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1. 发明申请

WO2007143217A2 RIDE-THROUGH METHOD AND SYSTEM FOR HVAC&R CHILLERS 审中-公开
标题翻译：用于HVAC＆R冷却器的方法和系统
公开(公告)号：WO2007143217A2
公开(公告)日：2007-12-13
申请号：PCT/US2007/013417
申请日：2007-06-07
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , JADRIC, Ivan
发明人： SCHNETZKA, Harold R. , JADRIC, Ivan
CPC分类号： H02J9/062 , H02M5/458
摘要： 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.
摘要翻译：一种在冷却器/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。

2. 发明申请

WO2008092158A1 COOLING SYSTEM FOR VARIABLE SPEED DRIVES AND INDUCTORS 审中-公开
标题翻译：用于变速驱动和电感器的冷却系统
公开(公告)号：WO2008092158A1
公开(公告)日：2008-07-31
申请号：PCT/US2008/052215
申请日：2008-01-28
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , JADRIC, Ivan , HOOVER, Steve , ROGERS, Kathleen S. , YANIK, Mustafa Kemel
发明人： SCHNETZKA, Harold R. , JADRIC, Ivan , HOOVER, Steve , ROGERS, Kathleen S. , YANIK, Mustafa Kemel
IPC分类号： H05K7/20
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： A plastic liquid cooled variable speed drive or inductor provided. The cooler provides lightweight, space conservative, corrosive free cooling to the components as well as provides a mounting area for modules. A cooler can be mounted to the core of an inductor to absorb heat generated by the core losses.
摘要翻译：提供塑料液冷式变速驱动器或电感器。冷却器为组件提供轻便，空间保守，无腐蚀性的冷却，并为模块提供安装区域。可以将冷却器安装到电感器的芯部以吸收由芯损耗产生的热量。

3. 发明申请

WO2008092152A3 COMMON MODE AND DIFFERENTIAL MODE FILTER FOR VARIABLE SPEED DRIVE 审中-公开
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
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , JADRIC, Ivan , ADIGA MANOOR, Shreesha
发明人： SCHNETZKA, Harold R. , JADRIC, Ivan , ADIGA MANOOR, Shreesha
IPC分类号： H02M1/12 , H02M5/458
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.

4. 发明申请

WO2007030176A1 RIDE-THROUGH METHOD AND SYSTEM FOR HVAC&R CHILLERS 审中-公开
标题翻译：用于HVAC＆R冷却器的方法和系统
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
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , JADRIC, Ivan
发明人： SCHNETZKA, Harold R. , JADRIC, Ivan
IPC分类号： H02M5/458
CPC分类号： H02J9/062 , H02M5/458
摘要： 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.
摘要翻译：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。

5. 发明申请

WO2008137276A1 VARIABLE SPEED DRIVE 审中-公开
标题翻译：变速驱动
公开(公告)号：WO2008137276A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/060612
申请日：2008-04-17
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R.
发明人： SCHNETZKA, Harold R.
IPC分类号： H02H7/12
CPC分类号： H02H7/1216 , H02M1/32 , H02M5/458
摘要： A variable speed drive (VSD) for heating, ventilation, air-conditioning and refrigeration (HVAC & R) applications includes a variable speed drive system configured to receive an input AC voltage at a fixed AC input voltage and provide an output AC power at a variable voltage variable frequency. The variable speed drive includes a converter stage connected to an AC power source providing the input AC voltage, the converter stage being configured to convert the input AC voltage to a boosted DC voltage; a DC link connected to the converter stage, the DC link being configured to filter and store the boosted DC voltage from the converter stage; and an inverter stage connected to the DC link, the inverter stage being configured to convert the boosted DC voltage from the DC link into the output AC power having the variable voltage and the variable frequency. The variable speed drive also includes a ground fault protection system for interrupting fault current flowing to an input phase of the active converter, the ground fault on an input phase of the active converter, and the controller; wherein the active converter further includes at least two semiconductor switches for each power phase of the AC power source; each of inversely connected to switch in parallel, wherein each of the reverse lGBTs inversely connected to switch the RB IGBTs to a nonconductive state in response to a sensed ground fault current.
摘要翻译：用于加热，通风，空调和制冷（HVAC＆R）应用的变速驱动器（VSD）包括变速驱动系统，其被配置为接收固定的AC输入电压的输入AC电压，并在可变电压可变频率。变速驱动器包括连接到提供输入AC电压的AC电源的转换器级，转换器级被配置为将输入AC电压转换为升压的DC电压; 连接到所述转换器级的DC链路，所述DC链路被配置为过滤并存储来自所述转换器级的升压DC电压; 以及连接到所述DC链路的逆变器级，所述逆变器级被配置为将来自所述DC链路的升压DC电压转换为具有所述可变电压和所述可变频率的输出AC电力。变速驱动器还包括用于中断流入有源转换器的输入相的故障电流的接地故障保护系统，有源转换器的输入相的接地故障和控制器; 其中所述有源转换器还包括用于所述AC电源的每个电力相位的至少两个半导体开关; 每个反向连接到并联开关，其中每个反向lGBT反向连接以响应于感测到的接地故障电流将RB IGBT切换到非导通状态。

6. 发明申请

WO2008092154A2 SYSTEM AND METHOD TO EXTEND SYNCHRONOUS OPERATION OF AN ACTIVE CONVERTER IN A VARIABLE SPEED DRIVE 审中-公开
公开(公告)号：WO2008092154A2
公开(公告)日：2008-07-31
申请号：PCT/US2008/052211
申请日：2008-01-28
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , ADIGA MANOOR, Shreesha
发明人： SCHNETZKA, Harold R. , ADIGA MANOOR, Shreesha
IPC分类号： H02M5/42 , H02P27/00
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.

