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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：US07301787B2
公开(公告)日：2007-11-27
申请号：US11177337
申请日：2005-07-11
申请人： Chin-Chang Wu , Hung-Liang Chou , Ya-Tsung Feng , Wen-Pin Hsu , Yao-Jen Chang
发明人： Chin-Chang Wu , Hung-Liang Chou , Ya-Tsung Feng , Wen-Pin Hsu , Yao-Jen Chang
IPC分类号： H02M1/12
CPC分类号： H02J3/1842 , H02J3/01 , Y02E40/22 , Y02E40/40
摘要： An active type harmonic suppression apparatus, connected in parallel to a power feeder, supplies a compensation current for injecting into the power feeder such that a utility current of a power source is approached to a sinusoidal wave. The control circuit retrieves a load current, a utility current, an output current of the power converter, a power source voltage and a voltage of the dc power capacitor for calculating and sending a reference signal of compensation voltage to a pulse-width-modulation circuit which generates switching signals for the power converter. Furthermore, the harmonic suppression apparatus can provide a fixed or variable reactive power.
摘要翻译： 与供电器并联连接的有源谐波抑制装置向电力供给器提供用于注入的补偿电流，使得电源的公用电流接近正弦波。 控制电路检索负载电流，公用电流，功率转换器的输出电流，电源电压和直流电力电容器的电压，用于计算并向脉冲宽度调制电路发送补偿电压的参考信号 其产生用于功率转换器的开关信号。 此外，谐波抑制装置可以提供固定或可变无功功率。
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公开(公告)号：US20060044850A1
公开(公告)日：2006-03-02
申请号：US11177337
申请日：2005-07-11
申请人： Chin-Chang Wu , Hung-Liang Chou , Ya-Tsung Feng , Wen-Pin Hsu , Yao-Jen Chang
发明人： Chin-Chang Wu , Hung-Liang Chou , Ya-Tsung Feng , Wen-Pin Hsu , Yao-Jen Chang
IPC分类号： H02M1/12
CPC分类号： H02J3/1842 , H02J3/01 , Y02E40/22 , Y02E40/40
摘要： An active type harmonic suppression apparatus, connected in parallel to a power feeder, supplies a compensation current for injecting into the power feeder such that a utility current of a power source is approached to a sinusoidal wave. The control circuit retrieves a load current, a utility current, an output current of the power converter, a power source voltage and a voltage of the dc power capacitor for calculating and sending a reference signal of compensation voltage to a pulse-width-modulation circuit which generates switching signals for the power converter. Furthermore, the harmonic suppression apparatus can provide a fixed or variable reactive power.
摘要翻译： 与供电器并联连接的有源谐波抑制装置向电力供给器提供用于注入的补偿电流，使得电源的公用电流接近正弦波。 控制电路检索负载电流，公用电流，功率转换器的输出电流，电源电压和直流电力电容器的电压，用于计算并向脉冲宽度调制电路发送补偿电压的参考信号 其产生用于功率转换器的开关信号。 此外，谐波抑制装置可以提供固定或可变无功功率。
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公开(公告)号：US07345380B2
公开(公告)日：2008-03-18
申请号：US10878268
申请日：2004-06-29
申请人： Ya-Tsung Feng , Chin-Chang Wu , Hung-Liang Chou , Nan-Ying Shen , Kuo-Fang Huang , Yao-Jen Chang
发明人： Ya-Tsung Feng , Chin-Chang Wu , Hung-Liang Chou , Nan-Ying Shen , Kuo-Fang Huang , Yao-Jen Chang
CPC分类号： H02J9/062 , H02J2009/068 , Y10T307/615 , Y10T307/62 , Y10T307/696
摘要： A backup power supply system supplies power from a first ac power source in normal condition. Once the first ac power source is abnormal or fails, the system automatically turns off the first ac power source and turns on a second ac power source with null transfer time. When the first ac power source is normal, a dc/ac power inverter is controlled to supply an approximately null current such that a mechanical switch is allowed to be closed and no circulating current is generated between the first ac power source and the dc/ac power inverter. Since the mechanical switch is continuously closed, and requires no switching operation, the backup power supply system can supply the backup power with a null transfer time.
摘要翻译： 备用电源系统在正常状态下从第一交流电源供电。 一旦交流电源出现异常或故障，系统会自动关闭第一个交流电源，并以空的传输时间打开第二个交流电源。 当第一交流电源正常时，控制直流/交流电源逆变器以提供大致零电流，使得允许机械开关闭合，并且在第一交流电源和直流/交流之间不产生循环电流 电源逆变器。 由于机械开关连续关闭，无需切换操作，备用电源系统可以提供空转传送时间的备用电源。
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公开(公告)号：US06960901B2
公开(公告)日：2005-11-01
申请号：US10802936
申请日：2004-03-18
申请人： Chin-Chang Wu , Hung-Liang Chou , Ya-Tsung Feng , Chi-Nan Hsieh , Yao-Jen Chang
发明人： Chin-Chang Wu , Hung-Liang Chou , Ya-Tsung Feng , Chi-Nan Hsieh , Yao-Jen Chang
CPC分类号： H02M3/1582 , H02M7/797 , H02M2001/007
摘要： A bi-directional dc/dc power converter having a neutral terminal includes a first dc voltage terminal set and a second dc voltage terminal set. When the direction of power flow is from the first dc voltage terminal set to the second dc voltage terminal set, the Output voltage of power converter is the double of the input dc voltage. When the power flow direction is in reverse from the second dc voltage terminal set to the first dc voltage terminal set, the output voltage of power converter is half of the input dc voltage in this power flow direction.
