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公开(公告)号：US20200041185A1
公开(公告)日：2020-02-06
申请号：US16339332
申请日：2017-10-05
Applicant: Johnson Controls Technology Company
Inventor： Ivan Jadric , Ajit W. Kane
Abstract: Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive configured to provide power to a motor that drives a compressor of the HVAC&R system and a silicon carbide transistor of the variable speed drive, where the silicon carbide transistor is configured to adjust a voltage, or a frequency, or both of power flowing through the variable speed drive.
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公开(公告)号：US10462942B2
公开(公告)日：2019-10-29
申请号：US15592018
申请日：2017-05-10
Applicant: Johnson Controls Technology Company
Inventor： Konstantin Borisov , Mark A. Nielsen , Jeffrey A. Martinelli , Brian L. Stauffer , Seth K. Gladfelter , Michael S. Todd , Ivan Jadric , Jeb W. Schreiber , Tim Beckley
Abstract: A variable speed drive includes a converter connected to an AC power source, a DC link connected to the converter, and an inverter connected to the DC link. The inverter converts DC voltage into an output AC power having a variable voltage and frequency. The inverter includes at least one power electronics module and associated control circuitry; a heat sink in thermal communication with the power electronics module and in fluid communication with a manifold. The manifold includes a tubular member having at least one vertical member portion and at least one horizontal member portion in fluid communication. A plurality of ports conduct cooling fluid into and out of the manifold. A bracket attaches the manifold to a structural frame. Brackets are provided for attachment of power electronics modules to the manifold.
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公开(公告)号：US20190158008A1
公开(公告)日：2019-05-23
申请号：US16253054
申请日：2019-01-21
Applicant: Johnson Controls Technology Company
Inventor： Konstantin A. Borisov , Ivan Jadric
CPC classification number: H02P21/50 , H02M1/15 , H02M1/32 , H02M1/4216 , H02M1/4233 , H02M5/4585 , H02M2001/0025 , H02P27/06 , Y02B70/126
Abstract: A system or method for a VSD with an active converter including a controller, an inductor, an active converter, a DC link, and an inverter. The active converter is controlled to receive an input AC voltage and output a boosted DC voltage to a DC link, up to 850 VDC, the active converter using only low voltage semiconductor switches to provide the 850 VDC DC link voltage. The controller is configured to operate with a reactive input current magnitude equal to zero at a predetermined system load, and at system loads less than the predetermined system load, to introduce a reactive input current that results in a converter voltage having a magnitude less than the input voltage, wherein the vector sum of the input voltage and an inductor voltage is equal to the converter voltage.
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Patent Agency Ranking
公开(公告)号：US09923497B2
公开(公告)日：2018-03-20
申请号：US15088096
申请日：2016-03-31
Applicant: Johnson Controls Technology Company
Inventor： Zhiqiao Wu , Ivan Jadric
CPC classification number: H02P6/181 , H02P1/52 , H02P6/18 , H02P6/185 , H02P21/141 , H02P23/14 , H02P25/024 , H02P25/03
Abstract: A chiller system includes a compressor configured to circulate a refrigerant between an evaporator and a condenser in a closed refrigerant loop and a synchronous motor configured to drive the compressor. The motor includes a stator winding and a rotor. The chiller system includes a controller configured to estimate a flux linkage of the rotor and generate a control signal for the motor based on the estimated flux linkage. Estimating the flux linkage includes applying a voltage of the stator winding to a transfer function having an error correction variable, using a first value of the error correction variable in the transfer function to obtain convergence of the flux linkage over an initial motor starting interval, and using a second value of the error correction variable after the initial motor starting interval to reduce an error in estimating the flux linkage.
