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公开(公告)号：CA2060440A1
公开(公告)日：1992-08-29
申请号：CA2060440
申请日：1992-01-31
Applicant: WILLS FRANK E , SCHNETZKA HAROLD R , HOFFER ROY D
Inventor： WILLS FRANK E , SCHNETZKA HAROLD R II , HOFFER ROY D
Abstract: A motor drive system for driving a single-phase PSC motor, in which the two motor windings are conductively isolated from each other, from a two phase power source. In one embodiment, the PSC motor is supplied from a two phase inverter circuit. The PSC motor is also connectable through a four-pole double-throw switch to either a single phase source including a run capacitor or the two phase inverter circuit.
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公开(公告)号：CA2060354A1
公开(公告)日：1992-08-16
申请号：CA2060354
申请日：1992-01-30
Applicant: WILLS FRANK E , SCHNETZKA HAROLD R , HOFFER ROY D , YORK INT CORP
Inventor： WILLS FRANK E , SCHNETZKA HAROLD R II , HOFFER ROY D
Abstract: A motor drive system for driving a conventional single phase PSC motor from a two-phase power source. In one embodiment, the PSC motor is supplied from a three-phase inverter that is controlled to generate two-phase power. In another embodiment, the PSC motor is connectable through a double-pole double-throw switch to either a single phase source including a run capacitor or a two-phase inverter source.
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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
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R.
Inventor： SCHNETZKA, Harold R.
IPC: H02H7/12
CPC classification number: H02H7/1216 , H02M1/32 , H02M5/458
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：WO2008097749A3
公开(公告)日：2008-11-06
申请号：PCT/US2008052217
申请日：2008-01-28
Applicant: JOHNSON CONTROLS TECH CO , SCHNETZKA HAROLD R , JADRIC IVAN
Inventor： SCHNETZKA HAROLD R , JADRIC IVAN
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 operating a variable speed drive to receive an input AC power at a fixed AC input voltage and frequency and provide an output AC power at a variable voltage and variable frequency. The variable speed drive includes a converter stage to convert the input AC voltage to a boosted DC voltage, a DC link connected to the converter stage to filter and store the boosted DC voltage from the converter stage; and an inverter stage to convert the boosted DC voltage into AC power with variable voltage and the variable frequency. An integral bypass contactor is connected in parallel with the VSD between the AC power source and the AC output power. The integral bypass contactor is arranged to bypass the VSD when the VSD output frequency and voltage are approximately equal with the AC input voltage and frequency.
Abstract translation: 用于操作变速驱动器以在固定的AC输入电压和频率下接收输入AC电力并以可变电压和可变频率提供输出AC电力的系统和方法。 变速驱动装置包括：转换器级，用于将输入交流电压转换成升压直流电压;直流链路，连接到转换器级以过滤并存储来自转换器级的升高的直流电压; 以及逆变器级，用于将升高的直流电压转换为具有可变电压和可变频率的交流电。 一个整体旁路接触器与交流电源和交流输出电源之间的VSD并联。 当VSD输出频率和电压近似等于交流输入电压和频率时，整体旁路接触器布置为旁路VSD。
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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
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY , SCHNETZKA, Harold R. , JADRIC, Ivan
Inventor： SCHNETZKA, Harold R. , JADRIC, Ivan
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: 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。
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Patent Agency Ranking6.发明申请SYSTEM AND METHOD TO EXTEND SYNCHRONOUS OPERATION OF AN ACTIVE CONVERTER IN A VARIABLE SPEED DRIVE 审中-公开用于在可变速驱动器中扩展主动转换器的同步操作的系统和方法
公开(公告)号：WO2008092154B1
公开(公告)日：2008-12-04
申请号：PCT/US2008052211
申请日：2008-01-28
Applicant: JOHNSON CONTROLS TECH CO , SCHNETZKA HAROLD R , ADIGA MANOOR SHREESHA
Inventor： SCHNETZKA HAROLD R , ADIGA MANOOR SHREESHA
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: 用于具有有源变换器的变速驱动器的同步操作的系统和方法包括在完全线路丢失期间将有源变换器的同步操作扩展到AC主电源电压。 相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AC电源并将矩形输出信号输出到一对锁相环（PLL）电路。 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; 并且第二锁相环电路包括第二滞后引线滤波器，该第二滞后引线滤波器被配置为具有低截止频率以便为滞后引线滤波器提供在电网中断期间存储电源电压的相位角的能力。
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7.发明申请
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
Inventor： SCHNETZKA, Harold R. , ADIGA MANOOR, Shreesha
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.
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公开(公告)号：WO2005086335B1
公开(公告)日：2005-11-17
申请号：PCT/US2005006227
申请日：2005-02-25
Applicant: YORK INT CORP , FEDERMAN ISRAEL , SCHNETZKA HAROLD R
Inventor： FEDERMAN ISRAEL , SCHNETZKA HAROLD R
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: 提供具有将AC电压转换为DC电压的转换器（202），对来自转换器（202）的能量进行过滤和存储的DC链路（204）以及多个逆变器（206）的变速驱动器（104） ），其中每个逆变器（206）被配置为将DC电压转换成AC电压以给连接到逆变器（206）的相应负载供电。 变换器（202）电连接到AC电源，DC链路（204）电连接到变换器（202），并且多个变换器（206）并联电连接到DC链路（204） 。 多个反相器（206）中的每个反相器（206）被配置为基本独立于多个反相器（206）的其他反相器（206）而操作。
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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
Applicant: YORK INTERNATIONAL CORPORATION , WILLS, Frank E. , SCHNETZKA, Harold R. , KESTER, Douglas A. , JUDGE, John F. , VALIYA NADUVATH, Mahesh , FEDERMAN, Israel
Inventor： WILLS, Frank E. , SCHNETZKA, Harold R. , KESTER, Douglas A. , JUDGE, John F. , VALIYA NADUVATH, Mahesh , FEDERMAN, Israel
IPC: F04C29/10
CPC classification number: F04C18/16 , F04C28/08 , F04C29/0085 , F25B1/047 , F25B49/025 , F25B2400/075 , F25B2400/13 , F25B2600/0253 , Y02B30/741
Abstract: 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.
Abstract translation: 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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10.发明申请
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
Inventor： SCHNETZKA, Harold R. , ADIGA MANOOR, Shreesha
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.
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