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1. 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。

2. 发明授权

US08698354B2 System and method for bidirectional DC-AC power conversion 有权
标题翻译：双向DC-AC电源转换的系统和方法
公开(公告)号：US08698354B2
公开(公告)日：2014-04-15
申请号：US12940100
申请日：2010-11-05
申请人： Rajesh Ghosh , Raju Narasimha , Mahesh Lipare , Damir Klikic
发明人： Rajesh Ghosh , Raju Narasimha , Mahesh Lipare , Damir Klikic
IPC分类号： H02J7/00 , H02J9/00
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。

3. 发明授权

US07881079B2 UPS frequency converter and line conditioner 有权
标题翻译： UPS变频器和线路调节器
公开(公告)号：US07881079B2
公开(公告)日：2011-02-01
申请号：US12054109
申请日：2008-03-24
申请人： Pyboyina Prasad , Rajesh Ghosh , Damir Klikic
发明人： Pyboyina Prasad , Rajesh Ghosh , Damir Klikic
IPC分类号： H02J1/02 , G05F1/40
CPC分类号： H02M1/4208 , Y02B70/126
摘要： Systems and methods disclosed herein monitor and control input to a converter in one or more of a UPS, a frequency converter, or a line conditioner. Distortion due at least in part to ripple voltage can be removed from a control signal that controls input current to the converter. The systems and methods described herein afford a simple and effective way to reduce or eliminate one or more of subharmonic oscillation and total harmonic distortion from a converter input current during synchronous and asynchronous modes of operation. The converter may include one or more of a rectifier and an inverter.
摘要翻译： UPS，变频器或线路调节器中的一个或多个中的转换器的输入控制和控制的系统和方法。至少部分由纹波电压引起的失真可以从控制到转换器的输入电流的控制信号中去除。这里描述的系统和方法提供了一种简单有效的方法，用于在同步和异步操作模式期间减少或消除变换器输入电流中的一个或多个次谐波振荡和总谐波失真。转换器可以包括整流器和逆变器中的一个或多个。

4. 发明申请

US20130026835A1 SINGLE-BATTERY POWER TOPOLOGIES FOR ONLINE UPS SYSTEMS 有权
标题翻译：在线UPS系统的单电池电源拓扑
公开(公告)号：US20130026835A1
公开(公告)日：2013-01-31
申请号：US13192682
申请日：2011-07-28
申请人： Rajesh Ghosh , Mahendrakumar Lipare , Damir Klikic
发明人： Rajesh Ghosh , Mahendrakumar Lipare , Damir Klikic
IPC分类号： H02J9/00
CPC分类号： H02J9/062 , H02M1/10 , Y10T307/615 , Y10T307/625 , Y10T307/724
摘要： A power converter includes a first power input to receive AC input power, a second power input to receive backup power, a first DC bus configured to provide a positive DC output voltage, a second DC bus configured to provide a negative DC output voltage, and a power conversion circuit coupled to the first DC bus and the second DC bus. The power conversion circuit has an inductor, a first switch device coupled in series with the inductor, a second switch device coupled in series with the first switch device, and a bypass relay coupled in parallel with the second switch device. The power conversion circuit is switchably coupled to the first power input and the second power input, and is operable to charge the inductor and generate the positive and negative DC output voltages.
摘要翻译：电力转换器包括用于接收AC输入电力的第一电源输入端，用于接收备用电力的第二电源输入端，被配置为提供正DC输出电压的第一DC总线，被配置为提供负DC输出电压的第二DC总线;以及耦合到第一DC总线和第二DC总线的电力转换电路。功率转换电路具有电感器，与电感器串联耦合的第一开关器件，与第一开关器件串联耦合的第二开关器件，以及与第二开关器件并联耦合的旁路继电器。功率转换电路可切换地耦合到第一电源输入和第二电源输入，并且可操作地对电感器充电并产生正和负的直流输出电压。

5. 发明授权

US08116105B2 Systems and methods for uninterruptible power supply control 有权
标题翻译：不间断电源控制的系统和方法
公开(公告)号：US08116105B2
公开(公告)日：2012-02-14
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： H02M7/22 , H02M7/757 , H02M7/758 , H02M7/797 , H02M7/81
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。

6. 发明授权

US09024476B2 Single-battery power topologies for online UPS systems 有权
标题翻译：在线UPS系统的单电池电源拓扑
公开(公告)号：US09024476B2
公开(公告)日：2015-05-05
申请号：US13192682
申请日：2011-07-28
申请人： Rajesh Ghosh , Mahendrakumar Lipare , Damir Klikic
发明人： Rajesh Ghosh , Mahendrakumar Lipare , Damir Klikic
IPC分类号： H02J1/00 , H02J9/06 , H02M1/10
CPC分类号： H02J9/062 , H02M1/10 , Y10T307/615 , Y10T307/625 , Y10T307/724
摘要： A power converter includes a first power input to receive AC input power, a second power input to receive backup power, a first DC bus configured to provide a positive DC output voltage, a second DC bus configured to provide a negative DC output voltage, and a power conversion circuit coupled to the first DC bus and the second DC bus. The power conversion circuit has an inductor, a first switch device coupled in series with the inductor, a second switch device coupled in series with the first switch device, and a bypass relay coupled in parallel with the second switch device. The power conversion circuit is switchably coupled to the first power input and the second power input, and is operable to charge the inductor and generate the positive and negative DC output voltages.
摘要翻译：电力转换器包括用于接收AC输入电力的第一电源输入端，用于接收备用电力的第二电源输入端，被配置为提供正DC输出电压的第一DC总线，被配置为提供负DC输出电压的第二DC总线;以及耦合到第一DC总线和第二DC总线的电力转换电路。功率转换电路具有电感器，与电感器串联耦合的第一开关器件，与第一开关器件串联耦合的第二开关器件，以及与第二开关器件并联耦合的旁路继电器。功率转换电路可切换地耦合到第一电源输入和第二电源输入，并且可操作地对电感器充电并产生正和负的直流输出电压。

7. 发明申请

US20090237963A1 UPS FREQUENCY CONVERTER AND LINE CONDITIONER 有权
标题翻译： UPS频率转换器和线路调节器
公开(公告)号：US20090237963A1
公开(公告)日：2009-09-24
申请号：US12054109
申请日：2008-03-24
申请人： Pyboyina Prasad , Rajesh Ghosh , Damir Klikic
发明人： Pyboyina Prasad , Rajesh Ghosh , Damir Klikic
IPC分类号： H02M1/12
CPC分类号： H02M1/4208 , Y02B70/126
摘要： Systems and methods disclosed herein monitor and control input to a converter in one or more of a UPS, a frequency converter, or a line conditioner. Distortion due at least in part to ripple voltage can be removed from a control signal that controls input current to the converter. The systems and methods described herein afford a simple and effective way to reduce or eliminate one or more of subharmonic oscillation and total harmonic distortion from a converter input current during synchronous and asynchronous modes of operation. The converter may include one or more of a rectifier and an inverter.
摘要翻译： UPS，变频器或线路调节器中的一个或多个中的转换器的输入控制和控制的系统和方法。至少部分由纹波电压引起的失真可以从控制到转换器的输入电流的控制信号中去除。这里描述的系统和方法提供了一种简单有效的方法，用于在同步和异步操作模式期间减少或消除变换器输入电流中的一个或多个次谐波振荡和总谐波失真。转换器可以包括整流器和逆变器中的一个或多个。

8. 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。

9. 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。

10. 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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