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公开(公告)号：US20120230066A1
公开(公告)日：2012-09-13
申请号：US13041585
申请日：2011-03-07
IPC分类号： H02M5/45
CPC分类号： H02M7/4807 , H02J3/385 , H02M3/337 , Y02E10/58
摘要： A photovoltaic powered system and an alternating current (AC) module thereof are disclosed. The photovoltaic powered system provides a direct current (DC) power through a photovoltaic module and converts the DC power into an AC power, which is grid-connected to an AC utility power. The AC module of the photovoltaic powered system produces a continuous quasi-sinusoidal current and the quasi-sinusoidal current is converted into a sinusoidal current. The high-frequency harmonic components of the sinusoidal current are filtered to produce a sinusoidal output current in phase with the AC utility power, thus realizing the maximum power point tracking (MPPT) of the photovoltaic module and feeding unity-power-factor power into the AC utility power.
摘要翻译： 公开了一种光伏动力系统及其交流（AC）模块。 光伏电力系统通过光伏模块提供直流（DC）电力，并将直流电力转换为与电力公司电力并网的交流电。 光伏电力系统的AC模块产生连续准正弦电流，准正弦电流转换为正弦电流。 对正弦电流的高频谐波分量进行滤波以产生与交流电力同相的正弦输出电流，从而实现光伏模块的最大功率点跟踪（MPPT），并将单位功率因数功率馈送到 交流电源。
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2.发明授权公开(公告)号：US08971058B2
公开(公告)日：2015-03-03
申请号：US13592423
申请日：2012-08-23
申请人： Ching-Tsai Pan , Ming-Chieh Cheng , Ching-Ming Lai , Yen-Liang Chou , Chih-Hsing Fang , Wen-Wei Chan
发明人： Ching-Tsai Pan , Ming-Chieh Cheng , Ching-Ming Lai , Yen-Liang Chou , Chih-Hsing Fang , Wen-Wei Chan
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M3/3372 , H02M2001/0054 , Y02B70/1491
摘要： A high-efficiency high step-up ratio direct current converter with an interleaved soft-switching mechanism is provided. The direct current converter includes a voltage-multiplier circuit and an active clamping circuit. The voltage-multiplier circuit includes two isolating transformers, two main switches disposed on a primary side of the two isolating transformers, four diodes disposed on a secondary side of the two isolating transformers and four capacitors disposed on the secondary side of two isolating transformers, configured to boost a voltage of a direct-current power to a desired voltage value. The active clamping circuit, electrically connected to the voltage-multiplier circuit, includes two active clamp switches and a clamp capacitor to lower a voltage surge of the two main switches so that the two main switches and the two active clamp switches can be soft switched on.
摘要翻译： 提供了一种具有交错软切换机制的高效率升压比直流电流转换器。 直流电流转换器包括一个电压 - 倍增器电路和一个有源钳位电路。 电压乘法器电路包括两个隔离变压器，两个主开关设置在两个隔离变压器的初级侧，四个二极管设置在两个隔离变压器的次级侧上，四个电容器设置在两个隔离变压器的次级侧， 以将直流电力的电压升高到期望的电压值。 电连接到电压 - 倍增器电路的有源钳位电路包括两个有源钳位开关和钳位电容器，用于降低两个主开关的电压浪涌，使得两个主开关和两个有源钳位开关可以软接通 。
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公开(公告)号：US08493753B2
公开(公告)日：2013-07-23
申请号：US13041585
申请日：2011-03-07
IPC分类号： H02M5/45
CPC分类号： H02M7/4807 , H02J3/385 , H02M3/337 , Y02E10/58
摘要： A photovoltaic powered system and an alternating current (AC) module thereof are disclosed. The photovoltaic powered system provides a direct current (DC) power through a photovoltaic module and converts the DC power into an AC power, which is grid-connected to an AC utility power. The AC module of the photovoltaic powered system produces a continuous quasi-sinusoidal current and the quasi-sinusoidal current is converted into a sinusoidal current. The high-frequency harmonic components of the sinusoidal current are filtered to produce a sinusoidal output current in phase with the AC utility power, thus realizing the maximum power point tracking (MPPT) of the photovoltaic module and feeding unity-power-factor power into the AC utility power.
