Design of a reduced-order observer for Sensorless control of Dual-Active-Bridge converter

Nguyen Duy Dinh; Goro Fujita

doi:10.23919/IPEC.2018.8507888

Design of a reduced-order observer for Sensorless control of Dual-Active-Bridge converter

Nguyen Duy Dinh, Goro Fujita

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A reduced-order observer is developed in this paper. The target is for sensorless current control of Dual Active Bridge (DAB) converters. Inherent from some relevance researches, this research also uses the Fundamental Harmonic Approximation analysis to establish the observer model. The observer uses the Terminal 2 voltage as the only feedback signal. No current sensors are required. Experimental results show that the load current can be estimated with high accuracy. The load angle which represent the reactive power can also be estimated with the error less than ±5 degrees. The observer can be used for current mode control or voltage mode plus current feedforward control of DAB converters.

Original language	English
Title of host publication	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	363-369
Number of pages	7
ISBN (Electronic)	9784886864055
DOIs	https://doi.org/10.23919/IPEC.2018.8507888
Publication status	Published - 2018 Oct 22
Event	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan Duration: 2018 May 20 → 2018 May 24

Other

Other	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country	Japan
City	Niigata
Period	18/5/20 → 18/5/24

Keywords

Dual-active-bridge converter
frequency domain analysis
reduced-order observer
sensorless current control
single phase shift

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.23919/IPEC.2018.8507888

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Cite this

Dinh, N. D., & Fujita, G. (2018). Design of a reduced-order observer for Sensorless control of Dual-Active-Bridge converter. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 (pp. 363-369). [8507888] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/IPEC.2018.8507888

Design of a reduced-order observer for Sensorless control of Dual-Active-Bridge converter. / Dinh, Nguyen Duy; Fujita, Goro.

2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 363-369 8507888.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Dinh, ND & Fujita, G 2018, Design of a reduced-order observer for Sensorless control of Dual-Active-Bridge converter. in 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018., 8507888, Institute of Electrical and Electronics Engineers Inc., pp. 363-369, 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, Niigata, Japan, 18/5/20. https://doi.org/10.23919/IPEC.2018.8507888

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