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1. 发明授权

US09287418B2 System and method for connection of photovoltaic arrays in series and parallel arrangements 有权
标题翻译：用于连接光伏阵列串联和并联装置的系统和方法
公开(公告)号：US09287418B2
公开(公告)日：2016-03-15
申请号：US13538473
申请日：2012-06-29
申请人： Prasanna S. Nirantare , Vijay Bhavaraju , Tiefu Zhao , Jun Xu , Christopher Scott Thompson
发明人： Prasanna S. Nirantare , Vijay Bhavaraju , Tiefu Zhao , Jun Xu , Christopher Scott Thompson
IPC分类号： H02J1/00 , H02J3/00 , H01L31/02 , H02J1/10 , H01L31/05
CPC分类号： H01L31/02021 , H01L31/05 , H02J1/10 , Y02E10/50 , Y10T307/653
摘要： A system and method for selectively connecting photovoltaic (PV) arrays of a PV power system in series and parallel arrangements is disclosed. A DC-to-AC power inverter in the PV power system is electrically coupled to a plurality of PV arrays to receive a DC output therefrom and invert the DC output to an AC output, with the DC-to-AC power inverter including a DC link that receives the DC output from the plurality of PV arrays. A contactor arrangement is positioned between the plurality of PV arrays and the DC-to-AC power inverter, with the contactor arrangement including a plurality of contactors that are switchable between an on state and an off state to selectively connect the plurality of PV arrays to the DC-to-AC power inverter in a specified arrangement, so as to control a level of DC voltage received by the DC-to-AC power inverter from the plurality of PV arrays.
摘要翻译：公开了一种用于选择性连接PV电力系统的串联和并联装置的光伏（PV）阵列的系统和方法。 PV电力系统中的DC到AC电力逆变器电耦合到多个PV阵列以从其接收DC输出并将DC输出反转到AC输出，DC-AC电力逆变器包括DC 链路，其从多个PV阵列接收DC输出。接触器布置位于多个PV阵列和DC-AC电力逆变器之间，其中接触器装置包括可在导通状态和断开状态之间切换的多个接触器，以选择性地将多个PV阵列连接到 DC-AC电力逆变器，以便控制DC-AC电力逆变器从多个PV阵列接收的DC电压的电平。

2. 发明申请

US20140001864A1 SYSTEM AND METHOD FOR CONNECTION OF PHOTOVOLTAIC ARRAYS IN SERIES AND PARALLEL ARRANGEMENTS 有权
标题翻译：系列和系列中的光伏阵列连接和并行安排的系统和方法
公开(公告)号：US20140001864A1
公开(公告)日：2014-01-02
申请号：US13538473
申请日：2012-06-29
申请人： Prasanna S. Nirantare , Vijay Bhavaraju , Tiefu Zhao , Jun Xu , Christopher Scott Thompson
发明人： Prasanna S. Nirantare , Vijay Bhavaraju , Tiefu Zhao , Jun Xu , Christopher Scott Thompson
IPC分类号： H02J1/10
CPC分类号： H01L31/02021 , H01L31/05 , H02J1/10 , Y02E10/50 , Y10T307/653
摘要： A system and method for selectively connecting photovoltaic (PV) arrays of a PV power system in series and parallel arrangements is disclosed. A DC-to-AC power inverter in the PV power system is electrically coupled to a plurality of PV arrays to receive a DC output therefrom and invert the DC output to an AC output, with the DC-to-AC power inverter including a DC link that receives the DC output from the plurality of PV arrays. A contactor arrangement is positioned between the plurality of PV arrays and the DC-to-AC power inverter, with the contactor arrangement including a plurality of contactors that are switchable between an on state and an off state to selectively connect the plurality of PV arrays to the DC-to-AC power inverter in a specified arrangement, so as to control a level of DC voltage received by the DC-to-AC power inverter from the plurality of PV arrays.
摘要翻译：公开了一种用于选择性连接PV电力系统的串联和并联装置的光伏（PV）阵列的系统和方法。 PV电力系统中的DC到AC电力逆变器电耦合到多个PV阵列以从其接收DC输出并将DC输出反转到AC输出，DC-AC电力逆变器包括DC 链路，其从多个PV阵列接收DC输出。接触器布置位于多个PV阵列和DC-AC电力逆变器之间，其中接触器装置包括可在导通状态和断开状态之间切换的多个接触器，以选择性地将多个PV阵列连接到 DC-AC电力逆变器，以便控制DC-AC电力逆变器从多个PV阵列接收的DC电压的电平。

3. 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。

4. 发明申请

US20130264883A1 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故障检测和隔离方法
公开(公告)号：US20130264883A1
公开(公告)日：2013-10-10
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： H02J1/00
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。

5. 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。

6. 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。

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