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15.发明申请MOTOR CONTROL SYSTEM AND METHOD WITH FLUX LINKAGE ESTIMATION ERROR COMPENSATION 有权电机控制系统和方法与流量链接估计误差补偿公开(公告)号：US20160218654A1
公开(公告)日：2016-07-28
申请号：US15088095
申请日：2016-03-31
Applicant: Johnson Controls Technology Company
Inventor： Zhiqiao Wu , Ivan Jadric
IPC: H02P23/14
CPC classification number: H02P6/181 , H02P1/52 , H02P6/18 , H02P6/185 , H02P21/141 , H02P23/14 , H02P25/024 , H02P25/03
Abstract: A chiller system includes a compressor configured to circulate a refrigerant between an evaporator and a condenser in a closed refrigerant loop and a synchronous motor configured to drive the compressor. The motor includes a stator winding and a rotor. The chiller system includes a controller configured to estimate a flux linkage of the rotor and generate a control signal for the motor based on the estimated flux linkage. Estimating the flux linkage includes applying a voltage of the stator winding to a transfer function having an error correction variable, using a first value of the error correction variable in the transfer function to obtain convergence of the flux linkage over an initial motor starting interval, and using a second value of the error correction variable after the initial motor starting interval to reduce an error in estimating the flux linkage.
Abstract translation: 冷冻机系统包括压缩机，该压缩机构造成在闭合的制冷剂回路中的蒸发器和冷凝器之间循环制冷剂，以及构造成驱动压缩机的同步电动机。 电动机包括定子绕组和转子。 冷冻机系统包括控制器，该控制器被配置为基于估计的磁链来估计转子的磁链并且产生用于电动机的控制信号。 估计磁通链接包括使用传递函数中的误差校正变量的第一值将定子绕组的电压施加到具有误差校正变量的传递函数，以获得在初始电动机起动间隔上的磁链的会聚，以及 在初始电动机起动间隔之后使用误差校正变量的第二值，以减小估计磁链中的误差。
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公开(公告)号：US10859300B2
公开(公告)日：2020-12-08
申请号：US16339332
申请日：2017-10-05
Applicant: Johnson Controls Technology Company
Inventor： Ivan Jadric , Ajit W. Kane
Abstract: Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive configured to provide power to a motor that drives a compressor of the HVAC&R system and a silicon carbide transistor of the variable speed drive, where the silicon carbide transistor is configured to adjust a voltage, or a frequency, or both of power flowing through the variable speed drive.
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公开(公告)号：US20200244208A1
公开(公告)日：2020-07-30
申请号：US16755109
申请日：2018-10-10
Applicant: Johnson Controls Technology Company
Inventor： Ivan Jadric , Ajit Wasant Kane , Scott Victor Slothower
Abstract: In an embodiment of the present disclosure, a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a refrigerant loop and a compressor disposed along the refrigerant loop. The compressor is configured to circulate refrigerant through the refrigerant loop. The HVAC&R system also includes a motor configured to drive the compressor and a variable speed drive (VSD) configured to supply power to the motor. The VSD further includes a first power pod configured to supply a first power to the motor and a second power pod configured to supply a second power to the motor.
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公开(公告)号：US09654017B2
公开(公告)日：2017-05-16
申请号：US14962148
申请日：2015-12-08
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Konstantin Borisov , Mark A. Nielsen , Jeffrey A. Martinelli , Brian L. Stauffer , Seth K. Gladfelter , Michael S. Todd , Ivan Jadric , Jeb W. Schreiber , Tim Beckley
CPC classification number: H05K7/20936 , F25B31/006 , H02M5/40 , H02P27/06 , H05K7/20327 , H05K7/20354 , H05K7/20381 , H05K7/20927
Abstract: A variable speed drive includes a converter connected to an AC power source, a DC link connected to the converter, and an inverter connected to the DC link. The inverter converts DC voltage into an output AC power having a variable voltage and frequency. The inverter includes at least one power electronics module and associated control circuitry; a heat sink in thermal communication with the power electronics module and in fluid communication with a manifold. The manifold includes a tubular member having at least one vertical member portion and at least one horizontal member portion in fluid communication. A plurality of ports conduct cooling fluid into and out of the manifold. A bracket attaches the manifold to a structural frame. Brackets are provided for attachment of power electronics modules to the manifold.
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