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公开(公告)号：US07957166B2
公开(公告)日：2011-06-07
申请号：US11978939
申请日：2007-10-30
申请人： Harold R. Schnetzka , Ivan Jadric , Shreesha Adiga Manoor , Steve Hoover , Kathleen S. Rogers , Mustafa Kemal Yanik
发明人： Harold R. Schnetzka , Ivan Jadric , Shreesha Adiga Manoor , Steve Hoover , Kathleen S. Rogers , Mustafa Kemal Yanik
CPC分类号： H02M5/4585 , H02M7/003
摘要： Systems and methods for improved Variable Speed Drives are provided. One embodiment relates to apparatus for common mode and differential mode filtering for motor or compressor bearing protection when operating with Variable Speed Drives, including conducted EMI/RFI input power mains mitigation. Another embodiment relates to a method to extend the synchronous operation of an Active Converter to the AC mains voltage during complete line dropout. Another embodiment relates to an Active Converter-based Variable Speed Drive system with Improved Full Speed Efficiency. Another embodiment relates to a liquid- or refrigerant-cooled inductor. The liquid- or refrigerant-cooled inductor may be used in any application where liquid or refrigerant cooling is available and a reduction in size and weight of a magnetic component is desired.
摘要翻译： 提供了改进变频器的系统和方法。 一个实施例涉及用于在使用变速驱动器（包括传导的EMI / RFI输入电源减轻）操作时用于电机或压缩机轴承保护的共模和差模过滤的装置。 另一个实施例涉及在完整的线路断开期间将有源转换器的同步操作扩展到AC电源电压的方法。 另一实施例涉及具有改进的全速效率的基于有源转换器的变速驱动系统。 另一个实施例涉及液体或制冷剂冷却的电感器。 液体或冷却剂冷却的电感器可以用于可用液体或制冷剂冷却的任何应用中，并且期望磁性部件的尺寸和重量的减小。
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公开(公告)号：US20090109713A1
公开(公告)日：2009-04-30
申请号：US11978939
申请日：2007-10-30
申请人： Harold R. Schnetzka , Ivan Jadric , Shreesha Adiga Manoor , Steve Hoover , Kathleen S. Rogers , Mustafa Kemal Yanik
发明人： Harold R. Schnetzka , Ivan Jadric , Shreesha Adiga Manoor , Steve Hoover , Kathleen S. Rogers , Mustafa Kemal Yanik
CPC分类号： H02M5/4585 , H02M7/003
摘要： Systems and methods for improved Variable Speed Drives are provided. One embodiment relates to apparatus for common mode and differential mode filtering for motor or compressor bearing protection when operating with Variable Speed Drives, including conducted EMI/RFI input power mains mitigation. Another embodiment relates to a method to extend the synchronous operation of an Active Converter to the AC mains voltage during complete line dropout. Another embodiment relates to an Active Converter-based Variable Speed Drive system with Improved Full Speed Efficiency. Another embodiment relates to a liquid- or refrigerant-cooled inductor. The liquid- or refrigerant-cooled inductor may be used in any application where liquid or refrigerant cooling is available and a reduction in size and weight of a magnetic component is desired.
摘要翻译： 提供了改进变频器的系统和方法。 一个实施例涉及用于在使用变速驱动器（包括传导的EMI / RFI输入电源减轻）操作时用于电机或压缩机轴承保护的共模和差模过滤的装置。 另一个实施例涉及在完整的线路断开期间将有源转换器的同步操作扩展到AC电源电压的方法。 另一实施例涉及具有改进的全速效率的基于有源转换器的变速驱动系统。 另一个实施例涉及液体或制冷剂冷却的电感器。 液体或冷却剂冷却的电感器可以用于可用液体或制冷剂冷却的任何应用中，并且期望磁性部件的尺寸和重量的减小。
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公开(公告)号：US07746020B2
公开(公告)日：2010-06-29
申请号：US11931993
申请日：2007-10-31
IPC分类号： G05D23/275
CPC分类号： H02M1/12 , F25B49/025 , F25B2600/021 , H02M2001/123 , H02P27/08 , H02P29/50 , H02P2201/03 , H03L7/093 , H03L7/095 , H05K7/20936 , Y02B30/741
摘要： Systems and methods for improved Variable Speed Drives having active inverters include an input filter for filtering common mode and differential mode currents. A three-phase inductor has three windings, each winding of the three-phase inductor having a center tap dividing each winding into a pair of inductor sections; and a three-phase input capacitor bank connected in a wye configuration to the three center taps at one end, and to a common point at the opposite end. The three-phase input capacitor bank provides a short circuit for frequencies above a predetermined fundamental frequency for shunting such frequencies through the three phase capacitor bank, while passing the predetermined fundamental frequency to an input AC power source.
