公开(公告)号：US09450516B2

公开(公告)日：2016-09-20

申请号：US14198516

申请日：2014-03-05

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hsuang-Chang Chiang ,  Chao-Tsung Ma ,  Kuo-Kuang Jen ,  Yi-Lun Chen

IPC: H02J1/10 ,  H02M7/493

CPC classification number: H02M7/493 ,  H02J3/32 ,  H02J3/382 ,  Y02E70/30 ,  Y02P80/14 ,  Y10T307/352

Abstract: The present invention relates to an inverter system for energy-storing microgrid and a controlling method thereof, wherein the inverter system for energy-storing microgrid is integrated with a detecting module, a controlling and processing module, a visual resistor algorithmic processor, and a PWM signal generator. Moreover, the controlling and processing module is installed with a power-voltage reducing function and a reactive power-frequency reducing function for making the controlling and processing module be able to properly distribute the intensity and output ratio of all the output currents of the inverters according to the charge states of battery modules and load currents. Therefore, the current supply of each of the parallel connected inverters in the inverter system can be automatically distributed and modulated for effectively providing necessary electric power to each of connected loads, respectively.

Abstract translation: 本发明涉及一种用于储能微电网的逆变器系统及其控制方法，其中用于存储微电网的逆变器系统与检测模块，控制和处理模块，可视电阻算法处理器和PWM 信号发生器。 此外，控制和处理模块安装有降压功能和无功功率降频功能，使控制和处理模块能够根据变频器的所有输出电流的强度和输出比正确分配 到电池模块的充电状态和负载电流。 因此，可以自动分配和调制逆变器系统中的每个并联逆变器的电流供应，以有效地为每个连接的负载提供必要的电力。

公开(公告)号：US10038393B1

公开(公告)日：2018-07-31

申请号：US15801322

申请日：2017-11-02

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Kun-Feng Chen ,  Woei-Luen Chen ,  Yi-Lun Chen ,  Jung-Yang Wang

IPC: H02M7/537 ,  H02M7/53846 ,  H02S40/32 ,  H02M7/539

CPC classification number: H02M7/538466 ,  H02J3/383 ,  H02M7/5387 ,  H02M7/539 ,  H02S40/32

Abstract: The present invention discloses a single-phase non-isolated inverter, comprising: a first DC-side capacitor, a second DC-side capacitor, a first switch unit, a second switch unit, a third switch unit, a fourth switch unit, a fifth switch unit, a sixth switch unit, a seventh switch unit, and an eighth switch unit. When the single-phase non-isolated inverter is operated at a zero-voltage switching state, the seventh switch unit and the eighth switch unit are switched to short circuit for forming a short-circuit path between the bus lines. Briefly speaking, this novel single-phase non-isolated inverter has reactive power capability. In addition, according to an adjusting signal of a PI controller, micro controller of the single-phase non-isolated inverter is able to properly adjusts the duty cycle of a switch unit driving signal of the fifth switch unit and the sixth switch unit, so as to cancel the capacitor voltage unbalance between two DC-side capacitors.