DC-link voltage regulation of inverters to enhance microgrid stability during network contingencies

Hossain, Md. Arif; Pota, H. R.; Haruni, A. M. O.; Hossain, M. J.

doi:10.1016/j.epsr.2017.02.026

Cited by 36 publications

(21 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While there are many research or review papers on the control, operation and management of microgrids [4][5][6][7][8][9][10][11]13,14], there is a gap in terms of identifying the definition and characteristics of converter-based microgrids and all their possible related challenges and opportunities to distinguish them from distribution networks. To bridge this gap, this paper offers the following contributions.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Microgrids with Converter-Interfaced Generations: Challenges and Opportunities

Hossain¹,

Pota²,

Hossain³

et al. 2018

Preprint

View full text Add to dashboard Cite

Although microgrids facilitate the increased penetration of distributed generations (DGs) and improve the security of power supplies, they have some issues that need to be better understood and addressed before realising the full potential of microgrids. This paper presents a comprehensive list of challenges and opportunities supported by a literature review on the evolution of converter-based microgrids. The discussion in this paper presented with a view to establishing microgrids as distinct from the existing distribution systems. This is accomplished by, firstly, describing the challenges and benefits of using DG units in a distribution network and then those of microgrid ones. Also, the definitions, classifications and characteristics of microgrids are revised according to their specific roles to provide a sound basis for novice researchers to undertake ongoing research on microgrids.

show abstract

Section: Introductionmentioning

confidence: 99%

Evolution of Microgrids with Converter-Interfaced Generations: Challenges and Opportunities

Hossain¹,

Pota²,

Hossain³

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…Network contingencies (faults on a heavy load side or unintentional islanding) in this situation may lead to inter-unit circulating power caused by a large mismatch in power consumption and power generation, and may change the dc-link voltage beyond its limit. As a result, the protection systems may shut down the inverter because of voltage violation, which may reduce the overall reliability of a microgrid [15,31].…”

Section: Power/voltage Droop Controlmentioning

confidence: 99%

“…To overcome the above issues, a microgrid concept has evolved [14][15][16]. However, the notion of microgrids is often confused with distribution network control.…”

Section: Characteristics Of Microgridsmentioning

confidence: 99%

See 1 more Smart Citation

Overview of AC Microgrid Controls with Inverter-Interfaced Generations

et al. 2017

View full text Add to dashboard Cite

Distributed generation (DG) is one of the key components of the emerging microgrid concept that enables renewable energy integration in a distribution network. In DG unit operation, inverters play a vital role in interfacing energy sources with the grid utility. An effective interfacing can successfully be accomplished by operating inverters with effective control techniques. This paper reviews and categorises different control methods (voltage and primary) for improving microgrid power quality, stability and power sharing approaches. In addition, the specific characteristics of microgrids are summarised to distinguish from distribution network control. Moreover, various control approaches including inner-loop controls and primary controls are compared according to their relative advantages and disadvantages. Finally, future research trends for microgrid control are discussed pointing out the research opportunities. This review paper will be a good basis for researchers working in microgrids and for industry to implement the ongoing research improvement in real systems.

show abstract

“…[21] highlights the circulating power flow and emphasize the DC link stability but the microgrid structure does not address the DC converters dynamics. [22] suggests resistor-based DC voltage damping method. However, the resistor can not limit the DC voltage in all cases.…”

Section: Introductionmentioning

confidence: 99%

Control Strategy for Uninterrupted Microgrid Mode Transfer During Unintentional Islanding Scenarios

Issa

Khateb

Abusara

et al. 2018

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

Abstract-This paper presents a microgrid control strategy to unify the control topology for energy storage systems (ESS) and renewable energy sources (RES) inverters in an AC microgrid and to protect the microgrid reliability from unintentional islanding instability using control loops which use the DC link voltage as a feedback. This bounds the DC link voltage and provides reliable operation in the microgrid. Simulation validates the proposed control strategy, and experiment results extol the concept.

show abstract

DC-link voltage regulation of inverters to enhance microgrid stability during network contingencies

Cited by 36 publications

References 27 publications

Evolution of Microgrids with Converter-Interfaced Generations: Challenges and Opportunities

Evolution of Microgrids with Converter-Interfaced Generations: Challenges and Opportunities

Overview of AC Microgrid Controls with Inverter-Interfaced Generations

Control Strategy for Uninterrupted Microgrid Mode Transfer During Unintentional Islanding Scenarios

Contact Info

Product

Resources

About