7. 发明申请

WO2011090853A1 OPTOCOUPLER CIRCUIT FOR GATE DRIVER 审中-公开
标题翻译：门控驱动器的电路板电路
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
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , ADIGA-MANOOR, Shreesha , SCHNETZKA, Harold R.
发明人： ADIGA-MANOOR, Shreesha , SCHNETZKA, Harold R.
IPC分类号： H03K17/78 , H03K17/16 , H04B10/00
CPC分类号： H03K17/16 , H03K17/78 , H04B10/802
摘要： 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.
摘要翻译：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。

8. 发明申请

WO2008092154A3 SYSTEM AND METHOD TO EXTEND SYNCHRONOUS OPERATION OF AN ACTIVE CONVERTER IN A VARIABLE SPEED DRIVE 审中-公开
公开(公告)号：WO2008092154A3
公开(公告)日：2008-07-31
申请号：PCT/US2008/052211
申请日：2008-01-28
申请人： JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , ADIGA MANOOR, Shreesha
发明人： SCHNETZKA, Harold R. , ADIGA MANOOR, Shreesha
IPC分类号： H02M5/42 , H02P27/00 , H03L7/093 , H03L7/095
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.

9. 发明申请

WO2006121907A1 VARIABLE SPEED DRIVE FOR A CHILLER SYSTEM 审中-公开
标题翻译：可变速度驱动器用于冷却系统
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
申请人： YORK INTERNATIONAL CORPORATION , JADRIC, Ivan , SCHNETZKA, Harold R.
发明人： JADRIC, Ivan , SCHNETZKA, Harold R.
IPC分类号： H02M5/45 , H02M7/48
CPC分类号： H02P27/08 , B60H1/00428 , H02P2201/09 , Y02T10/88
摘要： 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.
摘要翻译：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。

10. 发明申请

WO2005085646A1 SYSTEM AND METHOD FOR VARIABLE SPEED OPERATION OF A SCREW COMPRESSOR 审中-公开
标题翻译：螺杆压缩机变速运行的系统和方法
公开(公告)号：WO2005085646A1
公开(公告)日：2005-09-15
申请号：PCT/US2005/006162
申请日：2005-02-25
申请人： YORK INTERNATIONAL CORPORATION , WILLS, Frank E. , SCHNETZKA, Harold R. , KESTER, Douglas A. , JUDGE, John F. , VALIYA NADUVATH, Mahesh , FEDERMAN, Israel
发明人： WILLS, Frank E. , SCHNETZKA, Harold R. , KESTER, Douglas A. , JUDGE, John F. , VALIYA NADUVATH, Mahesh , FEDERMAN, Israel
IPC分类号： F04C29/10
CPC分类号： F04C18/16 , F04C28/08 , F04C29/0085 , F25B1/047 , F25B49/025 , F25B2400/075 , F25B2400/13 , F25B2600/0253 , Y02B30/741
摘要： A system and method are provided for variable speed operation of a screw compressor (108) to obtain increased capacity and efficiency. The screw compressor (108) is connected to an induction motor (106) driven by a variable speed drive (104), wherein the screw compressor (108) has a variable output capacity that is dependent on the output speed of the motor (106). To obtain increased capacity and efficiency, the screw compressor (108) is operated at a speed greater than the screw compressor's rated speed and does not include a slide valve. The maximum operating speed of the screw compressor (108), which speed is greater than the rated speed, is related to the maximum operating speed of the motor (106) when operated at a voltage and frequency provided by the variable speed drive (104) that is greater than the motor's rated voltage and frequency in a constant flux or constant volts/Hz mode.
摘要翻译：提供了一种用于螺杆压缩机（108）的可变速度操作以获得增加的容量和效率的系统和方法。螺杆式压缩机（108）连接到由变速驱动器（104）驱动的感应电动机（106），其中螺杆式压缩机（108）具有取决于电动机（106）的输出速度的可变输出容量，。为了获得更高的容量和效率，螺杆式压缩机（108）以大于螺杆压缩机的额定速度的速度运行，并且不包括滑阀。螺杆式压缩机（108）的最大运行速度（该速度大于额定转速）与在变速驱动器（104）提供的电压和频率下操作时电机（106）的最大运行速度有关，大于电机额定电压和频率的恒定通量或恒定电压/ Hz模式。

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