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1. 发明申请

US20130301327A1 SYSTEM AND METHOD OF PARALLEL CONVERTER CURRENT SHARING 审中-公开
标题翻译：并联转换器电流共享的系统和方法
公开(公告)号：US20130301327A1
公开(公告)日：2013-11-14
申请号：US13470550
申请日：2012-05-14
申请人： Robert Gregory Wagoner , Scott Charles Frame , Chunchun Xu , Huibin Zhu
发明人： Robert Gregory Wagoner , Scott Charles Frame , Chunchun Xu , Huibin Zhu
IPC分类号： H02M7/5387
CPC分类号： H02M1/126 , H02M7/493 , H02M7/5387
摘要： In one aspect, a method of converting power is described. One embodiment of the method comprises receiving direct current (DC) power; channeling the DC power through an inverter including a first bridge and a second bridge, wherein each of the first bridge and the second bridge includes at least one switch; controlling the at least one switch of the first bridge and the at least one switch of the second bridge to convert the DC power to alternating current (AC) power; and, channeling the AC power through an inductor that includes a first winding and a second winding, wherein the first winding is coupled to an output of the first bridge and the second winding is coupled to an output of the second bridge and wherein the inductor is configured to have a first magnetic path for common mode inductance and a second magnetic path for differential mode inductance.
摘要翻译：在一个方面，描述了一种转换功率的方法。该方法的一个实施例包括接收直流（DC）功率; 通过包括第一桥和第二桥的逆变器引导DC电力，其中第一桥和第二桥中的每一个包括至少一个开关; 控制第一桥的至少一个开关和第二桥的至少一个开关以将DC电力转换为交流（AC）功率; 并且通过包括第一绕组和第二绕组的电感器引导AC电力，其中所述第一绕组耦合到所述第一桥的输出，并且所述第二绕组耦合到所述第二桥的输出，并且其中所述电感是被配置为具有用于共模电感的第一磁路和用于差模电感的第二磁路。

2. 发明申请

US20130100720A1 POWER CONVERTER SYSTEMS AND METHODS OF OPERATING A POWER CONVERTER SYSTEM 有权
标题翻译：电力转换器系统和操作电源转换器系统的方法
公开(公告)号：US20130100720A1
公开(公告)日：2013-04-25
申请号：US13279424
申请日：2011-10-24
申请人： Cornelius Edward Holliday , Huibin Zhu , Robert Gregory Wagoner
发明人： Cornelius Edward Holliday , Huibin Zhu , Robert Gregory Wagoner
IPC分类号： H02H9/04
CPC分类号： H02H9/04 , H02H3/087 , H02H9/042 , H02M3/1584 , H02M7/48 , H02M2001/007
摘要： A power converter system includes a converter, a DC link, an inverter, a damping circuit, and a control system. The converter includes an input to couple to a power generation unit and an output to provide a direct current (DC) DC power output. The DC link includes a capacitor coupled to the converter output. A voltage across the capacitor defines a DC link voltage. The inverter includes an input coupled to the DC link. The damping circuit is coupled between the converter and the inverter in parallel with the DC link capacitor. The damping circuit includes a normally closed switching device, and a resistor coupled in series with the normally closed switching device. The control system is coupled to the damping circuit and configured to control the normally closed switching device as a function of at least one operating parameter of the power converter system.
摘要翻译：电力转换器系统包括转换器，直流链路，逆变器，阻尼电路和控制系统。该转换器包括耦合到发电单元的输入端和用于提供直流（DC）DC功率输出的输出端。 DC链路包括耦合到转换器输出的电容器。电容两端的电压限定了直流母线电压。逆变器包括耦合到DC链路的输入。阻尼电路与直流链路电容器并联连接在转换器和逆变器之间。阻尼电路包括常闭开关装置和与常闭开关装置串联耦合的电阻器。控制系统耦合到阻尼电路并且被配置为根据功率转换器系统的至少一个操作参数来控制常闭的开关装置。