摘要翻译： 具有有源反相器的改进型变速驱动器的系统和方法包括用于滤除共模和差模电流的输入滤波器。 三相电感器具有三个绕组，三相电感器的每个绕组具有将每个绕组分成一对电感器部分的中心抽头; 以及三相输入电容器组，其以一个配置形式连接到一端的三个中心抽头，另一端连接到公共点。 三相输入电容器组为预定基频以上的频率提供短路，用于通过三相电容器组将这些频率分流，同时将预定基频通过输入AC电源。
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4.发明授权System and method to extend synchronous operation of an active converter in a variable speed drive 有权扩展变频器中有源转换器的同步运行的系统和方法公开(公告)号：US07764041B2
公开(公告)日：2010-07-27
申请号：US11932280
申请日：2007-10-31
IPC分类号： H02P27/04
CPC分类号： H02M1/12 , F25B49/025 , F25B2600/021 , H02M2001/123 , H02P27/08 , H02P29/50 , H02P2201/03 , H03L7/093 , H03L7/095 , H05K7/20936 , Y02B30/741
摘要： Systems and methods for synchronous operation of variable speed drives having active converters include extending the synchronous operation of an active converter to the AC mains voltage during complete line dropout. A phase angle control circuit includes a squaring amplifier, a first phase-lock loop circuit associated and a second phase-lock loop circuit. The squaring amplifier receives the AC power source and outputs a rectangular output signal to a pair of phase lock loop (PLL) circuits. The first PLL circuit with a first lag-lead filter is configured with a high cutoff frequency to provide the converter stage with a phase angle parameter; and the second phase-lock loop circuit including a second lag-lead filter configured to have a low cutoff frequency to provide the lag-lead filter the capability of storing the phase angle of the mains voltage during mains interruption.
摘要翻译： 具有有源转换器的变速驱动器的同步操作的系统和方法包括在完整的线路断开期间将有源转换器的同步操作扩展到AC电源电压。 相位角控制电路包括平方放大器，相关的第一锁相环电路和第二锁相环电路。 平方放大器接收交流电源，并向一对锁相环（PLL）电路输出矩形输出信号。 具有第一滞后引线滤波器的第一PLL电路配置有高截止频率，以向转换器级提供相位角参数; 并且所述第二锁相环电路包括被配置为具有低截止频率的第二滞后引线滤波器，以提供所述滞后引线滤波器在电源中断期间存储所述电源电压的相位角的能力。
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公开(公告)号：US08336323B2
公开(公告)日：2012-12-25
申请号：US12572915
申请日：2009-10-02
申请人： Konstantin Borisov , Zhiqiao Wu , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Ivan Jadric , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
发明人： Konstantin Borisov , Zhiqiao Wu , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Ivan Jadric , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
IPC分类号： F25B49/00
CPC分类号： H02P6/085 , F25B49/025 , F25B2600/0253 , Y02B30/741
摘要： A drive system for a compressor of a chiller system includes a variable speed drive. The variable speed drive receives an input AC power at a fixed input AC voltage and a fixed input frequency, and provides an output AC power at a variable voltage and variable frequency. The variable speed drive includes a converter connected to an AC power source. The converter is arranged to convert the input AC voltage to a DC voltage. A DC link is connected to the converter and configured to filter and store the DC voltage from the converter. An inverter is connected to the DC link. A motor is connectable to the compressor for powering the compressor. A controller is arranged to control switching in the converter and the inverter. The controller is arranged to apply randomized pulse width modulation to vary the switching frequency of transistors in the converter and the inverter at each switching cycle. The motor may be a permanent magnet synchronous motor.
