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公开(公告)号：US07091704B2
公开(公告)日：2006-08-15
申请号：US11153533
申请日：2005-06-16
申请人： Hung-Liang Chou , Chin-Chang Wu , Wen-Pin Hsu , Ya-Tsung Feng , Yao-Jen Chang
发明人： Hung-Liang Chou , Chin-Chang Wu , Wen-Pin Hsu , Ya-Tsung Feng , Yao-Jen Chang
摘要： A three-phase three-wire active power filter includes a dc power capacitor, a power converter, a filter inductor set, a reactive power compensating capacitor set, a combined capacitor/resistor filtering set and a control circuit. The dc power capacitor provides with a regulated voltage. The power converter includes a two-arm bridge power converter, and has a pair of ac terminals and a pair of dc terminals. A phase of the three-phase three-wire active power filter, without control of the power electronic switch set, directly connects with any one of the dc terminals. Consequently, the number of power electronic switches employed in the two-arm bridge power converter of the three-phase three-wire active power filter can be reduced.
摘要翻译： 三相三线有源电力滤波器包括直流电力电容器，功率转换器，滤波电感器组，无功补偿电容器组，组合电容器/电阻滤波器组和控制电路。 直流电源电容提供稳压电压。 电力转换器包括一个双臂电力电力转换器，并具有一对交流端子和一对直流端子。 三相三线有源电力滤波器的一个阶段，无需电力电子开关组的控制，可直接与任何一个直流端子连接。 因此，可以减少三相三线有源电力滤波器的双臂电力变换器中使用的电力电子开关的数量。
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公开(公告)号：US20060033479A1
公开(公告)日：2006-02-16
申请号：US11153533
申请日：2005-06-16
申请人： Hung-Liang Chou , Chin-Chang Wu , Wen-Pin Hsu , Ya-Tsung Feng , Yao-Jen Chang
发明人： Hung-Liang Chou , Chin-Chang Wu , Wen-Pin Hsu , Ya-Tsung Feng , Yao-Jen Chang
IPC分类号： G05F1/70
摘要： A three-phase three-wire active power filter includes a dc power capacitor, a power converter, a filter inductor set, a reactive power compensating capacitor set, a combined capacitor/resistor filtering set and a control circuit. The dc power capacitor provides with a regulated voltage. The power converter includes a two-arm bridge power converter, and has a pair of ac terminals and a pair of dc terminals. A phase of the three-phase three-wire active power filter, without control of the power electronic switch set, directly connects with any one of the dc terminals. Consequently, the number of power electronic switches employed in the two-arm bridge power converter of the three-phase three-wire active power filter can be reduced.
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公开(公告)号：US20040076027A1
公开(公告)日：2004-04-22
申请号：US10434207
申请日：2003-05-09
发明人： Chin-Chang Wu , Hurng-Liang Chou , Nan-Ying Shen , Yao-Jen Chang
IPC分类号： H02M001/00
CPC分类号： H02M3/1584
摘要： A control method for the parallel-connected power converters includes a control circuit comprising a voltage feedback circuit and a current feed-forward circuit. The voltage feedback circuit, consisting of a voltage regulated control circuit and a waveform control circuit, is used to control the power converter's output voltage with constant amplitude and low total harmonic distortion. By adjusting the gain of waveform control circuit, it can regulate the current distribution among the parallel-connected power converters. The current feed-forward circuit separates the power converter's output current into the fundamental component and the harmonic component, and amplifies them by different gain. The amplified fundamental component acts as a fundamental resistor to suppress the circulating current among the parallel-connected power converters, and the amplified harmonic component acts as a harmonic damper for preventing from high frequency oscillation generated by the L-C filter.
