公开(公告)号：US20060146582A1

公开(公告)日：2006-07-06

申请号：US11312395

申请日：2005-12-21

申请人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

发明人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

IPC分类号： H02H7/10

CPC分类号： H02J3/00 ,  H02J2003/388

摘要： An islanding detection method is proposed to overcome the incapability of detecting islanding operations in accordance with prior arts. A distortion for causing a variation of an AC power system is performed, and an AC power system frequency and a voltage variation are detected as the bases for determining the occurrence of an islanding operation.

摘要翻译： 提出了一种孤岛检测方法，以克服根据现有技术检测孤岛作业的不适用性。 执行用于引起交流电力系统变化的失真，并且检测交流电力系统频率和电压变化作为用于确定孤岛作业的发生的基础。

公开(公告)号：US07275002B2

公开(公告)日：2007-09-25

申请号：US11435750

申请日：2006-05-18

申请人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

发明人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

IPC分类号： G01R21/00

CPC分类号： H02J3/38 ,  H02J2003/388

摘要： An islanding detection and protection method of a parallel-type power converter is proposed, which performs perturbation to a power system to detect the frequency of the system voltage and the variation of the magnitude of the negative-sequence voltage as the basis for deciding the occurrence of an islanding operation. When the system operates normally, the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage won't be affected by the perturbation. On the other hand, if an islanding operation occurs, this perturbation will cause an apparent drift of the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage. Through detection of this apparent drift, the perturbation can be amplified by means of positive feedback to quickly detect the islanding operation phenomenon and trigger the protection mechanism.

摘要翻译： 提出了并联型功率转换器的孤岛检测和保护方法，其对电力系统进行扰动，以检测系统电压的频率和负序电压的幅度的变化，作为决定发生的基础 的孤岛作战。 当系统正常运行时，系统电压的频率或相位和幅度以及负序电压的幅度不受扰动影响。 另一方面，如果发生孤岛化操作，该扰动将导致系统电压的频率或相位和幅度以及负序电压的大小的明显漂移。 通过检测这种明显的漂移，可以通过正反馈来放大扰动，以快速检测孤岛作用现象并触发保护机制。

公开(公告)号：US07466570B2

公开(公告)日：2008-12-16

申请号：US11312395

申请日：2005-12-21

申请人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

发明人： Pao-Chuan Lin ,  Yung-Fu Huang ,  Tain-Syh Luor

IPC分类号： H02J1/02

CPC分类号： H02J3/00 ,  H02J2003/388

摘要： An islanding detection method is proposed to overcome the incapability of detecting islanding operations in accordance with prior arts. A distortion for causing a variation of an AC power system is performed, and an AC power system frequency and a voltage variation are detected as the bases for determining the occurrence of an islanding operation.

摘要翻译： 提出了一种孤岛检测方法，以克服根据现有技术检测孤岛作业的不适用性。 执行用于引起交流电力系统变化的失真，并且检测交流电力系统频率和电压变化作为用于确定孤岛作业的发生的基础。

公开(公告)号：US20070143044A1

公开(公告)日：2007-06-21

申请号：US11435750

申请日：2006-05-18

申请人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

发明人： Yung-Fu Huang ,  Pao-Chuan Lin ,  Tain-Syh Luor

IPC分类号： G06F19/00

CPC分类号： H02J3/38 ,  H02J2003/388

摘要： An islanding detection and protection method of a parallel-type power converter is proposed, which performs perturbation to a power system to detect the frequency of the system voltage and the variation of the magnitude of the negative-sequence voltage as the basis for deciding the occurrence of an islanding operation. When the system operates normally, the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage won't be affected by the perturbation. On the other hand, if an islanding operation occurs, this perturbation will cause an apparent drift of the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage. Through detection of this apparent drift, the perturbation can be amplified by means of positive feedback to quickly detect the islanding operation phenomenon and trigger the protection mechanism.

