公开(公告)号：US20070210652A1

公开(公告)日：2007-09-13

申请号：US11561663

申请日：2006-11-20

申请人： John G. Tracy ,  Frederick Tassitino

发明人： John G. Tracy ,  Frederick Tassitino

IPC分类号： H02J9/00

CPC分类号： H02J9/06 ,  H02J3/38 ,  H02J9/062 ,  H02M7/493 ,  H02M2007/4822 ,  Y10T307/615 ,  Y10T307/62 ,  Y10T307/625 ,  Y10T307/696

摘要： An uninterruptible power supply (UPS) system includes at least three UPSs configured to be connected in parallel to a common load. The system further includes control circuitry configured to support at least two redundant groups among the UPSs and to support at least two redundant subgroups among at least one of the redundant groups of UPSs. In this manner, a nested redundancy may be provided.

摘要翻译： 不间断电源（UPS）系统包括至少三个UPS，其被配置为并联连接到公共负载。 该系统还包括控制电路，其被配置为在UPS之间支持至少两个冗余组，并且在至少一个UPS冗余组中支持至少两个冗余子组。 以这种方式，可以提供嵌套冗余。

公开(公告)号：US20080265681A1

公开(公告)日：2008-10-30

申请号：US12136160

申请日：2008-06-10

申请人： Hans-Erik Pfitzer ,  Rune Lennart Jonsson ,  John G. Tracy ,  Miguel E. Chavez ,  Frederick Tassitino ,  Jason S. Anderson

发明人： Hans-Erik Pfitzer ,  Rune Lennart Jonsson ,  John G. Tracy ,  Miguel E. Chavez ,  Frederick Tassitino ,  Jason S. Anderson

IPC分类号： H02J9/06

CPC分类号： H02J9/062 ,  G01R31/40 ,  Y02P80/11 ,  Y10T307/62

摘要： A power supply apparatus includes first and second parallel-connected uninterruptible power supplies (UPSs), each including an AC/DC converter circuit and a DC/AC converter circuit having an input coupled to an output of the AC/DC converter circuit by a DC link, inputs of the AC/DC converter circuits of the first and second UPSs connected in common to an AC source and outputs of the DC/AC converter circuits of the first and second UPSs connected in common to a load. The first and second UPSs are configured to support a test mode wherein the first UPS is test loaded by transferring power from the output of the DC/AC converter circuit of the first UPS to the output of the DC/AC converter circuit of the second UPS. The first UPS may be configured to provide power to the load concurrent with test loading by the second UPS.

摘要翻译： 电源装置包括第一和第二并联不间断电源（UPS），每个电源包括AC / DC转换器电路和DC / AC转换器电路，其具有通过DC连接到AC / DC转换器电路的输出的输入 链路，共同连接到AC电源的第一和第二UPS的AC / DC转换器电路的输入以及共同连接到负载的第一和第二UPS的DC / AC转换器电路的输出。 第一和第二UPS被配置为支持测试模式，其中通过将功率从第一UPS的DC / AC转换器电路的输出传送到第二UPS的DC / AC转换器电路的输出来测试第一UPS 。 第一个UPS可以配置为向负载提供电力，同时由第二个UPS进行测试加载。

公开(公告)号：US20080218153A1

公开(公告)日：2008-09-11

申请号：US11682915

申请日：2007-03-07

申请人： Pratik Shirish Patel ,  Frederick Tassitino

发明人： Pratik Shirish Patel ,  Frederick Tassitino

IPC分类号： G01R23/16 ,  G01R23/00

CPC分类号： G01R29/04 ,  G01R19/2513 ,  G01R23/20

摘要： Provided are methods and apparatus for characterizing a power waveform. Some such methods include sampling the power waveform to generate a plurality of samples and, for each of the samples, recursively processing the sample to generate an aggregate signal energy value, processing the sample to generate a harmonic component signal energy value associated with at least one target harmonic frequency, and accumulating the aggregate signal energy value and the component signal energy value with previously generated aggregate signal energy values and component signal energy values to generate an accumulated aggregate signal energy value and an accumulated harmonic component signal energy value. Methods also include characterizing the power waveform responsive to the accumulated aggregate signal energy value and the accumulated harmonic component signal energy value.

