Design and implementation of a microinverter for solar PV rooftops

Dome Sulong; Chuttchaval Jeraputra

doi:10.1109/ECTICon.2015.7206953

Design and implementation of a microinverter for solar PV rooftops

Dome Sulong
, Chuttchaval Jeraputra

Department of Electrical Engineering

Mahidol University

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

7 Citations (Scopus)

Abstract

This paper presents design and implementation of a microinverter for solar PV rooftops. The proposed microinverter consists of a flyback inverter and a dc active filter that can operate independently in parallel. The flyback inverter, controlled in digital peak current mode, regulates the full-wave rectified sinusoidal current, later which is alternately inverted and injected into the grid. The dc active filter regulates the smooth current/power drawn from a PV module by using cascaded PI controllers. The proposed topology has several advantages: 1) eliminating a bulky electrolytic capacitor at the input filter stage, 2) using a long lifetime and reliable film capacitor, 3) efficiently handling flyback transformer leakage energy. The design and control of the proposed topology are presented and discussed in detail. A 100W/220V/50Hz prototype is developed and tested. The experimental results show that the microinverter is capable of regulating the sinusoidal current fed into the grid, actively filtering the dc current/power and achieving reasonably high energy conversion efficiency.

Original language	English
Title of host publication	ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479979608
DOIs	https://doi.org/10.1109/ECTICon.2015.7206953
Publication status	Published - 17 Aug 2015
Event	12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2015 - Hua Hin, Cha-am, Thailand Duration: 24 Jun 2015 → 27 Jun 2015

Publication series

Name	ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology

Conference

Conference	12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2015
Country/Territory	Thailand
City	Hua Hin, Cha-am
Period	24/06/15 → 27/06/15

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

active filter
flyback
microinverter
photovoltaic

Access to Document

10.1109/ECTICon.2015.7206953

Cite this

Sulong, D., & Jeraputra, C. (2015). Design and implementation of a microinverter for solar PV rooftops. In ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Article 7206953 (ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECTICon.2015.7206953

Sulong, Dome ; Jeraputra, Chuttchaval. / Design and implementation of a microinverter for solar PV rooftops. ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology. Institute of Electrical and Electronics Engineers Inc., 2015. (ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology).

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title = "Design and implementation of a microinverter for solar PV rooftops",

abstract = "This paper presents design and implementation of a microinverter for solar PV rooftops. The proposed microinverter consists of a flyback inverter and a dc active filter that can operate independently in parallel. The flyback inverter, controlled in digital peak current mode, regulates the full-wave rectified sinusoidal current, later which is alternately inverted and injected into the grid. The dc active filter regulates the smooth current/power drawn from a PV module by using cascaded PI controllers. The proposed topology has several advantages: 1) eliminating a bulky electrolytic capacitor at the input filter stage, 2) using a long lifetime and reliable film capacitor, 3) efficiently handling flyback transformer leakage energy. The design and control of the proposed topology are presented and discussed in detail. A 100W/220V/50Hz prototype is developed and tested. The experimental results show that the microinverter is capable of regulating the sinusoidal current fed into the grid, actively filtering the dc current/power and achieving reasonably high energy conversion efficiency.",

keywords = "active filter, flyback, microinverter, photovoltaic",

author = "Dome Sulong and Chuttchaval Jeraputra",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2015 ; Conference date: 24-06-2015 Through 27-06-2015",

year = "2015",

month = aug,

day = "17",

doi = "10.1109/ECTICon.2015.7206953",

language = "English",

series = "ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology",

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Sulong, D & Jeraputra, C 2015, Design and implementation of a microinverter for solar PV rooftops. in ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology., 7206953, ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, Institute of Electrical and Electronics Engineers Inc., 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2015, Hua Hin, Cha-am, Thailand, 24/06/15. https://doi.org/10.1109/ECTICon.2015.7206953

Design and implementation of a microinverter for solar PV rooftops. / Sulong, Dome; Jeraputra, Chuttchaval.
ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology. Institute of Electrical and Electronics Engineers Inc., 2015. 7206953 (ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology).

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

TY - GEN

T1 - Design and implementation of a microinverter for solar PV rooftops

AU - Sulong, Dome

AU - Jeraputra, Chuttchaval

PY - 2015/8/17

Y1 - 2015/8/17

N2 - This paper presents design and implementation of a microinverter for solar PV rooftops. The proposed microinverter consists of a flyback inverter and a dc active filter that can operate independently in parallel. The flyback inverter, controlled in digital peak current mode, regulates the full-wave rectified sinusoidal current, later which is alternately inverted and injected into the grid. The dc active filter regulates the smooth current/power drawn from a PV module by using cascaded PI controllers. The proposed topology has several advantages: 1) eliminating a bulky electrolytic capacitor at the input filter stage, 2) using a long lifetime and reliable film capacitor, 3) efficiently handling flyback transformer leakage energy. The design and control of the proposed topology are presented and discussed in detail. A 100W/220V/50Hz prototype is developed and tested. The experimental results show that the microinverter is capable of regulating the sinusoidal current fed into the grid, actively filtering the dc current/power and achieving reasonably high energy conversion efficiency.

AB - This paper presents design and implementation of a microinverter for solar PV rooftops. The proposed microinverter consists of a flyback inverter and a dc active filter that can operate independently in parallel. The flyback inverter, controlled in digital peak current mode, regulates the full-wave rectified sinusoidal current, later which is alternately inverted and injected into the grid. The dc active filter regulates the smooth current/power drawn from a PV module by using cascaded PI controllers. The proposed topology has several advantages: 1) eliminating a bulky electrolytic capacitor at the input filter stage, 2) using a long lifetime and reliable film capacitor, 3) efficiently handling flyback transformer leakage energy. The design and control of the proposed topology are presented and discussed in detail. A 100W/220V/50Hz prototype is developed and tested. The experimental results show that the microinverter is capable of regulating the sinusoidal current fed into the grid, actively filtering the dc current/power and achieving reasonably high energy conversion efficiency.

KW - active filter

KW - flyback

KW - microinverter

KW - photovoltaic

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M3 - Conference contribution

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T3 - ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology

BT - ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2015

Y2 - 24 June 2015 through 27 June 2015

ER -

Sulong D, Jeraputra C. Design and implementation of a microinverter for solar PV rooftops. In ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology. Institute of Electrical and Electronics Engineers Inc. 2015. 7206953. (ECTI-CON 2015 - 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology). doi: 10.1109/ECTICon.2015.7206953

Design and implementation of a microinverter for solar PV rooftops

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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