Power decoupling methods for single-phase three-poles AC/DC converters

Chao, Kuo-Hen; Cheng, Po-Tai

doi:10.1109/ecce.2009.5315961

Cited by 24 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to reduce the dc capacitor bank, a great deal of research has been done on active power decoupling methods [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. The basic idea is using extra energy-storage components such as capacitor or inductor, which permits much larger fluctuation of the voltage or current, to balance the 2ω ripple power.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

DC Capacitor-Less Inverter for Single-Phase Power Conversion With Minimum Voltage and Current Stress

Chen

Liu

Peng

2015

IEEE Trans. Power Electron.

117

View full text Add to dashboard Cite

Single-phase power conversion such as PWM rectifier, grid connected PV inverter system, static synchronous compensator ( STATCOM ) all can be implemented by an H-bridge inverter and a large electrolytic dc capacitor to absorb the ripple power pulsating at twice the line frequency (2ω ripple power). This paper proposed a dc capacitor-less inverter for H-bridge with minimum voltage and current stress. By adding another phase leg to control an ac capacitor, the 2ω ripple power can be absorbed by the capacitor and theoretically 2ω ripples to the dc capacitor can be eliminated completely. The H-bridge and the addition phase leg can be analyzed together as an unbalanced three phase system. By adopting SVPWM control and choosing the optimum ac capacitance and the voltage reference, the voltage and current stress of the switches can be minimized to the same as the conventional H-bridge. The size of capacitor is reduced by 10 times compared to the conventional H-bridge system. Simulation and experimental results are shown to prove the effectiveness of the proposed dc capacitor-less inverter and active power decoupling method.PR controller parameters are as follows: k p =8, k r =11,  c =25, and the bode plot is shown in Fig. 8 (b).Accordingly, the transfer function from ac capacitor current reference to ac capacitor current is:0885-8993 (c)

show abstract

Section: Introductionmentioning

confidence: 99%

“…1 (a), the energy-storage capacitor is connected to dc link and the capacitor voltage can only be unipolar [9][10][11]. If the capacitor voltage reference is a full-wave rectified sine wave, the 2ω ripple power can be fully transferred to the capacitor.…”

Section: Introductionmentioning

confidence: 99%

DC Capacitor-Less Inverter for Single-Phase Power Conversion With Minimum Voltage and Current Stress

Chen

Liu

Peng

2015

IEEE Trans. Power Electron.

117

View full text Add to dashboard Cite

show abstract

“…In order to reduce the dc capacitor bank, a great deal of research has been done on active power decoupling methods [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The basic idea is using extra energy-storage components such as capacitor or inductor, which permits much larger fluctuation of the voltage or current, to balance the 2ω ripple power.…”

Section: Introductionmentioning

confidence: 99%

“…1 (a), the energy-storage capacitor is connected to DC link and the capacitor voltage can only be unipolar [4][5][6]. If the capacitor voltage reference is a full-wave rectified sine wave, the 2ω ripple power can be fully transferred to the capacitor.…”

Section: Introductionmentioning

confidence: 99%

Generalized active power decoupling method for H-bridge with minimum voltage and current stress

Chen

Liang

Peng

2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

Single-phase PWM rectifier, grid connected PV inverter system, static synchronous compensator (STATCOM) all can be implemented by an H-bridge inverter and a large electrolytic dc capacitor to absorb the ripple power pulsating at twice the line frequency (2ω ripple power). This paper proposed a generalized active power decoupling method for Hbridge with minimum voltage and current stress. By adding another phase leg to control an ac capacitor, the 2ω ripple power can be absorbed by the capacitor and theoretically 2ω ripples to the dc capacitor can be eliminated completely. The H-bridge and the addition phase leg can be analyzed together as an unbalanced three phase system. By adopting SVPWM control and choosing the optimum ac capacitance and the capacitor voltage reference, the voltage and current stress of the switches can be minimized to the same as the conventional H-bridge. The size of capacitor is reduced by 10 times compared to the conventional H-bridge system. Simulation and experimental results are shown to prove the effectiveness of the proposed active power decoupling method.

show abstract

Efficiency improvement of a DC/AC converter with the power decoupling capability

Lee

Chen

et al. 2012

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

View full text Add to dashboard Cite

Power decoupling methods for single-phase three-poles AC/DC converters

Cited by 24 publications

References 8 publications

DC Capacitor-Less Inverter for Single-Phase Power Conversion With Minimum Voltage and Current Stress

DC Capacitor-Less Inverter for Single-Phase Power Conversion With Minimum Voltage and Current Stress

Generalized active power decoupling method for H-bridge with minimum voltage and current stress

Efficiency improvement of a DC/AC converter with the power decoupling capability

Contact Info

Product

Resources

About