-
1.发明授权公开(公告)号：US09608440B2
公开(公告)日：2017-03-28
申请号：US13291642
申请日：2011-11-08
CPC分类号： H02J3/00 , G01R19/2513 , G01R31/086 , H02J9/062 , H02J2003/007 , Y02E60/76 , Y04S40/22
摘要： A disturbance, for example, a frequency variation, is generated in at least a portion of the power distribution network. The disturbance may be generated, for example, by an uninterruptible power supply (UPS) or some other component of the power distribution network, such as a switch. At least one node of the network experiencing the disturbance is identified and a topology of the power distribution network is determined responsive to identifying the at least one node. The at least one node may be identified by detecting a voltage-related artifact corresponding to the disturbance. A phase-locked loop (PLL)—based circuit may be used for fast artifact detection. Groups of devices in the network may be identified from the artifacts, and combinatorial optimization techniques may be used to determine connectivity within such groups.
-
2.发明申请SYSTEM AND METHOD FOR GROUND FAULT DETECTION AND PROTECTION IN ADJUSTABLE SPEED DRIVES 有权用于地面故障检测和可调节速度驱动器中的保护的系统和方法公开(公告)号：US20130293988A1
公开(公告)日：2013-11-07
申请号：US13464014
申请日：2012-05-04
IPC分类号： H02H7/08
CPC分类号： H02H3/165 , H02H7/1227 , H02P29/0241 , H02P29/027
摘要： A system and method for detecting ground faults in an AC motor drive is disclosed. A fault detection and protection system for an AC motor drive includes current sensors to measure first and second phase output currents, a voltage sensor to measure a DC link voltage, and a desaturation control circuit to determine a voltage and associated current across PWM inverter switches for a third phase of the output. A controller compares the first and second phase currents, the measured DC link voltage, and the voltage across the PWM inverter switches on the third phase, to a plurality of thresholds. The controller detects a ground fault on one of the first, second, and third phases of the three phase output to the AC motor based on the comparisons of the first and the second phase currents, the DC link voltage, and the voltage across the switches to the thresholds.
摘要翻译： 公开了一种用于检测交流电动机驱动器中的接地故障的系统和方法。 用于AC电动机驱动器的故障检测和保护系统包括用于测量第一和第二相输出电流的电流传感器，用于测量DC链路电压的电压传感器，以及去饱和控制电路，用于确定PWM逆变器开关上的电压和相关电流 第三阶段的输出。 控制器将第一相和第二相电流，所测量的直流链路电压以及第三相上的PWM逆变器开关上的电压相比较，以达到多个阈值。 控制器基于第一和第二相电流，直流链路电压和开关两端的电压的比较，检测到三相输出到交流电动机的第一相，第二相和第三相中的一个接地故障 到阈值。
-
公开(公告)号：US09166469B2
公开(公告)日：2015-10-20
申请号：US13597552
申请日：2012-08-29
申请人： Yakov Lvovich Familiant , Huaqiang Li , Xiaoling Li , Leo Sun
发明人： Yakov Lvovich Familiant , Huaqiang Li , Xiaoling Li , Leo Sun
摘要： A system for optimizing switching dead-time includes a power converter that includes a half-bridge circuit comprising a first switch coupled in series with a second switch, first and second state detection circuits respectively coupled to the first and second switches and configured to respectively detect an activation state of the first and second switches. First and second switch control circuits coupled respectively to the first and second switches are configured to respectively toggle the first and second switches between an activate state and a deactivated state. The first switch control circuit includes a first input configured to receive an activation signal from the second state detection circuit indicative of the activation state of the second switch, and the second switch control circuit includes a first input configured to receive an activation signal from the first state detection circuit indicative of the activation state of the first switch.
摘要翻译： 用于优化切换死区时间的系统包括功率转换器，其包括半桥电路，该半桥电路包括与第二开关串联耦合的第一开关，第一和第二状态检测电路，分别耦合到第一和第二开关，并且被配置为分别检测 第一和第二开关的激活状态。 分别耦合到第一和第二开关的第一和第二开关控制电路被配置为分别在激活状态和去激活状态之间切换第一和第二开关。 第一开关控制电路包括被配置为从第二状态检测电路接收指示第二开关的启动状态的激活信号的第一输入，并且第二开关控制电路包括被配置为从第一开关接收激活信号的第一输入 指示第一开关的激活状态的状态检测电路。
-
公开(公告)号：US20140063883A1
公开(公告)日：2014-03-06
申请号：US13597552
申请日：2012-08-29
申请人： Yakov Lvovich Familiant , Huaqiang Li , Xiaoling Li , Leo Sun
发明人： Yakov Lvovich Familiant , Huaqiang Li , Xiaoling Li , Leo Sun
IPC分类号： H02M7/537
摘要： A system for optimizing switching dead-time includes a power converter that includes a half-bridge circuit comprising a first switch coupled in series with a second switch, first and second state detection circuits respectively coupled to the first and second switches and configured to respectively detect an activation state of the first and second switches. First and second switch control circuits coupled respectively to the first and second switches are configured to respectively toggle the first and second switches between an activate state and a deactivated state. The first switch control circuit includes a first input configured to receive an activation signal from the second state detection circuit indicative of the activation state of the second switch, and the second switch control circuit includes a first input configured to receive an activation signal from the first state detection circuit indicative of the activation state of the first switch.
