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1.发明授权公开(公告)号：US08737100B2
公开(公告)日：2014-05-27
申请号：US13647847
申请日：2012-10-09
IPC分类号： H02M7/44
CPC分类号： H02M7/537 , H02J3/383 , Y02E10/563
摘要： A method and apparatus for controlling an inverter includes operating the inverter in a one of a normal run mode or a pulse mode depending on one or more criteria. When operating in the pulse mode, the inverter generates a sinusoidal output pulse waveform including a plurality of pulses having a determined pulse width. The pulse width is less than a half-wave period of a full-cycle sinusoidal waveform and may be determined as function of, for example, the output power of the inverter, a grid voltage, and/or other criteria.
摘要翻译： 用于控制逆变器的方法和装置包括根据一个或多个标准以正常运行模式或脉冲模式中的一个操作逆变器。 当在脉冲模式下操作时，逆变器产生包括具有确定的脉冲宽度的多个脉冲的正弦输出脉冲波形。 脉冲宽度小于全周期正弦波形的半波周期，并且可以被确定为例如逆变器的输出功率，电网电压和/或其他标准的函数。
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公开(公告)号：US08508074B2
公开(公告)日：2013-08-13
申请号：US13340076
申请日：2011-12-29
申请人： Pradeep S. Shenoy , Philip T. Krein
发明人： Pradeep S. Shenoy , Philip T. Krein
IPC分类号： H02J1/00
CPC分类号： H02J1/00 , H01L31/02021 , H02J3/383 , Y02E10/563 , Y10T307/352 , Y10T307/609 , Y10T307/685 , Y10T307/707
摘要： A solar power system is provided for maximizing solar power conversion. The solar power system includes n power units connected in series and n-1 DC-DC converting units, and each of the n-1 DC-DC converting units is coupled to at least one of n solar power units. Each of the n-1 DC-DC converting units is configured to control the correspondingly connected solar power units to operate at a target current generation. The solar power system further includes a controlling unit coupled to the n-1 DC-DC converting units. The controlling unit monitors and compares the n currents generated by the n solar power units. Based on the current comparison, the controlling unit determines a series current and controls the n solar power units so that each of the generated photovoltaic currents is substantially equal to the determined series current.
摘要翻译： 提供太阳能发电系统以最大限度地提高太阳能转换。 太阳能发电系统包括串联连接的n个电力单元和n-1个DC-DC转换单元，并且n-1个DC-DC转换单元中的每一个耦合到n个太阳能发电单元中的至少一个。 每个n-1个DC-DC转换单元被配置为控制相应连接的太阳能发电单元以目标电流产生运行。 太阳能发电系统还包括耦合到n-1个DC-DC转换单元的控制单元。 控制单元监视和比较由n个太阳能发电单元产生的n个电流。 基于当前的比较，控制单元确定串联电流并且控制n个太阳能发电单元，使得每个所产生的光电流基本上等于所确定的串联电流。
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3.发明授权Voltage-sensed system and method for anti-islanding protection of grid-connected inverters 有权并网逆变器防孤岛保护电压检测系统及方法公开(公告)号：US08423312B2
公开(公告)日：2013-04-16
申请号：US13050592
申请日：2011-03-17
申请人： Philip T. Krein
发明人： Philip T. Krein
IPC分类号： G06F13/20
CPC分类号： H02M1/32 , Y10T307/289
摘要： A method is provided for preventing islanding of a power source connected to an electric AC grid via an interface. The method senses an output voltage waveform of the interface, controls an output current waveform of the interface to track a reference current waveform having a mathematical relationship with the sensed output voltage waveform, and discontinues the output current waveform when the output voltage waveform is sensed to be outside a predetermined waveform range.
摘要翻译： 提供了一种用于防止经由接口连接到电力交流电网的电源的孤岛的方法。 该方法检测接口的输出电压波形，控制接口的输出电流波形以跟踪与检测到的输出电压波形具有数学关系的参考电流波形，并且当输出电压波形被感测到时停止输出电流波形 超出预定波形范围。
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4.发明申请METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS 有权在单相功率调节器中最小化双频纹波功率的方法公开(公告)号：US20110305050A1
公开(公告)日：2011-12-15
申请号：US13215527
申请日：2011-08-23
IPC分类号： H02M1/14
CPC分类号： H02J3/1835 , H02J3/1842 , H02J3/383 , H02J3/387 , H02J2001/004 , Y02E10/563 , Y02E40/22 , Y02E40/30
摘要： A method is provided for minimizing a double-frequency ripple power exchanged between a load and an energy source, the energy source delivering electrical power to the load through a single-phase power conditioner, and the power conditioner being coupled to an energy storage device. The method includes determining a phase shift of an AC output signal of the power condition and an average AC output power of the power conditioner. The average AC output power may be a predetermined value or a calculated value based on sensed or measured signals. The method further includes generating an AC signal at an energy storage device. The generated AC signal has an amplitude that is a function of the average AC output power and a phase shift substantially equal to 45 degrees minus an amount that is dependent on the determined phase shift. In some embodiments, the phase shift may be determined to be of a non-zero value.
