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Autonomous Multi-Stage Flexible OPF for Active Distribution Systems with DERs

Sakis Meliopoulos, Chiyang Zhong, George Cokkinides, Boqi Xie, Catherine Dalton, Paul Myrda, Evangelos Farantatos
2019 Proceedings of the 52nd Hawaii International Conference on System Sciences   unpublished
The paper describes the autonomous formation of the Multi-Stage Flexible Optimal Power Flow and the solution of the problem, and presents sample results.  ...  We present an approach that autonomously optimizes the available distributed energy resources (DERs) of the system to optimally balance generation and load and/or levelize the voltage profile.  ...  Here we propose an extension of this approach that uses the state estimation results to autonomously form and solve a multi-stage flexible OPF (F-OPF) problem for DER penetrated distribution systems.  ... 
doi:10.24251/hicss.2019.418 fatcat:zjefkrammzhaba45ot7guyzz5e

Stochastic multi-period optimal dispatch of energy storage in unbalanced distribution feeders [article]

Nawaf Nazir, Mads Almassalkhi
2020 arXiv   pre-print
This paper presents a convex, multi-period, AC-feasible Optimal Power Flow (OPF) framework that robustly dispatches flexible demand-side resources in unbalanced distribution feeders against uncertainty  ...  This is valuable for power systems with significant behind-the-meter solar PV generation as their operation is affected by uncertainty from forecasts of demand and solar PV generation.  ...  ACKNOWLEDGEMENT The authors would like to thank Sarnaduti Brahma and Pavan Racherla for discussions around forecast uncertainty and network reduction, respectively.  ... 
arXiv:2005.09006v1 fatcat:bgu75o7tcrg7rfzsynuadquwny

Distributed routing algorithms to manage power flow in agent-based active distribution network

Phuong H. Nguyen, Wil L. Kling, Giorgos Georgiadis, Marina Papatriantafilou, Le Anh Tuan, Lina Bertling
2010 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)  
The large-scale integration of distributed generation (DG) challenges distribution systems in coping with bidirectional power flows, voltage variations, fault level increases, protection selectivity, power  ...  He is the Dutch Representative in the Cigre Study Committee C6 Distribution Systems and Dispersed Generation.  ...  The term of Active Distribution Network (ADN) is mentioned recently since the distribution network becomes active with DER and RES units leading to bidirectional power flows T II.  ... 
doi:10.1109/isgteurope.2010.5638951 dblp:conf/isgteurope/NguyenKGPTB10 fatcat:nu7p25jvujgvfiw7dlwa6hgmr4

2020 Index IEEE Transactions on Sustainable Energy Vol. 11

2020 IEEE Transactions on Sustainable Energy  
., +, TSTE Oct. 2020 2427-2436 Distributionally Robust Chance-Constrained AC-OPF for Integrating Wind Energy Through Multi-Terminal VSC-HVDC.  ...  ., +, TSTE April 2020 584- 594 Distributionally Robust Chance-Constrained AC-OPF for Integrating Wind Energy Through Multi-Terminal VSC-HVDC.  ... 
doi:10.1109/tste.2020.3029733 fatcat:6eucku5sfrg47gv32e5wqaimm4

A Mathematical Model for the Scheduling of Virtual Microgrids Topology into an Active Distribution Network

Fernando García-Muñoz, Francisco Díaz-González, Cristina Corchero
2020 Applied Sciences  
Every scenario execution takes less than a minute, making it appropriate for distribution system operational planning.  ...  radial distribution system considering four different scenarios of 72 h, where the global energy curtailment has been 27.9% without demand-side response (DSR) and 10.4% considering a 30% of flexibility  ...  The DN with the new set of loads is executed in a multi-period AC-OPF. Thus, the feasible solutions of the VMTS model are also feasible for the classic AC-OPF problem.  ... 
doi:10.3390/app10207199 fatcat:kluhbkswnnfrhdqqu6eltdurba

