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1. 发明授权

US08884462B2 Power flow regulator including a plurality of DC-DC converters 有权
标题翻译：电力流量调节器包括多个DC-DC转换器
公开(公告)号：US08884462B2
公开(公告)日：2014-11-11
申请号：US13014768
申请日：2011-01-27
申请人： Yu Liu , Christopher S. Thompson , Vijay Bhavaraju
发明人： Yu Liu , Christopher S. Thompson , Vijay Bhavaraju
IPC分类号： H02J1/08 , H02J1/10
CPC分类号： H02J1/102 , H02J3/385 , Y02E10/58 , Y10T307/258 , Y10T307/469 , Y10T307/505 , Y10T307/696 , Y10T307/707
摘要： A power flow regulator includes a plurality of bi-directional DC-DC converters, each of said converters comprising a first input, a second input, a first output and a second output; and a capacitor electrically connected between the first and second inputs of each of said converters. Either the first output of each of said converters is electrically connected to a corresponding DC source and the second output of each of said converters is electrically connected to a common DC load, or the first output of each of said converters is electrically connected to a corresponding DC load and the second output of each of said converters is electrically connected to a common DC source.
摘要翻译：功率流调节器包括多个双向DC-DC转换器，每个所述转换器包括第一输入，第二输入，第一输出和第二输出; 以及电连接在每个所述转换器的第一和第二输入端之间的电容器。每个所述转换器的第一输出端电连接到对应的直流电源，并且每个所述转换器的第二输出电连接到公共直流负载，或者每个所述转换器的第一输出电连接到相应的 DC负载和每个所述转换器的第二输出电连接到公共DC源。

2. 发明授权

US08638531B2 Hybrid bi-directional DC contactor and method of controlling thereof 失效
标题翻译：混合双向直流接触器及其控制方法
公开(公告)号：US08638531B2
公开(公告)日：2014-01-28
申请号：US13325174
申请日：2011-12-14
申请人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
发明人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
IPC分类号： H02H3/00
CPC分类号： H01H47/18 , H01H47/32 , H01H50/045
摘要： A hybrid DC contactor includes contacts that provide a first current path between a DC power source and a load, an electromagnetic coil to position the contacts, a semiconductor switch in parallel with contacts that, when turned on, provides a second parallel current path that diverts current away from the contacts when the main contacts are being opened in either direction. A controller is provided to terminate power to the electromagnetic coil to open the contacts, detect an arc voltage across the contacts as the contacts open, provide a gate signal to the semiconductor switch to pulse the switch on for a pre-determined period of time to route current to the semiconductor switch, measure a current through the contacts and, if current is present through the contacts, then provide another gate signal to the semiconductor switch to pulse the switch on again so as to route current thereto.
摘要翻译：混合直流接触器包括提供直流电源和负载之间的第一电流路径的触点，用于定位触点的电磁线圈，与触点并联的半导体开关，当接通时，触点提供转移的第二并联电流路径当主触点沿任一方向打开时，电流远离触点。提供控制器以终止电磁线圈的电源以打开触点，当触点断开时检测触点两端的电弧电压，向半导体开关提供门信号以将开关脉冲以达到预定的时间段测量通过触点的电流，并且如果通过触点存在电流，则向半导体开关提供另一个栅极信号，以再次对该开关进行脉冲以将电流路由到其上。

3. 发明申请

US20130154774A1 HYBRID BI-DIRECTIONAL DC CONTACTOR AND METHOD OF CONTROLLING THEREOF 失效
标题翻译：混合双向直流接触器及其控制方法
公开(公告)号：US20130154774A1
公开(公告)日：2013-06-20
申请号：US13325174
申请日：2011-12-14
申请人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
发明人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
IPC分类号： H01H51/06
CPC分类号： H01H47/18 , H01H47/32 , H01H50/045
摘要： A hybrid DC contactor includes contacts that provide a first current path between a DC power source and a load, an electromagnetic coil to position the contacts, a semiconductor switch in parallel with contacts that, when turned on, provides a second parallel current path that diverts current away from the contacts when the main contacts are being opened in either direction. A controller is provided to terminate power to the electromagnetic coil to open the contacts, detect an arc voltage across the contacts as the contacts open, provide a gate signal to the semiconductor switch to pulse the switch on for a pre-determined period of time to route current to the semiconductor switch, measure a current through the contacts and, if current is present through the contacts, then provide another gate signal to the semiconductor switch to pulse the switch on again so as to route current thereto.
摘要翻译：混合直流接触器包括提供直流电源和负载之间的第一电流路径的触点，用于定位触点的电磁线圈，与触点并联的半导体开关，当接通时，触点提供转移的第二并联电流路径当主触点沿任一方向打开时，电流远离触点。提供控制器以终止电磁线圈的电源以打开触点，当触点断开时检测触点两端的电弧电压，向半导体开关提供门信号以将开关脉冲以达到预定的时间段测量通过触点的电流，并且如果通过触点存在电流，则向半导体开关提供另一个栅极信号，以再次对该开关进行脉冲以将电流路由到其上。

