公开(公告)号：WO2008092152A3

公开(公告)日：2008-07-31

申请号：PCT/US2008/052203

申请日：2008-01-28

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY ,  SCHNETZKA, Harold R. ,  JADRIC, Ivan ,  ADIGA MANOOR, Shreesha

Inventor： SCHNETZKA, Harold R. ,  JADRIC, Ivan ,  ADIGA MANOOR, Shreesha

IPC: H02M1/12 ,  H02M5/458

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.

公开(公告)号：WO2007030176A1

公开(公告)日：2007-03-15

申请号：PCT/US2006/022716

申请日：2006-06-12

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY ,  SCHNETZKA, Harold R. ,  JADRIC, Ivan

Inventor： SCHNETZKA, Harold R. ,  JADRIC, Ivan

IPC: H02M5/458

CPC classification number: H02J9/062 ,  H02M5/458

Abstract: A method of providing ridethrough capability in a chiller system employs a variable speed drive with an active converter stage, a DC link stage and an inverter stage for providing variable frequency and voltage to power at least one motor. An induction motor is coupled to the output of the inverter stage for driving a compressor in the chiller system. The ridethrough method comprises operating the active converter to regulate the DC link voltage of the DC link stage to a predetermined voltage level until the current through the active converter equals a predetermined current limit, then transferring regulation of the DC link to the inverter upon reaching the current limit of the converter. The compressor is unloaded, and the power flow through the inverter is reversed to maintain the voltage level of the DC link stage. Prerotation vanes, slide valve, or check valve are used to unload the compressor.

Abstract translation: 在冷冻机系统中提供穿通能力的方法采用具有有源转换器级，DC链路级和逆变器级的变速驱动器，用于提供可变频率和电压以对至少一个电动机供电。 感应电动机连接到逆变器级的输出端，用于驱动冷却器系统中的压缩机。 绕线方法包括操作有源转换器以将直流链路级的直流链路电压调节到预定电压电平，直到通过有功转换器的电流等于预定电流限制，然后在到达逆变器时将DC链路的调节转移到逆变器 转换器的电流限制。 压缩机卸载，逆变器的功率流反转，以保持直流母线的电压电平。 预压叶片，滑阀或止回阀用于卸载压缩机。

公开(公告)号：WO2006093648A1

公开(公告)日：2006-09-08

申请号：PCT/US2006/004579

申请日：2006-02-09

Applicant: YORK INTERNATIONAL CORPORATION ,  SCHNETZKA, Harold, R.

Inventor： SCHNETZKA, Harold, R.

IPC: H02H9/00

CPC classification number: H02M1/36 ,  H02H9/001 ,  H02M5/4585 ,  H02M7/125 ,  Y02B70/1483

Abstract: A variable speed drive (104) with a converter (202) that is controllable to precharge a DC link (204) is provided. The variable speed drive (104) also includes an inverter (206). The converter (202) converts a fixed line frequency, fixed line voltage AC power from an AC power source (102) into DC power. The DC link (204) filters the DC power from the converter (202). Finally, the inverter (206) is connected in parallel with the DC link (204) and converts the DC power from the DC link (204) into a variable frequency, variable voltage AC power. The converter (202) includes a plurality of pairs of power switches, wherein each pair of power switches includes a reverse blocking power switch arrangement (454, 650A, 652B) connected in anti-parallel to another reverse blocking power switch arrangement (456, 652A, 650B). Alternatively, each pair of power switches includes a reverse blocking power switch (454) connected in anti-parallel with a silicon carbide controlled rectifier (500).

Abstract translation: 提供了具有可控制以对DC链路（204）进行预充电的转换器（202）的变速驱动器（104）。 变速驱动器（104）还包括逆变器（206）。 转换器（202）将来自AC电源（102）的固定线路频率，固定线路电压AC电力转换为DC电力。 DC链路（204）对来自转换器（202）的DC电力进行滤波。 最后，逆变器（206）与直流母线（204）并联连接，并将来自直流母线（204）的直流电力转换成可变频率的可变电压交流电。 转换器（202）包括多对功率开关，其中每对功率开关包括与另一反向阻断功率开关装置（456,652A）反并联连接的反向阻断功率开关装置（454,650A，652B） ，650B）。 或者，每对功率开关包括与碳化硅可控整流器（500）反并联连接的反向阻断功率开关（454）。

公开(公告)号：WO2006093647A1

公开(公告)日：2006-09-08

申请号：PCT/US2006/004563

申请日：2006-02-09

Applicant: YORK INTERNATIONAL CORPORATION ,  SCHNETZKA, Harold, R. ,  JADRIC, Ivan

Inventor： SCHNETZKA, Harold, R. ,  JADRIC, Ivan

IPC: H02H9/00

CPC classification number: H02M1/36 ,  H02H9/001 ,  H02M5/4585 ,  H02M7/125 ,  Y02B70/1483

Abstract: A variable speed drive (104) with a converter (202) that is controllable to precharge a DC link (204) is provided. The variable speed drive (104) also includes an inverter (206). The converter (202) converts a fixed line frequency, fixed line voltage AC power from an AC power source (102) into DC power. The DC link (204) filters the DC power from the converter (202). Finally, the inverter (206) is connected in parallel with the DC link (204) and converts the DC power from the DC link (204) into a variable frequency, variable voltage AC power. The converter (202) includes a plurality of pairs of power switches, wherein each pair of power switches includes a reverse blocking power switch arrangement (454, (650A, 652B)) connected in anti-parallel to another reverse blocking power switch arrangement (456, (652A, 650B)). Alternatively, each pair of power switches includes a reverse blocking power switch (454) connected in anti-parallel with a silicon carbide controlled rectifier (500).

