevator drive device, and an elevator system are disclosed. The regenerative elevator drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The regenerative drive may further include a direct current (DC) link bridging the inverter and the converter, the DC link including a first capacitor bridging the inverter and the converter and a second capacitor in parallel with the first capacitor. The regenerative elevator drive device may be a multi-level regenerative drive device.
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公开(公告)号：US20170317607A1
公开(公告)日：2017-11-02
申请号：US15520471
申请日：2015-10-21
Applicant: Otis Elevator Company
Inventor： Ismail Agirman , Steven M. Millett , Daryl J. Marvin , Shashank Krishnamurthy
Abstract: A three-level converter includes a first converter leg having first switches connected across a positive DC node and a negative DC node, a second converter leg having second switches connected across the positive DC node and the negative DC node, and a third converter leg having third switches connected across the positive DC node the negative DC node. The converter includes a battery connected between the positive DC node and the negative DC node, and center-connected to a ground node having a ground potential. Each of the first, second, and third converter legs is connected to the ground node.
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Patent Agency Ranking
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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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：US11897725B2
公开(公告)日：2024-02-13
申请号：US16925945
申请日：2020-07-10
Applicant: Otis Elevator Company
Inventor： Steven M. Millett , Ismail Agirman , Amir Lotfi
CPC classification number: B66B1/32 , B66B5/02 , B66B11/0476
Abstract: A braking system for an elevator includes an electromagnetic brake operably connected to an elevator car, and a control circuit operably connected to the electromagnetic brake. The control circuit includes a switching mechanism configured to selectively modify a rate of engagement of the electromagnetic brake to selectively modify a rate of deceleration of the elevator car. The switching mechanism has a first position, a second position and a third position, to selectively modify the rate of engagement.
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公开(公告)号：US20200339382A1
公开(公告)日：2020-10-29
申请号：US16925945
申请日：2020-07-10
Applicant: Otis Elevator Company
Inventor： Steven M. Millett , Ismail Agirman , Amir Lotfi
Abstract: A braking system for an elevator includes an electromagnetic brake operably connected to an elevator car, and a control circuit operably connected to the electromagnetic brake. The control circuit includes a switching mechanism configured to selectively modify a rate of engagement of the electromagnetic brake to selectively modify a rate of deceleration of the elevator car. The switching mechanism has a first position, a second position and a third position, to selectively modify the rate of engagement.
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公开(公告)号：US20160308474A1
公开(公告)日：2016-10-20
申请号：US15103450
申请日：2013-12-18
Applicant: OTIS ELEVATOR COMPANY
Inventor： Steven M. Millett , Ismail Agirman
Abstract: A regenerative drive (30) and method for providing power from such to at least one auxiliary power supply (41, 43) is disclosed. The drive may include a converter (32) and an inverter (34) connected by a DC bus (33), and a controller (54) configured to apply at least one of unipolar modulation and bipolar modulation to the converter (32) and the inverter (34), and to provide about half of the output voltage across the upper portion (130) of the DC bus (33) and about half of the output voltage across the lower portion (136) of the DC bus (33), when the upper and lower portions (130, 136) of the DC bus (33) are unevenly loaded. A first auxiliary power supply (41) may be connected to one of the upper and lower portions (130, 136) of the DC bus (33) and may receive power from the multilevel regenerative drive (30).
Abstract translation: 公开了一种用于从至少一个辅助电源（41,43）提供电力的再生驱动（30）和方法。 驱动器可以包括转换器（32）和由DC总线（33）连接的逆变器（34），以及被配置为将至少一个单极调制和双极性调制施加到转换器（32）的控制器（54） 逆变器（34），并且跨越DC总线（33）的上部（130）提供约一半的输出电压，并且跨过DC总线（33）的下部（136）的输出电压的大约一半， 当直流总线（33）的上部和下部（130,136）不均匀地加载时。 第一辅助电源（41）可以连接到DC总线（33）的上部和下部（130,136）中的一个，并且可以从多电平再生驱动器（30）接收电力。
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