4. 发明授权

US07713157B2 Planetary gear controlled alternator 失效
标题翻译：行星齿轮控制交流发电机
公开(公告)号：US07713157B2
公开(公告)日：2010-05-11
申请号：US11776211
申请日：2007-07-11
申请人： Jerome Kenneth Hastings , Roger James Briggs , Vijay Bhavaraju
发明人： Jerome Kenneth Hastings , Roger James Briggs , Vijay Bhavaraju
IPC分类号： F16H3/72 , F16H37/06 , H02K7/10 , H02K7/18 , H02K23/52 , F02B63/04 , H02P9/04
CPC分类号： H02K7/116
摘要： An alternator system includes an input shaft, a planetary gear assembly, a variable resistance generator, and a control unit. The alternator assembly is structured to produce an output current having a frequency. The planetary gear assembly disposed between, and operatively coupled to, the input shaft and the alternator assembly. The planetary gear assembly has a planet gear carrier body with an outer radial surface having teeth. The variable resistance generator has an external generator shaft with a generator gear. The generator gear is structured to engage the outer radial surface teeth. The control unit structured to detect the frequency of the alternator assembly output current and to alter the resistance of the generator. The control unit is structured to maintain the frequency of the alternator assembly output current within a selected range by increasing or decreasing the resistance of the generator.
摘要翻译：交流发电机系统包括输入轴，行星齿轮组件，可变电阻发生器和控制单元。交流发电机组件被构造成产生具有频率的输出电流。行星齿轮组件设置在输入轴和交流发电机组件之间并且可操作地联接到输入轴和交流发电机组件上行星齿轮组件具有行星齿轮承载体，其外径向表面具有齿。可变电阻发生器具有带发电机齿轮的外部发电机轴。发电机齿轮构造成接合外径向表面齿。该控制单元构造成检测交流发电机组件输出电流的频率并改变发电机的电阻。控制单元被构造成通过增加或减小发电机的电阻将交流发电机组件的输出电流的频率保持在选定范围内。

5. 发明申请

US20090015212A1 PLANETARY GEAR CONTROLLED ALTERNATOR 失效
标题翻译：行星齿轮控制器
公开(公告)号：US20090015212A1
公开(公告)日：2009-01-15
申请号：US11776211
申请日：2007-07-11
申请人： JEROME KENNETH HASTINGS , Roger James Briggs , Vijay Bhavaraju
发明人： JEROME KENNETH HASTINGS , Roger James Briggs , Vijay Bhavaraju
IPC分类号： F16H47/08 , H02K7/18
CPC分类号： H02K7/116
摘要： An alternator system includes an input shaft, a planetary gear assembly, a variable resistance generator, and a control unit. The alternator assembly is structured to produce an output current having a frequency. The planetary gear assembly disposed between, and operatively coupled to, the input shaft and the alternator assembly. The planetary gear assembly has a planet gear carrier body with an outer radial surface having teeth. The variable resistance generator has an external generator shaft with a generator gear. The generator gear is structured to engage the outer radial surface teeth. The control unit structured to detect the frequency of the alternator assembly output current and to alter the resistance of the generator. The control unit is structured to maintain the frequency of the alternator assembly output current within a selected range by increasing or decreasing the resistance of the generator.
摘要翻译：交流发电机系统包括输入轴，行星齿轮组件，可变电阻发生器和控制单元。交流发电机组件被构造成产生具有频率的输出电流。行星齿轮组件设置在输入轴和交流发电机组件之间并且可操作地联接到输入轴和交流发电机组件上行星齿轮组件具有行星齿轮承载体，其外径向表面具有齿。可变电阻发生器具有带发电机齿轮的外部发电机轴。发电机齿轮构造成接合外径向表面齿。该控制单元构造成检测交流发电机组件输出电流的频率并改变发电机的电阻。控制单元被构造成通过增加或减小发电机的电阻将交流发电机组件的输出电流的频率保持在选定范围内。

