DC ripple current rejection in a bidirectional SiC single-phase AC-DC converter for V2G application

sridhar, Arjun raj prabu Andhra; Weise, Nathan

doi:10.1109/itec.2015.7165746

Cited by 11 publications

(3 citation statements)

References 30 publications

(23 reference statements)

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“…From equation (16), it can be seen that if ω r = ω L or ω r = 2ω L , where ω L is the grid frequency, then P r always has double grid frequency ripple power represented by 2ω L term. According to (16), if ω r = ω L is selected, the total ripple power can be written as (17)…”

Section: Parameter Design For Ripple Steering Circuitmentioning

confidence: 99%

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

et al. 2019

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The existence of the double grid frequency (100 Hz) ripple current in dc/ac dual active bridge (DAB) power converters can degrade their performance and as such these ripples need to be compensated. An active power decoupling method is proposed in this paper to attenuate the 100-Hz current ripple in single phase dc/ac DAB converters. Compared to other current ripple reduction methods for which additional switches are used, the proposed method does not require any additional switching components thus decreasing the system cost. In the proposed method, the existing switching devices of the primary side full bridge converter and an LLC circuit integrated to form a 100-Hz ripple current reduction circuit, which is controlled by regulating the duty cycle of the primary full bridge converter switching legs. The mathematical analysis and the circuit parameter design methods are proposed. In addition, a current sharing method is proposed to keep the currents of the inductors in the LLC circuit are balanced against any possible circuit parameter deviations. The effectiveness of the developed method is evaluated through the simulation and experimental tests.

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Section: Parameter Design For Ripple Steering Circuitmentioning

confidence: 99%

“…In (16), if P m , V dc and ω r are predetermined, C r can be calculated by substituting (22) into (21). Fig.…”

Section: Parameter Design For Ripple Steering Circuitmentioning

confidence: 99%

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

et al. 2019

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“…Therefore, four-quadrant switches, e.g., back-to-back source connected MOSFETs, have been used to realize all the switches as shown in Figure 5. In essence, either the input or output bridges could be treated as a matrix converter equipped with four-quadrant AC switches [31].…”

Section: Dab As a Switch-mode Natural Gyrator-revisitingmentioning

confidence: 99%

Insights into Dynamic Tuning of Magnetic-Resonant Wireless Power Transfer Receivers Based on Switch-Mode Gyrators

Saad

Alarcón

2018

Energies

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Magnetic-resonant wireless power transfer (WPT) has become a reliable contactless source of power for a wide range of applications. WPT spans different power levels ranging from low-power implantable devices up to high-power electric vehicles (EV) battery charging. The transmission range and efficiency of WPT have been reasonably enhanced by resonating the transmitter and receiver coils at a common frequency. Nevertheless, matching between resonance in the transmitter and receiver is quite cumbersome, particularly in single-transmitter multi-receiver systems. The resonance frequency in transmitter and receiver tank circuits has to be perfectly matched, otherwise power transfer capability is greatly degraded. This paper discusses the mistuning effect of parallel-compensated receivers, and thereof a novel dynamic frequency tuning method and related circuit topology and control is proposed and characterized in the system application. The proposed method is based on the concept of switch-mode gyrator emulating variable lossless inductors oriented to enable self-tunability in WPT receivers.

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