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Model predictive control for distributed microgrid system with unbalanced loads
2017 13th IEEE Conference on Automation Science and Engineering (CASE), 2017The negative sequence (NS) current and voltage unbalance in microgrids will cause the error action of protection device, power loss and equipment damage due to unbalanced loads. To compensate the NS current and limit the voltage unbalance, a novel parallel distributed model predictive control (DMPC) strategy is introduced by communicating between ...
Yunfei Pu, Jing Wu 0006, Shaoyuan Li
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IEEE Transactions on Power Systems, 2016
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
null Fei Ding, Kenneth Loparo
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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
null Fei Ding, Kenneth Loparo
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Centralized Unbalanced Dispatch of Smart Distribution DC Microgrid Systems
IEEE Transactions on Smart Grid, 2018This paper proposes three new operation strategies such that a set of dc microgrids in distribution systems can cooperate pursuing particular objectives: 1) loss reduction; 2) full unbalance compensation; and 3) partial unbalance compensation. Loss reduction is a regular strategy for distribution utilities operating their systems efficiently by optimal
Tianqi Hong, Francisco de León
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IEEJ Transactions on Electronics, Information and Systems, 2016
SUMMARYIn recent years, rapid introduction of photovoltaic power systems (PVs) causes voltage rise in distribution systems. In addition, residential PVs cause voltage unbalance in distribution systems. For these reasons, it has become difficult to control voltage in distribution systems to within the allowable range.
YU FUJITA +6 more
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SUMMARYIn recent years, rapid introduction of photovoltaic power systems (PVs) causes voltage rise in distribution systems. In addition, residential PVs cause voltage unbalance in distribution systems. For these reasons, it has become difficult to control voltage in distribution systems to within the allowable range.
YU FUJITA +6 more
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Optimal voltage regulation in distribution systems with unbalanced loads and distributed generation
2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), 2016This paper proposes optimal voltage control strategies for distribution systems that have multiple voltage regulator devices. The system must operate reaching desirable voltage profiles for scenarios that consider extreme loading (heavy and light), unbalanced loads and distributed generation connection. The problem is modeled as an optimization problem
Tiago Soares Vitor +1 more
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Distributed generation placement in unbalanced distribution system with seasonal load variation
2014 Eighteenth National Power Systems Conference (NPSC), 2014To minimize power losses, it is important to determine the optimal location and size of Distributed Generation (DG) to be placed in distribution system. Inappropriate location and size may lead to increase the system losses and bad effect on voltage profile.
Ravi Teja Bhimarasetti, Ashwani Kumar
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Application of Reinforcement Learning to Operate the Unbalanced Distribution System
2022 13th International Conference on Information and Communication Technology Convergence (ICTC), 2022Yeunggurl Yoon, Sungyun Choi
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Unbalanced Underground Distribution Systems Fault Detection and Section Estimation
2007This paper presents a novel fault detection and section estimation method for unbalanced underground distribution systems (UDS). The method proposed is based on artificial neural networks (ANNs) and wavelet transforms (WTs). The majority of UDS are characterized by having several single/double phase laterals and non-symmetrical lines.
Karen Rezende Caino de Oliveira +4 more
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DER Hosting Capacity Envelope in Unbalanced Distribution Systems
2021 IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe), 2021Masoume Mahmoodi, Lachlan Blackhall
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Unbalanced Load Flow for Weakly Meshed Distribution Systems with Distributed Generation
2010 International Conference on Electrical and Control Engineering, 2010Distributed Generation (DG) can bring support to distribution system, meanwhile, it bring unbalancedness in power source, load and line. Traditional load flow algorithms are not applicable to the weakly meshed distribution system with DGs. First, this paper present a direct algorithm based on BIBC matrix and BCBV matrix.
Shao-Qiang Hu, Sen-Mao Li
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