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公开(公告)号：US06404346B1
公开(公告)日：2002-06-11
申请号：US09373501
申请日：1999-08-13
申请人： Ivan Jadrić , Harold R. Schnetzka
发明人： Ivan Jadrić , Harold R. Schnetzka
IPC分类号： G08B2100
CPC分类号： G01R31/263 , G01R31/343 , H02H7/0844
摘要： A method or system consistent with this invention for detecting if a thyristor failed open in an alternating current input phase of a load comprises measuring an instantaneous power delivered to the load during a cycle of the input; determining a peak power delivered to the load during the cycle of the input; calculating an average power delivered to the load during the cycle of the input; and determining if the thyristor failed open by comparing the magnitudes of the peak power and the average power.
摘要翻译： 根据本发明的用于检测在负载的交流输入阶段中晶闸管故障是否断开的方法或系统包括测量在输入周期期间递送给负载的瞬时功率; 确定在所述输入周期期间递送给所述负载的峰值功率; 计算在输入周期期间递送给负载的平均功率; 并通过比较峰值功率和平均功率的大小来确定晶闸管是否失效。
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公开(公告)号：US06211792B1
公开(公告)日：2001-04-03
申请号：US09373500
申请日：1999-08-13
IPC分类号： G08B2100
CPC分类号： H02H7/0844 , H02H7/0816
摘要： Methods and systems consistent with this invention detect a failed short thyristor in a solid-state controller for delivering power to a load during reduced-voltage operation. Methods and systems consistent with this invention detect a voltage across the thyristor, and indicate a failed short thyristor when the absolute value of the voltage across the thyristor remains below a threshold value during a predetermined period of time. Methods and systems consistent with this invention detect a failed open thyristor in a solid-state controller during full-voltage operation. Methods and systems consistent with this invention detect a voltage across the thyristor, and indicate a failed open thyristor when the absolute value of the voltage across the thyristor exceeds a threshold value.
摘要翻译： 与本发明一致的方法和系统检测固态控制器中的故障短晶闸管，用于在降压操作期间向负载输电。 与本发明一致的方法和系统检测晶闸管两端的电压，并且在预定时间段期间当晶闸管两端的电压的绝对值保持低于阈值时，指示故障的短晶闸管。 符合本发明的方法和系统在全电压操作期间检测固态控制器中的故障开路晶闸管。 与本发明一致的方法和系统检测晶闸管两端的电压，并且当晶闸管两端的电压的绝对值超过阈值时，指示失效的开路晶闸管。
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3.发明授权公开(公告)号：US07640767B2
公开(公告)日：2010-01-05
申请号：US11422964
申请日：2006-06-08
IPC分类号： F25D17/02
CPC分类号： F25B49/025 , F25B31/008 , F25B2600/0253 , F25D23/006 , Y02B30/741
摘要： The present invention is directed to a power transformer and VSD mounted on the chiller equipment. The transformer is preferably a liquid-filled transformer rated for medium/high voltage input, and at least two output low voltages, one voltage for the VSD and other power equipment, and another voltage for the control panel and control equipment. The placement of the power transformer on the chiller eliminates the need to allocate additional floor space for an auxiliary transformer or medium/high voltage VSD. The transformer also includes cooling means in the form of a heat exchanger in which the liquid is cooled by circulating condenser water, chilled water or refrigerant from the chiller system. The cooling means may also be connected to cooling coils connected to the VSD. The size of the power transformer is significantly reduced by the use of the chiller system to remove heat from the transformer while in operation, thereby maintaining the ambient temperature rise of the transformer within its rated operating temperature range. The transformer and VSD heat is discharged to the outside ambient eliminating additional cooling requirements for the equipment room.
摘要翻译： 本发明涉及一种安装在冷却器设备上的电力变压器和VSD。 变压器优选为额定为中/高电压输入的液体充满的变压器，以及至少两个输出低电压，用于VSD和其他电力设备的一个电压，以及用于控制面板和控制设备的另一个电压。 将电力变压器放置在冷却器上，无需为辅助变压器或中/高压VSD分配额外的占地面积。 变压器还包括热交换器形式的冷却装置，其中液体通过从冷却器系统循环冷凝器水，冷冻水或制冷剂来冷却。 冷却装置也可以连接到连接到VSD的冷却线圈。 通过使用冷却器系统在运行中除去变压器的热量，可以显着降低电力变压器的尺寸，从而将变压器的环境温度升高保持在其额定工作温度范围内。 变压器和VSD热量排放到外部环境中，消除了机房的额外冷却要求。
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公开(公告)号：US06434003B1
公开(公告)日：2002-08-13
申请号：US09840058
申请日：2001-04-24
IPC分类号： H05K720
CPC分类号： H05K7/20927
摘要： The present invention relates to a cold plate for cooling electronic components comprising a base having a top surface onto which at least one electronic component is to be placed; a cooling well formed in the top of the base and open at the top; a feed channel formed in the base for carrying fluid into the cooling well; a drain channel formed in the base for carrying cooling fluid away from the cooling well; cooling well inlets and outlets formed in the cooling well and in communication with the feed channel and drain channels, respectively. The feed and drain channels are sufficiently large relative to the size and flow characteristics of the well and cooling well inlets and outlets such that when the cooling fluid flows through the device, the pressure drop across the feed channel is substantially less than the pressure drop across the well.