公开(公告)号：US20080123381A1

公开(公告)日：2008-05-29

申请号：US11617566

申请日：2006-12-28

申请人： Yoshihiyo Konishi ,  Yung-Fu Huang ,  Pao-Chuan Lin

发明人： Yoshihiyo Konishi ,  Yung-Fu Huang ,  Pao-Chuan Lin

IPC分类号： H02M7/5387 ,  H02M7/537

CPC分类号： H02J3/382 ,  H02M7/48 ,  H02M2001/007

摘要： An inverter circuit and a control circuit thereof for converting DC power from the renewable energy or distributed energy into AC power so as to be fed into the AC utility power system according to related regulations. The inverter circuit comprises a buck-boost inverter, a DC-to-AC inverter comprising two half-bridge inverters, and a by-pass passive switch coupled to an input DC voltage and the positive terminal of a first DC voltage. The inverter circuit of the present invention prevents the switching loss of an active switch and the energy loss of a coupled inductor by use of the by-pass passive switch and improves the efficiency of the inverter circuit by use of voltage feed-forward compensation.

摘要翻译： 一种逆变器电路及其控制电路，用于将来自可再生能源或分布式能量的直流电力转换为交流电力，以便根据相关规定进入交流电力系统。 逆变器电路包括降压 - 升压逆变器，包括两个半桥逆变器的DC-AC逆变器和耦合到输入DC电压的旁路无源开关和第一DC电压的正极。 本发明的逆变器电路通过使用旁路无源开关来防止有源开关的开关损耗和耦合电感器的能量损耗，并且通过使用电压前馈补偿来提高逆变器电路的效率。

公开(公告)号：US07522437B2

公开(公告)日：2009-04-21

申请号：US11617566

申请日：2006-12-28

申请人： Yoshihiro Konishi ,  Yung-Fu Huang ,  Pao-Chuan Lin

发明人： Yoshihiro Konishi ,  Yung-Fu Huang ,  Pao-Chuan Lin

IPC分类号： H02M7/5387 ,  G05F1/00

CPC分类号： H02J3/382 ,  H02M7/48 ,  H02M2001/007

摘要： An inverter circuit and a control circuit thereof for converting DC power from the renewable energy or distributed energy into AC power so as to be fed into the AC utility power system according to related regulations. The inverter circuit comprises a buck-boost inverter, a DC-to-AC inverter comprising two half-bridge inverters, and a by-pass passive switch coupled to an input DC voltage and the positive terminal of a first DC voltage. The inverter circuit of the present invention prevents the switching loss of an active switch and the energy loss of a coupled inductor by use of the by-pass passive switch and improves the efficiency of the inverter circuit by use of voltage feed-forward compensation.

摘要翻译： 一种逆变器电路及其控制电路，用于将来自可再生能源或分布式能量的直流电力转换为交流电力，以便根据相关规定进入交流电力系统。 逆变器电路包括降压 - 升压逆变器，包括两个半桥逆变器的DC-AC逆变器和耦合到输入DC电压的旁路无源开关和第一DC电压的正极。 本发明的逆变器电路通过使用旁路无源开关来防止有源开关的开关损耗和耦合电感器的能量损耗，并且通过使用电压前馈补偿来提高逆变器电路的效率。

公开(公告)号：US20120146515A1

公开(公告)日：2012-06-14

申请号：US12962657

申请日：2010-12-08

申请人： Chao-Hsuan Chuang ,  Hung-Che Chou ,  Sheng-Chieh Wu ,  Pao-Chuan Lin

发明人： Chao-Hsuan Chuang ,  Hung-Che Chou ,  Sheng-Chieh Wu ,  Pao-Chuan Lin

IPC分类号： H05B37/03

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： A driving device for a LED module is provided. The driving device for the LED module includes a voltage converting unit, a LED module voltage detecting unit, and a switching signal generation unit. The voltage converting unit produces a driving voltage to drive the LED module according to a switching signal. The LED module voltage detecting unit divides the driving voltage to produce a comparison voltage. The switching signal generation unit receives the comparison voltage by a fault detection pin and compares a reference voltage and the comparison voltage to enable or disable the switching signal. After the switching signal is disabled, the switching signal generation unit further pulls up a voltage level of the fault detection pin to a logic high level voltage, so as to produce a fault notification signal to let the fault detection pin also have a function for fault notification.

