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21. 发明授权

US08552589B2 Digital control method for operating the UPS systems in parallel 有权
标题翻译：用于并行运行UPS系统的数字控制方法
公开(公告)号：US08552589B2
公开(公告)日：2013-10-08
申请号：US12780349
申请日：2010-05-14
申请人： Rajesh Ghosh , Mahima Agrawal , Pradeep Thalli , Damir Klikic
发明人： Rajesh Ghosh , Mahima Agrawal , Pradeep Thalli , Damir Klikic
IPC分类号： H02J7/00 , H02J9/00
CPC分类号： H02J9/061 , H02J9/062 , H02M7/493 , Y10T307/615 , Y10T307/625
摘要： Systems and methods of operating uninterruptible power supplies in parallel in a power distribution system to provide power to a load are provided. At least one uninterruptible power supply inverter provides power to the load. A communication interface provides a measured value of at least one of inverter output current of a first uninterruptible power supply and a measured value of the load current to a second uninterruptible power supply, and receives a measured value of at least one of inverter output current of the second uninterruptible power supply and the load current. A controller controls the uninterruptible power supplies to operate in one of a master state and a slave state. In the master state the uninterruptible power supply is configured to control the voltage to the load, and in the slave state the uninterruptible power supply is configured to determine a reference output current value based at least in part on at least one of the measured value of inverter output current of the second uninterruptible power supply and the measured value of the load current. The uninterruptible power supply in the slave state drives its inverter output current toward the reference output current value to provide its share of the load current.
摘要翻译：提供了在配电系统中并联运行不间断电源以向负载提供电力的系统和方法。至少一个不间断电源逆变器为负载提供电源。通信接口提供第一不间断电源的逆变器输出电流和第二不间断电源的负载电流的测量值中的至少一个的测量值，并且接收至少一个逆变器输出电流的测量值第二个不间断电源和负载电流。控制器控制不间断电源以在主状态和从状态之一中操作。在主状态中，不间断电源被配置为控制负载的电压，并且在从状态中，不间断电源被配置为至少部分地基于至少一个测量值来确定参考输出电流值，第二不间断电源的逆变器输出电流和负载电流的测量值。从站状态下的不间断电源将其逆变器输出电流驱动到参考输出电流值，以提供其负载电流的份额。

22. 发明授权

US08296317B2 Searchable object network 有权
标题翻译：可搜索对象网络
公开(公告)号：US08296317B2
公开(公告)日：2012-10-23
申请号：US12210420
申请日：2008-09-15
申请人： Rajesh Ghosh
发明人： Rajesh Ghosh
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30
摘要： Methods and systems for preparing data for searching and performing searches are provided. Searchable data definitions describe the location and format of searchable data within enterprise applications. Documents may be created from the searchable data definitions and indexed by a search engine, while preserving semantic information available within the enterprise application. Search results can include an indication of objects that are semantically related to each search result, providing more information and increased navigation and search options.
摘要翻译：提供了用于搜索和执行搜索的数据准备的方法和系统。可搜索的数据定义描述企业应用程序中可搜索数据的位置和格式。可以从可搜索的数据定义创建文档，并由搜索引擎进行索引，同时保留企业应用程序中可用的语义信息。搜索结果可以包括与每个搜索结果语义相关的对象的指示，提供更多信息和增加的导航和搜索选项。

23. 发明申请

US20120112547A1 SYSTEM AND METHOD FOR BIDIRECTIONAL DC-AC POWER CONVERSION 有权
标题翻译：双向直流电源转换的系统和方法
公开(公告)号：US20120112547A1
公开(公告)日：2012-05-10
申请号：US12940100
申请日：2010-11-05
申请人： Rajesh Ghosh , Raju Narsimha , Mahesh Lipare , Damir Klikic
发明人： Rajesh Ghosh , Raju Narsimha , Mahesh Lipare , Damir Klikic
IPC分类号： H02J9/06
CPC分类号： H02J9/062 , H02M3/33553 , H02M3/33584 , Y10T307/625
摘要： A power converter includes a power input configured to receive input power from an AC power source, a power output configured to provide output power to a load, a battery interface configured to exchange DC power with a battery, and power converter circuitry. The power converter circuitry is adapted to, in a first interconnection configuration, convert the input power into the DC power at the battery interface, and, in a second interconnection configuration, convert the DC power at the battery interface into the output power. The power converter circuitry has a power line, a transformer, a first connection node switchably connected to the power line in the first interconnection configuration and switchably connected to the transformer in the second interconnection configuration, and a second connection node switchably connected to the transformer in the first interconnection configuration and switchably connected to the power line in the second interconnection configuration.
摘要翻译：电力转换器包括被配置为从AC电源接收输入电力的电力输入，被配置为向负载提供输出功率的电力输出，被配置为与电池交换DC电力的电池接口以及功率转换器电路。功率转换器电路适于在第一互连配置中将输入功率转换为电池接口处的DC电力，并且在第二互连配置中，将电池接口处的DC电力转换为输出功率。功率转换器电路具有电源线，变压器，第一连接节点，其以第一互连配置可切换地连接到电力线，并且在第二互连配置中可切换地连接到变压器;以及第二连接节点，其可切换地连接到变压器，第一互连配置并且在第二互连配置中可切换地连接到电力线。