摘要翻译： 并联电力转换器的控制方法包括：电压反馈电路和电流前馈电路的控制电路。 电压反馈电路由电压调节控制电路和波形控制电路组成，用于以恒定幅度和低总谐波失真来控制功率转换器的输出电压。 通过调整波形控制电路的增益，可以调节并联电源转换器之间的电流分布。 电流前馈电路将功率转换器的输出电流分为基波分量和谐波分量，并通过不同的增益进行放大。 放大的基波分量作为基波电阻来抑制并联功率转换器中的循环电流，并且放大的谐波分量作为用于防止由L-C滤波器产生的高频振荡的谐波阻尼器。
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公开(公告)号：US07398336B2
公开(公告)日：2008-07-08
申请号：US11016744
申请日：2004-12-21
申请人： Ya-Tsung Feng , Ming-Hung Chueh , Yu-Shan Liu , Yao-Jen Chang
发明人： Ya-Tsung Feng , Ming-Hung Chueh , Yu-Shan Liu , Yao-Jen Chang
IPC分类号： G06F3/00
CPC分类号： G06F13/4072 , G06F13/4004 , Y10T307/74 , Y10T307/937
摘要： A switching device for RS-232 serial port and USB serial port is adapted to simultaneously provide a RS-232 serial port and a USB serial port for a micro-processor with a single USART. The switching device can automatically switch to select either of the RS-232 serial port or the USB serial port as a main interface for communicating with other external computer facilities and related peripheries. When one of the serial ports is selected as the main communication interface to communicate with one of external computers, the other one serial port thereof still can transmit signals from the micro-processor to another computer through its transmitting data pin (TXD).
摘要翻译： 用于RS-232串行端口和USB串行端口的开关设备适用于同时为单个USART的微处理器提供RS-232串行端口和USB串行端口。 开关设备可以自动切换，选择RS-232串行端口或USB串口作为与其他外部计算机设备及相关外围设备通信的主界面。 当选择其中一个串行端口作为与外部计算机之一进行通信的主要通信接口时，其另一个串行端口仍然可以通过其发送数据引脚（TXD）将信号从微处理器传输到另一台计算机。
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5.发明申请Maxium power point tracking method and tracking device thereof for a solar power system 有权用于太阳能发电系统的最大功率点跟踪方法及其跟踪装置公开(公告)号：US20070290668A1
公开(公告)日：2007-12-20
申请号：US11541739
申请日：2006-10-03
IPC分类号： G05F5/00
CPC分类号： G05F1/67 , H02M1/42 , H02M3/157 , Y02B70/12 , Y10S323/906
摘要： A maximum power point tracking method, applied to a tracking device, employs a DC/DC converter connecting with a solar cell array, and including a controller actuating the DC/DC converter to perform an active resistance characteristic; a maximum power point tracking circuit adjusting the active resistance of the DC/DC converter; monitoring a change of an output power of the solar cell array in determining a direction for adjusting the active resistance of the DC/DC converter; and the maximum power point tracking circuit repeatedly adjusting the active resistance of the DC/DC converter. If the change of the output power of the solar cell array is positive, the active resistance of the DC/DC converter is adjusted in the same direction; but, conversely, if the change of the output power of the solar cell array is negative, the active resistance of the DC/DC converter is adjusted in an opposite direction.