摘要翻译： 具有中立端子的双向dc / dc电力转换器包括第一直流电压端子组和第二直流电压端子组。 当功率流的方向从第一直流电压端子设置到第二直流电压端子组时，功率转换器的输出电压是输入直流电压的两倍。 当功率流动方向与设定为第一直流电压端子组的第二直流电压端子相反时，功率转换器的输出电压在该功率流动方向上为输入直流电压的一半。
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公开(公告)号：US20050088043A1
公开(公告)日：2005-04-28
申请号：US10878268
申请日：2004-06-29
申请人： Ya-Tsung Feng , Chin-Chang Wu , Hung-Liang Chou , Nan-Ying Shen , Kuo-Fang Huang , Yao-Jen Chang
发明人： Ya-Tsung Feng , Chin-Chang Wu , Hung-Liang Chou , Nan-Ying Shen , Kuo-Fang Huang , Yao-Jen Chang
CPC分类号： H02J9/062 , H02J2009/068 , Y10T307/615 , Y10T307/62 , Y10T307/696
摘要： A backup power supply system supplies power from a first ac power source in normal condition. Once the first ac power source is abnormal or failed, the system automatically turns off the first ac power source and turns on a second ac power source with null transfer time. When the first ac power source is normal, a dc/ac power inverter is controlled to supply an approximately null current that a mechanical switch is allowed to being closed and no circulating current is generated between the first ac power source and the dc/ac power inverter. Since the mechanical switch is successively closed, and it requires no switching operation, the backup power supply system can supply the backup power with a null transfer time.
摘要翻译： 备用电源系统在正常状态下从第一交流电源供电。 一旦交流电源出现异常或故障，系统会自动关闭第一交流电源，并打开第二个交流电源，传输时间不变。 当第一交流电源正常时，控制直流/交流电源逆变器以提供近似为零的电流，使机械开关被允许闭合，并且在第一交流电源和直流/交流电源之间不产生循环电流 逆变器。 由于机械开关连续关闭，不需要切换操作，备用电源系统可以提供空转传送时间的备用电源。
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公开(公告)号：US20050212494A1
公开(公告)日：2005-09-29
申请号：US11044026
申请日：2005-01-28
申请人： Chin-Chang Wu , Hung-Liang Chou , Wen-Pin Hsu , Yao-Jen Chang
发明人： Chin-Chang Wu , Hung-Liang Chou , Wen-Pin Hsu , Yao-Jen Chang
CPC分类号： H02J3/1842 , Y02E40/22
摘要： A reactive power compensator device includes an AC capacitor and a small-capacity power converter serially connected thereto that avoid the problems of power resonance and harmonic current injection. The reactive power compensator device provides with compensation reactive power current with fixed amplitude or adjustable amplitude. The power converter permits one of power lines of a power system to be connected to either a positive or negative dc terminal of the power electronic switch set through no power electronic switch. Consequently, the number of the power electronic switches is reduced.
摘要翻译： 无功功率补偿装置包括交流电容器和串联连接的交流电容器和小容量功率转换器，其避免功率谐振和谐波电流注入的问题。 无功补偿装置提供具有固定幅度或幅度可调的无功功率电流补偿。 功率转换器允许电力系统的电力线之一通过无电力电子开关连接到电力电子开关组的正或负直流端子。 因此，功率电子开关的数量减少。
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公开(公告)号：US07183751B2
公开(公告)日：2007-02-27
申请号：US11044026
申请日：2005-01-28
申请人： Chin-Chang Wu , Hung-Liang Chou , Wen-Pin Hsu , Yao-Jen Chang
发明人： Chin-Chang Wu , Hung-Liang Chou , Wen-Pin Hsu , Yao-Jen Chang
IPC分类号： G05F1/70
CPC分类号： H02J3/1842 , Y02E40/22
摘要： A reactive power compensator device includes an AC capacitor and a small-capacity power converter serially connected thereto that avoid the problems of power resonance and harmonic current injection. The reactive power compensator device provides with compensation reactive power current with fixed amplitude or adjustable amplitude. The power converter permits one of power lines of a power system to be connected to either a positive or negative dc terminal of the power electronic switch set through no power electronic switch. Consequently, the number of the power electronic switches is reduced.
摘要翻译： 无功功率补偿装置包括交流电容器和串联连接的交流电容器和小容量功率转换器，其避免功率谐振和谐波电流注入的问题。 无功补偿装置提供具有固定幅度或幅度可调的无功功率电流补偿。 功率转换器允许电力系统的电力线之一通过无电力电子开关连接到电力电子开关组的正或负直流端子。 因此，功率电子开关的数量减少。
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公开(公告)号：US20050207197A1
公开(公告)日：2005-09-22
申请号：US11044025
申请日：2005-01-28
申请人： Hung-Liang Chou , Chin-Chang Wu , Wen-Pin Hsu , Yao-Jen Chang
发明人： Hung-Liang Chou , Chin-Chang Wu , Wen-Pin Hsu , Yao-Jen Chang
IPC分类号： H02M1/12
CPC分类号： H02M1/12
摘要： A power converter for a hybrid power filter includes a power electronic switch set and a DC capacitor. The power converter permits a power line of a power system to directly connect or connect through the passive power filter to a positive or a negative terminal of the DC capacitor of the power converter for free control of the power electronic switches. Consequently, the power converter has a lesser number of the power electronic switches that can reduce the manufacture cost.
摘要翻译： 用于混合电力滤波器的功率转换器包括电力电子开关组和直流电容器。 电力转换器允许电力系统的电力线路直接连接或通过无源电力滤波器连接到功率转换器的直流电容器的正或负端子，用于电力电子开关的自由控制。 因此，功率转换器具有较少数量的能够降低制造成本的电力电子开关。
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