公开(公告)号：US07957166B2

公开(公告)日：2011-06-07

申请号：US11978939

申请日：2007-10-30

Applicant: Harold R. Schnetzka ,  Ivan Jadric ,  Shreesha Adiga Manoor ,  Steve Hoover ,  Kathleen S. Rogers ,  Mustafa Kemal Yanik

Inventor： Harold R. Schnetzka ,  Ivan Jadric ,  Shreesha Adiga Manoor ,  Steve Hoover ,  Kathleen S. Rogers ,  Mustafa Kemal Yanik

IPC: H02H7/122 ,  H02M1/12

CPC classification number: H02M5/4585 ,  H02M7/003

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07746020B2

公开(公告)日：2010-06-29

申请号：US11931993

申请日：2007-10-31

Applicant: Harold R. Schnetzka ,  Ivan Jadric ,  Shreesha Adiga Manoor

Inventor： Harold R. Schnetzka ,  Ivan Jadric ,  Shreesha Adiga Manoor

IPC: G05D23/275

CPC classification number: H02M1/12 ,  F25B49/025 ,  F25B2600/021 ,  H02M2001/123 ,  H02P27/08 ,  H02P29/50 ,  H02P2201/03 ,  H03L7/093 ,  H03L7/095 ,  H05K7/20936 ,  Y02B30/741

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09024559B2

公开(公告)日：2015-05-05

申请号：US13640322

申请日：2010-05-04

Applicant: Shreesha Adiga-Manoor ,  Michael S. Todd ,  Ivan Jadric

Inventor： Shreesha Adiga-Manoor ,  Michael S. Todd ,  Ivan Jadric

IPC: H02P6/00 ,  H03K17/16 ,  H02P27/06 ,  H03K17/10 ,  H03K17/12

CPC classification number: H03K17/168 ,  H02P27/06 ,  H03K17/107 ,  H03K17/127 ,  H03K17/163

Abstract: A converter module for a variable speed drive having a semiconductor device for precharge is described. The precharge circuit includes switching modules, one switching module with a first semiconductor switch connected in parallel or series with a second semiconductor switch. The second semiconductor switch is switched on and off during the precharge operation in order to limit the inrush current into the DC Link. After the precharge operation, the second semiconductor switch is turned on all the time and acts like a diode. The second semiconductor device may have a lower maximum current rating than the main semi-conductor devices. The lower current rated semiconductor device experience the same short circuit current as the higher current rated semiconductor device. The lower current rated semiconductor device can be supplied with a larger gate to emitter voltage than the higher current rated semiconductor device to equalize current between semiconductor devices.

Abstract translation: 描述了一种用于具有用于预充电的半导体器件的变速驱动器的转换器模块。 预充电电路包括开关模块，一个开关模块，其具有与第二半导体开关并联或串联连接的第一半导体开关。 在预充电操作期间，第二半导体开关被接通和关断，以限制进入DC Link的浪涌电流。 在预充电操作之后，第二半导体开关始终导通，并且起二极管的作用。 第二半导体器件可以具有比主半导体器件更低的最大电流额定值。 较低电流额定值的半导体器件具有与较高电流额定值的半导体器件相同的短路电流。 较低额定电流的半导体器件可以提供比较高电流额定半导体器件更大的栅极至发射极电压，以均衡半导体器件之间的电流。

公开(公告)号：US08286439B2

公开(公告)日：2012-10-16

申请号：US12572883

申请日：2009-10-02

Applicant: Zhiqiao Wu ,  Ivan Jadric ,  Michael S. Todd ,  Justin Drew Warner ,  Shreesha Adiga Manoor ,  Konstantin Borisov ,  Scott Victor Slothower ,  Kanishk Dubey ,  John C. Hansen

Inventor： Zhiqiao Wu ,  Ivan Jadric ,  Michael S. Todd ,  Justin Drew Warner ,  Shreesha Adiga Manoor ,  Konstantin Borisov ,  Scott Victor Slothower ,  Kanishk Dubey ,  John C. Hansen

IPC: F25B49/00

CPC classification number: H02P6/085 ,  F25B49/025 ,  F25B2600/0253 ,  Y02B30/741

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07764041B2

公开(公告)日：2010-07-27

申请号：US11932280

申请日：2007-10-31

Applicant: Harold R. Schnetzka ,  Shreesha Adiga Manoor

Inventor： Harold R. Schnetzka ,  Shreesha Adiga Manoor

IPC: H02P27/04

CPC classification number: H02M1/12 ,  F25B49/025 ,  F25B2600/021 ,  H02M2001/123 ,  H02P27/08 ,  H02P29/50 ,  H02P2201/03 ,  H03L7/093 ,  H03L7/095 ,  H05K7/20936 ,  Y02B30/741

