Active Power Decoupling for High-Power Single-Phase PWM Rectifiers

Li, Hongbo; Zhang, Kai; Zhao, Hui; Fan, Shengfang; Xiong, Jian

doi:10.1109/tpel.2012.2208764

Cited by 276 publications

(134 citation statements)

References 14 publications

Supporting

Mentioning

134

Contrasting

Order By: Relevance

“…Therefore, such an instantaneouspower-balance method will not fully compensate the actual ripple power, and usually some residual voltage ripple still exists at the DC output. In [14], a closed-loop method that is also instantaneous-power-balance-based, is proposed to compensate these deviations.…”

Section: Reference Generation For Power Decoupling a Possible Metmentioning

confidence: 99%

“…The H-bridge converter with switches Q1-Q4 and filter components L 1 and C dc accomplishes the original functions of active power factor correction (PFC) and DC voltage regulation, while the active filter comprising switches Q5 and Q6 are controlled to divert the ripple power from the DC side into a small external storage L f or/and C f to achieve power decoupling. Typically one terminal of the storage component is connected to the mid-point of the active filter switches (connection point of Q5 and Q6), while the other terminal is tied to either the AC side [9], [18], the ground [3], [19], or one leg of the H-bridge converter [10], [14]. The voltage or current waveforms of the storage component can be unipolar or bipolar, depending on circuit configuration.…”

Section: Introductionmentioning

confidence: 99%

“…ground [3], [19] (c) the phase leg of the H-bridge [10], [14]. unipolar operation, one active switch can be saved in the active filter.…”

Section: Introductionmentioning

confidence: 99%

“…It is formed simply by cascading an H-bridge converter with an active filter. Shunt active filtering [3], [8]- [10], [14], [15] and series active filtering [23], [24] are all possible candidates for configuration. The three topologies shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Integration of an Active Filter and a Single-Phase AC/DC Converter With Reduced Capacitance Requirement and Component Count

Tan

et al. 2016

IEEE Trans. Power Electron.

114

View full text Add to dashboard Cite

Abstract-Existing methods of incorporating an active filter into an AC/DC converter for eliminating electrolytic capacitors usually require extra power switches. This inevitably leads to an increased system cost and degraded energy efficiency. In this paper, a concept of active-filter integration for singlephase AC/DC converters is reported. The resultant converters can provide simultaneous functions of power factor correction (PFC), DC voltage regulation and active power decoupling for mitigating the low-frequency DC voltage ripple, without an electrolytic capacitor and extra power switch. To complement the operation, two closed-loop voltage-ripple-based reference generation methods are developed for controlling the energy storage components to achieve active power decoupling. Both simulation and experiment have confirmed the eligibility of the proposed concept and control methods in a 210 W rectification system comprising an H-bridge converter with a half-bridge active filter. Interestingly, the end converters (Type I and Type II) can be readily available using a conventional H-bridge converter with minor hardware modification. A stable DC output with merely 1.1% ripple is realized with two 50 μF film capacitors. For the same ripple performance, a 900 μF capacitor is required in conventional converters without an active filter. Moreover, it is found out that the active-filter integration concept might even improve the efficiency performance of the end converters as compared with the original AC/DC converter without integration.

show abstract

Section: Reference Generation For Power Decoupling a Possible Metmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…ground [3], [19] (c) the phase leg of the H-bridge [10], [14]. unipolar operation, one active switch can be saved in the active filter.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Integration of an Active Filter and a Single-Phase AC/DC Converter With Reduced Capacitance Requirement and Component Count

Tan

et al. 2016

IEEE Trans. Power Electron.

114

View full text Add to dashboard Cite

show abstract

“…On the other hand, if P PV is less than P o as in case 'B', the lack of power is compensated by the APDES. The input power of the APDES is described as (8). Using (8), the input current reference of the APDES can be obtained as (9).…”

Section: A Flyback Convertermentioning

confidence: 99%

A Study on PV AC-Module with Active Power Decoupling and Energy Storage System

Won¹,

Noh²,

Lim³

et al. 2016

Journal of Power Electronics

View full text Add to dashboard Cite

In general, electrolytic capacitors are used to reduce power pulsations on PV-panels. However, this can reduce the reliability of the PV AC-module system, because electrolytic capacitors have a shorter lifetime than PV-panels. In addition, PV-panels generate irregular power and inject it into the grid because the output power of a PV-panel depends on the surrounding conditions such as irradiation and temperature. To solve these problems, a grid-connected photovoltaic (PV) AC-module with active power decoupling and energy storage is proposed. A parallel bi-directional converter is connected to the AC module to reduce the output power pulsations of PV-panels. Thus, the electrolytic capacitor can be replaced with a film capacitor. In addition, the irregular output power due to the surrounding conditions can be regulated by using a parallel energy storage circuit. To maintain the discontinuous conduction mode at low irradiation, the frequency control method is adopted. The design method of the proposed converter and the operation principles are introduced. An experimental prototype rated at 125W was built to verify the performance of the proposed converter.

show abstract