Abstract translation: 提供了具有可控制以对DC链路（204）进行预充电的转换器（202）的变速驱动器（104）。 变速驱动器（104）还包括逆变器（206）。 转换器（202）将来自AC电源（102）的固定线路频率，固定线路电压AC电力转换为DC电力。 直流链路（204）对来自转换器（202）的直流电力进行滤波。 最后，逆变器（206）与直流母线（204）并联连接，并将来自直流母线（204）的直流电力转换成可变频率的可变电压交流电。 转换器（202）包括多对功率开关，其中每对功率开关包括与另一反向阻断功率开关装置（456）反并联连接的反向阻断功率开关装置（454，（650A，652B）） ，（652A，650B））。 或者，每对功率开关包括与碳化硅可控整流器（500）反并联连接的反向阻断功率开关（454）。

公开(公告)号：WO2005086338A1

公开(公告)日：2005-09-15

申请号：PCT/US2005/006232

申请日：2005-02-25

Applicant: YORK INTERNATIONAL CORPORATION ,  WILLS, Frank E. ,  SCHNETZKA, Harold R.

Inventor： WILLS, Frank E. ,  SCHNETZKA, Harold R.

IPC: H02P7/00

CPC classification number: H02P27/04

Abstract: A system and method are provided to increase the horsepower of an induction motor 106. One technique for increasing the horsepower of a motor 106 is to connect the motor 106 to a variable speed drive 104 that is providing an output voltage and frequency greater than the standard line voltage and frequency. The connection of the variable speed drive 104 to the induction motor 106 enables the motor 106 to be operated in constant flux or constant volts/Hz mode and provide a greater output horsepower. Another technique for increasing the horsepower of a motor 106 is to use a dual voltage motor configured for lower voltage operation and then provide the motor 106 with the corresponding voltage and frequency for higher voltage operation.

Abstract translation: 提供了一种用于增加感应电动机106的功率的系统和方法。用于增加电动机106的功率的一种技术是将电动机106连接到变速驱动器104，变速驱动器104提供大于标准的输出电压和频率 线路电压和频率。 变速驱动器104与感应电动机106的连接使得电动机106能够以恒定的通量或恒定的伏特/赫兹模式工作，并提供更大的输出功率。 用于增加电动机106的功率的另一技术是使用配置用于较低电压操作的双电压电动机，然后为电动机106提供相应的电压和频率用于更高电压操作。

公开(公告)号：WO2011090853A1

公开(公告)日：2011-07-28

申请号：PCT/US2011/020915

申请日：2011-01-12

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY ,  ADIGA-MANOOR, Shreesha ,  SCHNETZKA, Harold R.

Inventor： ADIGA-MANOOR, Shreesha ,  SCHNETZKA, Harold R.

IPC: H03K17/78 ,  H03K17/16 ,  H04B10/00

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

Abstract: An optocoupler circuit (10) includes a switch (22) connected in parallel with a photo LED (20), the photo LED (20) having an anode and a cathode. The anode is connected to a power supply via a decoupling capacitor (28). The optocoupler circuit is arranged so that the switch turns on the photo LED when in the open position. When closed, the switch (22) directs current flow through a series resistor (32) to ground and shunts current flow away from the photo LED to turn off the photo LED. A second capacitor (38) is connected to the cathode of the photo LED. The second capacitor is wired in series with a second switch (40) and a current limiting resistor (42) connected to ground. The first switch (22) and second switch (04) operate in complementary states to prevent the cathode connected capacitor (38) from discharging. The disclosed optocoupler circuit (10) provides the ability to function at increased levels of common mode voltage transients.

Abstract translation: 光耦合器电路（10）包括与光LED（20）并联连接的开关（22），所述光LED（20）具有阳极和阴极。 阳极经由去耦电容器（28）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。 当闭合时，开关（22）将电流流过串联电阻（32）接地，并将电流从照片LED分流，以关闭照片LED。 第二电容器（38）连接到照明LED的阴极。 第二电容器与第二开关（40）和限流电阻（42）串联连接到地。 第一开关（22）和第二开关（04）以互补状态工作，以防止阴极连接的电容器（38）放电。 所公开的光耦合器电路（10）提供在增加的共模电压瞬变水平下起作用的能力。

公开(公告)号：WO2008092152A8

公开(公告)日：2008-12-24

申请号：PCT/US2008052203

申请日：2008-01-28

Applicant: JOHNSON CONTROLS TECH CO ,  SCHNETZKA HAROLD R ,  JADRIC IVAN ,  ADIGA MANOOR SHREESHA

Inventor： SCHNETZKA HAROLD R ,  JADRIC IVAN ,  ADIGA MANOOR SHREESHA

IPC: H02M1/12 ,  H02M5/458

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.