Optimal sizing and placement of distribution grid connected battery systems through an SOCP optimal power flow algorithm

Etta Grover-Silva, Robin Girard, George Kariniotakis
2018 Applied Energy  
This paper presents an alternating current (AC) multi-temporal OPF algorithm that uses a convex relaxation of the power flow equations to guarantee exact and optimal solutions with high algorithmic performance  ...  Abstract The high variability and uncertainty introduced into modern electrical distribution systems due to decentralized renewable energy generators requires new solutions for grid management and power  ...  Thibaut Barbier for his support with the simulated load curves. Authors would like to thank Dr.  ... 
doi:10.1016/j.apenergy.2017.09.008 fatcat:q3mfbcqufzb2hnzr5telcczfqq

Optimal planning of AC-DC hybrid transmission and distributed energy resource system: Review and prospects

Xianglong Liu, College of Electrical Engineering, Sichuan University, Chengdu 610065, China, Youbo Liu, College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2019 CSEE Journal of Power and Energy Systems  
With the highly-extensive integration of distributed renewable energy resources (DER) into the grid, the power distribution system has changed greatly in the structure, function and operating characteristics  ...  On this ground, An AC-DC hybrid DER system becomes necessary for effective management and control over DER.  ...  Fig. 2 . 2 The change mechanism of operation characteristics for AC-DC hybrid DER system comparing with traditional distribution system. Fig. 3 . 3 Planning contents in an AC-DC DER system.  ... 
doi:10.17775/cseejpes.2019.00540 fatcat:belzl3uxxzbjfcnozuwtgvtugy

Decentralized Voltage Control in Active Distribution Systems: Features and Open Issues

Giuseppe Fusco, Mario Russo, Michele De Santis
2021 Energies  
Voltage control is becoming a key issue in active distribution systems, which are electric distribution networks characterized by a large penetration of DERs.  ...  Due to the peculiar characteristics of active distribution systems, the decentralized control approach presents the most promising technical and economical features.  ...  Among the various technical issues, this paper focuses on the voltage control problem in active distribution systems, meant as distribution systems with a large penetration of DERs.  ... 
doi:10.3390/en14092563 fatcat:ophssmwornbfbd5xjxqcybpjzm

2020 Index IEEE Transactions on Smart Grid Vol. 11

2020 IEEE Transactions on Smart Grid  
., Small-Signal Stability Analysis and Active Damping Control of DC Microgrids Integrated With Distributed Electric Springs; 3737-3747 Hou, K., see Liu, X., TSG Nov. 2020 5431-5441 Hou, Y., see Liang  ...  Volt-VAR Control in Power Distribution Systems; TSG July 2020 3008-3018 Wang, W., see Gao, Y., TSG Nov. 2020 5357-5369 Wang, X., see Sheng, H., TSG Jan. 2020 95-105 Wang, X., Zhang, H., Shi, F., Wu  ...  ., +, TSG May 2020 2615-2626 Deliverable Energy Flexibility Scheduling for Active Distribution Networks.  ... 
doi:10.1109/tsg.2020.3044227 fatcat:qp5iogfnrnambc3qzuwvj4aega

Optimal corrective dispatch of uncertain virtual energy storage systems [article]

Mahraz Amini, Mads Almassalkhi
2019 arXiv   pre-print
Therefore, this paper investigates the uncertainty associated with energy-constrained aggregations of flexible, behind-the-meter distributed energy resources (DERs).  ...  The uncertainty studied herein is associated with estimating the state of charge and the capacity of an aggregation of DERs (i.e., a virtual energy storage system or VESS).  ...  Unlike that work, we consider dispatchable energy storage resources that are uncertain and develop a tractable approach to solve a stochastic multi-stage OPF problem.  ... 
arXiv:1810.08685v3 fatcat:e5fppuxelzahflwrg66x7lpg6m

Coordinated Control And Energy Management Of Distributed Generation Inverters In A Microgrid

