Analysis, control and design of a long-lifetime AC-DC bus converter within a nanogrid

Hao Wu; Siu Chung Wong; Chi Kong Tse; Qianhong Chen

doi:10.1109/APEC.2015.7104599

Analysis, control and design of a long-lifetime AC-DC bus converter within a nanogrid

Hao Wu, Siu Chung Wong, Chi Kong Tse, Qianhong Chen

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

6 Citations (Scopus)

Abstract

In an AC-DC hybrid bus nanogrid, a bidirectional converter is commonly used to transfer energy between the single-phase AC system and the DC system with stable operation and long lifetime. Therefore, the single-phase AC-DC converter should be designed to avoid using the short lifetime electrolytic capacitor. In this paper, a bidirectional single-phase AC-DC PWM converter using an additional line-level AC storage capacitor as the AC-DC power balancing device is proposed. A condition for zero ripple DC bus voltage is established such that a small DC bus capacitor can be used. Both the AC-DC power balancing and DC bus filtering capacitors can be designed small without using electrolytic capacitor in order to extend the converter lifetime. A control strategy that minimizes the size of capacitance is proposed, analyzed and verified. Finally, the analysis is verified by numerical simulations and experimental measurements.

Original language	English
Title of host publication	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1855-1860
Number of pages	6
DOIs	https://doi.org/10.1109/APEC.2015.7104599
Publication status	Published - 1 Jan 2015
Event	30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte Convention Center, Charlotte, United States Duration: 15 Mar 2015 → 19 Mar 2015

Conference

Conference	30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/Territory	United States
City	Charlotte
Period	15/03/15 → 19/03/15

ASJC Scopus subject areas

Electrical and Electronic Engineering

More information

10.1109/APEC.2015.7104599

Cite this

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title = "Analysis, control and design of a long-lifetime AC-DC bus converter within a nanogrid",

abstract = "In an AC-DC hybrid bus nanogrid, a bidirectional converter is commonly used to transfer energy between the single-phase AC system and the DC system with stable operation and long lifetime. Therefore, the single-phase AC-DC converter should be designed to avoid using the short lifetime electrolytic capacitor. In this paper, a bidirectional single-phase AC-DC PWM converter using an additional line-level AC storage capacitor as the AC-DC power balancing device is proposed. A condition for zero ripple DC bus voltage is established such that a small DC bus capacitor can be used. Both the AC-DC power balancing and DC bus filtering capacitors can be designed small without using electrolytic capacitor in order to extend the converter lifetime. A control strategy that minimizes the size of capacitance is proposed, analyzed and verified. Finally, the analysis is verified by numerical simulations and experimental measurements.",

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Wu, H, Wong, SC, Tse, CK & Chen, Q 2015, Analysis, control and design of a long-lifetime AC-DC bus converter within a nanogrid. in Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC., 7104599, Institute of Electrical and Electronics Engineers Inc., pp. 1855-1860, 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States, 15/03/15. https://doi.org/10.1109/APEC.2015.7104599

Analysis, control and design of a long-lifetime AC-DC bus converter within a nanogrid. / Wu, Hao; Wong, Siu Chung; Tse, Chi Kong et al.
Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. Institute of Electrical and Electronics Engineers Inc., 2015. p. 1855-1860 7104599.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - In an AC-DC hybrid bus nanogrid, a bidirectional converter is commonly used to transfer energy between the single-phase AC system and the DC system with stable operation and long lifetime. Therefore, the single-phase AC-DC converter should be designed to avoid using the short lifetime electrolytic capacitor. In this paper, a bidirectional single-phase AC-DC PWM converter using an additional line-level AC storage capacitor as the AC-DC power balancing device is proposed. A condition for zero ripple DC bus voltage is established such that a small DC bus capacitor can be used. Both the AC-DC power balancing and DC bus filtering capacitors can be designed small without using electrolytic capacitor in order to extend the converter lifetime. A control strategy that minimizes the size of capacitance is proposed, analyzed and verified. Finally, the analysis is verified by numerical simulations and experimental measurements.

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Analysis, control and design of a long-lifetime AC-DC bus converter within a nanogrid

Abstract

Conference

ASJC Scopus subject areas

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