A power decoupling control method for an isolated single-phase AC-to-DC converter based on a high-frequency cycloconverter

2018 ◽  
Vol 205 (1) ◽  
pp. 46-54
Author(s):  
Shohei Komeda ◽  
Hideaki Fujita
Keyword(s):  
High Frequency ◽  
Single Phase ◽  
Control Method ◽  
Decoupling Control ◽  
Power Decoupling

scholarly journals A Novel Power Decoupling Control Method to Eliminate the Double Line Frequency Ripple of Two Stage Single-Phase DC-AC Power Conversion Systems

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 931
Author(s):  
Saghir Amin ◽  
Hyun-Hwa Lee ◽  
Woojin Choi
Keyword(s):  
Single Phase ◽  
Control Method ◽  
Power Conversion ◽  
Decoupling Control ◽  
Two Stage ◽  
Double Line ◽  
Line Frequency ◽  
Front End ◽  
Ac Power ◽  
Power Decoupling

In two-stage single-phase inverters, inherent double line frequency ripple is present at both the input and output of the front-end converter. Generally, large electrolytic capacitors are used to eliminate this double line frequency ripple. It is well known that low frequency ripple shortens the lifespan of capacitors. Hence, the system reliability can get worse. In order to eliminate the double line frequency ripple, additional hardware combined with an energy storage device is required in most of the methods developed so far. In this paper, a novel power-decoupling control method is proposed to eliminate the double line frequency ripple at the front-end converter of two-stage single phase DC/AC power conversion systems. The proposed control algorithm is composed of two loops, a ripple compensation loop and an average voltage control loop, and no extra hardware is required. Since the proposed method does not require information from the phase-locked-loop (PLL) of the inverter, it is independent of inverter control. In order to verify the validity and feasibility of the proposed algorithm a 5 kW Dual Active Bridge (DAB) DC/DC converter and a single-phase inverter are implemented. The effectiveness of the proposed method is verified through the simulation and experimental results.

Enhanced Automatic-Power-Decoupling Control Method for Single-Phase AC-to-DC Converters

2018 ◽  
Vol 33 (2) ◽  
pp. 1816-1828 ◽  
Author(s):  
Sinan Li ◽  
Wenlong Qi ◽  
Siew-Chong Tan ◽  
S. Y. Hui
Keyword(s):  
Single Phase ◽  
Control Method ◽  
Decoupling Control ◽  
Power Decoupling

scholarly journals Power Decoupling Control for Single-Phase Grid-Tied PEMFC Systems With Virtual-Vector-Based MPC

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 55132-55143
Author(s):  
Wei Wang ◽  
Bin Liu ◽  
Yukun Hu ◽  
Zhouhua Li ◽  
Hui Wang ◽  
...  
Keyword(s):  
Single Phase ◽  
Decoupling Control ◽  
Power Decoupling

scholarly journals Evolution of Single Phase Photovoltaic Inverters

2012 ◽  
pp. 249-254
Author(s):  
Ramaprasad Panda ◽  
Ashok Kumar Tripathy
Keyword(s):  
High Frequency ◽  
Single Phase ◽  
Pv Modules ◽  
Power Decoupling ◽  
Power Stage

This brief review focuses on inverter technologies for connecting photovoltaic (PV) modules to a single-phase grid. The inverters are categorized into four classifications: 1) the number of power processing stages in cascade; 2) the type of power decoupling between the PV odule(s) and the single-phase grid; 3) whether they utilizes a transformer (either line or high frequency) or not; and 4) the type of grid-connected power stage. Various inverter topologies are presented, with issues related to grid connected & standalone applications

Generalized Power Decoupling Control for Single-Phase Differential Inverters With Nonlinear Loads

2019 ◽  
Vol 7 (2) ◽  
pp. 1137-1151 ◽  
Author(s):  
Wenli Yao ◽  
Yan Xu ◽  
Yi Tang ◽  
Poh Chiang Loh ◽  
Xiaobin Zhang ◽  
...  
Keyword(s):  
Single Phase ◽  
Decoupling Control ◽  
Nonlinear Loads ◽  
Power Decoupling
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