公开(公告)号：US20160099659A1

公开(公告)日：2016-04-07

申请号：US14566430

申请日：2014-12-10

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Po-Li CHEN ,  Pao-Chuan LIN ,  Ming-Hung YU

IPC: H02M7/44

CPC classification number: H02M7/44 ,  H02J3/385 ,  H02M7/48 ,  Y02E10/58

Abstract: An output power adjusting method is applied on an inverter. The inverter includes a capacitor to store direct current (DC) electricity provided by a photovoltaic (PV) module. At least the DC electricity provided by the PV module is converted into alternating current (AC) electricity. Determine whether a power value of the AC electricity exceeds a power threshold. When the AC electricity exceeds the power threshold, the inverter works in a continuous mode. When the AC electricity does not exceed the power threshold, the inverter works in a discontinuous mode where the PV module charges the capacitor. In the discontinuous mode, determine whether a voltage on the capacitor exceeds a reference voltage, and when the voltage on the capacitor exceeds the reference voltage, the DC electricity provided by the PV module and DC electricity in pulses provided by the capacitor are converted to the AC electricity.

Abstract translation: 输出功率调整方法应用在逆变器上。 逆变器包括用于存储由光伏（PV）模块提供的直流（DC）电的电容器。 至少由PV模块提供的直流电转换成交流（AC）电。 确定交流电的功率是否超过功率阈值。 当交流电超过功率阈值时，变频器工作在连续模式。 当交流电不超过功率阈值时，变频器工作在PV模块对电容充电的不连续模式。 在不连续模式下，确定电容器上的电压是否超过参考电压，当电容器上的电压超过参考电压时，由PV模块提供的直流电和由电容器提供的脉冲中的直流电转换为 交流电。

公开(公告)号：US20240097435A1

公开(公告)日：2024-03-21

申请号：US18347914

申请日：2023-07-06

Applicant: Industrial Technology Research Institute

Inventor： Po-Li CHEN ,  Shu-Syuan HUANG

IPC: H02H9/04

CPC classification number: H02H9/04

Abstract: A bypass seamless switching apparatus and a method thereof are provided, in which a controller sends a first control signal to control or switch a first relay to on/off state, sends a second control signal to control or switch a second relay to on/off state, and sends a switch signal to control or switch a bypass switch module to on/off state. When the controller is in failure mode or is disconnected, a driving power supply of a bypass circuit provides a driving signal to the bypass switch module to maintain or switch a switch of the bypass switch module to on state, so that the bypass switch module is in short-circuit state or short-circuit protection state, and a bypass side voltage of the bypass switch module is equal to or close to zero voltage, so as to execute bypass function or bypass seamless switching function of the bypass switch module.

公开(公告)号：US20140085937A1

公开(公告)日：2014-03-27

申请号：US13875986

申请日：2013-05-02

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Po-Li CHEN ,  Pao-Chuan LIN ,  Ming-Hung YU

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/34 ,  H02M3/33569 ,  H02M2001/342 ,  Y02B70/1491

Abstract: A DC-DC converter includes a power conversion circuit for converting a DC input voltage to a DC output voltage; and an active clamp circuit for soft switching a first active switching element of the power conversion circuit and recovering leakage inductance energy of a main transformer of the power conversion circuit, As such, the present disclosure provides a DC-DC converter that reduces the switching loss of the switching elements and effectively recovers the leakage inductance energy, thus increasing the conversion efficiency of the converter.

Abstract translation: DC-DC转换器包括用于将DC输入电压转换为DC输出电压的电力转换电路; 以及用于软开关功率转换电路的第一有源开关元件并且恢复功率转换电路的主变压器的漏电感能的有源钳位电路。因此，本公开提供了一种降低开关损耗的DC-DC转换器 的开关元件，有效地恢复了漏电感能量，从而提高了转换器的转换效率。

公开(公告)号：US20140078783A1

公开(公告)日：2014-03-20

申请号：US13705029

申请日：2012-12-04

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Shu-Syuan HUANG ,  Pao-Chuan LIN ,  Po-Li CHEN

IPC: H02M3/335

CPC classification number: H02M3/33576 ,  H02M7/5387 ,  Y02B70/1433

Abstract: A full-bridge quasi-resonant DC-DC converter is provided, including a transformer having a primary winding and a secondary winding, a full-bridge converting circuit electrically connected with the primary winding of the transformer, a resonant capacitor provided between the full-bridge converting circuit and the primary winding, a rectifier circuit electrically connected with the secondary winding of the transformer, and a resonant inductor connected in series with the rectifier circuit. Therefore, the full-bridge quasi-resonant DC-DC converter reduces the switching losses of the switching elements and effectively reduces the size of the converter, while increases the conversion efficiency.

Abstract translation: 提供了一种全桥准谐振DC-DC转换器，包括具有初级绕组和次级绕组的变压器，与变压器初级绕组电连接的全桥转换电路， 桥式变换电路和初级绕组，与变压器的次级绕组电连接的整流电路，以及与整流电路串联连接的谐振电感器。 因此，全桥准谐振DC-DC转换器可降低开关元件的开关损耗，有效降低转换器的体积，同时提高转换效率。