Stability Enhancement of a Hybrid Micro-grid System in Grid Fault Condition

Ambia, Mir Nahidul; Al‐Durra, Ahmed; Muyeen, S. M.

doi:10.11142/jicems.2013.2.2.225

Cited by 7 publications

(5 citation statements)

References 23 publications

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“…The voltage gets back to 90% of its pre-fault value before 1.5 s which fulfills the grid code requirement. 31 As this is not focus of the paper, it is explained in details in the simulation results.…”

Section: Resultsmentioning

confidence: 99%

Adaptive power smoothing control in grid-connected and islanding modes of hybrid micro-grid energy management

Ambia¹,

Al‐Durra²

2015

Journal of Renewable and Sustainable Energy

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Articles you may be interested inA novel hierarchical energy management of a renewable microgrid considering static and dynamic frequency J. Renewable Sustainable Energy 7, 033118 (2015); 10.1063/1.4921772 Design and experimental investigations of a smart battery energy storage system for frequency control in microgrids J. Renewable Sustainable Energy 6, 023130 (2014); 10.1063/1.4873995 Development of a thermal and electrical energy management in residential building micro-grid J. Renewable Sustainable Energy 6, 013126 (2014); 10.1063/1.4863863 Fuzzy logic controller based power management for a standalone solar/wind/fuel cell fed hybrid system J. Renewable Sustainable Energy 5, 053147 (2013); 10.1063/1.4827315 Intelligent control of hybrid photo voltaic/fuel cell/energy storage power generation system J. Renewable Sustainable Energy 3, 043112 (2011);This paper presents an innovative technique for energy management of hybrid micro-grid system during grid connected and islanding modes by adaptive power smoothing control. In order to perform the adaptive power smoothing control, fuzzy logic control algorithm (FLCA) is incorporated with conventional control scheme of dc-dc buck boost converter of the battery energy storage system. A standard battery energy limiter is considered with the dc-dc buck boost controller as smoothing trip controller which can disable the smoothing operation if the state of charge of battery (SOC) exceeds its limits. A secondary frequency control and grid resynchronization technique for the converter between the AC and DC buses are considered for islanding and grid reconnected operations, respectively, to demonstrate the effectiveness of the adaptive technique in smoothing wind farm output power. The proposed FLCA adjusts its reference automatically during transition from grid mode to islanding mode and vice-versa based on the battery's SOC. Several cases have been tested where it has been verified that the FLCA can efficiently manage the SOC, while performing smoothing operation and maintain energy balance due to its adaptive nature instead of completely disabling the wind power smoothing at some extreme conditions. V C 2015 AIP Publishing LLC.

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Section: Resultsmentioning

confidence: 99%

Adaptive power smoothing control in grid-connected and islanding modes of hybrid micro-grid energy management

Ambia¹,

Al‐Durra²

2015

Journal of Renewable and Sustainable Energy

Self Cite

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“…proper load sharing, it may cause instability in microgrids while a microgrid's stability is improved by optimising the droop gains and using a supplementary loop [148,149,150]. In [151], an extra inverter is connected in parallel with DGs to inject reactive power during a voltage dip to improve the stability and LV ride through of a microgrid. An ESS can be used to support a sudden change in the mode transfer or load shedding of a microgrid to improve stability.…”

Section: Microgrid Central Controller (Mgcc)mentioning

confidence: 99%

Evolution of microgrids with converter-interfaced generations: Challenges and opportunities

Hossain

Pota

Hossain

et al. 2019

International Journal of Electrical Power & Energy Systems

236

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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 summarised to provide a sound basis for novice researchers to undertake ongoing research on microgrids.

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“…Although a high droop gain can enable a proper load sharing, it may cause instability in microgrids while a microgrid's stability is improved by optimising the droop gains and using a supplementary loop [146][147][148]. In [149], an extra inverter is connected in parallel with DGs to inject reactive power during a voltage dip to improve the stability and LV ride through of a microgrid. An ESS can be used to support a sudden change in the mode transfer or load shedding of a microgrid to improve stability.…”

Section: Challenges Of Microgridsmentioning

confidence: 99%

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

Hossain¹,

Pota²,

Hossain³

et al. 2018

Preprint

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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.

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Stability Enhancement of a Hybrid Micro-grid System in Grid Fault Condition

Cited by 7 publications

References 23 publications

Adaptive power smoothing control in grid-connected and islanding modes of hybrid micro-grid energy management

Adaptive power smoothing control in grid-connected and islanding modes of hybrid micro-grid energy management

Evolution of microgrids with converter-interfaced generations: Challenges and opportunities

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

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