摘要翻译： 提供了表征功率波形的方法和装置。 一些这样的方法包括采样功率波形以产生多个样本，并且对于每个样本，递归地处理样本以产生聚合信号能量值，处理样本以产生与至少一个相关联的谐波分量信号能量值 目标谐波频率，并用先前产生的聚合信号能量值和分量信号能量值累积聚合信号能量值和分量信号能量值，以产生累积的聚合信号能量值和累积谐波分量信号能量值。 方法还包括响应于累加的聚合信号能量值和累加的谐波分量信号能量值来表征功率波形。

公开(公告)号：US20050286274A1

公开(公告)日：2005-12-29

申请号：US10879441

申请日：2004-06-29

申请人： Hans-Erik Pfitzer ,  Rune Jonsson ,  John Tracy ,  Miguel Chavez ,  Frederick Tassitino ,  Jason Anderson

发明人： Hans-Erik Pfitzer ,  Rune Jonsson ,  John Tracy ,  Miguel Chavez ,  Frederick Tassitino ,  Jason Anderson

IPC分类号： G01R31/40 ,  H02J9/06 ,  H02M5/45

CPC分类号： H02J9/062 ,  G01R31/40 ,  Y02P80/11 ,  Y10T307/62

摘要： A power supply apparatus, such as an on-line UPS, includes an AC/DC converter circuit having an input configured to be coupled to an AC source, a DC/AC converter circuit having an input coupled to an output of the AC/DC converter circuit by a DC link, and a bypass circuit operative to couple and decouple the output of the DC/AC converter circuit to and from the input of the AC/DC converter circuit. Power is transferred from the output of DC/AC converter circuit via the bypass circuit to conduct a test of the apparatus, such as a factory or field load test. For example, power may be circulated around a loop including the AC/DC converter circuit, the DC/AC converter circuit and the bypass circuit to conduct the test in order to test these components under load. A status of such components may be determined responsive to the test. In further embodiments, such components may be calibrated responsive to the test.

摘要翻译： 诸如在线UPS的电源设备包括具有被配置为耦合到AC电源的输入的AC / DC转换器电路，具有耦合到AC / DC的输出的输入的DC / AC转换器电路 转换器电路以及用于将DC / AC转换器电路的输出与AC / DC转换器电路的输入耦合和去耦的旁路电路。 电源通过旁路电路从DC / AC转换器电路的输出传输，以对设备进行测试，如工厂或现场负载测试。 例如，可以在包括AC / DC转换器电路，DC / AC转换器电路和旁路电路的回路周围循环电力以进行测试，以便在负载下测试这些组件。 可以响应于测试来确定这些组件的状态。 在另外的实施例中，响应于测试可以校准这些部件。

公开(公告)号：US07502237B2

公开(公告)日：2009-03-10

申请号：US11682915

申请日：2007-03-07

申请人： Pratik Shirish Pratel ,  Frederick Tassitino

发明人： Pratik Shirish Pratel ,  Frederick Tassitino

IPC分类号： H02J1/02

CPC分类号： G01R29/04 ,  G01R19/2513 ,  G01R23/20

摘要： Provided are methods and apparatus for characterizing a power waveform. Some such methods include sampling the power waveform to generate a plurality of samples and, for each of the samples, recursively processing the sample to generate an aggregate signal energy value, processing the sample to generate a harmonic component signal energy value associated with at least one target harmonic frequency, and accumulating the aggregate signal energy value and the component signal energy value with previously generated aggregate signal energy values and component signal energy values to generate an accumulated aggregate signal energy value and an accumulated harmonic component signal energy value. Methods also include characterizing the power waveform responsive to the accumulated aggregate signal energy value and the accumulated harmonic component signal energy value.

