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Enhancing power grid synchronization through time delayed feedback control of solitary states

Simona Olmi, Eckehard Scholl, Halgurd Taher
2020 2020 European Control Conference (ECC)   unpublished
As a proof of principle, this fast-acting control method is demonstrated using a model of the German power transmission grid. Introduction.  ...  To cure dangerous deviations from synchronization we propose timedelayed feedback control, which is an efficient control concept in nonlinear dynamic systems.  ...  Time-delayed feedback control.  ... 
doi:10.23919/ecc51009.2020.9143594 fatcat:2swwtaqtdvfz3cdhdw3ycfnjq4

Enhancing power grid synchronization and stability through time delayed feedback control [article]

Halgurd Taher, Simona Olmi, Eckehard Schöll
2019 arXiv   pre-print
To cure dangerous deviations from synchronization we propose time-delayed feedback control, which is an efficient control concept in nonlinear dynamic systems.  ...  As a proof of principle, this fast-acting control method is demonstrated using a model of the German power transmission grid.  ...  In conclusion, we have proposed a time-delayed feedback control scheme to restore frequency synchronization and stability of the power grid after perturbations.  ... 
arXiv:1901.05201v1 fatcat:j65cjbfaqfathb5cdjo6nlprpi

Dynamic control of intermittent renewableenergy fluctuations in two-layer power grids

Simona Olmi, Carl H. Totz, Eckehard Schoell
2021 Cybernetics and Physics  
In this work we model the dynamics of power grids in terms of a two-layer network, and use the Italian high voltage power grid as a proof-of-principle example.  ...  The dynamics of the power grid is modelled by the Kuramoto model with inertia, while the communication layer provides a control signal Pc i for each generator to improve frequency synchronization within  ...  Con- ing power grid synchronization and stability through trol and prediction for blackouts caused by frequency time-delayed feedback control. Phys. Rev.  ... 
doi:10.35470/2226-4116-2021-10-3-143-154 fatcat:2wdvcvurqffdzfkjwayi4tpdpa

Optimal control of wind power plants

M. Steinbuch, W.W. de Boer, O.H. Bosgra, S.A.W.M. Peters, J. Ploeg
1988 Journal of Wind Engineering and Industrial Aerodynamics  
Using the optimal output feedback method a compromise is found between speed, power fluctuations and mechanical load.  ...  For a wind turbine with a synchronous generator and rectifier/inverter system a multivariable controller is designed.  ...  The available inputs are: delay angle Ur of the rectifier, field voltage uf of the synchronous generator and pitch angle ~ of the blades.  ... 
doi:10.1016/0167-6105(88)90039-6 fatcat:b6phxseow5bllircvmc7o2s5pe

A Comprehensive Review of the Evolution of Networked Control System Technology and Its Future Potentials

Mayank Kumar Gautam, Avadh Pati, Sunil Kumar Mishra, Bhargav Appasani, Ersan Kabalci, Nicu Bizon, Phatiphat Thounthong
2021 Sustainability  
An NCS consists of control loops joined through communication networks in which both the control signal and the feedback signal are exchanged between the system and the controller.  ...  This paper presents an extensive review of NCSs from the perspective of control system design.  ...  in the situation of stability in power grids.  ... 
doi:10.3390/su13052962 fatcat:hm2iztsfknhupkvadnhplywosy

Solitary states in the mean-field limit [article]

Nikita Kruk, Yuri Maistrenko, Heinz Koeppl
2020 arXiv   pre-print
For such systems, we analyze the appearance of solitary states via a homoclinic bifurcation as a mechanism of the frequency clustering.  ...  By introducing noise, we establish a stochastic version of solitary states and derive the mean-field limit described by a partial differential equation for a one-particle probability density function,  ...  Schöll, “Enhancing power grid synchronization and stability through time-delayed feedback control,” Phys. Rev.  ... 
arXiv:2009.06466v3 fatcat:3ugusnfcbvazteah5anznsq5sq

Electrical control strategy for an ocean energy conversion system

Muhammad Noman, Guojie Li, Keyou Wang, Bei Han
2021 Protection and Control of Modern Power Systems  
The proposed adaptive control successfully achieves maximum velocity and stable power production, with reduced speed tracking error and system response time.  ...  The robustness of the ocean energy conversion system is further enhanced by investigating the Lyapunov method and the use of a DC-DC boost converter.  ...  Acknowledgements This work is supported by National Natural Science Foundation of China (51477098).  ... 
doi:10.1186/s41601-021-00186-y fatcat:n5tvqe2r2bhw3kltmrdmkqfaae

Tangle: A Flexible Framework For Performance With Advanced Robotic Musical Instruments