摘要翻译： 本发明涉及一种用于冷却电子部件的冷板，包括：具有至少一个电子部件的顶表面的基座; 冷却井形成在基部的顶部并在顶部开口; 在基座中形成的用于将流体输送到冷却井中的进料通道; 形成在基座中的用于将冷却流体从冷却井运送的排水通道; 在冷却井中形成的冷却井入口和出口分别与进料通道和排放通道连通。 进料和排出通道相对于井和冷却井入口和出口的尺寸和流动特性足够大，使得当冷却流体流过装置时，跨进料通道的压降实质上小于 那个井
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公开(公告)号：US06404265B1
公开(公告)日：2002-06-11
申请号：US09373502
申请日：1999-08-13
IPC分类号： H03K1772
CPC分类号： H02M1/08
摘要： Systems consistent with this invention comprise a trigger circuit for triggering a silicon device having a control terminal, where the silicon device is subject to variations in the intrinsic control requirements. The trigger circuit comprises a source of direct current (DC) supply voltage, and a DC-to-DC current mode Buck converter for converting the supply voltage into an output DC current not subject to undesired variations due to variations in the supply voltage, the Buck converter supplying to the control terminal a minimum current to turn on the silicon device despite the variations in the intrinsic control requirements. The silicon device may comprise a silicon controlled rectifier (SCR) with a gate terminal, an anode terminal, and a cathode terminal, and wherein the control terminal is the gate terminal, and wherein the variations in the intrinsic control requirements are variations in the intrinsic gate-to-cathode control current and voltage requirements.
摘要翻译： 与本发明一致的系统包括用于触发具有控制端子的硅器件的触发电路，其中硅器件受到固有控制要求的变化。 触发电路包括直流（DC）电源电压源和DC-DC电流模式降压转换器，用于将电源电压转换成不受供电电压变化引起的不期望的变化的输出直流电流， 降压转换器为控制端子提供最小电流以打开硅器件，尽管内部控制要求有变化。 硅器件可以包括具有栅极端子，阳极端子和阴极端子的可控硅整流器（SCR），并且其中控制端子是栅极端子，并且其中本征控制要求的变化是内在的 门到阴极控制电流和电压要求。
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公开(公告)号：US06339352B1
公开(公告)日：2002-01-15
申请号：US09810662
申请日：2001-03-19
IPC分类号： H03K3037
CPC分类号： H03K3/0377
摘要： A system and method for providing an anticipatory Schmitt trigger circuit that changes the output level of the trigger circuit in anticipation of crossing a predetermined voltage value such as a zero voltage level. In an exemplary embodiment, the anticipatory Schmitt trigger includes a comparator, a feedback resistor, an input resistor, a pull-up resistor, a plurality of voltage divider resistors, and a capacitor.
摘要翻译： 一种用于提供预期的施密特触发电路的系统和方法，该电路改变触发电路的输出电平，以预期跨越诸如零电压电平的预定电压值。 在示例性实施例中，预期施密特触发器包括比较器，反馈电阻器，输入电阻器，上拉电阻器，多个分压器电阻器和电容器。
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公开(公告)号：US08014110B2
公开(公告)日：2011-09-06
申请号：US11932054
申请日：2007-10-31
申请人： Harold R. Schnetzka , Ivan Jadric
发明人： Harold R. Schnetzka , Ivan Jadric
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 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.
摘要翻译： 用于操作变速驱动器以固定的AC输入电压和频率接收输入AC电力的系统和方法，并以可变电压和可变频率提供输出AC电力。 变速驱动器包括转换器级，用于将输入交流电压转换为升压直流电压;连接到转换器级的直流链路，用于对来自转换器级的升压直流电压进行滤波和存储; 以及将升压的直流电压转换为具有可变电压和可变频率的交流电的逆变器级。 一体式旁路接触器与交流电源和交流输出电源之间的VSD并联连接。 当VSD输出频率和电压与交流输入电压和频率近似相等时，集成旁路接触器被布置为绕过VSD。
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8.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：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：US20080174393A1
公开(公告)日：2008-07-24
申请号：US11932479
申请日：2007-10-31
IPC分类号： H01F27/10
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。
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