公开(公告)号：US09229468B2

公开(公告)日：2016-01-05

申请号：US14055314

申请日：2013-10-16

申请人： ABB Oy

发明人： Tuomas Pulli ,  Janne Hellberg

IPC分类号： G05F1/67 ,  G05F5/00 ,  H02J7/35

CPC分类号： G05F5/00 ,  G05F1/67 ,  H02J3/385 ,  Y02E10/58

摘要： A method and an arrangement of tracking a selected (e.g., maximum) power point of a photovoltaic system is disclosed, in which method an operation point of the photovoltaic system is changed based on the change of operation point and a change of power generated by the photovoltaic system. The method can include repeatedly determining a current or voltage of the photovoltaic system, determining a power of the photovoltaic system, determining a change of power of the photovoltaic system with respect to a previous determined power, and changing the operation point of the photovoltaic system by changing a current or voltage reference of the system stepwise depending on the change of power and a direction of a previous change of the current or voltage reference.

摘要翻译： 公开了一种跟踪光伏系统的选定（例如，最大）功率点的方法和装置，其中光伏系统的操作点基于操作点的改变和由 光伏系统。 该方法可以包括重复地确定光伏系统的电流或电压，确定光伏系统的功率，确定光伏系统相对于先前确定的功率的功率变化，以及通过以下方式改变光伏系统的工作点 根据功率的变化和电流或电压基准的先前变化的方向逐步改变系统的电流或电压基准。

公开(公告)号：US20150370277A1

公开(公告)日：2015-12-24

申请号：US14313604

申请日：2014-06-24

申请人： Woodward, Inc.

发明人： Tena K. Britt

IPC分类号： G05F1/67 ,  G05B15/02

CPC分类号： G05F1/67 ,  F02C9/00 ,  G05B11/42 ,  G05B13/024 ,  G05B15/02 ,  G05B19/048 ,  G05B2219/2619

摘要： The subject matter of this specification can be embodied in, among other things, a method that includes providing a process controller configured to perform a control algorithm based on at least one first control parameter, providing a parameter controller configured to perform a parameter adjustment algorithm, providing a turbine having an output sensor, providing to the process controller at least one first control parameter and a first input value, controlling the turbine based on the at least one first control parameter and the first input value, receiving a turbine response value provided by the turbine output sensor, determining at least one second control parameter based on the turbine response value and the parameter adjustment algorithm, providing, to the process controller from the parameter controller, the at least one second control parameter, and controlling the turbine based on the at the least one second control parameter and a second input value.

摘要翻译： 本说明书的主题可以包括提供一种过程控制器，其被配置为基于至少一个第一控制参数执行控制算法，提供被配置为执行参数调整算法的参数控制器， 提供具有输出传感器的涡轮机，向所述过程控制器提供至少一个第一控制参数和第一输入值，基于所述至少一个第一控制参数和所述第一输入值来控制所述涡轮机，接收由所述至少一个第一控制参数和所述第一输入值接收由 涡轮机输出传感器，基于涡轮机响应值和参数调整算法来确定至少一个第二控制参数，从参数控制器向过程控制器提供至少一个第二控制参数，以及基于 在至少一个第二控制参数和第二输入值。

公开(公告)号：US09146575B2

公开(公告)日：2015-09-29

申请号：US13798562

申请日：2013-03-13

申请人： uPI Semiconductor Corporation

发明人： Chien-Yuan Shen

IPC分类号： G05F1/67 ,  G05F5/00 ,  H02M3/155 ,  H02M1/00

CPC分类号： G05F5/00 ,  H02M3/155 ,  H02M2001/0022

摘要： A power converter and an operating method therefore are disclosed. The power converter includes an output stage, an input voltage detecting unit, and a pulse width modulation (PWM) unit. The output stage is coupled between an input terminal and a ground terminal. The input voltage detecting unit is used to detect an input voltage. The PWM unit is coupled to the output stage and the input voltage detecting unit and used to provide a PWM signal to the output stage. The PWM unit adjusts an on-time of a switch conducting signal of the PWM signal according to the input voltage and a default voltage. When the input voltage is lower than the default voltage, the PWM unit increases the on-time of the switch conducting signal and a period of the PWM signal.