3. 发明授权

US08897040B2 Power converter systems and methods of operating a power converter system 有权
标题翻译：电力转换器系统和操作电力转换器系统的方法
公开(公告)号：US08897040B2
公开(公告)日：2014-11-25
申请号：US13279424
申请日：2011-10-24
申请人： Cornelius Edward Holliday , Huibin Zhu , Robert Gregory Wagoner
发明人： Cornelius Edward Holliday , Huibin Zhu , Robert Gregory Wagoner
IPC分类号： H02M5/45 , H02M5/458 , H02H7/122 , H02H9/04
CPC分类号： H02H9/04 , H02H3/087 , H02H9/042 , H02M3/1584 , H02M7/48 , H02M2001/007
摘要： A power converter system includes a converter, a DC link, an inverter, a damping circuit, and a control system. The converter includes an input to couple to a power generation unit and an output to provide a direct current (DC) DC power output. The DC link includes a capacitor coupled to the converter output. A voltage across the capacitor defines a DC link voltage. The inverter includes an input coupled to the DC link. The damping circuit is coupled between the converter and the inverter in parallel with the DC link capacitor. The damping circuit includes a normally closed switching device, and a resistor coupled in series with the normally closed switching device. The control system is coupled to the damping circuit and configured to control the normally closed switching device as a function of at least one operating parameter of the power converter system.
摘要翻译：电力转换器系统包括转换器，直流链路，逆变器，阻尼电路和控制系统。该转换器包括耦合到发电单元的输入端和用于提供直流（DC）DC功率输出的输出端。 DC链路包括耦合到转换器输出的电容器。电容两端的电压限定了直流母线电压。逆变器包括耦合到DC链路的输入。阻尼电路与直流链路电容器并联连接在转换器和逆变器之间。阻尼电路包括常闭开关装置和与常闭开关装置串联耦合的电阻器。控制系统耦合到阻尼电路并且被配置为根据功率转换器系统的至少一个操作参数来控制常闭的开关装置。

4. 发明申请

US20130279228A1 SYSTEM AND METHOD FOR IMPROVING LOW-LOAD EFFICIENCY OF HIGH POWER CONVERTERS 审中-公开
标题翻译：改进高功率转换器低负载效率的系统和方法
公开(公告)号：US20130279228A1
公开(公告)日：2013-10-24
申请号：US13453257
申请日：2012-04-23
申请人： Huibin Zhu , Robert Gregory Wagoner , David Scott Wilmer
发明人： Huibin Zhu , Robert Gregory Wagoner , David Scott Wilmer
IPC分类号： H02M7/5387
CPC分类号： H02M3/1584 , H02M1/088 , H02M7/493 , H02M2001/0032 , H02M2001/0054 , Y02B70/1491 , Y02B70/16 , Y02E10/56 , Y02E10/76
摘要： Systems and methods for improving low-load efficiency of power converters are provided. The power converter can include one or more bridge circuits having multiple switching modules, such as insulated gate bipolar transistor (IGBT) modules, connected in parallel within the same bridge circuit. The power converter is configured to convert power from an input power source, such as a photovoltaic array or a wind turbine, into output power at a grid frequency. To avoid excessive switching losses at low load conditions, the power converter can be controlled to selectively operate a subset of the switching modules within the same bridge circuit based on a load condition for the power converter. The remaining switching modules in the bridge circuit can be disabled.
摘要翻译：提供了改善功率转换器的低负载效率的系统和方法。功率转换器可以包括具有多个开关模块的一个或多个桥接电路，例如在同一桥接电路内并联连接的绝缘栅双极晶体管（IGBT）模块。功率转换器被配置为将来自诸如光伏阵列或风力涡轮机的输入电源的功率转换成电网频率的输出功率。为了在低负载条件下避免过大的开关损耗，可以基于功率转换器的负载条件来控制功率转换器以选择性地操作同一桥接电路内的开关模块的子集。桥接电路中的其余开关模块可以被禁用。