Prof.Shravan Kumar Akireddy
2015 Zenodo  
This will create havoc for the users,who wants to communicate with each other through these networks.  ...  When we communicate with each other by using Computers through E Mails,a number of Computers are used for this purpose and the collection of these computers forms a network,which is called a Computer Network  ...  The microgrid system is a flexible cell that can be operated connected to the main power network or autonomously, in a controlled and coordinated way [23] .  ... 
doi:10.5281/zenodo.1471121 fatcat:sfbxtzj7hzczdmqgioihgnyvt4

Optimal corrective dispatch of uncertain virtual energy storage systems

Mahraz Amini, Mads Almassalkhi
2020 IEEE Transactions on Smart Grid  
Therefore, this paper investigates the uncertainty associated with energy-constrained aggregations of flexible, behind-the-meter distributed energy resources (DERs).  ...  The uncertainty studied herein is associated with estimating the state of charge and the capacity of an aggregation of DERs (i.e., a virtual energy storage system or VESS).  ...  Unlike that work, we consider dispatchable energy storage resources that are uncertain and develop a tractable approach to solve a stochastic multi-stage OPF problem.  ... 
doi:10.1109/tsg.2020.2979173 fatcat:lc2a2anszreqlcwulcmz7gyixa

2020 Index IEEE Transactions on Power Systems Vol. 35

2020 IEEE Transactions on Power Systems  
., Assessing the Impact of VSC-HVDC on the Interdependence of Power System Dynamic Performance in Uncertain Mixed AC/DC Systems; TPWRS Jan. 2020 63-74 Moeini, A., see Rimorov, D., TPWRS Sept. 2020 3825  ...  ., +, TPWRS Nov. 2020 4622-4631 Tri-Level Mixed-Integer Optimization for Two-Stage Microgrid Dispatch With Multi-Uncertainties.  ...  ., +, TPWRS Nov. 2020 4870-4879 Tri-Level Mixed-Integer Optimization for Two-Stage Microgrid Dispatch With Multi-Uncertainties.  ... 
doi:10.1109/tpwrs.2020.3040894 fatcat:jjw2rnzr2re6fejvariekzr5uy

Novel Hybrid Design For Microgrid Control

Angelina Bintoudi, Lampros Zyglakis, Apostolos Tsolakis, Demosthenis Ioannidis, Salem Al-Agtash, Jose L. Martinez-Ramos, Ahmet Onen, Brian Azzopardi, Lenos Hadjidemetriou, Nis Martensen, Charis Demoulias, Dimitrios Tzovaras
2018 Zenodo  
This paper proposes a new hybrid control system for an AC microgrid.  ...  During normal operation, the microgrid central controller (MGCC) is designed to undertake the management of the microgrid, while providing the local agents with the appropriate constraints for optimal  ...  The control objectives are concerned with frequency stability during islanded operation that is achieved by using consensus for cooperative frequency control and multi-stage load shedding.  ... 
doi:10.5281/zenodo.1317531 fatcat:oxfxjuzmbjawbkgkonpkgkropa

Flexibility Services Provision by Frequency-Dependent Control of On-Load Tap-Changer and Distributed Energy Resources

Hannu Laaksonen, Chethan Parthasarathy, Hosna Khajeh, Miadreza Shafie-khah, Nikos Hatziargyriou
2021 IEEE Access  
Distribution network connected distributed energy resources (DER) are able to provide various flexibility services for distribution system operators (DSOs) and transmission system operators (TSOs).  ...  These local and system-wide flexibility services offered by DER can support the frequency (f ) and voltage (U ) management of a future power system with large amounts of weather-dependent renewable generation  ...  Flexible DER, i.e. flexibilities, consist of, for example, controllable distributed generation (DG), battery energy storage systems (BESSs), controllable load/demand response (DR) The associate editor  ... 
doi:10.1109/access.2021.3067297 fatcat:vvklsfqxmzce7bj5xjw2cbuqie
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