摘要翻译： 因此公开了功率转换器和操作方法。 功率转换器包括输出级，输入电压检测单元和脉冲宽度调制（PWM）单元。 输出级耦合在输入端和接地端之间。 输入电压检测单元用于检测输入电压。 PWM单元耦合到输出级和输入电压检测单元，用于向输出级提供PWM信号。 PWM单元根据输入电压和默认电压调整PWM信号的开关导通信号的导通时间。 当输入电压低于默认电压时，PWM单元增加开关导通信号的导通时间和PWM信号的周期。

公开(公告)号：US09141123B2

公开(公告)日：2015-09-22

申请号：US13653381

申请日：2012-10-16

申请人： Volterra Semiconductor Corporation

发明人： Michael D. McJimsey ,  Anthony J. Stratakos ,  Ilija Jergovic ,  Xin Zhang ,  Kaiwei Yao ,  Vincent W. Ng ,  Phong T. Nguyen ,  Artin Der Minassians

IPC分类号： G05F1/00 ,  G05F1/67 ,  H03K3/356 ,  H02J3/38

CPC分类号： H02M3/158 ,  G01R21/06 ,  G05F1/67 ,  H02J3/385 ,  H03K3/356165 ,  Y02E10/58

摘要： A maximum power point tracking controller includes an input port for electrically coupling to an electric power source, an output port for electrically coupling to a load, a control switching device, and a control subsystem. The control switching device is adapted to repeatedly switch between its conductive and non-conductive states to transfer power from the input port to the output port. The control subsystem is adapted to control switching of the control switching device to regulate a voltage across the input port, based at least in part on a signal representing current flowing out of the output port, to maximize a signal representing power out of the output port.

摘要翻译： 最大功率点跟踪控制器包括用于电耦合到电源的输入端口，用于电耦合到负载的输出端口，控制切换装置和控制子系统。 控制切换装置适于在其导电状态和非导通状态之间重复切换，以将功率从输入端口传送到输出端口。 控制子系统至少部分地基于表示从输出端口流出的电流的信号来控制控制切换装置的切换以调节输入端口上的电压，以最大化表示从输出端口输出的电力的信号 。

公开(公告)号：US09128506B2

公开(公告)日：2015-09-08

申请号：US13600531

申请日：2012-08-31

申请人： Kuo-Sen Kung ,  Chun-Hao Tu ,  Ren-Hong Jhan ,  Wei-Cheng Wu ,  Ya-Zhi Hsiao ,  Ting-Chun Lin ,  Jen-Pei Tseng ,  Yu-Jung Liu ,  Jiun-Jye Chang

发明人： Kuo-Sen Kung ,  Chun-Hao Tu ,  Ren-Hong Jhan ,  Wei-Cheng Wu ,  Ya-Zhi Hsiao ,  Ting-Chun Lin ,  Jen-Pei Tseng ,  Yu-Jung Liu ,  Jiun-Jye Chang

IPC分类号： G05F5/00 ,  G05F1/67

CPC分类号： G05F1/67

摘要： A power tracking device and a power tracking method is disclosed herein. The power tracking device includes a power voltage setting circuit, a switch, a switching signal circuit, and a voltage memory circuit. The switching signal circuit is configured for sending a first control signal to the switch. When the switch receives the first control signal and electrically isolates the power source and the power voltage setting circuit, the voltage memory circuit stores an open circuit voltage of the power source and sends a setting voltage relative to the open circuit voltage, and when the switch receives the first control signal and electrically connects the power source and the power voltage setting circuit, the power voltage setting circuit sets an output voltage of the power source to correspond with the setting voltage.

摘要翻译： 本文公开了功率跟踪装置和功率跟踪方法。 功率跟踪装置包括电源电压设定电路，开关，开关信号电路和电压存储电路。 开关信号电路被配置为向开关发送第一控制信号。 当开关接收到第一控制信号并且电隔离电源和电源电压设置电路时，电压存储电路存储电源的开路电压并发送相对于开路电压的设定电压，并且当开关 接收第一控制信号并电连接电源和电源电压设定电路，电源电压设定电路将电源的输出电压设定为与设定电压对应。

公开(公告)号：US20150160676A1

公开(公告)日：2015-06-11

申请号：US14562429

申请日：2014-12-05

申请人： Shangzhi PAN ,  Majid PAHLEVANINEZHAD ,  Praveen JAIN

发明人： Shangzhi PAN ,  Majid PAHLEVANINEZHAD ,  Praveen JAIN

IPC分类号： G05F1/67 ,  H02M7/5387 ,  H02M3/335

CPC分类号： G05F1/67 ,  H02J3/385 ,  H02M3/3376 ,  Y02E10/58 ,  Y10T307/707

摘要： Systems, methods, and devices relating to the use of multiple DC power generation sources with DC/DC converters to thereby provide AC power suitable for provision to a power grid. Multiple DC power generation sources are each coupled to an input stage with a DC/DC converter. All the DC/DC converters in the multiple input stages are controlled by a single digital controller. Within the single digital controller are controller sub-blocks, each of which generates control signals for a specific DC/DC converter. Each controller sub-block provides multiple functions for improving the performance of the system as a whole.

