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31.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：US07945413B2
公开(公告)日：2011-05-17
申请号：US11849827
申请日：2007-09-04
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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32.发明申请Methods for Minimizing Double-Frequency Ripple Power in Single-Phase Power Conditioners 有权最小化单相功率调节器中双频波纹功率的方法公开(公告)号：US20090097283A1
公开(公告)日：2009-04-16
申请号：US11871015
申请日：2007-10-11
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π/ 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：US20080150484A1
公开(公告)日：2008-06-26
申请号：US11615074
申请日：2006-12-22
IPC分类号： G05F1/10
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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34.发明授权公开(公告)号：US07382112B2
公开(公告)日：2008-06-03
申请号：US11204776
申请日：2005-08-16
申请人： Philip T. Krein
发明人： Philip T. Krein
IPC分类号： G05F1/70
CPC分类号： G05F1/70 , H02M1/4225 , Y02B70/126
摘要： The invention recognizes that filter size can be reduced substantially as power factor is permitted to deviate below unity in systematic ways. Preferred methods of the invention provide specific, computable waveforms that permit use of a minimum filter size given a desired target power factor.
摘要翻译： 本发明认识到，随着功率因数被允许以系统的方式偏离低于单位，滤波器尺寸可以显着降低。 本发明的优选方法提供了特定的可计算波形，其允许在给定所需目标功率因数的情况下使用最小滤波器尺寸。
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公开(公告)号：US4698460A
公开(公告)日：1987-10-06
申请号：US900646
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 or currents result and are utilized by a touch location circuit in determining the location of touch. The impedance touch current resulting from a user's touch may also be determined and used. The touch panel circuit automatically compensates for changes in impedance touch current, such as result when users touch the panel with ungloved and gloved fingers. An analog multiplier is included in the touch location circuit to improve noise rejection. Auto nulling and automatic frequency adjustment is included in the touch panel device, together with overcurrent protection circuitry.
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，触摸信号或电流产生并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阻抗触摸电流的变化，例如用户用不受欢迎和戴手套的手指触摸面板时的结果。 触摸定位电路中包含一个模拟乘法器，以改善噪声抑制。 自动归零和自动频率调整包括在触摸屏设备中，以及过流保护电路。
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公开(公告)号：US20140003100A1
公开(公告)日：2014-01-02
申请号：US13936744
申请日：2013-07-08
申请人： Patrick L. Chapman , Brian T. Kuhn , Robert S. Balog , Jonathan W. Kimball , Philip T. Krein , Alexander Gray
发明人： Patrick L. Chapman , Brian T. Kuhn , Robert S. Balog , Jonathan W. Kimball , Philip T. Krein , Alexander Gray
IPC分类号： H02M5/458
摘要： An apparatus and method for controlling the delivery of power from a DC source to an AC grid includes an inverter configured to deliver power from the unipolar input source to the AC grid and an inverter controller. The inverter includes an input converter, an active filter, and an output converter. The inverter controller includes an input converter controller, an active filter controller and an output converter controller. The input converter controller is configured to control a current delivered by the input converter to a galvanically isolated unipolar bus of the inverter. The output converter is configured to control the output converter to deliver power to the AC grid. Additionally, the active filter controller is configured to control the active filter to supply substantially all the power that is deliver by the output controller to the AC grid at a grid frequency.
摘要翻译： 用于控制从DC源到AC电网的电力传送的装置和方法包括被配置为将功率从单极输入源传送到AC电网的逆变器和逆变器控制器。 逆变器包括输入转换器，有源滤波器和输出转换器。 逆变器控制器包括输入转换器控制器，有源滤波器控制器和输出转换器控制器。 输入转换器控制器被配置为将由输入转换器传递的电流控制到逆变器的电隔离单极总线。 输出转换器被配置为控制输出转换器向AC电网输送电力。 此外，有源滤波器控制器被配置为控制有源滤波器以电网频率将由输出控制器传送的基本上所有的功率提供给AC电网。
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公开(公告)号：US08350411B2
公开(公告)日：2013-01-08
申请号：US13092916
申请日：2011-04-23
IPC分类号： H02J9/00
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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38.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：US08325499B2
公开(公告)日：2012-12-04
申请号：US13215527
申请日：2011-08-23
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 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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公开(公告)号：US20120091800A1
公开(公告)日：2012-04-19
申请号：US13340076
申请日：2011-12-29
申请人： PRADEEP SHENOY , PHILIP T. KREIN
发明人： PRADEEP 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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公开(公告)号：US20110199044A1
公开(公告)日：2011-08-18
申请号：US13092916
申请日：2011-04-23
IPC分类号： H02J7/00
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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