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Conference Paper: Application of non-linear programming for large-scale AC-DC power flow analysis

TitleApplication of non-linear programming for large-scale AC-DC power flow analysis
Authors
Issue Date2012
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000581
Citation
The 2012 IEEE Power and Energy Society General Meeting, San Diego, CA., 22-26 July 2012, p. 1-8 How to Cite?
AbstractThis paper proposes a robust, non-divergent model for large-scale AC-DC power flow analysis. By introducing relaxation variables into power flow equations, the conventional power flow model is turned into a non-linear programming model to minimize the L2 norm of the relaxation variables subject to operation constraints and DC station control modes. The interior point method (IPM) is used to solve the model. Due to the special structure of the proposed model, the size of coefficient of correction equations in the IPM can be reduced to the same as Jacobian in the conventional Newton method. Further, the coefficient is symmetrical positive-definite with a diagonal perturbation, which leads to a better convergence than Newton direction. The model and algorithm proposed also have the following features: (1) no special initial value is needed; (2) strong robustness for power grids with plenty of small/negative impedance; (3) applicable for searching a desirable operation point by appropriate settings of inequality constraints; (4) striving for ultimate close to power flow solution avoiding to stop too early at a local minimizer. Numerical simulations on a 6527 buses power grid in China with 8 HVDC lines show that the proposed model has robust convergent property in the feasible region, around the boundary of the feasible region and even beyond the feasible region of power flow. © 2012 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/160241
ISBN

 

DC FieldValueLanguage
dc.contributor.authorQin, Zen_US
dc.contributor.authorHou, Yen_US
dc.date.accessioned2012-08-16T06:06:34Z-
dc.date.available2012-08-16T06:06:34Z-
dc.date.issued2012en_US
dc.identifier.citationThe 2012 IEEE Power and Energy Society General Meeting, San Diego, CA., 22-26 July 2012, p. 1-8en_US
dc.identifier.isbn9781467327299-
dc.identifier.urihttp://hdl.handle.net/10722/160241-
dc.description.abstractThis paper proposes a robust, non-divergent model for large-scale AC-DC power flow analysis. By introducing relaxation variables into power flow equations, the conventional power flow model is turned into a non-linear programming model to minimize the L2 norm of the relaxation variables subject to operation constraints and DC station control modes. The interior point method (IPM) is used to solve the model. Due to the special structure of the proposed model, the size of coefficient of correction equations in the IPM can be reduced to the same as Jacobian in the conventional Newton method. Further, the coefficient is symmetrical positive-definite with a diagonal perturbation, which leads to a better convergence than Newton direction. The model and algorithm proposed also have the following features: (1) no special initial value is needed; (2) strong robustness for power grids with plenty of small/negative impedance; (3) applicable for searching a desirable operation point by appropriate settings of inequality constraints; (4) striving for ultimate close to power flow solution avoiding to stop too early at a local minimizer. Numerical simulations on a 6527 buses power grid in China with 8 HVDC lines show that the proposed model has robust convergent property in the feasible region, around the boundary of the feasible region and even beyond the feasible region of power flow. © 2012 IEEE.-
dc.languageengen_US
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000581-
dc.relation.ispartofIEEE Power and Energy Society General Meeting Proceedingsen_US
dc.rightsIEEE Power and Energy Society General Meeting Proceedings. Copyright © I E E E.-
dc.rights©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleApplication of non-linear programming for large-scale AC-DC power flow analysisen_US
dc.typeConference_Paperen_US
dc.identifier.emailHou, Y: yhhou@eee.hku.hken_US
dc.identifier.authorityHou, Y=rp00069en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/PESGM.2012.6345044-
dc.identifier.scopuseid_2-s2.0-84870584921-
dc.identifier.hkuros202988en_US
dc.identifier.spage1-
dc.identifier.epage8-
dc.publisher.placeUnited States-

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