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Cross-layer Design for Real-Time Grid Operation: Estimation, Optimization and Power Flow
[article]
2022
arXiv
pre-print
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time-varying AC Optimal Power Flow (AC-OPF) problem. ...
Within the estimation, we design an online power flow solver that efficiently computes power flow approximations in real time. ...
CONCLUSIONS AND OUTLOOK In this paper, we proposed an algorithm for real-time grid operation that combines Online Feedback Optimization (OFO) and dynamic estimation with an online power flow solver. ...
arXiv:2109.13842v5
fatcat:xur4nu4u55bitbzqlqqaxmocce
A Survey of Real-Time Optimal Power Flow
2018
Energies
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This task should be performed by an online optimization. Therefore, real-time optimal power flow (RT-OPF) has become an attractive topic in recent years. ...
The paper focuses on a number of topics which are reviewed in chronological order of appearance: offline energy management systems (EMSs) (deterministic and stochastic approaches) and real-time EMSs (constraint ...
Abbreviations Figure 1 . 1 Offline optimal power flow (OPF) (gray) and real-time (RT)-OPF (black).
Figure 1 . 1 Offline optimal power flow (OPF) (gray) and real-time (RT)-OPF (black). ...
doi:10.3390/en11113142
fatcat:thhtrjenwvdmbkf7ktze3inywi
Real-time distributed algorithms for nonconvex optimal power flow
2017
2017 American Control Conference (ACC)
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The optimal power flow (OPF) problem, a fundamental problem in power systems, is generally nonconvex and computationally challenging for networks with an increasing number of smart devices and real-time ...
The effectiveness of the proposed algorithm for real-time nonconvex OPF problems is demonstrated in numerical simulations. ...
controlling power flow and smart devices for closed-loop grid operation in real-time. ...
doi:10.23919/acc.2017.7963469
dblp:conf/amcc/LiuHSJ17
fatcat:fptzif6ihraxrf5bjx76vr6vfq
Supervised Learning for Optimal Power Flow as a Real-Time Proxy
[article]
2016
arXiv
pre-print
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In this work we design and compare different supervised learning algorithms to compute the cost of Alternating Current Optimal Power Flow (ACOPF). ...
Integrated in a multiple time-horizon coordination framework, we refer to this approximation module as a proxy for predicting short-term decision outcomes without the need of actual simulation and optimization ...
INTRODUCTION Alternating Current Optimal Power Flow (ACOPF) is solved hourly or intra-hourly by system operators (SO) world-wide as part of real-time operation process, to ensure safe and robust operation ...
arXiv:1612.06623v1
fatcat:pdinrey35rdgxmxws7ile42aku
Real-Time Optimal Power Flow under Wind Energy Penetration-Part II: Implementation
[article]
2018
arXiv
pre-print
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2016
2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)
unpublished
doi:10.1109/eeeic.2016.7555465 fatcat:bzr2h45m4zf2pi32zpg7egcjru
doi:10.1109/eeeic.2016.7555465 fatcat:bzr2h45m4zf2pi32zpg7egcjru
In this paper (Part II) we implement the prediction-updating approach developed in Part I to address fast changes in wind power generation when solving a complex real-time optimal power flow (RT-OPF) problem ...
Then the operation strategy is updated in a short sampling time (every 20 seconds) considering real wind power values. ...
INTRODUCTION The method of the real-time optimal power flow (RT-OPF) under wind energy penetration is presented in Part I of our paper [1] . ...
arXiv:1806.11172v1
fatcat:53abpc72kfhyjncefcdm5dxgcq
Real-Time Optimal Power Flow under Wind Energy Penetration-Part I: Approach
[article]
2018
arXiv
pre-print
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2016
2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)
unpublished
doi:10.1109/eeeic.2016.7555464 fatcat:22ytlu6wuvflrdzkhjcodjgjpi
doi:10.1109/eeeic.2016.7555464 fatcat:22ytlu6wuvflrdzkhjcodjgjpi
Real-time optimal power flow (RT-OPF) under wind energy penetration is highly desired but extremely difficult to realize. ...
We consider essential scenarios around forecasted data of wind power that would probably happen during the computation time required for solving a large-scale complex optimal power flow problem. ...
SUMMARY In this paper, a real-time optimal power flow (RT-OPF) framework is proposed for active distribution networks with intermittent wind power penetration. ...
arXiv:1806.11171v1
fatcat:jf7vy6zombeddgig6dqonbvueq
Model-Free Primal-Dual Methods for Network Optimization with Application to Real-Time Optimal Power Flow
[article]
2019
arXiv
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Finally, the paper applies this methodology to a real-time optimal power flow problem in power systems, and shows its efficacy on the IEEE 37-node distribution test feeder for reference power tracking ...
This paper examines the problem of real-time optimization of networked systems and develops online algorithms that steer the system towards the optimal trajectory without explicit knowledge of the system ...