公开(公告)号：WO2007143217A3

公开(公告)日：2008-08-21

申请号：PCT/US2007013417

申请日：2007-06-07

Applicant: JOHNSON CONTROLS TECH CO ,  SCHNETZKA HAROLD R ,  JADRIC IVAN

Inventor： SCHNETZKA HAROLD R ,  JADRIC IVAN

IPC: H02M5/458

CPC classification number: H02J9/062 ,  H02M5/458

Abstract: A method of providing ride-through capability in a chiller/refrigeration system employs a variable speed drive with an active converter stage, a DC link stage and an inverter stage for providing variable frequency and voltage to power at least one motor. An induction motor is coupled to the output of the inverter stage for driving a compressor in the chiller/refrigeration system. The ride-through method comprises operating the active converter to regulate the DC link voltage of the DC link stage to a predetermined voltage level until the current through the active converter equals a predetermined current limit, then transferring regulation of the DC link to the inverter upon reaching the current limit of the converter. The compressor is unloaded, and the power flow through the inverter is reversed to maintain the voltage level of the DC link stage. Pre-rotation vanes, slide valve, or check valve are used to unload the compressor.

Abstract translation: 在冷冻机/制冷系统中提供穿越能力的方法采用具有有源转换器级，DC链路级和逆变器级的变速驱动器，用于提供可变频率和电压以对至少一个电动机供电。 感应电动机与变频器级的输出端连接，用于驱动冷冻机/制冷系统中的压缩机。 该直通方法包括操作有源转换器以将DC链路级的DC链路电压调节到预定的电压电平，直到通过有源转换器的电流等于预定的电流限制，然后将DC链路的调节转移到逆变器上 达到转换器的电流极限。 压缩机卸载，逆变器的功率流反转，以保持直流母线的电压电平。 预旋转叶片，滑阀或止回阀用于卸载压缩机。

公开(公告)号：WO2006121907A1

公开(公告)日：2006-11-16

申请号：PCT/US2006/017499

申请日：2006-05-05

Applicant: YORK INTERNATIONAL CORPORATION ,  JADRIC, Ivan ,  SCHNETZKA, Harold R.

Inventor： JADRIC, Ivan ,  SCHNETZKA, Harold R.

IPC: H02M5/45 ,  H02M7/48

CPC classification number: H02P27/08 ,  B60H1/00428 ,  H02P2201/09 ,  Y02T10/88

Abstract: A variable speed drive with a boost converter is provided for a chiller system driven by an induction motor. The boost converter can be a diode or thyristor rectifier followed by a boost DC/DC converter or a three-phase pulse width modulated boost converter. The boost converter provides a boosted voltage to the DC link, which results in a boosted voltage being applied to the induction motor by the inverter of the variable speed drive.

Abstract translation: 为由感应电动机驱动的冷却器系统提供具有升压转换器的变速驱动器。 升压转换器可以是二极管或晶闸管整流器，之后是升压型DC / DC转换器或三相脉宽调制升压转换器。 升压转换器为直流链路提供升压电压，这导致升压电压由变频驱动器的变频器施加到感应电动机。

公开(公告)号：WO2005086335A1

公开(公告)日：2005-09-15

申请号：PCT/US2005/006227

申请日：2005-02-25

Applicant: YORK INTERNATIONAL CORPORATION ,  FEDERMAN, Israel ,  SCHNETZKA, Harold, R.

Inventor： FEDERMAN, Israel ,  SCHNETZKA, Harold, R.

IPC: H02M5/458

CPC classification number: H02M5/458 ,  F25B49/025 ,  F25B2400/06 ,  F25B2500/06 ,  F25B2600/021 ,  H02M7/493 ,  H02M2001/0077 ,  Y02B30/741

Abstract: A variable speed drive (104) is provided having a converter (202) to convert an AC voltage to a DC voltage, a DC link (204) to filter and store energy from the converter (202), and a plurality of inverters (206), wherein each inverter (206) is configured to convert a DC voltage to an AC voltage to power a corresponding load connected to the inverter (206). The converter (202) is electrically connected to an AC power source, the DC link (204) is electrically connected to the converter (202), and the plurality of inverters (206) are electrically connected in parallel to the DC link (204). Each inverter (206) of the plurality of inverters (206) is configured to operate substantially independently of other inverters (206) of the plurality of inverters (206).

Abstract translation: 提供变速驱动器（104），其具有将AC电压转换为DC电压的转换器（202），用于对来自转换器（202）的能量进行滤波和存储的DC链路（204）以及多个逆变器（206） ），其中每个逆变器（206）被配置为将DC电压转换为AC电压以对连接到逆变器（206）的相应负载供电。 转换器（202）电连接到AC电源，DC链路（204）电连接到转换器（202），多个逆变器（206）与DC链路（204）并联电连接， 。 多个逆变器（206）的每个逆变器（206）构造成基本上独立于多个逆变器（206）中的其它逆变器（206）工作。