摘要翻译： 与使用具有DC / DC转换器的多个DC发电源相关的系统，方法和装置，从而提供适于提供给电网的AC电力。 多个DC发电源各自与DC / DC转换器耦合到输入级。 多个输入级的所有DC / DC转换器由单个数字控制器控制。 在单个数字控制器内是控制器子块，每个控制器子块产生特定DC / DC转换器的控制信号。 每个控制器子块提供了多个功能来提高整个系统的性能。

公开(公告)号：US20150137607A1

公开(公告)日：2015-05-21

申请号：US14407890

申请日：2013-06-10

申请人： Indian Institute of Technology Bombay

发明人： Vivek Agarwal ,  Pradeep Kuruvilla Peter

IPC分类号： G05F1/67 ,  H02M3/156 ,  H02J1/00

CPC分类号： G05F1/67 ,  H02J1/00 ,  H02J3/383 ,  H02M3/07 ,  H02M3/156 ,  Y02E10/563 ,  Y02E10/58 ,  Y10T307/685 ,  Y10T307/707

摘要： A method and system for implementing DMPP tracking of partially shaded/uniformly illuminated photovoltaic arrays using switched capacitor DC-DC converter is disclosed. Here, a dedicated SC converter is connected across each PV cell or PV module made of series connected PV cells wherein series connected modules make a PV string and parallel connected PV strings make up a PV array. This SC converter injects an equalization current across the PV module or PV cell so that the total current in the parallel combination of the PV module or PV cell and the corresponding SC converter is the same as the PV string current. In another implementation of DMPP tracking using SC converters, a dedicated SC converter is connected across each isolated PV module to perform MPP tracking of the respective PV module. Then all MPP tracking SC converter outputs are diode ORed to the common load.

摘要翻译： 公开了一种使用开关电容器DC-DC转换器实现部分阴影/均匀照明的光伏阵列的DMPP跟踪的方法和系统。 这里，专用的SC转换器连接在由串联的PV电池制成的每个PV电池或PV模块上，其中串联连接的模块制成PV串，并联的PV串组成PV阵列。 该SC转换器在PV模块或PV电池中注入均衡电流，使得PV模块或PV电池并联组合的总电流与相应的SC转换器的电流与PV串电流相同。 在使用SC转换器的DMPP跟踪的另一实现中，在每个隔离的PV模块上连接专用SC转换器，以对相应的PV模块执行MPP跟踪。 那么所有的MPP跟踪SC转换器输出都是二极管OR与公共负载。

公开(公告)号：US09035491B2

公开(公告)日：2015-05-19

申请号：US13500166

申请日：2010-11-12

申请人： Takanori Ishii ,  Akira Enami ,  Takuya Nakai ,  Akihiro Funamoto

发明人： Takanori Ishii ,  Akira Enami ,  Takuya Nakai ,  Akihiro Funamoto

IPC分类号： H02J1/10 ,  G05F1/67 ,  H02J3/38

CPC分类号： G05F1/67 ,  H02J1/10 ,  H02J3/383 ,  H02J3/385 ,  Y02E10/563 ,  Y02E10/58 ,  Y10T307/344 ,  Y10T307/696

摘要： An output converter includes a DCDC conversion section, a secondary side voltage/current monitoring section detecting a power from the DCDC conversion section, a maximum operation point control section determining what voltage is to be set by the DCDC conversion section so that the power detected by the secondary side voltage/current monitoring section is maximum, a DCDC short-circuit switch via which a current from a module bypasses the DCDC conversion section to outside, a primary side voltage/current monitoring section measuring the current from the module, a module short-circuit switch switching between a state where a secondary side cathode and a secondary side anode are short-circuited and a state where they are not short-circuited, the maximum operation point control section causing the DCDC short-circuit switch and the module short-circuit switch to switch.

