Topology Derivation of Nonisolated Three-Port DC–DC Converters From DIC and DOC

Wu, Hongfei; Sun, Kai; Ding, Shun; Xing, Yan

doi:10.1109/tpel.2012.2221746

Cited by 234 publications

(116 citation statements)

References 24 publications

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“…Non-isolated TPC topologies for renewable energy systems have been presented [10,11,12,13,14]. These type of implementations need additional switches and diodes in order to configure the power flow path among the three ports.…”

Section: System Specificationsmentioning

confidence: 99%

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Mira¹,

Knott²,

Andersen³

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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In locations far from the equator achieving high conversion efficiency in low-power solar systems is challenging due to low solar irradiance levels. This paper presents a high efficiency three-port converter (TPC) for light-to-light (LtL) applications where no direct solar conversion is required. The separation of the power flows allows to replace the conventional solution of two cascaded converters into a single structure with shared components. A loss distribution analysis of the proposed structure is performed, which shows very good match with the experimental results. A prototype of the TPC demonstrates high efficiency in both power flow paths. At low irradiation level, the photovoltaic to battery stage shows a peak efficiency of 99.1 % at at 1.5 W output power and the LED driver stage presents a peak efficiency of 97.3 % at 3 W output power.

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Section: System Specificationsmentioning

confidence: 99%

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Mira¹,

Knott²,

Andersen³

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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“…To synthesize the proposed converter, PSCs with generic switches are used, and the rules for the synthesis of multi-port converter proposed in [30] are utilized. The objective is to synthesize a Four Port Converter [31] with one source port Mode1 State1 These two similar structures can be reduced to a single structure that leads to a lack of controllability in both the V i and V b ports.…”

Section: A Synthesismentioning

confidence: 99%

Synthesis and Implementation of a Multi-Port DC/DC Converter for Hybrid Electric Vehicles

Santhosh¹,

Natarajan²,

Govindaraju³

2015

Journal of Power Electronics

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A non-isolated Multiple Input Converter (MIC) with an input port, two storage ports and a load port is proposed. The synthesis of the proposed four port converter with its switch realization is presented. A steady state analysis of each operating mode with a small-signal model is derived, and a stability analysis is done. A mode selection controller is proposed to automatically choose a specific operating mode based on the voltage levels of the different source and storage units. In addition, a voltage control loop is used to regulate the output voltage. A 200W prototype is built with a TMS320F28027 DSP controller to test the feasibility of the operating modes. Simulation and experimental results show the ability of the proposed converter to handle multiple inputs either individually or simultaneously.

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“…Authors claim lower component number, higher efficiency and power density in TPC topologies than in combined separate converters [6], [7]. Nevertheless, many TPC topologies need extra switches and diodes in order to configure the power flow path and to provide controllability [8]. In some topologies, there are switches that are not referenced to ground and need to be active the whole period, which complicates the drive circuitry.…”

Section: System Analysis and Specificationsmentioning

confidence: 99%

MOSFET loss evaluation for a low-power StandAlone photovoltaic-LED system

Mira

Knott

Andersen

2015

2015 IEEE 11th International Conference on Power Electronics and Drive Systems

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Abstract-This paper presents a performance evaluation and comparison of state-of-the-art low voltage Si MOSFETs for a stand-alone photovoltaic-LED Light to Light (LtL) system. The complete system is formed by two cascaded converters that will be optimized for a determined solar irradiation and LED illumination profiles. The comparison is performed based on dynamic characterization and evaluation of the devices energy loss at different current levels.

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Topology Derivation of Nonisolated Three-Port DC–DC Converters From DIC and DOC

Cited by 234 publications

References 24 publications

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Synthesis and Implementation of a Multi-Port DC/DC Converter for Hybrid Electric Vehicles

MOSFET loss evaluation for a low-power StandAlone photovoltaic-LED system

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