A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids

Jiefeng Hu; Jianguo Zhu; Yanqing Qu; Josep M. Guerrero

doi:10.1109/ECCE-Asia.2013.6579157

A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids

Jiefeng Hu, Jianguo Zhu, Yanqing Qu, Josep M. Guerrero

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

5 Citations (Scopus)

Abstract

Voltage and frequency droop method is commonly used in microgrids to achieve proper autonomous power sharing without control wire interconnections. This paper proposes a new control strategy for parallel connected inverters in microgrid applications by drooping the flux instead of the inverter output voltage. Firstly, the relation between the inverter flux and the active and reactive powers is mathematically obtained. Secondly, a novel flux droop method is then developed in order to regulate active and reactive powers by drooping the flux amplitude and the phase angle, respectively. In addition, a small-signal model is developed in order to design the main control parameters and study the system dynamics and stability. The proposed control scheme includes a direct flux control (DFC) algorithm, which avoids the use of PI controllers and PWM modulators. The obtained results shows that the proposed flux droop strategy can achieve active and reactive power sharing with much lower frequency deviation and better transient performance than the conventional voltage droop method, thus highlighting the potential use in microgrid applications.

Original language	English
Title of host publication	2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013
Pages	585-590
Number of pages	6
DOIs	https://doi.org/10.1109/ECCE-Asia.2013.6579157
Publication status	Published - 16 Sept 2013
Externally published	Yes
Event	2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013 - Melbourne, VIC, Australia Duration: 3 Jun 2013 → 6 Jun 2013

Conference

Conference	2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013
Country/Territory	Australia
City	Melbourne, VIC
Period	3/06/13 → 6/06/13

Keywords

active and reactive power sharing
direct flux control
distributed generation
flux droop control
Microgrids

ASJC Scopus subject areas

Electrical and Electronic Engineering

More information

10.1109/ECCE-Asia.2013.6579157

Cite this

@inproceedings{704843d271874b8a9e415d6a11e2dd3d,

title = "A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids",

abstract = "Voltage and frequency droop method is commonly used in microgrids to achieve proper autonomous power sharing without control wire interconnections. This paper proposes a new control strategy for parallel connected inverters in microgrid applications by drooping the flux instead of the inverter output voltage. Firstly, the relation between the inverter flux and the active and reactive powers is mathematically obtained. Secondly, a novel flux droop method is then developed in order to regulate active and reactive powers by drooping the flux amplitude and the phase angle, respectively. In addition, a small-signal model is developed in order to design the main control parameters and study the system dynamics and stability. The proposed control scheme includes a direct flux control (DFC) algorithm, which avoids the use of PI controllers and PWM modulators. The obtained results shows that the proposed flux droop strategy can achieve active and reactive power sharing with much lower frequency deviation and better transient performance than the conventional voltage droop method, thus highlighting the potential use in microgrid applications.",

keywords = "active and reactive power sharing, direct flux control, distributed generation, flux droop control, Microgrids",

author = "Jiefeng Hu and Jianguo Zhu and Yanqing Qu and Guerrero, {Josep M.}",

year = "2013",

month = sep,

day = "16",

doi = "10.1109/ECCE-Asia.2013.6579157",

language = "English",

isbn = "9781479904822",

pages = "585--590",

booktitle = "2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013",

note = "2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013 ; Conference date: 03-06-2013 Through 06-06-2013",

}

Hu, J, Zhu, J, Qu, Y & Guerrero, JM 2013, A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids. in 2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013., 6579157, pp. 585-590, 2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013, Melbourne, VIC, Australia, 3/06/13. https://doi.org/10.1109/ECCE-Asia.2013.6579157

A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids. / Hu, Jiefeng; Zhu, Jianguo; Qu, Yanqing et al.
2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013. 2013. p. 585-590 6579157.

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

TY - GEN

T1 - A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids

AU - Hu, Jiefeng

AU - Zhu, Jianguo

AU - Qu, Yanqing

AU - Guerrero, Josep M.

PY - 2013/9/16

Y1 - 2013/9/16

N2 - Voltage and frequency droop method is commonly used in microgrids to achieve proper autonomous power sharing without control wire interconnections. This paper proposes a new control strategy for parallel connected inverters in microgrid applications by drooping the flux instead of the inverter output voltage. Firstly, the relation between the inverter flux and the active and reactive powers is mathematically obtained. Secondly, a novel flux droop method is then developed in order to regulate active and reactive powers by drooping the flux amplitude and the phase angle, respectively. In addition, a small-signal model is developed in order to design the main control parameters and study the system dynamics and stability. The proposed control scheme includes a direct flux control (DFC) algorithm, which avoids the use of PI controllers and PWM modulators. The obtained results shows that the proposed flux droop strategy can achieve active and reactive power sharing with much lower frequency deviation and better transient performance than the conventional voltage droop method, thus highlighting the potential use in microgrid applications.

AB - Voltage and frequency droop method is commonly used in microgrids to achieve proper autonomous power sharing without control wire interconnections. This paper proposes a new control strategy for parallel connected inverters in microgrid applications by drooping the flux instead of the inverter output voltage. Firstly, the relation between the inverter flux and the active and reactive powers is mathematically obtained. Secondly, a novel flux droop method is then developed in order to regulate active and reactive powers by drooping the flux amplitude and the phase angle, respectively. In addition, a small-signal model is developed in order to design the main control parameters and study the system dynamics and stability. The proposed control scheme includes a direct flux control (DFC) algorithm, which avoids the use of PI controllers and PWM modulators. The obtained results shows that the proposed flux droop strategy can achieve active and reactive power sharing with much lower frequency deviation and better transient performance than the conventional voltage droop method, thus highlighting the potential use in microgrid applications.

KW - active and reactive power sharing

KW - direct flux control

KW - distributed generation

KW - flux droop control

KW - Microgrids

UR - http://www.scopus.com/inward/record.url?scp=84883684270&partnerID=8YFLogxK

U2 - 10.1109/ECCE-Asia.2013.6579157

DO - 10.1109/ECCE-Asia.2013.6579157

M3 - Conference article published in proceeding or book

SN - 9781479904822

SP - 585

EP - 590

BT - 2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013

T2 - 2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013

Y2 - 3 June 2013 through 6 June 2013

ER -

A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids

Abstract

Conference

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this