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1.发明授权公开(公告)号：US08649195B2
公开(公告)日：2014-02-11
申请号：US13081557
申请日：2011-04-07
IPC分类号： H02J1/10
CPC分类号： H02M7/493 , H02M2007/53876
摘要： Systems and methods for controlling a modular three-phase converter including two or more interleaved, parallel connected Voltage Source Converters (VSCs) utilizing a hybrid Space Vector Pulse Width Modulation (SVM) control scheme are provided. For the hybrid SVM control scheme, six active vectors utilized for SVM define six sectors in a space vector plane. Each sector is divided into two or more regions having corresponding optimal SVM switching sequences. In operation, a revolving reference voltage vector is sampled to provide a reference voltage vector. The SVM controller then identifies one of the regions in one of the sectors that corresponds to an angle and, in some embodiments, a magnitude of the revolving reference voltage vector and applies the corresponding optimal SVM switching sequence to the two or more interleaved, parallel connected VSCs.
摘要翻译： 提供了利用混合空间矢量脉宽调制（SVM）控制方案来控制包括两个或更多个交错并行连接的电压源转换器（VSC）的模块化三相转换器的系统和方法。 对于混合SVM控制方案，用于SVM的六个主动矢量定义了空间矢量平面中的六个扇区。 每个扇区被分成具有对应的最佳SVM切换序列的两个或更多个区域。 在操作中，旋转参考电压矢量被采样以提供参考电压矢量。 SVM控制器然后识别对应于一个角度的一个扇区中的一个区域，并且在一些实施例中识别旋转参考电压矢量的大小，并将相应的最佳SVM切换序列应用于两个或更多个交错并联连接 VSC。
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公开(公告)号：US20110249472A1
公开(公告)日：2011-10-13
申请号：US13078367
申请日：2011-04-01
IPC分类号： H02J1/00
CPC分类号： H02M3/33584 , H02M3/3376 , H02M2001/0032 , Y02B70/16
摘要： A Dual Active Bridge (DAB) converter and a Pulse Width Modulation (PWM) scheme for controlling the DAB converter are disclosed. In general, the DAB converter includes a transformer, a first H-bridge that is connected to a primary winding of the transformer and controlled via first control signals, and a second H-bridge that is connected to a secondary winding of the transformer and controlled via second control signals. A controller provides the first and second control signals based on an input-to-output voltage ratio and load of the DAB converter such that, in addition to phase shift control, PWM control is simultaneously applied to both the first H-bridge and the second H-bridge when the DAB converter operates at low power and PWM control is applied to only one of the first H-bridge and the second H-bridge when the DAB converter operates above low power.
摘要翻译： 公开了用于控制DAB转换器的双有源桥（DAB）转换器和脉宽调制（PWM）方案。 通常，DAB转换器包括变压器，连接到变压器的初级绕组并通过第一控制信号控制的第一H桥和连接到变压器的次级绕组并被控制的第二H桥 通过第二控制信号。 控制器基于DAB转换器的输入 - 输出电压比和负载来提供第一和第二控制信号，使得除了相移控制之外，PWM控制同时被施加到第一H桥和第二H桥 当DAB转换器工作在低功耗时，H桥，当DAB转换器工作在低功耗以上时，PWM控制仅施加于第一H桥和第二H桥中的一个。
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3.发明申请公开(公告)号：US20200274484A1
公开(公告)日：2020-08-27
申请号：US16797281
申请日：2020-02-21
摘要： Various embodiments for a connection topology reconfiguration technique for photovoltaic (PV) arrays to maximize power output under partial shading and fault conditions using neural networks are disclosed herein.
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公开(公告)号：US06611444B2
公开(公告)日：2003-08-26
申请号：US09975394
申请日：2001-10-10
申请人： Rajapandian Ayyanar , Ned Mohan
发明人： Rajapandian Ayyanar , Ned Mohan
IPC分类号： H02M75387
CPC分类号： H02M3/337 , H02M2001/0077
摘要： A DC—DC power converter includes input terminals and a rectifier circuit. An additional circuit is connected to the input terminals and the rectifier. The latter circuit is adapted to generate a varying voltage at output terminals of the rectifier that varies in amplitude from a maximum voltage value to a non-zero voltage value between the maximum voltage value and zero.
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公开(公告)号：US11616471B2
公开(公告)日：2023-03-28
申请号：US16797281
申请日：2020-02-21
摘要： Various embodiments for a connection topology reconfiguration technique for photovoltaic (PV) arrays to maximize power output under partial shading and fault conditions using neural networks are disclosed herein.
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公开(公告)号：US11152849B2
公开(公告)日：2021-10-19
申请号：US16894389
申请日：2020-06-05
申请人： Rajapandian Ayyanar
发明人： Rajapandian Ayyanar
摘要： A soft-switching, high-performance single-phase alternating current (AC)-direct current (DC) converter is provided. The AC-DC converter described herein provides a new circuit topology for single-stage, single-phase or multi-phase AC-DC power conversion with power factor correction (PFC) and galvanic isolation using a high-frequency isolation transformer. The AC-DC converter improves power conversion efficiency and power density—two of the most important metrics for a power converter. It achieves soft switching for high frequency switches in the circuit, leading to higher efficiency and lower electromagnetic interference (EMI).