6. 发明申请

US20050105306A1 Power converter system 有权
标题翻译：电源转换器系统
公开(公告)号：US20050105306A1
公开(公告)日：2005-05-19
申请号：US10713767
申请日：2003-11-14
申请人： Duo Deng , Vijay Bhavaraju
发明人： Duo Deng , Vijay Bhavaraju
IPC分类号： H02J3/38 , H02M5/458 , H02M7/797 , H02M5/45
CPC分类号： H02J3/383 , H02J3/387 , H02M5/4585 , H02M7/797 , Y02B10/14 , Y02E10/563
摘要： A power converter system advantageously employs a modular, bi-directionally symmetrical power converter assembly in a readily customizable configuration to interconnect a direct current power source to a three-phase alternating power grid. Connections external to the power converter assembly are selected to optimize the power converter system for a specific application, such as interconnecting a photovoltaic array to the three-phase electrical power grid. The electrical interconnections of various elements including isolation transformers, voltage sensors, and control switches are optimized to improve efficiency and reliability.
摘要翻译：功率转换器系统有利地采用模块化的双向对称功率转换器组件，其易于定制的配置将直流电源互连到三相交流电网。选择电力转换器组件外部的连接以优化用于特定应用的功率转换器系统，例如将光伏阵列互连到三相电力电网。优化了包括隔离变压器，电压传感器和控制开关在内的各种元件的电气互连，以提高效率和可靠性。

7. 发明授权

US06178103B1 Method and circuit for synchronizing parallel voltage source inverters 有权
标题翻译：用于同步并联电压源逆变器的方法和电路
公开(公告)号：US06178103B1
公开(公告)日：2001-01-23
申请号：US09567965
申请日：2000-05-10
申请人： Doug D. Deng , Kon-King Mike Wang , Vijay Bhavaraju
发明人： Doug D. Deng , Kon-King Mike Wang , Vijay Bhavaraju
IPC分类号： H02M700
CPC分类号： H02M7/493
摘要： An inverter circuit (10) has a plurality of voltage source inverters (VSI) coupled in parallel. Each of the voltage source inverters are coupled to a load (14). A synch signal source (12) generates a square wave from a fundamental operating frequency. The square wave generated by the synch signal source (12) is coupled to each voltage source inverter (VSI). Each voltage source inverter VSI has a timer counter (22), a microprocessor (26), and an inverter (32). The timer counter (22) is preferably a triangle wave generator that corresponds to the time since a rising edge of a synch signal (18) The microprocessor (26) samples the cyclic output signal (24) and determines a phase angle for the voltage source inverter. The phase angle and the voltage magnitude are provided to the inverter (32). The inverter (32) provides an output signal to the load that has the same phase angle as the outputs of the other phase inverters.
摘要翻译：逆变器电路（10）具有并联耦合的多个电压源逆变器（VSI）。每个电压源逆变器耦合到负载（14）。同步信号源（12）从基本工作频率产生方波。由同步信号源（12）产生的方波耦合到每个电压源逆变器（VSI）。每个电压源逆变器VSI具有定时器计数器（22），微处理器（26）和逆变器（32）。定时器计数器（22）优选地是对应于从同步信号（18）的上升沿起的时间的三角波发生器。微处理器（26）对循环输出信号（24）进行采样并确定电压源的相位角逆变器。相位角和电压大小提供给逆变器（32）。逆变器（32）向负载提供与其它相位逆变器的输出具有相同相位角的输出信号。