Paul Mathews, Ness Morris, Jim Murphy, Ajay Kapur, Dale Carnegie
2014 Zenodo  
The network includes features to simplify the control of robotic instruments, such as automated latency compensation and self-testing, while being simple to extend in order to implement device-specific  ...  Networked musical performance using networks of computers for live performance of electronic music has evolved over a number of decades but has tended to rely upon customized and highly specialized software  ...  The drawback of adding delay to increase inter-instrument synchronization is that it also delays the sounding result of all user input to any instrument.  ... 
doi:10.5281/zenodo.1178867 fatcat:nee6bavh25dlhckwt4qxrocofm

Control of waves, patterns and turbulence in chemical systems

Alexander S. Mikhailov, Kenneth Showalter
2006 Physics reports  
the medium to global feedback with and without delays.  ...  Controlling spatiotemporal dynamics allows the realization of specific modes of behavior or may give rise to completely new types of behavior.  ...  An example demonstrating the power of directional control is shown in Fig. 48 .  ... 
doi:10.1016/j.physrep.2005.11.003 fatcat:nvz3jfzb3jfzvpylzmoo3uce2u

Characterization of a chaotic telecommunication laser for different fiber cavity lengths

V. Annovazzi-Lodi, S. Merlo, M. Norgia, A. Scire
2002 IEEE Journal of Quantum Electronics  
In view of cryptographic applications, we focus our analysis on the chaotic regime, which we investigate as a function of pump current, backreflection level, and cavity length.  ...  Experimental data are compared with numerical simulations, showing the advantages of the fiber approach.  ...  Especially for long cavities, polarization control could be performed (as required in synchronization experiments) by monitoring the polarization state through the (partial) end mirror.  ... 
doi:10.1109/jqe.2002.801948 fatcat:ptnnmrjn35hvjakjw4k4la66d4

Efficient collective swimming by harnessing vortices through deep reinforcement learning

Siddhartha Verma, Guido Novati, Petros Koumoutsakos
2018 Proceedings of the National Academy of Sciences of the United States of America  
Instead, "smart swimmer(s)" place themselves at off-center positions, with respect to the axis of the leader(s) and deform their body to synchronize with the momentum of the oncoming vortices, thus enhancing  ...  This swimming strategy leads to collective energy savings and is revealed through a combination of high-fidelity flow simulations with a deep reinforcement learning (RL) algorithm.  ...  time delay between actions and their effect.  ... 
doi:10.1073/pnas.1800923115 pmid:29784820 fatcat:ulo7vcdlwzd67lvtvgmhjgfdxq

Control Strategies of DC Microgrids Cluster: A Comprehensive Review

Zaid Hamid Abdulabbas Al-Tameemi, Tek Tjing Lie, Gilbert Foo, Frede Blaabjerg
2021 Energies  
Different schemes regarding the two significant control aspects of networked DC MGs, namely DC-link voltage control and power flow control between MGs, are investigated.  ...  Furthermore, this paper discusses three types of consensus protocol with different time boundaries, including linear, finite, and fixed.  ...  For this design, each MG in a cluster has access to a utility grid instead of a solitary power feeder to a whole cluster, increasing the reliability of the designed cluster in providing continuous power  ... 
doi:10.3390/en14227569 fatcat:qwjn4blvxrasln6jc2cql4yefe

A Review of the Optimization and Control Strategies for Fuel Cell Power Plants in a Microgrid Environment

Sfiso Ndumiso Mtolo, Akshay Kumar Saha
2021 IEEE Access  
In the recent years, microgrid has been receiving increasing attention as one typical structure in smart grid frameworks.  ...  The application of FCs into microgrids among other applications has proved advantageous  ...  [87] achieved the load-following ability of SOFCs by employing a time delay control.  ... 
doi:10.1109/access.2021.3123181 fatcat:7kyw3c3fxfbfjp7gta2hk5vuve

Optical Injection Locking: from Principle to Applications

Zhixin Liu, Radan Slavik
2019 Journal of Lightwave Technology  
We review and compare different control techniques that enable robust OIL in practical systems.  ...  Despite complex OIL dynamics, we attempt to explain the operational principle and main features of the OIL in an intuitive way, aiming at a wide understanding of the OIL and its associated techniques in  ...  The error signal then passes through a loop filter and feedback to the slave laser bias current for frequency and phase control.  ... 
doi:10.1109/jlt.2019.2945718 fatcat:zgphuxjdsnh6jlxdcsczstvq6y

Quantum/Relativistic Computation of Security and Efficiency of Electrical Power System for a Day-Ahead [article]

Stefan Z. Stefanov
2012 arXiv   pre-print
An algorithm for Electric Power System (EPS) quantum/relativistic security and efficiency computation for a day-ahead via perturbative renormalization of the EPS, finding the computation flowcharts, verification  ...  S/U-state of 'EPS-Market' system is a genuine non-equilibrium state under feedback control.  ...  Grid organization is evaluated as electrical power transfer time through the results by (Conlon, 2009) .  ... 
arXiv:1111.0808v2 fatcat:4szag5prnvfyddw5kuf67tv5ie
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