摘要翻译： 公开了一种光伏动力系统及其交流（AC）模块。 光伏电力系统通过光伏模块提供直流（DC）电力，并将直流电力转换为与电力公司电力并网的交流电。 光伏电力系统的AC模块产生连续准正弦电流，准正弦电流转换为正弦电流。 对正弦电流的高频谐波分量进行滤波以产生与交流电力同相的正弦输出电流，从而实现光伏模块的最大功率点跟踪（MPPT），并将单位功率因数功率馈送到 交流电源。
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4.发明申请High-efficiency High Step-up Ratio Direct CurrentConverter with Interleaved Soft-switchingMechanism 有权具有交错软开关机构的高效率高升压比直流转换器公开(公告)号：US20140056032A1
公开(公告)日：2014-02-27
申请号：US13592423
申请日：2012-08-23
申请人： Ching-Tsai Pan , Ming-Chieh Cheng , Ching-Ming Lai , Yen-Liang Chou , Chih-Hsing Fang , Wen-Wei Chan
发明人： Ching-Tsai Pan , Ming-Chieh Cheng , Ching-Ming Lai , Yen-Liang Chou , Chih-Hsing Fang , Wen-Wei Chan
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M3/3372 , H02M2001/0054 , Y02B70/1491
摘要： A high-efficiency high step-up ratio direct current converter with an interleaved soft-switching mechanism is provided. The direct current converter includes a voltage-multiplier circuit and an active clamping circuit. The voltage-multiplier circuit includes two isolating transformers, two main switches disposed on a primary side of the two isolating transformers, four diodes disposed on a secondary side of the two isolating transformers and four capacitors disposed on the secondary side of two isolating transformers, configured to boost a voltage of a direct-current power to a desired voltage value. The active clamping circuit, electrically connected to the voltage-multiplier circuit, includes two active clamp switches and a clamp capacitor to lower a voltage surge of the two main switches so that the two main switches and the two active clamp switches can be soft switched on.
摘要翻译： 提供了一种具有交错软切换机制的高效率升压比直流电流转换器。 直流电流转换器包括一个电压 - 倍增器电路和一个有源钳位电路。 电压乘法器电路包括两个隔离变压器，两个主开关设置在两个隔离变压器的初级侧，四个二极管设置在两个隔离变压器的次级侧上，四个电容器设置在两个隔离变压器的次级侧， 以将直流电力的电压升高到期望的电压值。 电连接到电压 - 倍增器电路的有源钳位电路包括两个有源钳位开关和钳位电容器，用于降低两个主开关的电压浪涌，使得两个主开关和两个有源钳位开关可以软接通 。
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公开(公告)号：US08411473B2
公开(公告)日：2013-04-02
申请号：US12972794
申请日：2010-12-20
申请人： Chaur-Ping Cheng , Chih-Hsing Fang , Wen-Wei Chan , Po-Yuan Chen
发明人： Chaur-Ping Cheng , Chih-Hsing Fang , Wen-Wei Chan , Po-Yuan Chen
CPC分类号： H02M7/487 , H02M3/337 , H02M2001/007
摘要： A three-phase power supply with a three-phase three-level DC/DC converter includes a full-bridge thyristor converter with three-set four in-series power switch elements, a three-phase isolated transformer, a full-bridge rectifier, a rectifying circuit, and a low-pass filtering circuit. The three-phase power supply is used to deliver power energy from the AC input voltage to the load. The power switch elements, which separated to each other at 120-degree phase differences, are controlled through a phase shift scheme. Therefore, the three-level circuit structure is provided to reduce withstanding voltage of the power switch elements, further the zero-voltage switching (ZVS) is achieved by the isolated transformer and the power switch elements to increase the efficiency of the DC/DC converter.
摘要翻译： 具有三相三电平DC / DC转换器的三相电源包括具有三组四个串联电源开关元件的全桥晶闸管转换器，三相隔离变压器，全桥整流器， 整流电路和低通滤波电路。 三相电源用于将电力能量从交流输入电压输送到负载。 通过相移方案控制以120度相位差彼此分离的功率开关元件。 因此，提供三电平电路结构以降低功率开关元件的耐受电压，进一步通过隔离变压器和功率开关元件实现零电压开关（ZVS），以提高DC / DC转换器的效率 。
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公开(公告)号：US20120155124A1
公开(公告)日：2012-06-21
申请号：US12972794
申请日：2010-12-20
申请人： Chaur-Ping CHENG , Chih-Hsing Fang , Wen-Wei Chan , Po-Yuan Chen
发明人： Chaur-Ping CHENG , Chih-Hsing Fang , Wen-Wei Chan , Po-Yuan Chen
IPC分类号： H02M3/337
CPC分类号： H02M7/487 , H02M3/337 , H02M2001/007
摘要： A three-phase power supply with a three-phase three-level DC/DC converter includes a full-bridge thyristor converter with three-set four in-series power switch elements, a three-phase isolated transformer, a full-bridge rectifier, a rectifying circuit, and a low-pass filtering circuit. The three-phase power supply is used to deliver power energy from the AC input voltage to the load. The power switch elements, which separated to each other at 120-degree phase differences, are controlled through a phase shift scheme. Therefore, the three-level circuit structure is provided to reduce withstanding voltage of the power switch elements, further the zero-voltage switching (ZVS) is achieved by the isolated transformer and the power switch elements to increase the efficiency of the DC/DC converter.
摘要翻译： 具有三相三电平DC / DC转换器的三相电源包括具有三组四个串联电源开关元件的全桥晶闸管转换器，三相隔离变压器，全桥整流器， 整流电路和低通滤波电路。 三相电源用于将电力能量从交流输入电压输送到负载。 通过相移方案控制以120度相位差彼此分离的功率开关元件。 因此，提供三电平电路结构以降低功率开关元件的耐受电压，进一步通过隔离变压器和功率开关元件实现零电压开关（ZVS），以提高DC / DC转换器的效率 。
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