摘要翻译： 提供了一种用于最小化负载和能量源之间交换的双频纹波功率的方法，所述能量源通过单相功率调节器将功率传送到负载，并且所述功率调节器耦合到能量存储装置。 该方法包括确定功率条件的AC输出信号的相移和功率调节器的平均AC输出功率。 平均交流输出功率可以是基于感测或测量信号的预定值或计算值。 该方法还包括在能量存储装置处产生AC信号。 所产生的AC信号具有作为平均AC输出功率的函数的幅度和基本上等于45度的相移减去取决于确定的相移的量。 在一些实施例中，可以将相移确定为非零值。
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5.发明授权Methods for minimizing double-frequency ripple power in single-phase power conditioners 有权降低单相功率调节器双频纹波功率的方法公开(公告)号：US07755916B2
公开(公告)日：2010-07-13
申请号：US11871015
申请日：2007-10-11
IPC分类号： H02J1/02
CPC分类号： H02J3/1835 , H02J3/1842 , H02J3/383 , H02J3/387 , H02J2001/004 , Y02E10/563 , Y02E40/22 , Y02E40/30
摘要： A method is provided for minimizing a double-frequency ripple power exchanged between a load and an energy source, the energy source delivering electrical power to the load through a single-phase power conditioner, and the power conditioner being coupled to an energy storage device. The method senses a first AC waveform at the output of the power conditioner, generates a second AC waveform at the energy storage device, the second AC waveform having the same frequency as the first AC waveform, and shifts the second AC waveform by a phase shift equal to π/4 radians relative to a phase of the first AC waveform, thereby minimizing the double-frequency ripple power in the power supplied by the energy source.
摘要翻译： 提供了一种用于最小化负载和能量源之间交换的双频纹波功率的方法，所述能量源通过单相功率调节器将功率传递到负载，并且所述功率调节器耦合到能量存储装置。 该方法检测功率调节器的输出端的第一AC波形，在能量存储装置产生第二AC波形，第二AC波形具有与第一AC波形相同的频率，并将第二AC波形移位相移 相对于第一AC波形的相位等于＆pgr / / 4弧度，从而最小化由能量源提供的功率中的双频纹波功率。
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公开(公告)号：US07030512B2
公开(公告)日：2006-04-18
申请号：US10877514
申请日：2004-06-25
申请人： Philip T. Krein
发明人： Philip T. Krein
IPC分类号： H02J1/00
CPC分类号： H02J1/108 , H02J1/102 , Y10T307/598 , Y10T307/609 , Y10T307/685
摘要： A power supply in an embodiment of the invention includes a plurality of dc—dc switching power converters, each of which has its input isolated from its output. The power converters are arranged with their respective inputs being series connected and their respective outputs being parallel connected in an embodiment of the invention. In another embodiment of the inputs are parallel connected and the outputs series connected. Each power converter includes an input filter in each of said dc—dc switching power converters and an output filter. Each power converter includes a sensorless current mode control circuit controlling its switching duty ratio.
摘要翻译： 本发明的实施例中的电源包括多个dc-dc开关电源转换器，每个dc-dc开关电源转换器的输入与其输出隔离。 在本发明的实施例中，功率转换器被布置成其各自的输入串联连接，并且它们各自的输出并联。 在输入的另一个实施例中并联并且输出串联连接。 每个功率转换器包括在每个所述dc-dc开关电源转换器中的输入滤波器和输出滤波器。 每个功率转换器包括控制其开关占空比的无传感器电流模式控制电路。
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公开(公告)号：US4707845A
公开(公告)日：1987-11-17
申请号：US900559
申请日：1986-08-26
CPC分类号： G06F3/0418
摘要： A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touched, touch signals result and are utilized by a touch location circuit in determining the location of touch. The impedence touch current resulting from a user's touch may also be determined and used. The touch panel circuit automatically compensates for any variations in touch signals which occur when the touch panel is untouched and automatically nulls the touch signals under such circumstances to enhance the accuracy of touch location determination.
