Fully Digital BCM ZVS Hybrid Control for a Single-Phase Islanded Mode DC/AC Inverter

Deshang Sha; Jiaan Liang; Pengbo Yin

doi:10.1109/TIE.2026.3663719

Fully Digital BCM ZVS Hybrid Control for a Single-Phase Islanded Mode DC/AC Inverter

Deshang Sha^*
, Jiaan Liang
, Pengbo Yin

^*Corresponding author for this work

Beijing Institute of Technology

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

Abstract

—This article proposes a method for implementing a single-phase islanded mode DC/AC inverter with a combination of unipolar modulation and bipolar modulation without detection of high-frequency current under boundary conduction mode (BCM). The strategy proposed in this article does not require sampling the zero-crossing and boundary values of high-frequency currents. Instead, a feedforward voltage and current double closed-loop is introduced to control the switch of the high-frequency switching leg. The control strategy in this article can operate stably for loads with arbitrary power factors, and there is no need to adjust the control strategy and parameters. The modulation strategy adopts a combination of unipolar and bipolar methods to improve the output voltage total harmonic distortion of nonunit power factor loads. A 300 W single-phase inverter prototype was established to verify the feasibility and effectiveness of the control strategy.

Original language	English
Pages (from-to)	11577-11586
Number of pages	10
Journal	IEEE Transactions on Industrial Electronics
Volume	73
Issue number	8
DOIs	https://doi.org/10.1109/TIE.2026.3663719
Publication status	Published - 2026
Externally published	Yes

Keywords

DC–AC inverter
boundary conduction mode (BCM) operation
zero voltage switching (ZVS)

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10.1109/TIE.2026.3663719

Cite this

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title = "Fully Digital BCM ZVS Hybrid Control for a Single-Phase Islanded Mode DC/AC Inverter",

abstract = "{\textemdash}This article proposes a method for implementing a single-phase islanded mode DC/AC inverter with a combination of unipolar modulation and bipolar modulation without detection of high-frequency current under boundary conduction mode (BCM). The strategy proposed in this article does not require sampling the zero-crossing and boundary values of high-frequency currents. Instead, a feedforward voltage and current double closed-loop is introduced to control the switch of the high-frequency switching leg. The control strategy in this article can operate stably for loads with arbitrary power factors, and there is no need to adjust the control strategy and parameters. The modulation strategy adopts a combination of unipolar and bipolar methods to improve the output voltage total harmonic distortion of nonunit power factor loads. A 300 W single-phase inverter prototype was established to verify the feasibility and effectiveness of the control strategy.",

keywords = "DC{\textendash}AC inverter, boundary conduction mode (BCM) operation, zero voltage switching (ZVS)",

author = "Deshang Sha and Jiaan Liang and Pengbo Yin",

year = "2026",

doi = "10.1109/TIE.2026.3663719",

language = "English",

volume = "73",

pages = "11577--11586",

journal = "IEEE Transactions on Industrial Electronics",

issn = "0278-0046",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Fully Digital BCM ZVS Hybrid Control for a Single-Phase Islanded Mode DC/AC Inverter

AU - Sha, Deshang

AU - Liang, Jiaan

AU - Yin, Pengbo

PY - 2026

Y1 - 2026

N2 - —This article proposes a method for implementing a single-phase islanded mode DC/AC inverter with a combination of unipolar modulation and bipolar modulation without detection of high-frequency current under boundary conduction mode (BCM). The strategy proposed in this article does not require sampling the zero-crossing and boundary values of high-frequency currents. Instead, a feedforward voltage and current double closed-loop is introduced to control the switch of the high-frequency switching leg. The control strategy in this article can operate stably for loads with arbitrary power factors, and there is no need to adjust the control strategy and parameters. The modulation strategy adopts a combination of unipolar and bipolar methods to improve the output voltage total harmonic distortion of nonunit power factor loads. A 300 W single-phase inverter prototype was established to verify the feasibility and effectiveness of the control strategy.

AB - —This article proposes a method for implementing a single-phase islanded mode DC/AC inverter with a combination of unipolar modulation and bipolar modulation without detection of high-frequency current under boundary conduction mode (BCM). The strategy proposed in this article does not require sampling the zero-crossing and boundary values of high-frequency currents. Instead, a feedforward voltage and current double closed-loop is introduced to control the switch of the high-frequency switching leg. The control strategy in this article can operate stably for loads with arbitrary power factors, and there is no need to adjust the control strategy and parameters. The modulation strategy adopts a combination of unipolar and bipolar methods to improve the output voltage total harmonic distortion of nonunit power factor loads. A 300 W single-phase inverter prototype was established to verify the feasibility and effectiveness of the control strategy.

KW - DC–AC inverter

KW - boundary conduction mode (BCM) operation

KW - zero voltage switching (ZVS)

UR - https://www.scopus.com/pages/publications/105031938338

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DO - 10.1109/TIE.2026.3663719

M3 - Article

AN - SCOPUS:105031938338

SN - 0278-0046

VL - 73

SP - 11577

EP - 11586

JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

IS - 8

ER -

Fully Digital BCM ZVS Hybrid Control for a Single-Phase Islanded Mode DC/AC Inverter

Abstract

Keywords

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