Journal ArticleDOI
Feeder Reconfiguration for Unbalanced Distribution Systems With Distributed Generation: A Hierarchical Decentralized Approach
Fei Ding,Kenneth A. Loparo +1 more
TLDR
In this paper, the three-phase bus locations and sizes of DG units are determined using sensitivity analysis and nonlinear programming, respectively, and distribution feeders are reconfigured every hour based on the status of time-varying loads, output power from DG units and faults on the network while minimizing the energy loss costs and DG operating costs.Abstract:
Most existing approaches for distribution network reconfiguration assume that the distribution system is (three-phase) balanced and a single-phase equivalent is used. However, distribution feeders are usually unbalanced due to a large number of single-phase loads, nonsymmetrical conductor spacing, and three-phase line topology. This paper builds on our previous work and studies feeder reconfiguration for unbalanced distribution systems with distributed generation (DG). The three-phase bus locations and sizes of DG units are determined using sensitivity analysis and nonlinear programming, respectively, and distribution feeders are reconfigured every hour based on the status of time-varying loads, output power from DG units and faults on the network while minimizing the energy loss costs and DG operating costs. Simulation results show the effectiveness and computational efficiency of the proposed approach.read more
Citations
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Journal ArticleDOI
Photovoltaic and solar power forecasting for smart grid energy management
TL;DR: This paper provides a comprehensive review of the theoretical forecasting methodologies for both solar resource and PV power and applications of solar forecasting in energy management of smart grid are investigated in detail.
Journal ArticleDOI
On Distributed PV Hosting Capacity Estimation, Sensitivity Study, and Improvement
Fei Ding,Barry Mather +1 more
TL;DR: In this article, an active distribution network management approach is proposed to maximize PV hosting capacity by optimally switching capacitors, adjusting voltage regulator taps, managing controllable branch switches, and controlling smart PV inverters.
Journal ArticleDOI
Power Quality Concerns in Implementing Smart Distribution-Grid Applications
Math Bollen,Ratan Das,Sasa Z. Djokic,Phil Ciufo,Jan Meyer,Sarah K. Ronnberg,Francisc Zavodam +6 more
TL;DR: This paper maps the expected and possible adverse consequences for power quality of introducing several smart distribution-grid technologies and applications and recommends recommendations based on the mapping.
Journal ArticleDOI
Optimal reconfiguration of distribution system connected with distributed generations: A review of different methodologies
TL;DR: In this paper, the authors review some of the more recent methods for distribution network reconfiguration, DG placement, and sizing that are intended to minimize power losses and improve the voltage profile.
Journal ArticleDOI
Coordinated Optimal Network Reconfiguration and Voltage Regulator/DER Control for Unbalanced Distribution Systems
Yikui Liu,Jie Li,Lei Wu +2 more
TL;DR: This paper focuses on the optimal network reconfiguration problem of distribution systems via an unbalanced ac optimal power flow framework, which rigorously addresses operation characters of unbalanced network, DERs, and voltage regulators (VRs).
References
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Power System Stability and Control
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Journal ArticleDOI
Network reconfiguration in distribution systems for loss reduction and load balancing
Mesut E. Baran,Felix F. Wu +1 more
TL;DR: Accuracy analysis and the test results show that estimation methods can be used in searches to reconfigure a given system even if the system is not well compensated and reconfiguring involves load transfer between different substations.
Journal ArticleDOI
Reconfiguration of electric distribution networks for resistive line losses reduction
D. Shirmohammadi,H.W. Hong +1 more
TL;DR: In this paper, the authors describe a heuristic method for the reconfiguration of distribution networks in order to reduce their resistive line losses under normal operating conditions, characterized by convergence to the optimum or a near-optimum solution and the independence of the final solution from the initial status of the network switches.
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