公开(公告)号：US20100133904A1

公开(公告)日：2010-06-03

申请号：US12605514

申请日：2009-10-26

申请人： ANTHONY MICHAEL KLODOWSKI ,  DAVID SMITH ,  ROBERT GREGORY WAGONER ,  SIDNEY ALLEN BARKER

发明人： ANTHONY MICHAEL KLODOWSKI ,  DAVID SMITH ,  ROBERT GREGORY WAGONER ,  SIDNEY ALLEN BARKER

IPC分类号： H02J3/04

CPC分类号： H02M7/48 ,  H02J3/383 ,  H02M3/158 ,  H02M7/539 ,  H02M2001/0054 ,  H02M2001/007 ,  Y02B70/1491 ,  Y02E10/563 ,  Y10T307/352

摘要： Systems, methods, and apparatus for supplying AC power to an AC power grid from a DC power source, such as a photovoltaic (PV) array are disclosed. The systems and methods can include a converter coupled to the DC power source that provides DC power to a DC bus at a DC bus voltage. The systems and methods can further include an inverter coupled to the DC bus for converting the DC power of the DC bus to an output AC power. The systems and methods can further include a control system configured to regulate the DC bus voltage of the DC bus to operate at a variable DC bus voltage setpoint. The control system can adjust the DC bus voltage setpoint based at least in part on the DC bus voltage and the output AC current of the inverter.

摘要翻译： 公开了用于从DC电源（例如光伏（PV））阵列向交流电网提供AC电力的系统，方法和装置。 该系统和方法可以包括耦合到直流电源的转换器，其以直流总线电压向直流总线提供直流电力。 该系统和方法还可以包括耦合到DC总线的逆变器，用于将DC总线的DC电力转换成输出AC电力。 所述系统和方法还可以包括配置成调节DC总线的DC总线电压以在可变的DC总线电压设定点下工作的控制系统。 控制系统可以至少部分地基于直流母线电压和逆变器的输出交流电流来调节直流母线电压设定值。

公开(公告)号：US20110205773A1

公开(公告)日：2011-08-25

申请号：US12711466

申请日：2010-02-24

申请人： ROBERT GREGORY WAGONER ,  DAVID SMITH ,  ANTHONY WILLIAM GALBRAITH

发明人： ROBERT GREGORY WAGONER ,  DAVID SMITH ,  ANTHONY WILLIAM GALBRAITH

IPC分类号： H02M7/5387

CPC分类号： H02M7/48 ,  H02J3/383 ,  H02M1/36 ,  H02M3/1584 ,  H02M2001/007 ,  Y02E10/563 ,  Y10S323/906

摘要： A system for supplying AC power from a DC power source, such as a photovoltaic array is disclosed. The system includes a converter and an inverter coupled by a DC link. Control methods and systems are provided to maintain the DC source voltage and the DC link voltage below the open-circuit voltage of the DC power source. During steady state conditions, the DC source voltage and the DC link voltage are maintained below the open-circuit voltage of the DC power source by controlling the output of the inverter. The DC link voltage is temporarily adjusted to allow for higher DC link transients when the DC power source is first coupled or re-coupled to the system. During conditions when the inverter is decoupled from the system, the converter is controlled to maintain the DC link voltage below the open-circuit voltage of the DC power source.

摘要翻译： 公开了一种用于从DC电源（例如光伏阵列）提供AC电力的系统。 该系统包括一个转换器和一个通过直流链路耦合的逆变器。 提供控制方法和系统以将DC源电压和DC链路电压保持在DC电源的开路电压以下。 在稳态条件下，通过控制逆变器的输出，将直流电源电压和直流母线电压维持在直流电源的开路电压以下。 当直流电源首先耦合或重新耦合到系统时，临时调整直流母线电压以允许更高的直流链路瞬变。 在逆变器与系统分离的条件下，转换器被控制以将直流母线电压维持在直流电源的开路电压以下。

公开(公告)号：US20080304302A1

公开(公告)日：2008-12-11

申请号：US12185534

申请日：2008-08-04

申请人： ROBERT GREGORY WAGONER ,  ALLEN RITTER

发明人： ROBERT GREGORY WAGONER ,  ALLEN RITTER

IPC分类号： H02M7/5387

CPC分类号： H02M7/483 ,  H02M7/48 ,  H02M7/53871 ,  H02P23/0086 ,  H02P27/04 ,  H02P27/08 ,  H02P27/12

摘要： Systems and methods for controlling a converter for powering a load are provided. According to one embodiment of the invention, a method for powering a load is provided. A power converter may be provided. At least one gating control signal having a switching pattern may be supplied to the power converter, wherein the switching pattern has a waveform with an effective switching frequency greater than 1 times the fundamental frequency of the switching pattern and less than 2 times the fundamental frequency of the switching pattern. At least one output power signal may be output to the load responsive at least in part to the at least one gating control signal supplied.

摘要翻译： 提供了用于控制用于为负载供电的转换器的系统和方法。 根据本发明的一个实施例，提供了一种为负载供电的方法。 可以提供功率转换器。 具有开关模式的至少一个选通控制信号可以被提供给功率转换器，其中开关模式具有大于开关模式的基频的1倍的有效开关频率的波形，并且小于基频的2倍 切换模式。 至少一个输出功率信号可以至少部分地响应于所提供的至少一个门控控制信号被输出到负载。