24. 发明申请

US20110278934A1 DIGITAL CONTROL METHOD FOR OPERATING THE UPS SYSTEMS IN PARALLEL 有权
标题翻译：用于并行运行UPS系统的数字控制方法
公开(公告)号：US20110278934A1
公开(公告)日：2011-11-17
申请号：US12780349
申请日：2010-05-14
申请人： Rajesh Ghosh , Mahima Agrawal , Pradeep Thalli , Damir Klikic
发明人： Rajesh Ghosh , Mahima Agrawal , Pradeep Thalli , Damir Klikic
IPC分类号： H02J9/00
CPC分类号： H02J9/061 , H02J9/062 , H02M7/493 , Y10T307/615 , Y10T307/625
摘要： Systems and methods of operating uninterruptible power supplies in parallel in a power distribution system to provide power to a load are provided. At least one uninterruptible power supply inverter provides power to the load. A communication interface provides a measured value of at least one of inverter output current of a first uninterruptible power supply and a measured value of the load current to a second uninterruptible power supply, and receives a measured value of at least one of inverter output current of the second uninterruptible power supply and the load current. A controller controls the uninterruptible power supplies to operate in one of a master state and a slave state. In the master state the uninterruptible power supply is configured to control the voltage to the load, and in the slave state the uninterruptible power supply is configured to determine a reference output current value based at least in part on at least one of the measured value of inverter output current of the second uninterruptible power supply and the measured value of the load current. The uninterruptible power supply in the slave state drives its inverter output current toward the reference output current value to provide its share of the load current.
摘要翻译：提供了在配电系统中并联运行不间断电源以向负载提供电力的系统和方法。至少一个不间断电源逆变器为负载提供电源。通信接口提供第一不间断电源的逆变器输出电流和第二不间断电源的负载电流的测量值中的至少一个的测量值，并且接收至少一个逆变器输出电流的测量值第二个不间断电源和负载电流。控制器控制不间断电源以在主状态和从状态之一中操作。在主状态中，不间断电源被配置为控制负载的电压，并且在从状态中，不间断电源被配置为至少部分地基于至少一个测量值来确定参考输出电流值，第二不间断电源的逆变器输出电流和负载电流的测量值。从站状态下的不间断电源将其逆变器输出电流驱动到参考输出电流值，以提供其负载电流的份额。

25. 发明申请

US20090201703A1 Systems and Methods for Uninterruptible Power Supply Control 有权
标题翻译：不间断电源控制系统与方法
公开(公告)号：US20090201703A1
公开(公告)日：2009-08-13
申请号：US12027490
申请日：2008-02-07
申请人： Damir Klikic , Pyboyina Msvvsv Prasad , Rajesh Ghosh , Mahima Agrawal
发明人： Damir Klikic , Pyboyina Msvvsv Prasad , Rajesh Ghosh , Mahima Agrawal
IPC分类号： H02M1/12
CPC分类号： H02J9/062 , H02M7/538 , H02M2001/0012
摘要： Systems and methods are provided for distributing power to a load by controlling an uninterruptible power supply that has an inverter and a filter, where the filter has an inductor and a capacitor. The systems and methods apply a pulse width modulation control signal to the inverter, sample inverter inductor current and compare the inductor current to a reference current. A duty cycle of the pulse width modulation control signal is adjusted to drive the inductor current at a second sampling time to a value substantially equal to a reference current at a first sampling time. The systems and methods can filter harmonic distortion from output signals and control uninterruptible power supply output.
摘要翻译：提供了通过控制具有反相器和滤波器的不间断电源（其中滤波器具有电感器和电容器）来向负载分配功率的系统和方法。系统和方法将脉宽调制控制信号应用于变频器，对变频器电感电流进行采样，并将电感电流与参考电流进行比较。调整脉冲宽度调制控制信号的占空比，以将第二采样时间的电感电流驱动到在第一采样时间基本上等于参考电流的值。系统和方法可以从输出信号中滤除谐波失真，并控制不间断电源输出。

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