2019
DOI: 10.1109/tpel.2018.2876346
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Abstract: The photovoltaic (PV) output voltage varies over a wide range depending on operating conditions. Thus, the PVconnected converters should be capable of handling a wide input voltage range while maintaining high efficiencies. This paper proposes a new series resonant dc-dc converter for PV microinverter applications. Compared with the conventional series resonant converter (SRC), a dual-mode rectifier (DMR) is configured on the secondary side, which enables a twofold voltage gain range for the proposed converter… Show more

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Cited by 59 publications
(25 citation statements)
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“…In particular, at medium and low load currents, E of f is mainly determined by E oss due to the small E of f,V I . This is because the two-dimensional electron gas (2DEG) conducting channel of a GaN HEMT can be fast cut off before the voltage of the nonlinear output capacitance, i.e., v ds , rises significantly [52].…”
Section: A Swtiching Loss Breakdown Of Gan Hemtsmentioning
confidence: 99%
“…In particular, at medium and low load currents, E of f is mainly determined by E oss due to the small E of f,V I . This is because the two-dimensional electron gas (2DEG) conducting channel of a GaN HEMT can be fast cut off before the voltage of the nonlinear output capacitance, i.e., v ds , rises significantly [52].…”
Section: A Swtiching Loss Breakdown Of Gan Hemtsmentioning
confidence: 99%
“…Finally, the transfer functions can be formulated from the state-space small-signal AC model presented in (11), which leads to:…”
Section: Step 4: Calculating the Small-signal Ac Models And Transfer mentioning
confidence: 99%
“…The conventional series resonant DC-DC converter offers the advantage of high efficiency as it can operate with zero-voltage switching [1]. However, it is not able to regulate a wide input voltage range with a fixed-frequency phase-shift control [11]. Coupled inductor-based DC-DC converters with a clamp circuit have some features such as high voltage gain, high efficiency, leakage inductor energy recycling, and low voltage stress on the switches.…”
Section: Introductionmentioning
confidence: 99%
“…Such an arrangement can result in efficient operation with the most typical Si PV modules containing 60-and 72-cell ( Figure 2b). Recently, the variable dc-link voltage control was applied in several state-of-the-art two-stage microinverters [17,18] and battery chargers [19]. It resulted in higher efficiencies, extended reliability, and good compatibility with different PV modules [20,21].…”
Section: Link Voltage Control In Two-stage Pv Microinvertersmentioning
confidence: 99%