5. 发明申请

US20140056041A1 POWER GENERATION SYSTEM, POWER CONVERTER SYSTEM, AND METHODS OF OPERATING A POWER CONVERTER SYSTEM 审中-公开
标题翻译：发电系统，功率转换器系统和操作电力转换器系统的方法
公开(公告)号：US20140056041A1
公开(公告)日：2014-02-27
申请号：US14113946
申请日：2011-05-18
申请人： Huibin Zhu , David Smith , Maozhong Gong , Jun Zhu , Allen Ritter , Robert Gregory Wagoner , Anthony Galbraith , Xueqin Wu , Qiwei Zhang
发明人： Huibin Zhu , David Smith , Maozhong Gong , Jun Zhu , Allen Ritter , Robert Gregory Wagoner , Anthony Galbraith , Xueqin Wu , Qiwei Zhang
IPC分类号： H02H7/12 , H02J5/00
CPC分类号： H02H7/1203 , H02M3/1584 , H02M7/53871 , H02M2001/0003 , H02M2001/007
摘要： A power converter system includes a converter configured to be coupled to a power generation unit for receiving power from the power generation unit, and a bus coupled to the converter, wherein a voltage is generated across the bus when electricity is conducted through the power converter system. The power converter system also includes an inverter coupled to the bus, wherein the inverter is configured to supply power to an electrical distribution network. A control system is coupled to at least one of the converter and the inverter, wherein the control system is configured to adjust an operation of the at least one of the converter and the inverter to reduce the voltage across the bus during at least one of a low voltage event and a high voltage event.
摘要翻译：电力转换器系统包括被配置为耦合到用于从发电单元接收功率的发电单元的转换器和耦合到转换器的总线，其中当通过功率转换器系统进行通电时，总线上产生电压。功率转换器系统还包括耦合到总线的逆变器，其中逆变器被配置为向配电网络供电。控制系统耦合到转换器和逆变器中的至少一个，其中控制系统被配置为调整转换器和逆变器中的至少一个的操作，以在至少一个低电压事件和高电压事件。

6. 发明授权

US08270191B2 Power generation system, power converter system, and methods of converting power 有权
标题翻译：发电系统，电力转换器系统和电力转换方法
公开(公告)号：US08270191B2
公开(公告)日：2012-09-18
申请号：US12971810
申请日：2010-12-17
申请人： Huibin Zhu , Allen Ritter , Scott Charles Frame
发明人： Huibin Zhu , Allen Ritter , Scott Charles Frame
IPC分类号： H02M7/5387
CPC分类号： H02M7/5387 , H02M1/126 , H02M7/493
摘要： A power converter system includes an inverter including a first bridge and a second bridge, wherein each of the first bridge and the second bridge includes at least one switch. The power converter system also includes an inductor including a first winding coupled to an output of the first bridge and a second winding coupled to an output of the second bridge.
摘要翻译：电力转换器系统包括一个包括第一桥和第二桥的反相器，其中第一桥和第二桥中的每一个包括至少一个开关。功率转换器系统还包括电感器，其包括耦合到第一桥的输出的第一绕组和耦合到第二桥的输出的第二绕组。

7. 发明申请

US20110299311A1 Power Generation System, Power Converter System, And Methods Of Converting Power 有权
标题翻译：发电系统，电力转换系统及转换电源的方法
公开(公告)号：US20110299311A1
公开(公告)日：2011-12-08
申请号：US12971810
申请日：2010-12-17
申请人： Huibin Zhu , Allen Ritter , Scott Charles Frame
发明人： Huibin Zhu , Allen Ritter , Scott Charles Frame
IPC分类号： H02M7/5387
CPC分类号： H02M7/5387 , H02M1/126 , H02M7/493
摘要： A power converter system includes an inverter including a first bridge and a second bridge, wherein each of the first bridge and the second bridge includes at least one switch. The power converter system also includes an inductor including a first winding coupled to an output of the first bridge and a second winding coupled to an output of the second bridge.
摘要翻译：电力转换器系统包括一个包括第一桥和第二桥的反相器，其中第一桥和第二桥中的每一个包括至少一个开关。功率转换器系统还包括电感器，其包括耦合到第一桥的输出的第一绕组和耦合到第二桥的输出的第二绕组。