摘要翻译： 提供了一种用于LED模块的驱动装置。 LED模块的驱动装置包括电压转换单元，LED模块电压检测单元和开关信号生成单元。 电压转换单元根据开关信号产生驱动电压以驱动LED模块。 LED模块电压检测单元分压驱动电压以产生比较电压。 开关信号发生单元通过故障检测引脚接收比较电压，并比较基准电压和比较电压，以使能或禁止开关信号。 开关信号禁止后，开关信号发生单元进一步将故障检测引脚的电压电平升高到逻辑高电平电压，以产生故障通知信号，使故障检测引脚也具有故障功能 通知。

公开(公告)号：US07714463B2

公开(公告)日：2010-05-11

申请号：US11675106

申请日：2007-02-15

申请人： Wei-Te Su ,  Pao-Chuan Lin ,  Yi-Shuo Huang ,  Yoshihiro Konishi

发明人： Wei-Te Su ,  Pao-Chuan Lin ,  Yi-Shuo Huang ,  Yoshihiro Konishi

IPC分类号： H02J3/00

CPC分类号： H02M7/48 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  H02J9/062 ,  Y02B10/72 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E10/763 ,  Y02P80/21 ,  Y10T307/50 ,  Y10T307/505 ,  Y10T307/511 ,  Y10T307/522 ,  Y10T307/636 ,  Y10T307/658 ,  Y10T307/696

摘要： A device for controlling a single-phase power conditioner for a renewable energy system is disclosed. The device comprises: a power system, providing alternating current (AC) utility power; a renewable energy system, using a natural resource so as to generate direct current (DC) power; a DC-to-DC converter, accepting the DC power generated by the renewable energy system so as to convert an input DC voltage of the DC power to an output DC voltage at a voltage level different from the DC input voltage; a grid-tied power conditioner, transforming voltage levels of the AC power and DC power; a controller, issuing a control signal for controlling the grid-tied power conditioner; and a load, consuming electricity by way of the grid-tied power conditioner.

摘要翻译： 公开了一种用于控制可再生能源系统的单相功率调节器的装置。 该装置包括：提供交流（AC）公用电力的电力系统; 一个可再生能源系统，使用自然资源产生直流（DC）电力; 接收由可再生能源系统产生的直流电力，以将直流电力的输入直流电压转换为不同于直流输入电压的电压电平的输出直流电压的DC-DC转换器; 并网功率调节器，转换交流电源和直流电源的电压电平; 控制器，发出用于控制并网功率调节器的控制信号; 和负载，通过并网功率调节器消耗电力。

公开(公告)号：US07652536B2

公开(公告)日：2010-01-26

申请号：US12068774

申请日：2008-02-12

申请人： Hung-Der Su ,  Jing-Meng Liu ,  An-Tung Chen ,  Pao-Chuan Lin

发明人： Hung-Der Su ,  Jing-Meng Liu ,  An-Tung Chen ,  Pao-Chuan Lin

IPC分类号： H03F3/45 ,  H03F1/14

CPC分类号： H03F1/26 ,  H03F1/083 ,  H03F3/45197 ,  H03F2203/45356

摘要： An amplifier circuit with internal zeros provides a second pole in addition to a first pole and two zeros such that the second pole can prevent excessive gain at high frequency, so as to have high-frequency noise under control.

摘要翻译： 具有内部零点的放大器电路除了第一极点和第二极点之外还提供第二极点，使得第二极点可以在高频下防止过高的增益，从而具有控制的高频噪声。

公开(公告)号：US20050029987A1

公开(公告)日：2005-02-10

申请号：US10718545

申请日：2003-11-24

申请人： Pao-Chuan Lin ,  Chun-Hsien Lee ,  Yi-Shuo Huang ,  Chung-Lin Lee

发明人： Pao-Chuan Lin ,  Chun-Hsien Lee ,  Yi-Shuo Huang ,  Chung-Lin Lee

IPC分类号： H02J7/00

CPC分类号： H02J7/0016

摘要： A battery energy balance circuit and a battery charging bypass circuit is disclosed for batteries being charged at the same time to be charged equally. When the terminal voltages of the batteries are different, a controllable power device switch in the circuit switches on and off at a high frequency in order to reduce the input current to the batteries with higher terminal voltages and to increase the input current to the batteries with lower terminal voltages, achieving the goal of equal charging. The disclosed energy balance circuit can avoid damages to the batteries as a result of overcharging. When the number of batteries increases, one can expand the system in a modularized way to prevent inconvenience of circuit designs.

摘要翻译： 公开了同时充电的电池同时充电的电池能量平衡电路和电池充电旁路电路。 当电池的端子电压不同时，电路中的可控功率器件开关以高频率接通和断开，以便降低具有较高端子电压的电池的输入电流并增加对电池的输入电流， 降低端电压，达到同等充电​​的目的。 公开的能量平衡电路可以避免由于过充电而导致的电池损坏。 当电池数量增加时，可以以模块化的方式扩展系统，以防止电路设计的不便。