摘要翻译： 用于冷却器系统的压缩机的驱动系统包括变速驱动器。 变速驱动器以固定的输入交流电压和固定的输入频率接收输入的交流电力，并提供可变电压和可变频率的输出AC电力。 变速驱动器包括连接到AC电源的转换器。 该转换器被布置成将输入的AC电压转换成DC电压。 直流链路连接到转换器，并配置为对转换器的直流电压进行滤波和存储。 逆变器连接到直流链路。 电动机可连接到压缩机以为压缩机供电。 控制器被设置为控制转换器和逆变器中的开关。 控制器被布置为在每个开关周期中应用随机脉冲宽度调制以改变转换器和逆变器中的晶体管的开关频率。 电动机可以是永磁同步电动机。
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公开(公告)号：US08258664B2
公开(公告)日：2012-09-04
申请号：US12572947
申请日：2009-10-02
申请人： Justin D. Warner , Ivan Jadric , Michael S. Todd , Zhiqiao Wu , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
发明人： Justin D. Warner , Ivan Jadric , Michael S. Todd , Zhiqiao Wu , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
IPC分类号： H02K21/00
CPC分类号： H02P6/085 , F25B49/025 , F25B2600/0253 , Y02B30/741
摘要： A hybrid motor for powering a compressor of a chiller system includes a first rotor portion and a first stator portion configured as a permanent magnet motor and a second rotor portion and a second stator portion configured as a reluctance motor. The second rotor portion includes a reluctance-type rotor, and the second stator portion includes electromagnetic windings capable of inducing a rotary magnetic field. The first rotor portion and the second rotor portion are attached to a common drive shaft. The reluctance motor is arranged to generate start-up torque and initiate rotation of the drive shaft until the drive shaft achieves a predetermined rotational speed. The permanent magnet motor is arranged to power the drive shaft between the predetermined rotational speed and a maximum rotational speed.
摘要翻译： 用于为制冷机系统的压缩机供电的混合式电动机包括第一转子部分和构造为永磁电动机的第一定子部分和被构造为磁阻电动机的第二转子部分和第二定子部分。 第二转子部分包括磁阻型转子，第二定子部分包括能够引起旋转磁场的电磁绕组。 第一转子部分和第二转子部分附接到公共驱动轴。 磁阻马达被布置成产生启动扭矩并且启动驱动轴的旋转，直到驱动轴达到预定旋转速度。 永磁电动机被布置成在预定转速和最大转速之间为驱动轴提供动力。
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公开(公告)号：US08193756B2
公开(公告)日：2012-06-05
申请号：US12572864
申请日：2009-10-02
申请人： Ivan Jadric , Zhiqiao Wu , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
发明人： Ivan Jadric , Zhiqiao Wu , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
CPC分类号： H02P6/085 , F25B49/025 , F25B2600/0253 , Y02B30/741
摘要： A drive system for a compressor of a chiller system includes a variable speed drive. The variable speed drive is arranged to receive an input AC voltage at a fixed AC input voltage and provide an output AC power at a variable voltage and variable frequency. The variable speed drive includes a converter connected to an AC power source providing the input AC voltage. The converter is arranged to convert the input AC voltage to a DC voltage. A DC link is connected to the converter. The DC link filters and stores the DC voltage from the converter. An inverter is connected to the DC link. A motor connectable to the compressor for powering the compressor. An active filter connected in parallel with the motor. The active filter is arranged to generate high frequency currents having a magnitude and opposite polarity, with respect to the output AC power of the variable speed drive. The high frequency currents generated by active filter substantially cancel out high frequency currents flowing into the motor.