MODEL-FREE REAL-TIME OPTIMAL POWER FLOW The application considered in this paper is real-time optimization of the power injections of distributed energy resources (DERs) in a distribution system. ...
arXiv:1909.13132v1
fatcat:t7mfso65nnax7mvu6zf74nmpdi
A Feasible Reduced Space Method for Real-Time Optimal Power Flow
[article]
2021
arXiv
pre-print
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We propose a novel feasible-path algorithm to solve the optimal power flow (OPF) problem for real-time use cases. ...
The method augments the seminal work of Dommel and Tinney with second-order derivatives to work directly in the reduced space induced by the power flow equations. ...
This requires adaptation of optimal power flow (OPF) algorithms for operation in a real-time setting. ...
arXiv:2110.02590v1
fatcat:kqchrxrbxzbxphoykvzipipxp4
A Framework for Real-Time Optimal Power Flow under Wind Energy Penetration
2017
Energies
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Without considering REG, a real-time implementation of optimal reactive power flow was reported in [7] where the sampling time was between 15 min up to four hours. ...
Developing a suitable framework for real-time optimal power flow (RT-OPF) is of utmost importance for ensuring both optimality and feasibility in the operation of energy distribution networks (DNs) under ...
real-time optimal power flow (RT-OPF) for a prediction horizon. ...
doi:10.3390/en10040535
fatcat:lmacky3rsvdsbg2ar2evmsninq
Performance Analysis of Distributed Real Time Optimization Technique for Optimal Power Flow Problems
2019
International Journal of Engineering and Advanced Technology
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This paper realizes in real time optimization and to track the time varying OPF problem and for numerical optimization method different quasi-Newton methods are used. ...
In centralized approach of optimization, optimal power flow operation is performed by collecting information at central controller. ...
Therefore for real time operation deterministic optimal power flow techniques are not appropriate. ...
doi:10.35940/ijeat.f1245.0986s319
fatcat:jbfpllmuvng25kc22hito7hkfa
Real-time pricing and distributed decision makings leading to optimal power flow of power grids
2015
2015 American Control Conference (ACC)
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We consider the optimal power flow problem with the DC power flow model, and the New England 39-bus test system is used. ...
Motivated by distributed control problems of power supply/demand networks, this paper investigates application case studies of the real-time pricing and distributed decision makings methodology. ...
real-time. ...
doi:10.1109/acc.2015.7171073
dblp:conf/amcc/HirataHU15
fatcat:vkws7jnmebgelgsquwn37b4xey
Real-Time Active-Reactive Optimal Power Flow with Flexible Operation of Battery Storage Systems
2020
Energies
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In this paper, a multi-phase multi-time-scale real-time dynamic active-reactive optimal power flow (RT-DAR-OPF) framework is developed to optimally deal with spontaneous changes in wind power in distribution ...
time. ...
However, BSSs introduce dynamic terms to the problem of optimal power flow (OPF). ...
doi:10.3390/en13071697
fatcat:bpyb5uuuvrcm5oqtfsqdv6ipmq
Real-Time Optimal Power Flow Using Twin Delayed Deep Deterministic Policy Gradient Algorithm
2020
IEEE Access
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So, we need to calculate power flow in every moment for power balance equation. However, real-time OPF shall be very fast in computation. ...
to control and dispatch these resources in real-time [2] . ...
doi:10.1109/access.2020.3041007
fatcat:xk6m6d4v3bfqtfmdobosznbpaq
The Real-Time Research of Optimal Power Flow Calculation in Reduce Active Power Loss Aspects of Power Grid
2015
International Journal of Advanced Computer Science and Applications
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It carries out online real-time optimal flow calculation within the condition that meets the control variables and state variables of the equality and inequality constraints. ...
In order to research how to availably reduce the active power loss value in power grid system when the power system is operating, it offers a quantitative research in theory through conceiving the unbalanced ...
methods by the online real-time power flow calculation software, then let them respectively compare with the value 0.008618. ...
doi:10.14569/ijacsa.2015.060212
fatcat:ij52tw2nbffslcpzhaznd4knqm
Real-Time Dynamic Optimal Power Flow in Electric Vehicles Considering the Lifetime of the Components in the E-Powertrain
2020
Trends in Computer Science and Information Technology
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Therefore, it is necessary to perform Optimal Power Flow (OPF) in the operation of the e-powertrain. ...
This means that the expended life cost of the components can be decreased by allocating an optimal share of the total power to each energy source and power electronic device at an optimal time instance ...
E, Gasso JG, Li P (2020) Real-Time Dynamic Optimal Power Flow in Electric Vehicles Considering the Lifetime of the Components in the E-Powertrain. ...
doi:10.17352/tcsit.000020
fatcat:wvpe37kej5f73khxau3736xrxy
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