摘要翻译： 提供了表征功率波形的方法和装置。 一些这样的方法包括采样功率波形以产生多个样本，并且对于每个样本，递归地处理样本以产生聚合信号能量值，处理样本以产生与至少一个相关联的谐波分量信号能量值 目标谐波频率，并用先前产生的聚合信号能量值和分量信号能量值累积聚合信号能量值和分量信号能量值，以产生累积的聚合信号能量值和累积谐波分量信号能量值。 方法还包括响应于累加的聚合信号能量值和累加的谐波分量信号能量值来表征功率波形。

公开(公告)号：US20060006741A1

公开(公告)日：2006-01-12

申请号：US10886483

申请日：2004-07-07

申请人： Frederick Tassitino ,  Hans-Erik Pfitzer ,  Jason Anderson ,  Michael Westerfield

发明人： Frederick Tassitino ,  Hans-Erik Pfitzer ,  Jason Anderson ,  Michael Westerfield

IPC分类号： H02J1/00

CPC分类号： H02M7/493 ,  H02J9/062 ,  Y10T307/511 ,  Y10T307/707

摘要： Paralleled uninterruptible power supplies (UPSs) including respective pulse-width modulation (PWM) power converter circuits coupled in common to an AC load bus have PWM cycles that are synchronized. In particular, sampling of control inputs of the PWM power converter circuits may be synchronized, such that, for example, sampling of control inputs to the PWM power converter circuits occurs at substantially the same time for each of the PWM power converter circuits. A common phase reference corresponding to an AC voltage phase for the AC load bus may be provided, and the PWM cycles of each of the power converter circuits may synchronized, e.g., phase locked, to the common phase reference. More particularly, the respective PWM cycles of the UPSs may be phase locked to phase locked sinusoidal reference signals generated at each of the UPSs. Sampling for other control functions may also be synchronized to the PWM cycles.

摘要翻译： 并联的不间断电源（UPS）包括共同耦合到交流负载总线的相应脉冲宽度调制（PWM）功率转换器电路，具有同步的PWM周期。 特别地，PWM功率转换器电路的控制输入的采样可以被同步，使得例如对于PWM功率转换器电路的PWM功率转换器电路的控制输入的采样基本上是相同的。 可以提供对应于用于AC负载总线的AC电压相位的公共相位基准，并且每个功率转换器电路的PWM周期可以同步（例如锁相）到公共相位基准。 更具体地，UPS的相应PWM周期可以被锁相到在每个UPS处产生的锁相正弦参考信号。 其他控制功能的采样也可以与PWM周期同步。

公开(公告)号：US20050288826A1

公开(公告)日：2005-12-29

申请号：US10874713

申请日：2004-06-23

申请人： Frederick Tassitino ,  Jason Anderson ,  Michael Westerfield

发明人： Frederick Tassitino ,  Jason Anderson ,  Michael Westerfield

IPC分类号： G05D11/00 ,  H02J9/06

CPC分类号： H02J9/062 ,  H02J2009/068 ,  Y10T307/516

摘要： Status of a bypass source of parallel-connected UPSs is determined from a load share when a loading of the parallel-connected UPSs meets a predetermined criterion. Status of a bypass source of the parallel-connected UPSs is determined from a bypass source voltage when the loading of the parallel-connected UPSs fails to meet the predetermined criterion. The loading may include an aggregate loading, and failure of a bypass source of a UPS may be identified responsive to detecting that a load share of the UPS is less than a predetermined proportion of the aggregate loading. Alternatively, failure of the bypass source may be identified by detecting that a bypass voltage fails to meet a predetermined criterion. Bypass circuits of the UPSs may be controlled responsive to a load share and/or a bypass source voltage.

摘要翻译： 并联UPS的旁路源的状态由并联UPS的负载满足预定标准时的负载分担决定。 当并联UPS的负载不能达到预定标准时，并联UPS的旁路源的状态由旁路电源电压确定。 装载可以包括总装载，并且可以响应于检测到UPS的负载份额小于集合装载的预定比例来识别UPS的旁路源的故障。 或者，可以通过检测旁路电压不能满足预定标准来识别旁路源的故障。 可以响应于负载共享和/或旁路源电压来控制UPS的旁路电路。