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公开(公告)号：US11480373B2
公开(公告)日：2022-10-25
申请号：US16459432
申请日：2019-07-01
Applicant: Johnson Controls Technology Company
Inventor： Curtis Christian Crane , Mark Bodell, II , Curtis G. Rager , John C. Hansen , Dean K. Norbeck
IPC: F25B49/02 , H02P29/024 , H02P23/00
Abstract: A chiller system includes a compressor, a condenser and an evaporator in fluid communication. A motor drives the compressor. A variable speed drive powers the motor. An oil heater and pump system circulate heated lubricating oil in the compressor. A control panel is arranged to determine whether an input parameter is greater than or equal to a threshold parameter; deactivate the VSD in response to sensing that the input parameter is less than the threshold parameter; determine at least one chiller capacity control parameter at a point when the VSD is deactivated, and maintain the at least one chiller capacity control parameter while the VSD is deactivated; determine that the input parameter has been restored; determine a motor rotation and motor rotational speed; and in response to determining that the input parameter is restored and the motor is rotating in a forward direction, reactivate the VSD.
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公开(公告)号：US20190323751A1
公开(公告)日：2019-10-24
申请号：US16459432
申请日：2019-07-01
Applicant: Johnson Controls Technology Company
Inventor： Curtis Christian Crane , Mark Bodell, II , Curtis G. Rager , John C. Hansen , Dean K. Norbeck
IPC: F25B49/02
Abstract: A chiller system includes a compressor, a condenser and an evaporator in fluid communication. A motor drives the compressor. A variable speed drive powers the motor. An oil heater and pump system circulate heated lubricating oil in the compressor. A control panel is arranged to determine whether an input parameter is greater than or equal to a threshold parameter; deactivate the VSD in response to sensing that the input parameter is less than the threshold parameter; determine at least one chiller capacity control parameter at a point when the VSD is deactivated, and maintain the at least one chiller capacity control parameter while the VSD is deactivated; determine that the input parameter has been restored; determine a motor rotation and motor rotational speed; and in response to determining that the input parameter is restored and the motor is rotating in a forward direction, reactivate the VSD.
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Patent Agency Ranking
公开(公告)号：US10337781B2
公开(公告)日：2019-07-02
申请号：US14421058
申请日：2013-08-21
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Curtis Christian Crane , Mark Bodell, II , Curtis G. Rager , John C. Hansen , Dean K. Norbeck
IPC: F25B49/02 , H02P29/024 , H02P23/00
Abstract: A chiller system includes a compressor, a condenser and an evaporator in fluid communication. A motor drives the compressor. A variable speed drive powers the motor. An oil heater and pump system circulate heated lubricating oil in the compressor. A control panel is arranged to determine whether an input parameter is greater than or equal to a threshold parameter; deactivate the VSD in response to sensing that the input parameter is less than the threshold parameter; determine at least one chiller capacity control parameter at a point when the VSD is deactivated, and maintain the at least one chiller capacity control parameter while the VSD is deactivated; determine that the input parameter has been restored; determine a motor rotation and motor rotational speed; and in response to determining that the input parameter is restored and the motor is rotating in a forward direction, reactivate the VSD.
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4.发明授权公开(公告)号：US10075117B2
公开(公告)日：2018-09-11
申请号：US15031785
申请日：2015-01-21
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Zhiqiao Wu , John C. Hansen
CPC classification number: H02P27/047 , F25B49/025 , H01F30/14 , H02M1/14 , H02M7/068 , H02P13/06
Abstract: A multi-pulse transformer with multiple taps provides a constant magnitude voltage output to a variable speed chiller's compressor motor over a range of input voltages. The 3-phase transformer includes primary windings and a plurality of secondary windings. The secondary windings are electromagnetically coupled with the associated primary winding. The primary windings include taps for receiving multiple input AC voltages and the secondary windings have a single output terminal for supplying a predetermined output voltage which, after rectification produces a DC multi-pulse waveform for powering a DC link of a variable speed drive. Alternatively the 3-phase transformer includes multiple taps on the secondary windings. Each of the primary windings has a terminal for receiving an input AC voltage. The taps of the secondary windings provide an output voltage that is converted to a multi-pulse waveform for powering a DC link of a variable speed drive.
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公开(公告)号：US08820105B2
公开(公告)日：2014-09-02
申请号：US14088003
申请日：2013-11-22
Applicant: Johnson Controls Technology Company
Inventor： Dean K. Norbeck , John C. Hansen
CPC classification number: F25B49/025 , F25B2600/0253 , H02K5/225 , H02P1/28 , Y02B30/741
Abstract: A medium voltage power controller box is mounted on a chiller unit with the other components of the chiller system. The power controller box can be positioned on the chiller system unit to permit the power controller box to be close coupled to the motor, and specifically to the main motor lead exit hub without the need for any power conduit connections between the power controller box and the motor. In addition, the power controller box also does not require any control interface and receives controls from a control panel. A short conduit connection between the control panel and the power controller box is used to provide the necessary connections between the control panel and the power controller box.
Abstract translation: 中压电源控制箱与冷却器系统的其他部件安装在冷却器单元上。 电源控制器盒可以位于冷却器系统单元上，以允许电源控制器盒与电机紧密耦合，特别是主电机引线出口集线器，而不需要电源控制器盒和电源控制器盒之间的任何电源管道连接 发动机。 此外，电源控制器盒也不需要任何控制接口并从控制面板接收控制。 控制面板和电源控制箱之间的短导管连接用于在控制面板和电源控制箱之间提供必要的连接。
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6.发明授权公开(公告)号：US10707800B2
公开(公告)日：2020-07-07
申请号：US16126814
申请日：2018-09-10
Applicant: Johnson Controls Technology Company
Inventor： Zhiqiao Wu , John C. Hansen
Abstract: A multi-pulse transformer with multiple taps provides a constant magnitude voltage output to a variable speed chiller's compressor motor over a range of input voltages. The 3-phase transformer includes primary windings and a plurality of secondary windings. The secondary windings are electromagnetically coupled with the associated primary winding. The primary windings include taps for receiving multiple input AC voltages and the secondary windings have a single output terminal for supplying a predetermined output voltage which, after rectification produces a DC multi-pulse waveform for powering a DC link of a variable speed drive. Alternatively the 3-phase transformer includes multiple taps on the secondary windings. Each of the primary windings has a terminal for receiving an input AC voltage. The taps of the secondary windings provide an output voltage that is converted to a multi-pulse waveform for powering a DC link of a variable speed drive.
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7.发明申请公开(公告)号：US20190006976A1
公开(公告)日：2019-01-03
申请号：US16126814
申请日：2018-09-10
Applicant: Johnson Controls Technology Company
Inventor： Zhiqiao Wu , John C. Hansen
CPC classification number: H02P27/047 , F25B49/025 , H01F30/14 , H02M1/14 , H02M7/068 , H02P13/06
Abstract: A multi-pulse transformer with multiple taps provides a constant magnitude voltage output to a variable speed chiller's compressor motor over a range of input voltages. The 3-phase transformer includes primary windings and a plurality of secondary windings. The secondary windings are electromagnetically coupled with the associated primary winding. The primary windings include taps for receiving multiple input AC voltages and the secondary windings have a single output terminal for supplying a predetermined output voltage which, after rectification produces a DC multi-pulse waveform for powering a DC link of a variable speed drive. Alternatively the 3-phase transformer includes multiple taps on the secondary windings. Each of the primary windings has a terminal for receiving an input AC voltage. The taps of the secondary windings provide an output voltage that is converted to a multi-pulse waveform for powering a DC link of a variable speed drive.
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