Appearance of multiple stable load flow solutions under power flow reversal conditions
2014 IEEE PES General Meeting | Conference & Exposition, National Harbor MD USA
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024
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| Online Access: | https://hdl.handle.net/1721.1/155147 |
| _version_ | 1826197954546892800 |
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| author | Nguyen, Hung D. Turitsyn, Konstantin S. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Nguyen, Hung D. Turitsyn, Konstantin S. |
| author_sort | Nguyen, Hung D. |
| collection | MIT |
| description | 2014 IEEE PES General Meeting | Conference & Exposition, National Harbor MD USA |
| first_indexed | 2024-09-23T10:56:19Z |
| format | Article |
| id | mit-1721.1/155147 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2025-02-19T04:19:33Z |
| publishDate | 2024 |
| publisher | IEEE |
| record_format | dspace |
| spelling | mit-1721.1/1551472024-12-21T05:56:44Z Appearance of multiple stable load flow solutions under power flow reversal conditions Nguyen, Hung D. Turitsyn, Konstantin S. Massachusetts Institute of Technology. Department of Mechanical Engineering 2014 IEEE PES General Meeting | Conference & Exposition, National Harbor MD USA In complex power systems, nonlinear load flow equations have multiple solutions. Under typical load conditions only one solution isf stable and corresponds to a normal operating point, whereas the second solution is not stable and is never realized in practice. However, in future distribution grids with high penetration of distributed generators more stable solutions may appear because of active or reactive power reversal. The systems can operate at different states, and additional control measures may be required to ensure that it remains at the appropriate point. This paper focuses on the analysis of several cases where multiple solution phenomena is observed. A noniterative approach for solving load flow equations based on the Gröbner basis is introduced to overcome the convergence and computational efficiency associated with standard iterative approaches. All the solutions of load flow problems with their existence boundaries are analyzed for a simple 3-bus model. Furthermore, the stability of the solutions is analyzed using a derived aggregated load dynamics model, and suggestions for preventive control are proposed and discussed. The failure of naïve voltage stability criteria is demonstrated and new voltage stability criteria is proposed. Some of the new solutions of load flow equations are proved to be both stable and acceptable to the EN 50610 voltage fluctuation standard. 2024-05-30T21:11:51Z 2024-05-30T21:11:51Z 2014-07 2024-05-30T21:06:47Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/155147 H. D. Nguyen and K. S. Turitsyn, "Appearance of multiple stable load flow solutions under power flow reversal conditions," 2014 IEEE PES General Meeting | Conference & Exposition, National Harbor, MD, USA, 2014, pp. 1-5. en 10.1109/pesgm.2014.6938797 Creative Commons Attribution-Noncommercial-ShareAlike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IEEE arxiv |
| spellingShingle | Nguyen, Hung D. Turitsyn, Konstantin S. Appearance of multiple stable load flow solutions under power flow reversal conditions |
| title | Appearance of multiple stable load flow solutions under power flow reversal conditions |
| title_full | Appearance of multiple stable load flow solutions under power flow reversal conditions |
| title_fullStr | Appearance of multiple stable load flow solutions under power flow reversal conditions |
| title_full_unstemmed | Appearance of multiple stable load flow solutions under power flow reversal conditions |
| title_short | Appearance of multiple stable load flow solutions under power flow reversal conditions |
| title_sort | appearance of multiple stable load flow solutions under power flow reversal conditions |
| url | https://hdl.handle.net/1721.1/155147 |
| work_keys_str_mv | AT nguyenhungd appearanceofmultiplestableloadflowsolutionsunderpowerflowreversalconditions AT turitsynkonstantins appearanceofmultiplestableloadflowsolutionsunderpowerflowreversalconditions |