Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management
Distribution grid aggregated flexibilities or PQ-capabilities (active and reactive power capabilities) are termed in literature as Feasible Operating Regions (FORs). The FORs from underlying active distribution grids can effectively contribute to the operational management at the HV grid level. The...
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2025-01-01
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| author | Neelotpal Majumdar Lutz Hofmann |
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| description | Distribution grid aggregated flexibilities or PQ-capabilities (active and reactive power capabilities) are termed in literature as Feasible Operating Regions (FORs). The FORs from underlying active distribution grids can effectively contribute to the operational management at the HV grid level. The HV buses are allocated aggregated FORs from the underlying MV grids, which are inherently nonlinear and non-convex. Therefore, two approaches are proposed in the paper to apply the FOR constraints in the HV grid operational management. First, a mixed integer linear programming (MILP) based optimization approach for alleviating the HV grid constraint violations is proposed, which addresses the non-convexity of the FOR using piecewise segmentation. Furthermore, the MILP method is enhanced to consider the influence of the HV bus voltage on the underlying MV grid flexibilities resulting in a 3D PQ(V)-FOR. Second, a convexification approach is proposed, which uses a convex approximation of the non-convex 3D PQ(V)-FOR for implementation in a linear optimization method. Results reveal a robust utilization of the distribution flexibilities to maintain grid security and reliability at the HV grid level. Comparisons present significantly reduced computation times for the convexification method. |
| format | Article |
| id | doaj-art-728efe39f92a4bb2aa65eb70fc632f7f |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
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| spelling | doaj-art-728efe39f92a4bb2aa65eb70fc632f7f2025-08-20T03:41:40ZengIEEEIEEE Access2169-35362025-01-011313938813940310.1109/ACCESS.2025.359688411119718Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational ManagementNeelotpal Majumdar0https://orcid.org/0000-0002-4859-1247Lutz Hofmann1https://orcid.org/0000-0002-3688-6136Institute of Electric Power Systems, Electric Power Engineering Section, Leibniz University Hannover, Hanover, GermanyInstitute of Electric Power Systems, Electric Power Engineering Section, Leibniz University Hannover, Hanover, GermanyDistribution grid aggregated flexibilities or PQ-capabilities (active and reactive power capabilities) are termed in literature as Feasible Operating Regions (FORs). The FORs from underlying active distribution grids can effectively contribute to the operational management at the HV grid level. The HV buses are allocated aggregated FORs from the underlying MV grids, which are inherently nonlinear and non-convex. Therefore, two approaches are proposed in the paper to apply the FOR constraints in the HV grid operational management. First, a mixed integer linear programming (MILP) based optimization approach for alleviating the HV grid constraint violations is proposed, which addresses the non-convexity of the FOR using piecewise segmentation. Furthermore, the MILP method is enhanced to consider the influence of the HV bus voltage on the underlying MV grid flexibilities resulting in a 3D PQ(V)-FOR. Second, a convexification approach is proposed, which uses a convex approximation of the non-convex 3D PQ(V)-FOR for implementation in a linear optimization method. Results reveal a robust utilization of the distribution flexibilities to maintain grid security and reliability at the HV grid level. Comparisons present significantly reduced computation times for the convexification method.https://ieeexplore.ieee.org/document/11119718/Aggregated flexibilitiesPQ-capabilityactive distribution gridsgrid operational managementfeasible operating regionmixed-integer linear programming |
| spellingShingle | Neelotpal Majumdar Lutz Hofmann Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management IEEE Access Aggregated flexibilities PQ-capability active distribution grids grid operational management feasible operating region mixed-integer linear programming |
| title | Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management |
| title_full | Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management |
| title_fullStr | Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management |
| title_full_unstemmed | Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management |
| title_short | Aggregated Distribution Grid Flexibilities in the Overlaying Grid Operational Management |
| title_sort | aggregated distribution grid flexibilities in the overlaying grid operational management |
| topic | Aggregated flexibilities PQ-capability active distribution grids grid operational management feasible operating region mixed-integer linear programming |
| url | https://ieeexplore.ieee.org/document/11119718/ |
| work_keys_str_mv | AT neelotpalmajumdar aggregateddistributiongridflexibilitiesintheoverlayinggridoperationalmanagement AT lutzhofmann aggregateddistributiongridflexibilitiesintheoverlayinggridoperationalmanagement |