8. 发明授权

US08837097B2 Protection, monitoring or indication apparatus for a direct current electrical generating apparatus or a plurality of strings 有权
标题翻译：用于直流发电装置或多个串的保护，监视或指示装置
公开(公告)号：US08837097B2
公开(公告)日：2014-09-16
申请号：US12795032
申请日：2010-06-07
申请人： Joseph C. Zuercher , Birger Pahl , Charles J. Luebke , Brian Thomas Pier , Jerome K. Hastings , Vijay Bhavaraju
发明人： Joseph C. Zuercher , Birger Pahl , Charles J. Luebke , Brian Thomas Pier , Jerome K. Hastings , Vijay Bhavaraju
IPC分类号： G06F1/28 , H01L31/02 , H02H7/20 , H02H3/04
CPC分类号： H02H7/20 , H01L31/02021 , H02H3/04 , H02H7/10 , Y02E10/56
摘要： A protection apparatus is for a direct current electrical generating apparatus. The protection apparatus includes a first terminal; a second terminal; a third terminal; a fourth terminal; at least one current sensor structured to sense current flowing between the first and second terminals or between the third and fourth terminals; a voltage sensor structured to sense a voltage between the first terminal and the third terminal; at least one switch structured to interrupt the current flowing between the first and second terminals or between the third and fourth terminals; and a processor cooperating with the at least one current sensor, the voltage sensor and the at least one switch, and being structured to provide feed forward fault protection for the direct current electrical generating apparatus.
摘要翻译：保护装置用于直流发电装置。保护装置包括：第一终端; 第二个终端第三个终端; 第四个终端; 至少一个电流传感器，其被构造为感测在所述第一和第二端子之间或所述第三和第四端子之间流动的电流; 电压传感器，被构造为感测第一端子和第三端子之间的电压; 至少一个开关，被构造成中断在第一和第二端子之间或第三和第四端子之间流动的电流; 以及处理器，其与所述至少一个电流传感器，所述电压传感器和所述至少一个开关配合，并被构造成为所述直流发电设备提供前馈故障保护。

9. 发明申请

US20140084817A1 METHOD OF ENERGY AND POWER MANAGEMENT IN DYNAMIC POWER SYSTEMS WITH ULTRA-CAPACITORS (SUPER CAPACITORS) 审中-公开
标题翻译：具有超级电容器（超级电容器）的动力系统中的能量和功率管理方法
公开(公告)号：US20140084817A1
公开(公告)日：2014-03-27
申请号：US13984084
申请日：2011-07-20
申请人： Vijay Bhavaraju , Yakov L. Familiant , Steven C. Schmalz
发明人： Vijay Bhavaraju , Yakov L. Familiant , Steven C. Schmalz
IPC分类号： H02J1/10 , H02P3/14 , H02P6/00
CPC分类号： H02J1/102 , B60L50/40 , B64D2221/00 , H02P3/14 , H02P6/34 , Y02T10/7022 , Y02T50/54 , Y10T307/516
摘要： A power management system includes an ultracapacitor and a charge shuttle including a power converter. The charge shuttle may be coupled with the ultracapacitor and may be configured to be coupled with a load. The charge shuttle can be configured to monitor one or more parameters of the load and the ultracapacitor, and to control energy flow between the load and the ultracapacitor based on or according to monitored parameters. The system may also include a battery or other rechargeable energy storage element.
摘要翻译：电源管理系统包括超级电容器和包括功率转换器的充电梭。电荷穿梭可以与超级电容器耦合，并且可以被配置为与负载耦合。充电梭可配置为监测负载和超级电容器的一个或多个参数，并根据监控的参数控制负载和超级电容器之间的能量流动。该系统还可以包括电池或其他可再充电能量存储元件。

10. 发明授权

US08587906B2 Photovotaic system including hybrid bi-directional DC contactors and method of detection and isolation of faults therein 失效
标题翻译：包括混合双向直流接触器的光伏系统及其中的故障的检测和隔离方法
公开(公告)号：US08587906B2
公开(公告)日：2013-11-19
申请号：US13440275
申请日：2012-04-05
申请人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
发明人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
IPC分类号： H02H3/00
CPC分类号： H02J3/383 , H01L31/02021 , Y02E10/563 , Y10T307/696
摘要： A photovoltaic (PV) power system is disclosed that includes hybrid DC contactors corresponding to each of a plurality of PV strings, with each hybrid DC contactor having main contacts, a solid state switching unit positioned in parallel with the main contacts, and sensors configured to measure a voltage and current on respective PV strings. A controller is provided in the PV power system that is configured to receive voltage and current data on the PV strings, detect a fault condition on a respective PV string based on the voltage and current data, cause the main contacts of a respective hybrid DC contactor to remain closed on each PV string for which a fault condition is detected, and cause the main contacts of a respective hybrid DC contactor to open on each PV string for which no fault condition is detected, so as to clear the fault condition.
摘要翻译：公开了一种光伏（PV）电力系统，其包括对应于多个PV串中的每一个的混合DC接触器，每个混合DC接触器具有主触点，与主触点平行定位的固态开关单元，以及被配置为测量各个PV串上的电压和电流。在PV电力系统中设置有一个控制器，其被配置为接收PV串上的电压和电流数据，基于电压和电流数据检测相应PV串上的故障状况，导致相应的混合DC接触器的主触点在检测到故障条件的每个PV串上保持闭合，并且使得各个混合DC接触器的主触点在没有检测到故障状态的每个PV串上打开，以便清除故障状况。

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