Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment

Moving away from fossil fuels towards renewable sources requires system operators to determine the capacity of distribution systems to safely accommodate green and distributed generation (DG). However, the DG capacity of a distribution system is often underestimated due to either overly conservative...

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Main Authors: Masoume Mahmoodi, Seyyed Mahdi Noori Rahim Abadi, Ahmad Attarha, Paul Scott, Lachlan Blackhall
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:Journal of Modern Power Systems and Clean Energy
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10215091/
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author Masoume Mahmoodi
Seyyed Mahdi Noori Rahim Abadi
Ahmad Attarha
Paul Scott
Lachlan Blackhall
author_facet Masoume Mahmoodi
Seyyed Mahdi Noori Rahim Abadi
Ahmad Attarha
Paul Scott
Lachlan Blackhall
author_sort Masoume Mahmoodi
collection DOAJ
description Moving away from fossil fuels towards renewable sources requires system operators to determine the capacity of distribution systems to safely accommodate green and distributed generation (DG). However, the DG capacity of a distribution system is often underestimated due to either overly conservative electrical demand and DG output uncertainty modelling or neglecting the recourse capability of the available components. To improve the accuracy of DG capacity assessment, this paper proposes a distributionally adjustable robust chance-constrained approach that utilises uncertainty information to reduce the conservativeness of conventional robust approaches. The proposed approach also enables fast-acting devices such as inverters to adjust to the real-time realisation of uncertainty using the adjustable robust counterpart methodology. To achieve a tractable formulation, we first define uncertain chance constraints through distributionally robust conditional value-at-risk (CVaR), which is then reformulated into convex quadratic constraints. We subsequently solve the resulting large-scale, yet convex, model in a distributed fashion using the alternating direction method of multipliers (ADMM). Through numerical simulations, we demonstrate that the proposed approach outperforms the adjustable robust and conventional distributionally robust approaches by up to 15% and 40%, respectively, in terms of total installed DG capacity.
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spelling doaj.art-87f396ee1ea545f19425b8a6eeb47d662024-01-27T00:03:18ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202024-01-0112111512710.35833/MPCE.2023.00002910215091Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity AssessmentMasoume Mahmoodi0Seyyed Mahdi Noori Rahim Abadi1Ahmad Attarha2Paul Scott3Lachlan Blackhall4College of Engineering and Computer Science, The Australian National University,Canberra,AustraliaCollege of Engineering and Computer Science, The Australian National University,Canberra,AustraliaCollege of Engineering and Computer Science, The Australian National University,Canberra,AustraliaCollege of Engineering and Computer Science, The Australian National University,Canberra,AustraliaCollege of Engineering and Computer Science, The Australian National University,Canberra,AustraliaMoving away from fossil fuels towards renewable sources requires system operators to determine the capacity of distribution systems to safely accommodate green and distributed generation (DG). However, the DG capacity of a distribution system is often underestimated due to either overly conservative electrical demand and DG output uncertainty modelling or neglecting the recourse capability of the available components. To improve the accuracy of DG capacity assessment, this paper proposes a distributionally adjustable robust chance-constrained approach that utilises uncertainty information to reduce the conservativeness of conventional robust approaches. The proposed approach also enables fast-acting devices such as inverters to adjust to the real-time realisation of uncertainty using the adjustable robust counterpart methodology. To achieve a tractable formulation, we first define uncertain chance constraints through distributionally robust conditional value-at-risk (CVaR), which is then reformulated into convex quadratic constraints. We subsequently solve the resulting large-scale, yet convex, model in a distributed fashion using the alternating direction method of multipliers (ADMM). Through numerical simulations, we demonstrate that the proposed approach outperforms the adjustable robust and conventional distributionally robust approaches by up to 15% and 40%, respectively, in terms of total installed DG capacity.https://ieeexplore.ieee.org/document/10215091/Distributed generation (DG) capacity assessmentdistributionally robust optimisationchance-constrained optimisationdistribution system
spellingShingle Masoume Mahmoodi
Seyyed Mahdi Noori Rahim Abadi
Ahmad Attarha
Paul Scott
Lachlan Blackhall
Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment
Journal of Modern Power Systems and Clean Energy
Distributed generation (DG) capacity assessment
distributionally robust optimisation
chance-constrained optimisation
distribution system
title Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment
title_full Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment
title_fullStr Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment
title_full_unstemmed Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment
title_short Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment
title_sort data driven distributionally adjustable robust chance constrained dg capacity assessment
topic Distributed generation (DG) capacity assessment
distributionally robust optimisation
chance-constrained optimisation
distribution system
url https://ieeexplore.ieee.org/document/10215091/
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