Synergistic control and cooperative operation of distributed harmonic and reactive compensators

Tedeschi, Elisabetta; Tenti, P.; Mattavelli, Paolo

doi:10.1109/pesc.2008.4592004

Cited by 23 publications

(15 citation statements)

References 26 publications

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“…Finally, 0 M ×N and 1 M ×N denotes M × N matrices with all zeroes and ones, respectively. 2 The symbols defined throughout the paper are recapitulated in Table I. I φ m→n is the complex current from node m to node n on phase φ ∈ P mn . Thus, the cost to be minimized here is [6]…”

Section: Modeling and Problem Formulationmentioning

confidence: 99%

“…Besides bringing power generation closer to the end user, DG units offer environment-friendly advantages over conventional generation [1], may provide ancillary services such as reactive and harmonic compensation [2], [3], and enable DG owners to actively participate in grid operations through supply contracts and pricing schemes. On the other hand, their operation must be carefully controlled in order to prevent abrupt voltage fluctuations, which stem from the well known sensitivity of voltages to variations of power injections, node over-and under-voltages [4], and drops of the power factor Manuscript at the distribution substation [5].…”

Section: Introductionmentioning

confidence: 99%

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Distributed Optimal Power Flow for Smart Microgrids

Dall’Anese

Zhu

Giannakis

2013

IEEE Trans. Smart Grid

631

449

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Abstract-Optimal power flow (OPF) is considered for microgrids, with the objective of minimizing either the power distribution losses, or, the cost of power drawn from the substation and supplied by distributed generation (DG) units, while effecting voltage regulation. The microgrid is unbalanced, due to unequal loads in each phase and non-equilateral conductor spacings on the distribution lines. Similar to OPF formulations for balanced systems, the considered OPF problem is nonconvex. Nevertheless, a semidefinite programming (SDP) relaxation technique is advocated to obtain a convex problem solvable in polynomial-time complexity. Enticingly, numerical tests demonstrate the ability of the proposed method to attain the globally optimal solution of the original nonconvex OPF. To ensure scalability with respect to the number of nodes, robustness to isolated communication outages, and data privacy and integrity, the proposed SDP is solved in a distributed fashion by resorting to the alternating direction method of multipliers. The resulting algorithm entails iterative message-passing among groups of consumers and guarantees faster convergence compared to competing alternatives.

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Section: Modeling and Problem Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distributed Optimal Power Flow for Smart Microgrids

Dall’Anese

Zhu

Giannakis

2013

IEEE Trans. Smart Grid

631

449

View full text Add to dashboard Cite

show abstract

“…|C r | 1 T Crū u k . By using (9), and via a series of simple but rather tedious computation it can be seen that (21)…”

Section: Gradient Estimation Via Local Voltage Measurementmentioning

confidence: 99%

A Distributed Control Strategy for Reactive Power Compensation in Smart Microgrids

Bolognani

Zampieri

2013

IEEE Trans. Automat. Contr.

260

217

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We consider the problem of optimal reactive power compensation for the minimization of power distribution losses in a smart microgrid. We first propose an approximate model for the power distribution network, which allows us to cast the problem into the class of convex quadratic, linearly constrained, optimization problems. We then consider the specific problem of commanding the microgenerators connected to the microgrid, in order to achieve the optimal injection of reactive power. For this task, we design a randomized, gossip-like optimization algorithm. We show how a distributed approach is possible, where microgenerators need to have only a partial knowledge of the problem parameters and of the state, and can perform only local measurements. For the proposed algorithm, we provide conditions for convergence together with an analytic characterization of the convergence speed. The analysis shows that, in radial networks, the best performance can be achieved when we command cooperation among units that are neighbors in the electric topology. Numerical simulations are included to validate the proposed model and to confirm the analytic results about the performance of the proposed algorithm.

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“…Las microredes están localizadas, frecuentemente, cerca a las subestaciones de distribución y abastecen cargas industriales y residenciales que pueden incluir elementos de GD y dispositivos de almacenamiento de energía (Hatziargyriou, et al 2007). Las microredes prestan servicios auxiliares específicos, como la compensación de potencia reactiva y de armónicos (Tedeshi, 2008;Bolognani, 2013).…”

Section: Contratos De Cargasunclassified

Propuesta de diseño para un centro integral de reciclaje con inclusión de fuentes alternativas de energía

2014

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RESUMENReciclaje Residuos Cluster económico UML Generación distribuida Micro-red. Rev. esc.adm.neg. No. 77 Julio-Diciembre Bogotá, Pp. 136-151 Recycling Residuals Economic cluster UML Distributed generation Palabras claveKeywords ABSTRACT El presente artículo, plantea una solución integral al problema del manejo de basuras en centros urbanos, realizando el reciclaje de los desechos, creando un Cluster económico y generando energía eléctrica de bajo costo con relación a sistemas de generación y distribución actuales. La solución propuesta atiende requerimientos medioambientales y de salubridad, a través de la reducción y procesamiento de basuras, cuya inadecuada disposición puede llegar a afectar la salud humana. Finalmente, busca contribuir al desarrollo socioeconómico de las regiones. Se muestra el diseño de un centro integral de reciclaje con fuentes alternativas de energía, cuya modelación se basa en la metodología del Lenguaje de Modelación Universal (por sus siglas en inglés, UML).This article describes an integral solution to the problem of trash manipulation in urban centers, recycling trash, creating an economic cluster and generating low-cost-electrical energy in relation with the current systems of generation and distribution. This proposal responds to environmental and health requirements through the reduction and processing of trash, whose wrong disposal affects human health and welfare, finally contributing to socio-economic development of all regions. A design of an integral recycling center using alternative sources of energy is presented, which focuses on the application of a universal modeling language (UML).Cet article présente une solution globale au problème de la gestion des déchets dans les centres urbains grâce au recyclage des résidus, à la création d'un réseau économique autour du du secteur du recyclage et grâce à la production d'énergie électrique à bas coût concurrençant les systèmes actuels de production et de distribution. La solution proposée répond aux exigences environnementales et sanitaires de réduction et de traitement des déchets dont la gestion inadéquate peut affecter négativement la santé publique, et contribue dans le même temps au développement socio -économique des régions. L'article étudie la conception d'un centre de recyclage complet utilisant les sources d'énergie alternative dont la modélisation est basée sur la méthodologie UML (Universal Modeling Language). RESUMÉÉ Mots clefsRecyclage Déchets Pôle économique UML Production décentralisée Réseau Micro RESUMO Reciclagem Resíduos Cluster econômico UML Geração distribuída Micro rede.

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Synergistic control and cooperative operation of distributed harmonic and reactive compensators

Cited by 23 publications

References 26 publications

Distributed Optimal Power Flow for Smart Microgrids

Distributed Optimal Power Flow for Smart Microgrids

A Distributed Control Strategy for Reactive Power Compensation in Smart Microgrids

Propuesta de diseño para un centro integral de reciclaje con inclusión de fuentes alternativas de energía

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