Control schemes for reducing second harmonic current in two-stage single-phase converter: An overview from DC-bus port-impedance characteristics

L Zhang, X Ruan - IEEE Transactions on Power Electronics, 2019‏ - ieeexplore.ieee.org
The instantaneous input and output power of two-stage single-phase converter are
imbalanced, resulting in the second harmonic current (SHC) in the dc-dc converter, dc …

Control strategies and power decoupling topologies to mitigate 2ω-ripple in single-phase inverters: A review and open challenges

AR Gautam, DM Fulwani, RR Makineni… - IEEE …, 2020‏ - ieeexplore.ieee.org
This paper provides a comprehensive review of the control approaches and the power-
decoupling topologies to mitigate-ripple problem in the single-phase inverters, its solutions …

Improving the stability of cascaded DC/DC converter systems via sha** the input impedance of the load converter with a parallel or series virtual impedance

X Zhang, X Ruan, QC Zhong - IEEE Transactions on Industrial …, 2015‏ - ieeexplore.ieee.org
Interactions between individually designed power subsystems in a cascaded system may
cause instability. This paper proposes an approach, which connects a virtual impedance in …

Ripple eliminator to smooth DC-bus voltage and reduce the total capacitance required

X Cao, QC Zhong, WL Ming - IEEE Transactions on Industrial …, 2014‏ - ieeexplore.ieee.org
Bulky electrolytic capacitors, which are often needed in dc systems to filter out voltage
ripples, considerably reduce power density and system reliability. In this paper, a ripple …

Second-harmonic current reduction for two-stage inverter with boost-derived front-end converter: Control schemes and design considerations

L Zhang, X Ruan, X Ren - IEEE Transactions on Power …, 2017‏ - ieeexplore.ieee.org
The instantaneous output power of the two-stage single-phase inverter pulsates at twice the
output frequency (2f o), generating notorious second-harmonic current (SHC) in the frontend …

Feed-forward scheme for an electrolytic capacitor-less AC/DC LED driver to reduce output current ripple

Y Yang, X Ruan, L Zhang, J He… - IEEE Transactions on …, 2013‏ - ieeexplore.ieee.org
In order to achieve high-efficiency, high-power-factor, high-reliability, and low-cost, a flicker-
free electrolytic capacitor-less single-phase ac/dc light emitting diode (LED) driver is …

Performance evaluation of the single-phase split-source inverter using an alternative DC–AC configuration

A Abdelhakim, P Mattavelli, P Davari… - IEEE Transactions on …, 2017‏ - ieeexplore.ieee.org
This paper investigates and evaluates the performance of a single-phase split-source
inverter (SSI), where an alternative unidirectional dc-ac configuration is used. Such …

On the reduction of second harmonic current and improvement of dynamic response for two-stage single-phase inverter

G Zhu, X Ruan, L Zhang, X Wang - IEEE Transactions on Power …, 2014‏ - ieeexplore.ieee.org
Two-stage single-phase inverters have been widely used as they can achieve voltage
matching and galvanic isolation between the input and output. Due to the pulsating output …

Low-frequency input current ripple reduction based on load current feedforward in a two-stage single-phase inverter

Y Shi, B Liu, S Duan - IEEE transactions on power electronics, 2015‏ - ieeexplore.ieee.org
A large amount of ripple at twice the output frequency will emerge in the input current due to
the pulsating output power in a two-stage single-phase inverter. To reduce the low …

Current sensorless control for dual active bridge DC–DC converter with estimated load-current feedforward

F **ong, J Wu, Z Liu, L Hao - IEEE Transactions on Power …, 2017‏ - ieeexplore.ieee.org
This paper proposes a current sensorless control strategy for the dual active bridge (DAB)
converter with nonlinear disturbance observer (NDO)-based load current feedforward. The …