New CRM Topology for Zero Voltage Switching in Quadratic High Gain Boost Converter

Korada, Nikhil

doi:10.1109/ecce44975.2020.9235483

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…The transient voltage ringing across the diode D 1 can also be observed. This phenomenon is caused by the resonance between the junction capacitance of D 1 and the inductor L 2 when D 1 is turned off, and is an inherent issue of the method using blocking diode to achieve discontinuous inductor current (DCM) [29]. Although S 1 (DISO mode), S 2 (SIDO mode) and D o working under hard switching, their voltage stresses are reduced to half of the load voltage.…”

Section: Design Of Load Port Voltage Controller Parametersmentioning

confidence: 99%

Transformerless High-Gain Three-Port Converter With Low Voltage Stress and Reduced Switches for Standalone PV Systems

Qin

Qian

Soon

et al. 2022

IEEE Trans. Power Electron.

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This paper proposes a high gain transformer-less three-port converter (TPC) for standalone photovoltaic (PV) systems. The TPC is designed and developed based on a dualinductor high gain two-port converter by utilizing one of the buffer capacitors to derive the third part for PV input. A hybrid pulse frequency modulation (PFM) scheme unified with a pulse width modulation (PWM) control strategy is adopted, which realizes the maximum power point tracking (MPPT) control, load voltage regulation, and bidirectional energy flow at the battery port. The proposed TPC offers the unique advantages of high voltage gain, continuous battery port current, reduced power semiconductors, lower voltage stresses, the common ground shared by all ports, low-cost gate driver, and small size of the rear-end inductor. The working principle, steady-state characteristics, small signal models and control method, including design conditions, are comprehensively analyzed. The correctness of the theoretical analysis is verified by developing a 300W experimental prototype, which shows the maximum efficiency is 97.7%.

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Section: Design Of Load Port Voltage Controller Parametersmentioning

confidence: 99%