摘要翻译： 用于优化切换死区时间的系统包括功率转换器，其包括半桥电路，该半桥电路包括与第二开关串联耦合的第一开关，第一和第二状态检测电路，分别耦合到第一和第二开关，并且被配置为分别检测 第一和第二开关的激活状态。 分别耦合到第一和第二开关的第一和第二开关控制电路被配置为分别在激活状态和去激活状态之间切换第一和第二开关。 第一开关控制电路包括被配置为从第二状态检测电路接收指示第二开关的启动状态的激活信号的第一输入，并且第二开关控制电路包括被配置为从第一开关接收激活信号的第一输入 指示第一开关的激活状态的状态检测电路。
-
5.发明申请METHODS AND APPARATUS FOR DETERMINING POWER DISTRIBUTION SYSTEM TOPOLOGY USING DISTURBANCE DETECTION 有权使用干扰检测来确定功率分配系统拓扑的方法和装置公开(公告)号：US20130116946A1
公开(公告)日：2013-05-09
申请号：US13291642
申请日：2011-11-08
IPC分类号： G01R31/08
CPC分类号： H02J3/00 , G01R19/2513 , G01R31/086 , H02J9/062 , H02J2003/007 , Y02E60/76 , Y04S40/22
摘要： A disturbance, for example, a frequency variation, is generated in at least a portion of the power distribution network. The disturbance may be generated, for example, by an uninterruptible power supply (UPS) or some other component of the power distribution network, such as a switch. At least one node of the network experiencing the disturbance is identified and a topology of the power distribution network is determined responsive to identifying the at least one node. The at least one node may be identified by detecting a voltage-related artifact corresponding to the disturbance. A phase-locked loop (PLL)—based circuit may be used for fast artifact detection. Groups of devices in the network may be identified from the artifacts, and combinatorial optimization techniques may be used to determine connectivity within such groups.
摘要翻译： 在配电网络的至少一部分中产生干扰，例如频率变化。 干扰可以例如由不间断电源（UPS）或诸如开关的配电网络的其他部件产生。 识别遇到干扰的网络的至少一个节点，并且响应于识别至少一个节点确定配电网络的拓扑。 可以通过检测与扰动相对应的电压相关伪像来识别至少一个节点。 基于锁相环（PLL）的电路可用于快速伪影检测。 可以从伪像识别网络中的设备组，并且可以使用组合优化技术来确定这些组内的连接性。
-
6.发明申请COMMUNICATIONS DISTRIBUTION SYSTEMS, APPARATUS AND METHODS USING POWER LINE CARRIER COMMUNICATIONS 审中-公开通信分配系统，使用电力线载波通信的装置和方法公开(公告)号：US20120275084A1
公开(公告)日：2012-11-01
申请号：US13098037
申请日：2011-04-29
IPC分类号： H02B1/00
CPC分类号： H04B3/54 , G06F1/266 , H04B2203/5441 , H04B2203/5445 , H04B2203/5454 , H04B2203/5458
摘要： A sensor communications distribution system for a data center or other distributed electronic installation includes a plurality of communications distribution units mounted in a plurality of equipment racks. Each of the communications distribution units comprising a frame configured to be mounted in an equipment rack, a power bus supported by the frame and coupled to a power distribution network and a power line carrier communications interface circuit coupled to the power bus and to a plurality of external sensors (e.g., via connectors and/or wirelessly). Power may be provided to the sensors and/or to equipment in the racks from the communications distribution units.