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090109713A1

公开(公告)日：2009-04-30

申请号：US11978939

申请日：2007-10-30

Applicant: Harold R. Schnetzka ,  Ivan Jadric ,  Shreesha Adiga Manoor ,  Steve Hoover ,  Kathleen S. Rogers ,  Mustafa Kemal Yanik

Inventor： Harold R. Schnetzka ,  Ivan Jadric ,  Shreesha Adiga Manoor ,  Steve Hoover ,  Kathleen S. Rogers ,  Mustafa Kemal Yanik

IPC: H02M5/297 ,  H05K7/20

CPC classification number: H02M5/4585 ,  H02M7/003

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120298890A1

公开(公告)日：2012-11-29

申请号：US13520469

申请日：2011-01-12

Applicant: Shreesha Adiga-Manoor ,  Harold R. Schnetzka

Inventor： Shreesha Adiga-Manoor ,  Harold R. Schnetzka

IPC: G02B27/00

CPC classification number: H03K17/16 ,  H03K17/78 ,  H04B10/802

Abstract: An optocoupler circuit includes a switch connected in parallel with a photo LED, the photo LED having an anode and a cathode. The anode is connected to a power supply via a decoupling capacitor. The optocoupler circuit is arranged so that the switch turns on the photo LED when in the open position. When closed, the switch directs current flow through a series resistor to ground and shunts current flow away from the photo LED to turn off the photo LED. A second capacitor is connected to the cathode of the photo LED. The second capacitor is wired in series with a second switch and a current limiting resistor connected to ground. The first switch and second switch operate in complementary states to prevent the cathode connected capacitor from discharging. The disclosed optocoupler circuit provides the ability to function at increased levels of common mode voltage transients.

Abstract translation: 光耦合器电路包括与光LED平行连接的开关，该光LED具有阳极和阴极。 阳极通过去耦电容器连接到电源。 光耦合器电路布置成使得当处于打开位置时，开关接通照明LED。 闭合时，开关将电流流过串联电阻器接地，并将电流从照片LED分流，以关闭照片LED。 第二电容器连接到照明LED的阴极。 第二电容器与第二开关和限流电阻串联连接到地。 第一开关和第二开关工作在互补状态，以防止阴极连接的电容器放电。 所公开的光耦合器电路提供在增加的共模电压瞬变水平下工作的能力。

公开(公告)号：US08258664B2

公开(公告)日：2012-09-04

申请号：US12572947

申请日：2009-10-02

Applicant: Justin D. Warner ,  Ivan Jadric ,  Michael S. Todd ,  Zhiqiao Wu ,  Shreesha Adiga Manoor ,  Konstantin Borisov ,  Scott Victor Slothower ,  Kanishk Dubey ,  John C. Hansen

Inventor： Justin D. Warner ,  Ivan Jadric ,  Michael S. Todd ,  Zhiqiao Wu ,  Shreesha Adiga Manoor ,  Konstantin Borisov ,  Scott Victor Slothower ,  Kanishk Dubey ,  John C. Hansen

IPC: H02K21/00

CPC classification number: H02P6/085 ,  F25B49/025 ,  F25B2600/0253 ,  Y02B30/741

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08193756B2

公开(公告)日：2012-06-05

申请号：US12572864

申请日：2009-10-02

Applicant: Ivan Jadric ,  Zhiqiao Wu ,  Michael S. Todd ,  Justin Drew Warner ,  Shreesha Adiga Manoor ,  Konstantin Borisov ,  Scott Victor Slothower ,  Kanishk Dubey ,  John C. Hansen

Inventor： Ivan Jadric ,  Zhiqiao Wu ,  Michael S. Todd ,  Justin Drew Warner ,  Shreesha Adiga Manoor ,  Konstantin Borisov ,  Scott Victor Slothower ,  Kanishk Dubey ,  John C. Hansen

IPC: H02P7/00 ,  H02P27/00 ,  G05B5/01 ,  G05B11/01

CPC classification number: H02P6/085 ,  F25B49/025 ,  F25B2600/0253 ,  Y02B30/741

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100085000A1

公开(公告)日：2010-04-08

申请号：US12572864

申请日：2009-10-02

Applicant: Michael S. TODD ,  Zhiqiao WU ,  Ivan JADRIC ,  Shreesha ADIGA-MANOOR ,  Konstantin BORISOV ,  Scott V. SLOTHOWER ,  Kanishk DUBEY ,  Justin Drew WARNER ,  John C. HANSEN

Inventor： Michael S. TODD ,  Zhiqiao WU ,  Ivan JADRIC ,  Shreesha ADIGA-MANOOR ,  Konstantin BORISOV ,  Scott V. SLOTHOWER ,  Kanishk DUBEY ,  Justin Drew WARNER ,  John C. HANSEN

IPC: H02P6/14 ,  H02K1/28

CPC classification number: H02P6/085 ,  F25B49/025 ,  F25B2600/0253 ,  Y02B30/741

Abstract: 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.

Abstract translation: 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。