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Exact optimal power dispatch in unbalanced distribution systems with high PV penetration
Nguyen Q.2; Padullaparti H.V.2; Lao K.-W.2; Santoso S.2; Ke X.1; Samaan N.1
2019
Source PublicationIEEE Transactions on Power Systems
ISSN08858950
Volume34Issue:1Pages:718-728
AbstractSmart inverters provide additional control capability to help optimize the operation of distribution systems. This paper proposes a framework for exact optimal active and reactive power dispatch of distributed photovoltaic (PV) generation, switched capacitors, and voltage regulators in large multi-phase unbalanced distribution systems. The objectives of the optimal dispatch are minimization of the energy loss, PV active power curtailment, and operations of capacitors and voltage regulators, in addition to elimination of voltage violations and reverse power flow. The optimization problem is formulated in rectangular coordinates as a nonlinear, nonconvex problem. Effective computational strategies are proposed to allow the application of predictor-corrector primal-dual interior point method to solve optimization problems in real-time with a large number of constraints and variables, including discrete variables corresponding to switched capacitors and voltage regulators. The accuracy of the numerical solution and the ability to implement the proposed framework are validated using the unbalanced multi-phase IEEE 34-bus and EPRI 2,998-bus distribution systems with 15-minute load and PV data. The results show a significant loss reduction and elimination of both voltage violations and reverse power flow.
KeywordDistribution systems Photovoltaic integration Primal-dual interior point method Voltage regulation
DOI10.1109/TPWRS.2018.2869195
URLView the original
Language英語
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被引频次[WOS]:2   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题University of Macau
Affiliation1.Pacific Northwest National Laboratory
2.University of Texas at Austin
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Nguyen Q.,Padullaparti H.V.,Lao K.-W.,et al. Exact optimal power dispatch in unbalanced distribution systems with high PV penetration[J]. IEEE Transactions on Power Systems,2019,34(1):718-728.
APA Nguyen Q.,Padullaparti H.V.,Lao K.-W.,Santoso S.,Ke X.,&Samaan N..(2019).Exact optimal power dispatch in unbalanced distribution systems with high PV penetration.IEEE Transactions on Power Systems,34(1),718-728.
MLA Nguyen Q.,et al."Exact optimal power dispatch in unbalanced distribution systems with high PV penetration".IEEE Transactions on Power Systems 34.1(2019):718-728.
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