摘要翻译： 应用于跟踪装置的最大功率点跟踪方法采用与太阳能电池阵列连接的DC / DC转换器，并且包括致动DC / DC转换器以执行有源电阻特性的控制器; 最大功率点跟踪电路，调整DC / DC转换器的有效电阻; 在确定用于调节DC / DC转换器的有效电阻的方向的同时监视太阳能电池阵列的输出功率的变化; 并且最大功率点跟踪电路重复调整DC / DC转换器的有效电阻。 如果太阳能电池阵列的输出功率的变化为正，则DC / DC转换器的有效电阻在相同的方向上被调整; 但是相反，如果太阳能电池阵列的输出功率的变化为负，则DC / DC转换器的有效电阻在相反的方向上被调节。
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6.发明申请Control method of AC/DC power converter for input current harmonic suppression 有权用于输入电流谐波抑制的AC / DC电源转换器的控制方法公开(公告)号：US20060244426A1
公开(公告)日：2006-11-02
申请号：US11332376
申请日：2006-01-17
申请人： Chin-Chang Wu , Hung-Liang Chou , Min-Sheng Huang , Wen-Jet Hou
发明人： Chin-Chang Wu , Hung-Liang Chou , Min-Sheng Huang , Wen-Jet Hou
IPC分类号： G05F1/70
摘要： A harmonic-suppressing AC/DC power converter employs a control method for permitting the AC/DC power converter only to detect an input AC current and an output DC voltage. The control method can control the AC side of the AC/DC power converter to generate a voltage which is proportional to the input AC current. Thereby, the AC/DC power converter acts as a virtual resistor having a linear resistance characteristic. Accordingly, the input AC current of the AC/DC power converter can be controlled to approximate nearly as a sinusoidal wave with the performance of high input power factor and low input harmonic current.
摘要翻译： 谐波抑制AC / DC电力转换器采用控制方法，仅允许AC / DC电力转换器检测输入的交流电流和输出的直流电压。 该控制方法可以控制AC / DC电力转换器的AC侧产生与输入交流电流成比例的电压。 因此，AC / DC功率转换器充当具有线性电阻特性的虚拟电阻器。 因此，可以将AC / DC功率转换器的输入交流电流控制为近似为具有高输入功率因数和低输入谐波电流的正弦波。
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公开(公告)号：US06982546B2
公开(公告)日：2006-01-03
申请号：US10646755
申请日：2003-08-25
申请人： Chin-Chang Wu , Hurng-Liang Chou , Wen-Pin Hsu , Yao-Jen Chang
发明人： Chin-Chang Wu , Hurng-Liang Chou , Wen-Pin Hsu , Yao-Jen Chang
IPC分类号： G05F1/70
CPC分类号： G05F1/70
摘要： A hybrid reactive power compensation device comprises a passive type reactive power compensator and an active type reactive power compensator serially connected thereto. The passive type reactive power compensator is an AC power capacitor adapted to provide the reactive power that reduces capacity of the active type reactive power compensator. The active type reactive power compensator comprises a power converter, a DC capacitor, a high-frequency ripple filter and a controller. The hybrid reactive power compensation device can supply a linearly adjustable reactive power within a predetermined range, and is adapted to supply a current with a nearly sinusoidal waveform. Therefore, it can avoid the destruction of AC power capacitor caused by the power resonance.
摘要翻译： 混合无功功率补偿装置包括无源式无功功率补偿器和与其串联的有源型无功功率补偿器。 无源型无功功率补偿器是适于提供无功功率的AC功率电容器，其降低有源型无功功率补偿器的容量。 有源型无功补偿器包括功率转换器，直流电容器，高频纹波滤波器和控制器。 混合无功补偿装置可以在预定范围内提供可线性调节的无功功率，并且适于提供具有接近正弦波形的电流。 因此，可以避免由功率谐振引起的交流电源电容的破坏。
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公开(公告)号：US06906501B2
公开(公告)日：2005-06-14
申请号：US10434207
申请日：2003-05-09
申请人： Chin-Chang Wu , Hurng-Liang Chou , Nan-Ying Shen , Yao-Jen Chang
发明人： Chin-Chang Wu , Hurng-Liang Chou , Nan-Ying Shen , Yao-Jen Chang
CPC分类号： H02M3/1584
摘要： A control method for the parallel-connected power converters includes a control circuit comprising a voltage feedback circuit and a current feed-forward circuit. The voltage feedback circuit, consisting of a voltage regulated control circuit and a waveform control circuit, is used to control the power converter's output voltage with constant amplitude and low total harmonic distortion. By adjusting the gain of waveform control circuit, it can regulate the current distribution among the parallel-connected power converters. The current feed-forward circuit separates the power converter's output current into the fundamental component and the harmonic component, and amplifies them by different gain. The amplified fundamental component acts as a fundamental resistor to suppress the circulating current among the parallel-connected power converters, and the amplified harmonic component acts as a harmonic damper for preventing from high frequency oscillation generated by the L-C filter.