摘要翻译： 用于数据中心或其他分布式电子设备的传感器通信分配系统包括安装在多个设备机架中的多个通信分配单元。 每个通信分配单元包括被配置为安装在设备机架中的框架，由框架支撑并耦合到配电网络的电力总线和耦合到电力总线的电力线载波通信接口电路以及多个 外部传感器（例如，通过连接器和/或无线）。 可以向通信分配单元中的传感器和/或机架中的设备提供功率。
-
7.发明授权System and method for ground fault detection and protection in adjustable speed drives 有权可调速驱动器中接地故障检测和保护的系统和方法公开(公告)号：US09160161B2
公开(公告)日：2015-10-13
申请号：US13464014
申请日：2012-05-04
CPC分类号： H02H3/165 , H02H7/1227 , H02P29/0241 , H02P29/027
摘要： A system and method for detecting ground faults in an AC motor drive is disclosed. A fault detection and protection system for an AC motor drive includes current sensors to measure first and second phase output currents, a voltage sensor to measure a DC link voltage, and a desaturation control circuit to determine a voltage and associated current across PWM inverter switches for a third phase of the output. A controller compares the first and second phase currents, the measured DC link voltage, and the voltage across the PWM inverter switches on the third phase, to a plurality of thresholds. The controller detects a ground fault on one of the first, second, and third phases of the three phase output to the AC motor based on the comparisons of the first and the second phase currents, the DC link voltage, and the voltage across the switches to the thresholds.
摘要翻译： 公开了一种用于检测交流电动机驱动器中的接地故障的系统和方法。 用于AC电动机驱动器的故障检测和保护系统包括用于测量第一和第二相输出电流的电流传感器，用于测量DC链路电压的电压传感器，以及去饱和控制电路，用于确定PWM逆变器开关上的电压和相关电流 第三阶段的输出。 控制器将第一相和第二相电流，所测量的直流链路电压以及第三相上的PWM逆变器开关上的电压相比较，以达到多个阈值。 控制器基于第一和第二相电流，直流链路电压和开关两端的电压的比较，检测到三相输出到交流电动机的第一相，第二相和第三相中的一个接地故障 到阈值。
-
8.发明授权Data processing system power distribution using UPS units selectively coupled to loads by reserve bus based on the load states 有权使用UPS单元的数据处理系统配电，其基于负载状态通过备用总线选择性地耦合到负载公开(公告)号：US08850237B2
公开(公告)日：2014-09-30
申请号：US13244386
申请日：2011-09-24
摘要： Some embodiments of the inventive subject matter provide a power distribution system for a data processing system. The power distribution system includes a plurality of uninterruptible power supply (UPS) units, respective ones of which are configured to be coupled to respective loads via respective load busses, at least one reserve bus, a switching circuit configured to selectively couple and decouple the UPS units and the load busses to and from the at least one reserve bus and a control circuit configured to control the switching circuit responsive to a state of the data processing system. The control circuit may be configured to cause the switching circuit to couple the first UPS unit to the at least one reserve bus concurrent with the first UPS unit being coupled to a first load via a first load bus.
摘要翻译： 本发明的一些实施例提供了一种用于数据处理系统的配电系统。 配电系统包括多个不间断电源（UPS）单元，其中各个被配置为经由相应的负载总线耦合到相应的负载，至少一个备用总线，配置成选择性地耦合和解耦UPS 单元和负载总线到达和来自至少一个备用总线，以及控制电路，被配置为响应于数据处理系统的状态来控制开关电路。 控制电路可以被配置为使得开关电路将第一UPS单元耦合到至少一个备用总线，同时第一UPS单元经由第一负载总线耦合到第一负载。
-
公开(公告)号：US20130080793A1
公开(公告)日：2013-03-28
申请号：US13244386
申请日：2011-09-24
IPC分类号： G06F1/26
摘要： Some embodiments of the inventive subject matter provide a power distribution system for a data processing system. The power distribution system includes a plurality of uninterruptible power supply (UPS) units, respective ones of which are configured to be coupled to respective loads via respective load busses, at least one reserve bus, a switching circuit configured to selectively couple and decouple the UPS units and the load busses to and from the at least one reserve bus and a control circuit configured to control the switching circuit responsive to a state of the data processing system. The control circuit may be configured to cause the switching circuit to couple the first UPS unit to the at least one reserve bus concurrent with the first UPS unit being coupled to a first load via a first load bus.
摘要翻译： 本发明的一些实施例提供了一种用于数据处理系统的配电系统。 配电系统包括多个不间断电源（UPS）单元，其中各个被配置为经由相应的负载总线耦合到相应的负载，至少一个备用总线，配置成选择性地耦合和解耦UPS 单元和负载总线到达和来自至少一个备用总线，以及控制电路，被配置为响应于数据处理系统的状态来控制开关电路。 控制电路可以被配置为使得开关电路将第一UPS单元耦合到至少一个备用总线，同时第一UPS单元经由第一负载总线耦合到第一负载。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.014 秒)