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公开(公告)号：US08587975B2
公开(公告)日：2013-11-19
申请号：US13078367
申请日：2011-04-01
CPC分类号： H02M3/33584 , H02M3/3376 , H02M2001/0032 , Y02B70/16
摘要： A Dual Active Bridge (DAB) converter and a Pulse Width Modulation (PWM) scheme for controlling the DAB converter are disclosed. In general, the DAB converter includes a transformer, a first H-bridge that is connected to a primary winding of the transformer and controlled via first control signals, and a second H-bridge that is connected to a secondary winding of the transformer and controlled via second control signals. A controller provides the first and second control signals based on an input-to-output voltage ratio and load of the DAB converter such that, in addition to phase shift control, PWM control is simultaneously applied to both the first H-bridge and the second H-bridge when the DAB converter operates at low power and PWM control is applied to only one of the first H-bridge and the second H-bridge when the DAB converter operates above low power.
摘要翻译： 公开了用于控制DAB转换器的双有源桥（DAB）转换器和脉宽调制（PWM）方案。 通常，DAB转换器包括变压器，连接到变压器的初级绕组并通过第一控制信号控制的第一H桥和连接到变压器的次级绕组并被控制的第二H桥 通过第二控制信号。 控制器基于DAB转换器的输入 - 输出电压比和负载来提供第一和第二控制信号，使得除了相移控制之外，PWM控制同时被施加到第一H桥和第二H桥 当DAB转换器工作在低功耗时，H桥，当DAB转换器工作在低功耗以上时，PWM控制仅施加于第一H桥和第二H桥中的一个。
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8.发明申请公开(公告)号：US20120147639A1
公开(公告)日：2012-06-14
申请号：US13081557
申请日：2011-04-07
IPC分类号： H02M7/44
CPC分类号： H02M7/493 , H02M2007/53876
摘要： Systems and methods for controlling a modular three-phase converter including two or more interleaved, parallel connected Voltage Source Converters (VSCs) utilizing a hybrid Space Vector Pulse Width Modulation (SVM) control scheme are provided. For the hybrid SVM control scheme, six active vectors utilized for SVM define six sectors in a space vector plane. Each sector is divided into two or more regions having corresponding optimal SVM switching sequences. In operation, a revolving reference voltage vector is sampled to provide a reference voltage vector. The SVM controller then identifies one of the regions in one of the sectors that corresponds to an angle and, in some embodiments, a magnitude of the revolving reference voltage vector and applies the corresponding optimal SVM switching sequence to the two or more interleaved, parallel connected VSCs.
摘要翻译： 提供了利用混合空间矢量脉宽调制（SVM）控制方案来控制包括两个或更多个交错并行连接的电压源转换器（VSC）的模块化三相转换器的系统和方法。 对于混合SVM控制方案，用于SVM的六个主动矢量定义了空间矢量平面中的六个扇区。 每个扇区被分成具有对应的最佳SVM切换序列的两个或更多个区域。 在操作中，旋转参考电压矢量被采样以提供参考电压矢量。 SVM控制器然后识别对应于一个角度的一个扇区中的一个区域，并且在一些实施例中识别旋转参考电压矢量的大小，并将相应的最佳SVM切换序列应用于两个或更多个交错并联连接 VSC。
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9.发明公开公开(公告)号：US20230291203A1
公开(公告)日：2023-09-14
申请号：US18121388
申请日：2023-03-14
CPC分类号： H02J3/004 , G05F1/67 , H02J2300/26
摘要： A system reconfigures a photovoltaic array used in solar energy based on observed shading conditions to determine an optimal topology of the photovoltaic array to maximize power output. Specifically, the system is designed to reconfigure a photovoltaic array when the photovoltaic array is partially shaded. The system uses a neural network model to determine a topology that maximizes power output of the photovoltaic array based on irradiance data obtained from the photovoltaic array.
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公开(公告)号：US08243410B2
公开(公告)日：2012-08-14
申请号：US12116746
申请日：2008-05-07
CPC分类号： H02M3/1584
摘要： A transient voltage compensation system is provided. The transient voltage compensation system includes a processor and a first voltage regulator coupled to the processor, wherein the first voltage regulator is to deliver a load current to the processor at an output voltage. The transient voltage compensation system also includes a second voltage regulator coupled to the first voltage regulator, wherein the second voltage regulator is to regulate the output voltage in response to transient loads of the processor.
摘要翻译： 提供瞬态电压补偿系统。 瞬态电压补偿系统包括耦合到处理器的处理器和第一电压调节器，其中第一电压调节器将以输出电压将负载电流传送到处理器。 瞬态电压补偿系统还包括耦合到第一电压调节器的第二电压调节器，其中第二电压调节器响应于处理器的瞬态负载来调节输出电压。
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