摘要翻译： 并联电力转换器的控制方法包括：电压反馈电路和电流前馈电路的控制电路。 电压反馈电路由电压调节控制电路和波形控制电路组成，用于以恒定幅度和低总谐波失真来控制功率转换器的输出电压。 通过调整波形控制电路的增益，可以调节并联电源转换器之间的电流分布。 电流前馈电路将功率转换器的输出电流分为基波分量和谐波分量，并通过不同的增益进行放大。 放大的基波分量作为基波电阻来抑制并联功率转换器中的循环电流，并且放大的谐波分量作为用于防止由L-C滤波器产生的高频振荡的谐波阻尼器。
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公开(公告)号：US20030169109A1
公开(公告)日：2003-09-11
申请号：US10331766
申请日：2002-12-31
发明人： Hurng Liang Chou , Chin Chang Wu , Ya Tsung Feng , Yao Jen Chang
IPC分类号： H03F001/26
摘要： An active harmonic suppression equipment is consisted of a dc capacitor, a power converter, a serially connected inductor/capacitor set, a C-R-C filter set and a control circuit. The dc capacitor operates as an energy storage device and supplies a dc voltage, and the power converter electrically connected thereto is used to convert the dc voltage into a compensating voltage. The inductor/capacitor set and the C-R-C filter set are commonly converting the compensating voltage into a compensating current injecting into a power feeder in order to suppress harmonic currents generated by nonlinear loads, thereby adjusting an utility current to be approximated as a sine-wave.
摘要翻译： 主动谐波抑制设备由直流电容器，功率转换器，串联电感器/电容器组，C-R-C滤波器组和控制电路组成。 直流电容器用作能量存储装置并提供直流电压，并且与其电连接的功率转换器用于将直流电压转换成补偿电压。 电感器/电容器组和C-R-C滤波器组通常将补偿电压转换成馈电器中的补偿电流，以便抑制由非线性负载产生的谐波电流，从而调节公用电流近似为正弦波。
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公开(公告)号：US20070076451A1
公开(公告)日：2007-04-05
申请号：US11502515
申请日：2006-08-11
申请人： Chin-Chang Wu , Hung-Liang Chou , Wen-Pin Hsu , Yu-Ting Kuo , Ya-Tsung Feng
发明人： Chin-Chang Wu , Hung-Liang Chou , Wen-Pin Hsu , Yu-Ting Kuo , Ya-Tsung Feng
IPC分类号： H02M1/12
CPC分类号： H02J3/1842 , Y02E40/22
摘要： An active power conditioner, connecting with a load and a power source in parallel, includes a DC power capacitor, a power converter, a high-frequency filter and a control circuit. The control circuit detects the voltage of the DC power capacitor and the current of the power source, thereby performing a closed loop control to stabilize the voltage of the DC power capacitor and performing a feed forward control to generate a driving signal for driving the power converter. The power converter actuates the DC power capacitor to supply a current via the high-frequency filter to reduce the reactive and harmonic components of load current. The load is converted to the linear resistance characteristic, observed from the power source side.
摘要翻译： 与负载和电源并联连接的有源功率调节器包括直流电力电容器，功率转换器，高频滤波器和控制电路。 控制电路检测直流电力电容器的电压和电源的电流，由此执行闭环控制以稳定直流电力电容器的电压并执行前馈控制，以产生用于驱动功率转换器的驱动信号 。 电源转换器启动直流电源电容器，通过高频滤波器提供电流，以减少负载电流的无功和谐波分量。 从电源侧观察，负载转换为线性电阻特性。
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