摘要翻译： 触摸面板具有选择性地施加到面板的触摸感测表面的四个侧面的面板扫描信号，以便在穿过触摸感测表面的期望方向上建立交流电压梯度。 当面板被触摸时，触摸信号的结果被触摸位置电路用于确定触摸的位置。 也可以确定和使用由用户触摸产生的阻抗触摸电流。 触摸面板电路自动补偿当触摸面板未触摸时发生的触摸信号的任何变化，并且在这种情况下自动使触摸信号为零，以增强触摸位置确定的准确性。
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公开(公告)号：US4698461A
公开(公告)日：1987-10-06
申请号：US900567
申请日：1986-08-26
CPC分类号： G06F3/0418 , G06F3/045
摘要： A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touched, touch signals result and are utilized by a touch location circuit in determining the location of touch. The impedence touch current resulting from a user's touch may also be determined and used. The touch panel circuit automatically adjusts the frequency of the applied panel signals to shift this frequency away from fixed frequency interference spectra, such as due to cathode-ray tube flyback signals, in the environment in which the touch panel is used. The touch location thereby minimizes the effects of such spectra on touch location determinations.
摘要翻译： 触摸面板具有选择性地施加到面板的触摸感测表面的四个侧面的面板扫描信号，以便在穿过触摸感测表面的期望方向上建立交流电压梯度。 当面板被触摸时，触摸信号的结果被触摸位置电路用于确定触摸的位置。 也可以确定和使用由用户触摸产生的阻抗触摸电流。 触摸面板电路自动调整所应用的面板信号的频率，以便在使用触摸面板的环境中将该频率从固定频率干扰频谱（例如由于阴极射线管反激信号）偏离。 因此，触摸位置使得这种光谱对触摸位置确定的影响最小化。
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公开(公告)号：US07994657B2
公开(公告)日：2011-08-09
申请号：US11615074
申请日：2006-12-22
IPC分类号： H02J1/00
CPC分类号： H02J7/34 , H02J7/345 , H02J7/35 , Y10T307/615 , Y10T307/707
摘要： An apparatus and method for supplying energy to a load includes an energy recharge unit, an energy storage unit, an energy converter connected to the energy recharge unit, the energy converter being capable of transferring energy at a power level from the energy recharge unit to an output node, the power level being determined by a power transfer controller, and a bi-directional energy converter connected to the energy storage unit and to the output node. The bi-directional energy converter is capable of converting energy of varying voltages from the energy storage unit to energy of varying current levels to supplement the transferred energy with energy from the energy storage unit so as to maintain a constant voltage on the output node. The bi-directional energy converter is capable of converting the transferred energy to provide charging energy to the energy storage unit when the transferred energy exceeds a demand level of the load while maintaining the constant voltage at the output node.
摘要翻译： 向负载提供能量的装置和方法包括能量再充电单元，能量存储单元，连接到能量再生单元的能量转换器，所述能量转换器能够将功率能量从能量再生单元传递到能量再生单元 输出节点，功率电平由功率传输控制器确定，以及连接到能量存储单元和输出节点的双向能量转换器。 双向能量转换器能够将来自能量存储单元的变化的电压的能量转换为变化的电流水平的能量，以通过来自能量存储单元的能量补充所传送的能量，以便在输出节点上保持恒定的电压。 当传输的能量超过负载的需求水平同时保持输出节点处的恒定电压时，双向能量转换器能够转换传递的能量以向能量存储单元提供充电能量。
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10.发明申请VOLTAGE-SENSED SYSTEM AND METHOD FOR ANTI-ISLANDING PROTECTION OF GRID-CONNECTED INVERTERS 有权电网感应系统及防雷网络保护逆变器的方法公开(公告)号：US20110164440A1
公开(公告)日：2011-07-07
申请号：US13050592
申请日：2011-03-17
申请人： Philip T. Krein
发明人： Philip T. Krein
IPC分类号： H02M7/44
CPC分类号： H02M1/32 , Y10T307/289
摘要： A method is provided for preventing islanding of a power source connected to an electric AC grid via an interface. The method senses an output voltage waveform of the interface, controls an output current waveform of the interface to track a reference current waveform having a mathematical relationship with the sensed output voltage waveform, and discontinues the output current waveform when the output voltage waveform is sensed to be outside a predetermined waveform range.
摘要翻译： 提供了一种用于防止经由接口连接到电力交流电网的电源的孤岛的方法。 该方法检测接口的输出电压波形，控制接口的输出电流波形以跟踪与检测到的输出电压波形具有数学关系的参考电流波形，并且当输出电压波形被感测到时停止输出电流波形 超出预定波形范围。
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