摘要翻译： 输出转换器包括DCDC转换部分，检测来自DCDC转换部分的电力的次级侧电压/电流监视部分，最大操作点控制部分，确定由DCDC转换部分设置哪个电压，使得由 次级侧电压/电流监视部分是最大的，DCDC短路开关，来自模块的电流通过该DCDC短路开关绕过DCDC转换部分到外部，初级侧电压/电流监测部分测量来自模块的电流，模块短路 在次级侧阴极和次级侧阳极短路的状态和不短路的状态之间切换的电路开关，使DCDC短路开关和模块短路开关的最大工作点控制部， 电路开关切换。

公开(公告)号：US08981738B2

公开(公告)日：2015-03-17

申请号：US13377016

申请日：2010-06-15

申请人： Ferdinando Tonicello ,  Olivier Mourra

发明人： Ferdinando Tonicello ,  Olivier Mourra

IPC分类号： G05F1/67 ,  H02J7/35 ,  H02M3/156 ,  H02M3/158

CPC分类号： G05F1/67 ,  H02J7/35 ,  H02M3/156 ,  H02M3/158 ,  H02M3/1582 ,  Y02E10/566 ,  Y02E10/58 ,  Y10S323/906 ,  Y10T307/707

摘要： A solar array system includes at least one solar array and at least one solar array regulator. The solar array regulator has an input port to be connected to the solar array, and an output port to be connected to a power bus. The solar array comprises a switching voltage converter comprising a step-down (PC1) and a step-up (PC2) power cell connected in cascade; and a control circuit for driving said voltage converter in a step-up, a step-down or a direct energy transfer mode, depending on an input control signal and on at least one feedback signal (SILF) indicative of an operating condition of said switching voltage converter; characterized in that said at least one feedback signal (SILF) is indicative of an intensity of an electrical current (IL) flowing between said step-down and said step-up power cells, whereby the control circuit implements an internal current feedback control.

摘要翻译： 太阳能阵列系统包括至少一个太阳能阵列和至少一个太阳能阵列调节器。 太阳能阵列调节器具有要连接到太阳能阵列的输入端口和要连接到电力总线的输出端口。 该太阳能电池阵列包括一个开关电压转换器，它包括级联的降压（PC1）和升压（PC2）功率单元; 以及控制电路，用于根据输入控制信号和指示所述开关的操作条件的至少一个反馈信号（SILF）以升压，降压或直接能量传递模式驱动所述电压转换器 电压转换器; 其特征在于，所述至少一个反馈信号（SILF）指示在所述降压和所述升压功率单元之间流动的电流（IL）的强度，由此所述控制电路实现内部电流反馈控制。

公开(公告)号：US08810213B2

公开(公告)日：2014-08-19

申请号：US13179118

申请日：2011-07-08

申请人： Yong-Woo Kim ,  Sang-Keun Ji ,  Sung-Soo Hong ,  Chung-Wook Roh ,  Sang-Kyoo Han

发明人： Yong-Woo Kim ,  Sang-Keun Ji ,  Sung-Soo Hong ,  Chung-Wook Roh ,  Sang-Kyoo Han

IPC分类号： G05F1/46 ,  G05F1/67

CPC分类号： G05F1/67 ,  Y02E10/58 ,  Y10S323/906

摘要： A power control method for tracking a Maximum Power Point (MPP) in a photovoltaic system including a solar cell and a boost converter. The power control method includes finding the MPP by applying a continuous ON/OFF signal to the boost converter as a first control signal for controlling a duty ratio of the boost converter, and maintaining an operating point of the photovoltaic system at the MPP by applying a second control signal for controlling the duty ratio to the boost converter depending on a constant-voltage command. In tracking an MPP in a photovoltaic system, an MPPT algorithm may remain at the MPP, without self oscillation, improving fast dynamic characteristics upon a change in solar radiation.

摘要翻译： 一种用于跟踪包括太阳能电池和升压转换器的光伏系统中的最大功率点（MPP）的功率控制方法。 功率控制方法包括通过对升压转换器施加连续的ON / OFF信号作为用于控制升压转换器的占空比的第一控制信号并且通过施加MPP将光伏系统的工作点保持在MPP来找到MPP 第二控制信号，用于根据恒定电压命令控制升压转换器的占空比。 在跟踪光伏系统中的MPP时，MPPT算法可以保持在MPP，而无需自振荡，从而在太阳辐射变化时改善快速动态特性。