Journal ArticleDOI
Secondary voltage control using pilot point information
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In this article, the minimal information structure needed for monitoring and control of the voltage profile and the reactive power flow of a power system is studied, focusing on the minimum amount of information (data) required for reliable decision-making.Abstract:
The authors study the minimal information structure needed for monitoring and control of the voltage profile and the reactive power flow of a power system. Emphasis is on the minimum amount of information (data) required for reliable decision-making. An effort is made to work with fewer voltage data and therefore make the real-time monitoring and control more manageable. An annealing algorithm for selecting pilot points is presented. These are the load buses at which the voltage is to be measured in real time. Simulation results obtained with the algorithm for the Central Illinois Light Company system are presented. >read more
Citations
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Journal ArticleDOI
Trends in Microgrid Control
Daniel E. Olivares,Ali Mehrizi-Sani,Amir H. Etemadi,Claudio A. Canizares,Reza Iravani,Mehrdad Kazerani,Amir H. Hajimiragha,Oriol Gomis-Bellmunt,Maryam Saeedifard,Rodrigo Palma-Behnke,Guillermo Jimenez-Estevez,Nikos Hatziargyriou +11 more
TL;DR: The major issues and challenges in microgrid control are discussed, and a review of state-of-the-art control strategies and trends is presented; a general overview of the main control principles (e.g., droop control, model predictive control, multi-agent systems).
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Power system observability with minimal phasor measurement placement
TL;DR: In this article, the placement of a minimal set of phasor measurement units (PMUs) so as to make the system measurement model observable, and thereby linear, is investigated.
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Distributed Control Techniques in Microgrids
TL;DR: The objective of this paper is to provide a review of distributed control and management strategies for the next generation power system in the context of microgrids and identifies challenges and opportunities ahead.
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Unit commitment by simulated annealing
F. Zhuang,Francisco D. Galiana +1 more
TL;DR: In this article, a general optimization method, known as simulated annealing, is applied to generation unit commitment, by exploiting the resemblance between a minimization process and the cooling of a molten metal, generated feasible solutions randomly and moves among these solutions using a strategy leading to a global minimum with high probabilities.
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Transmission system expansion planning by simulated annealing
TL;DR: In this article, a simulated annealing approach to the long-term transmission expansion planning problem is presented, which is a hard, large scale combinatorial problem and is compared with a more conventional optimization technique based on mathematical decomposition with a zero-one implicit enumeration procedure.
References
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Cooling Schedules for Optimal Annealing
TL;DR: A Monte Carlo optimization technique called “simulated annealing” is a descent algorithm modified by random ascent moves in order to escape local minima which are not global minima.
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Survey of the Secondary Voltage Control in France : Present Realization and Investigations
TL;DR: In this article, the authors present a review of the present regional secondary voltage control, and the prospects for the evolution towards a co-ordinated system, based on a sensitivity matrix model, closed-loop pole assignment and adaptive techniques.
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A tutorial survey of theory and applications of simulated annealing
TL;DR: The basic theory of simulated annealing is reviewed, its recent applications are surveyed, and the theoretical approaches that have been used to study the technique are surveyed.
Journal ArticleDOI
Optimum Control of Reactive Power Flow
TL;DR: In this paper, the problem of minimizing the operating cost of a power system by proper selection of the active and reactive productions is formulated as a nonlinear programming problem, and an efficient computational procedure based on the Newton-Raphson method for solving the power-flow equations and on the dual Lagrangian variables of the Kuhn and Tucker theorem is discussed.
Journal ArticleDOI
Real Time Control of System Voltage and Reactive Power
TL;DR: In this article, a centralized optimizing computational algorithm for the on-line control of voltage and reactive power is presented, where the body of the paper is divided into two parts: the main body is devoted to the analysis and the body is dedicated to the implementation of the algorithm.