A novel active power decoupling method for single-phase photovoltaic or energy storage applications

2012 ◽  
Author(s):  
Shengfang Fan ◽  
Yaosuo Xue ◽  
Kai Zhang
Keyword(s):  
Energy Storage ◽  
Single Phase ◽  
Active Power ◽  
Decoupling Method ◽  
Power Decoupling ◽  
Energy Storage Applications

Active Power Decoupling Method for Single-Phase Current-Source Rectifier With No Additional Active Switches

2016 ◽  
Vol 31 (8) ◽  
pp. 5644-5654 ◽  
Author(s):  
Yao Sun ◽  
Yonglu Liu ◽  
Mei Su ◽  
Xin Li ◽  
Jian Yang
Keyword(s):  
Single Phase ◽  
Current Source ◽  
Active Power ◽  
Decoupling Method ◽  
Phase Current ◽  
Power Decoupling

scholarly journals Active Power Decoupling Design of a Single-Phase AC–DC Converter

Electronics ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 841 ◽  
Author(s):  
Mingjie Qiu ◽  
Ping Wang ◽  
Huakun Bi ◽  
Zhishuang Wang
Keyword(s):  
Single Phase ◽  
Control Method ◽  
Active Power ◽  
Second Order ◽  
Voltage Source ◽  
Decoupling Method ◽  
Power Decoupling ◽  
Phase Converter ◽  
Dc Bus ◽  
Bus Voltage

The second-order ripple power of single-phase converter causes second-order ripple voltages on the DC bus. For eliminating second-order ripple components, passive power decoupling methods including DC bus electrolytic capacitors have some shortcomings, such as low power density and poor stability of converters. Thus, an active power decoupling method based on a single-phase converter is proposed in this paper. The control method, taking single-phase voltage source pulse width modulation (PWM) rectifier (single-phase VSR) as the basic converter and adopting a buck-boost power decoupling circuit, introduces second-order ripple of DC bus voltage into a power decoupling circuit. The ripple acts as compensation of the phase deviation between the command value and the actual value of the second-order ripple current. Therefore, estimation of the second-order ripple current is more accurate, the power decoupling circuit absorbs the second-order ripple power behind the H-bridge more completely, and the DC bus voltage ripple is effectively suppressed accordingly. Finally, experimental results of the single-phase VSR are given to verify the validity of the proposed method.

scholarly journals An Active Power Decoupling Method for Single Phase DC/AC DAB Converters

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 12964-12972
Author(s):  
Jiang You ◽  
D. Mahinda Vilathgamuwa ◽  
Negareh Ghasemi ◽  
Wynand Louis Malan
Keyword(s):  
Single Phase ◽  
Active Power ◽  
Decoupling Method ◽  
Power Decoupling

scholarly journals A generalized switching function-based SVM algorithm of single-phase three-leg converter with active power decoupling

2020 ◽  
Vol 10 (6) ◽  
pp. 6189
Author(s):  
Watcharin Srirattanawichaikul
Keyword(s):  
Single Phase ◽  
Power Converter ◽  
Active Power ◽  
Switching Function ◽  
Decoupling Method ◽  
Svm Algorithm ◽  
Modulation Techniques ◽  
Power Decoupling ◽  
Utility Grid ◽  
Control Part

In this paper, a generalized switching function-based space vector modulation (SVM) algorithm is presented and evaluated to minimize the dc voltage utilization and the ac utility grid current total harmonic distortion. This paper explores the control and modulation techniques of a single-phase three-leg converter with an active power decoupling method, where a generalized SVM algorithm is proposed and evaluated for easy implementation in a digital control platform. The active power decoupling method with the proposed converter can be achieved via dependent control and modulation techniques. The control method is separated into the ac active power control part and the dc power ripple control part, which can maintain a unity power factor at the ac utility grid and reduced the double-frequency ripple power effect on the dc-side. Simulation results validate the performance of the modulation algorithm and its control and demonstrate the feasibility of the proposed power converter, as well as the two mentioned operation modes of the power converter.

An Active Power-Decoupling Method for Single-Phase AC–DC Converters

2014 ◽  
Vol 10 (1) ◽  
pp. 461-468 ◽  
Author(s):  
Mei Su ◽  
Pan Pan ◽  
Xi Long ◽  
Yao Sun ◽  
Jian Yang
Keyword(s):  
Single Phase ◽  
Active Power ◽  
Decoupling Method ◽  
Power Decoupling
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