A GaN-Based Microconverter Utilizing Fixed-Frequency BCM Control Method for PV Applications

Deshang Sha; Jiankun Zhang; Jiawen Wu

doi:10.1109/TIE.2017.2772159

A GaN-Based Microconverter Utilizing Fixed-Frequency BCM Control Method for PV Applications

Deshang Sha^*, Jiankun Zhang, Jiawen Wu

^*Corresponding author for this work

School of Automation

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

This paper introduces a novel boundary conduction mode (BCM) controlled microconverter for photovoltaic (PV) application in order to provide high conversion efficiency over a wide input voltage operating range. Within the wide input range for the PV panel, there is no need to change the operating modes according to the PV panel voltage. The leakage inductance current can work in BCM with fixed switching frequency. The operation mode analysis is given first. Then, the operating principle of the proposed BCM and its implementation are introduced. Loss breakdown of the prototype using GaN devices is analyzed and compared with the same voltage-rating silicon mosfets. A 300-W microconverter was fabricated and experimental results are provided to verify the effectiveness of the proposed BCM control.

Original language	English
Pages (from-to)	4771-4780
Number of pages	10
Journal	IEEE Transactions on Industrial Electronics
Volume	65
Issue number	6
DOIs	https://doi.org/10.1109/TIE.2017.2772159
Publication status	Published - Jun 2018

Keywords

Boundary conduction mode (BCM)
GaN devices
fixed frequency
micro-converter
photovoltaic (PV)
zero voltage switching (ZVS)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TIE.2017.2772159

Cite this

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title = "A GaN-Based Microconverter Utilizing Fixed-Frequency BCM Control Method for PV Applications",

abstract = "This paper introduces a novel boundary conduction mode (BCM) controlled microconverter for photovoltaic (PV) application in order to provide high conversion efficiency over a wide input voltage operating range. Within the wide input range for the PV panel, there is no need to change the operating modes according to the PV panel voltage. The leakage inductance current can work in BCM with fixed switching frequency. The operation mode analysis is given first. Then, the operating principle of the proposed BCM and its implementation are introduced. Loss breakdown of the prototype using GaN devices is analyzed and compared with the same voltage-rating silicon mosfets. A 300-W microconverter was fabricated and experimental results are provided to verify the effectiveness of the proposed BCM control.",

keywords = "Boundary conduction mode (BCM), GaN devices, fixed frequency, micro-converter, photovoltaic (PV), zero voltage switching (ZVS)",

author = "Deshang Sha and Jiankun Zhang and Jiawen Wu",

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AU - Sha, Deshang

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AU - Wu, Jiawen

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N2 - This paper introduces a novel boundary conduction mode (BCM) controlled microconverter for photovoltaic (PV) application in order to provide high conversion efficiency over a wide input voltage operating range. Within the wide input range for the PV panel, there is no need to change the operating modes according to the PV panel voltage. The leakage inductance current can work in BCM with fixed switching frequency. The operation mode analysis is given first. Then, the operating principle of the proposed BCM and its implementation are introduced. Loss breakdown of the prototype using GaN devices is analyzed and compared with the same voltage-rating silicon mosfets. A 300-W microconverter was fabricated and experimental results are provided to verify the effectiveness of the proposed BCM control.

AB - This paper introduces a novel boundary conduction mode (BCM) controlled microconverter for photovoltaic (PV) application in order to provide high conversion efficiency over a wide input voltage operating range. Within the wide input range for the PV panel, there is no need to change the operating modes according to the PV panel voltage. The leakage inductance current can work in BCM with fixed switching frequency. The operation mode analysis is given first. Then, the operating principle of the proposed BCM and its implementation are introduced. Loss breakdown of the prototype using GaN devices is analyzed and compared with the same voltage-rating silicon mosfets. A 300-W microconverter was fabricated and experimental results are provided to verify the effectiveness of the proposed BCM control.

KW - Boundary conduction mode (BCM)

KW - GaN devices

KW - fixed frequency

KW - micro-converter

KW - photovoltaic (PV)

KW - zero voltage switching (ZVS)

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A GaN-Based Microconverter Utilizing Fixed-Frequency BCM Control Method for PV Applications

Abstract

Keywords

UN SDGs

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