8. 发明申请

US20140301120A1 Systems and Methods for Use in Recovering a Converter After Grid Fault Event 有权
标题翻译：网格故障事件后恢复转换器的系统和方法
公开(公告)号：US20140301120A1
公开(公告)日：2014-10-09
申请号：US14354285
申请日：2011-10-28
申请人： Huibin Zhu , David Smith , Jun Zhu , Xueqin Wu
发明人： Huibin Zhu , David Smith , Jun Zhu , Xueqin Wu
IPC分类号： H02M1/36 , H02H7/12 , H02J3/38
CPC分类号： H02M1/36 , H02H3/066 , H02H7/06 , H02H7/12 , H02J3/38 , H02J3/383 , H02J3/40 , Y02E10/563
摘要： Systems, power modules (108), and methods (200) for using in controlling a converter (110) coupled between a power generator (104) and an electric grid (102) are provided. One of the power modules (108) includes the converter (110) configured to supply an output from the power generator (104) to the electric grid (102), and a controller (112) coupled to the converter (110). The controller (112) includes a phase-lock-loop (PLL) module (123) and at least one regulator (128, 130). The at least one regulator (128, 130) is configured to at least partially control the converter (110) as a function of at least one parameter. The controller (112) is configured to disable the converter (110) in response to a grid fault event, to maintain coupling between the power generator (104) and the converter (110) during the grid fault event, to determine whether the PLL module (123) is locked onto a voltage associated with the electric grid, to adjust the at least one parameter after the grid fault event, and to re-enable the converter to supply the output from the power generator (104) to the electric grid (102).
摘要翻译：提供了用于控制耦合在发电机（104）和电网（102）之间的转换器（110）的系统，功率模块（108）和方法（200）。功率模块（108）中的一个包括被配置为将功率发生器（104）的输出提供给电网（102）的转换器（110）和耦合到转换器（110）的控制器（112）。控制器（112）包括锁相环（PLL）模块（123）和至少一个调节器（128,130）。至少一个调节器（128,130）被配置为至少部分地根据至少一个参数来控制转换器（110）。控制器（112）被配置为响应于电网故障事件禁用转换器（110），以在电网故障事件期间保持发电机（104）和转换器（110）之间的耦合，以确定PLL模块（123）被锁定在与所述电网相关联的电压上，以在所述电网故障事件之后调整所述至少一个参数，并且重新使得所述转换器将所述发电机（104）的输出提供给所述电网（ 102）。

9. 发明申请

US20130222951A1 FAULT PROTECTION CIRCUIT FOR PHOTOVOLTAIC POWER SYSTEM 审中-公开
标题翻译：光伏电力系统故障保护电路
公开(公告)号：US20130222951A1
公开(公告)日：2013-08-29
申请号：US13406944
申请日：2012-02-28
申请人： Huibin Zhu , David Smith , Anthony William Galbraith , David Scott Wilmer
发明人： Huibin Zhu , David Smith , Anthony William Galbraith , David Scott Wilmer
IPC分类号： H02H9/00
CPC分类号： H02H3/16 , B60L3/04 , H02H3/08 , H02H7/122 , H02H9/04
摘要： A fault protection scheme for a photovoltaic power converter system is provided. According to aspects of the present disclosure, a fault protection circuit is coupled between a power converter and a ground reference. The fault protection circuit includes a fuse and a current sensor coupled in series with the fuse. A controller is configured to receive current readings from the current sensor and compare the current readings to a current threshold. The current threshold is selected to be less than the fuse current rating of the fuse. The controller identifies a fault condition if the current flowing through the ground protection circuit exceeds the current threshold value. A contactor can also be provided to temporarily lift the power converter relative to the ground reference to determine the existence of other fault paths in the system.
摘要翻译：提供了一种用于光伏功率转换器系统的故障保护方案。根据本公开的方面，故障保护电路耦合在功率转换器和接地参考之间。故障保护电路包括与保险丝串联耦合的保险丝和电流传感器。控制器被配置为从当前传感器接收电流读数并将当前读数与当前阈值进行比较。选择电流阈值小于保险丝的额定熔断器电流。如果流过接地保护电路的电流超过当前阈值，则控制器识别出故障状态。还可以提供接触器以临时提升功率转换器相对于接地参考以确定系统中其它故障路径的存在。

10. 发明公开

US20230421042A1 Multibridge Power Converter With Multiple Outputs 审中-公开
公开(公告)号：US20230421042A1
公开(公告)日：2023-12-28
申请号：US18367893
申请日：2023-09-13
申请人： Huibin Zhu , Karen Ming Zhu
发明人： Huibin Zhu , Karen Ming Zhu
IPC分类号： H02M1/00 , B60L53/22 , H02J7/06 , H02M1/42 , H02M1/44 , H02M3/335 , H02M7/797 , H02P27/08
CPC分类号： H02M1/009 , B60L53/22 , H02J7/06 , H02M1/4208 , H02M1/44 , H02M3/33561 , H02M3/33584 , H02M7/797 , H02P27/08 , H02J2207/20 , B60L2210/40
摘要： According to one aspect of the present disclosure, there is provided a power converter apparatus that includes at least two switching bridges connected to a Direct Current (DC) bus and both generating pulse-width-modulated (PWM) voltages to non-isolated outputs, and an isolation transformer having a primary winding connected across the outputs of the two switching bridges and a secondary winding connected to isolated outputs. In a non-isolated mode, the two switching bridges are configured to operate in a parallel mode, and power is transferred between the DC bus and the non-isolated outputs. In an isolated mode, the two switching bridges are configured to operate in a full bridge mode, and power is transferred between the DC bus and the isolated outputs through the transformer.

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