摘要翻译： 用于冷却器系统的压缩机的驱动系统包括变速驱动器。 变速驱动器设置为以固定的AC输入电压接收输入AC电压，并以可变电压和可变频率提供输出AC电力。 变速驱动器包括连接到提供输入AC电压的AC电源的转换器。 该转换器被布置成将输入的AC电压转换成DC电压。 直流母线连接到转换器。 直流链路过滤并存储转换器的直流电压。 逆变器连接到直流链路。 可连接到压缩机的电机为压缩机供电。 与电机并联连接的有源滤波器。 有源滤波器被布置成产生相对于变速驱动器的输出AC功率具有幅度和相反极性的高频电流。 由有源滤波器产生的高频电流基本抵消流入电动机的高频电流。
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公开(公告)号：US08286439B2
公开(公告)日：2012-10-16
申请号：US12572883
申请日：2009-10-02
申请人： Zhiqiao Wu , Ivan Jadric , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
发明人： Zhiqiao Wu , Ivan Jadric , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
IPC分类号： F25B49/00
CPC分类号： H02P6/085 , F25B49/025 , F25B2600/0253 , Y02B30/741
摘要： A drive system for a compressor of a chiller system includes a variable speed drive. The variable speed drive is arranged to receive an input AC power at a fixed AC input voltage and fixed input frequency and provide an output AC power at a variable voltage and variable frequency. The variable speed drive includes a converter connected to an AC power source providing the input AC voltage. The converter is arranged to convert the input AC voltage to a DC voltage. A DC link is connected to the converter. The DC link is arranged to filter and store the DC voltage from the converter. A first inverter and a second inverter are each connected to the DC link. A motor includes stator windings connected between the first inverter and the second inverter to power the motor by the output AC power from the first inverter and the second inverter. The motor is connectable to a compressor of the chiller system to power the compressor. The motor may be a permanent magnet synchronous motor.
摘要翻译： 用于冷却器系统的压缩机的驱动系统包括变速驱动器。 变速驱动器设置为以固定的AC输入电压和固定的输入频率接收输入AC电力，并以可变电压和可变频率提供输出AC电力。 变速驱动器包括连接到提供输入AC电压的AC电源的转换器。 该转换器被布置成将输入的AC电压转换成DC电压。 直流母线连接到转换器。 DC链路被布置为过滤和存储来自转换器的DC电压。 第一反相器和第二反相器各自连接到DC链路。 电动机包括连接在第一逆变器和第二逆变器之间的定子绕组，以通过来自第一逆变器和第二逆变器的输出AC电力为电动机供电。 电机可连接到冷却器系统的压缩机，为压缩机供电。 电动机可以是永磁同步电动机。
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公开(公告)号：US08353174B1
公开(公告)日：2013-01-15
申请号：US12572975
申请日：2009-10-02
申请人： Ivan Jadric , Zhiqiao Wu , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
发明人： Ivan Jadric , Zhiqiao Wu , Michael S. Todd , Justin Drew Warner , Shreesha Adiga Manoor , Konstantin Borisov , Scott Victor Slothower , Kanishk Dubey , John C. Hansen
CPC分类号： H02P6/085 , F25B49/025 , F25B2600/0253 , Y02B30/741
摘要： A chiller system is provided with a compressor, a condenser, and an evaporator connected in a closed refrigerant loop. A motor is connected to the compressor to power the compressor. A variable speed drive is connected to the motor. The variable speed drive is arranged to receive an input AC power at a fixed input AC voltage and a fixed input frequency and provide an output power at a variable voltage and variable frequency to the motor. The variable voltage has a maximum voltage greater in magnitude than the fixed input AC voltage and the variable frequency has a maximum frequency greater than the fixed input frequency. The variable speed drive includes a converter connected to an AC power source providing the input AC voltage, the converter is arranged to convert the input AC voltage to a DC voltage. A DC link is connected to the converter. The DC link is arranged to filter and store the DC voltage from the converter. An inverter is connected to the DC link. A controller is arranged to reference a first operating map associated with the compressor, a second operating map associated with the motor, and a third operating map associated with the variable speed drive. The controller further is arranged to analyze the first operating map second operating map and third operating map concurrently to select an operating point for the chiller system.
摘要翻译： 冷却器系统设置有连接在闭合制冷剂回路中的压缩机，冷凝器和蒸发器。 电动机连接到压缩机以为压缩机供电。 变速驱动器连接到电机。 变速驱动器被设置为以固定的输入AC电压和固定的输入频率接收输入AC电力，并且向电动机提供可变电压和可变频率的输出功率。 可变电压具有比固定输入AC电压更大的最大电压，并且可变频率具有大于固定输入频率的最大频率。 变速驱动器包括连接到提供输入AC电压的AC电源的转换器，转换器被布置成将输入AC电压转换为DC电压。 直流母线连接到转换器。 DC链路被布置为过滤和存储来自转换器的DC电压。 逆变器连接到直流链路。 控制器被布置为引用与压缩机相关联的第一操作图，与电动机相关联的第二操作图和与变速驱动器相关联的第三操作图。 控制器还被配置成同时分析第一操作图第二操作图和第三操作图以选择冷却器系统的操作点。
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