Multivariable Control Structure Design for Voltage Regulation in Active Distribution Networks

Authors

Keywords:

Distributed Generation, Active Distribution Network, Voltage Control, Multivariable Control design, Process System Engineering

Abstract

The distributed generation (DG) paradigm has driven the growth of small and medium-scale renewable generation systems located close to demand centers. As a consequence, traditional distribution networks are in a transition towards the so-called Active Distribution Networks (ADNs). However, the intermittent nature of renewable generation causes rapid voltage fluctuations that are difficult to manage and deteriorate power quality. In the literature, the tasks corresponding to the design of voltage control in ADNs are addressed in a heuristic and sequential manner. In this work, a systematic strategy is proposed for the analysis, design and implementation of controllers for voltage regulation in ADNs with DG, based on the Plant Wide Control (PWC) theory of the Process Systems Engineering (PSE) community. This strategy allows us to find control structures that optimize the hardware necessary for its implementation and have good dynamic performance. The general PWC design procedure is formulated as a mixed integer two-level nonlinear programming with cost functions that only depend on the steady state models of the network. To evaluate the proposed methodology, the IEEE 33 distribution network model is used, to which 6 DGs are incorporated. The application of the proposed methodology to identify and evaluate different control structures contributes to the generation of systematic tools to approach the ADN control design process in a comprehensive manner, based on quantitative information.

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Author Biographies

Pablo G. Rullo, CIFASIS-CONICET, Rosario, Argentina. Departamento de Ingeniería Eléctrica, Facultad Regional San Nicolás (FRSN-UTN)

Received the degree in electronic engineering from the National University of Rosario (UNR), Rosario, Argentina, in 2009 and Ph.D. degree in 2017. He is assistant researcher of CONICET and Associate Professor of the electrical engineering department of San Nicolás Regional Faculty (FRSN), National Technological University (UTN). His main interests are renewable generation systems and multivariable control design strategies applied to microgrids and distributed generation.

Lautaro Braccia, CIFASIS-CONICET

Lautaro Braccia received the degree in chemical engineering from the National Technological University (UTN), Rosario, Argentina, in 2014 and Ph.D. degree at the National University of Rosario (UNR), Rosario, Argentina, in 2019. He is assistant researcher of CONICET. His main research topics are energy integration, process operability assessment, and simultaneous strategies for process synthesis and control.

Diego Feroldi, CIFASIS-CONICET

Received the degree in electronic engineering from the National University of Rosario in 2001 and a Phd degree in Engineering Sciencies from the Polytechnic University of Catalonia in 2009. He is a researcher at the CIFASIS-CONICET-UNR institute and a professor at the FCEIA-UNR. Currently his research is focused in the area of Optimal Control applied to Electrical Power Systems.

David Zumoffen, CIFASIS-CONICET

Received both, the Electronic Engineering and the Ph.D. degree at the National University of Rosario (UNR), Rosario, Argentina, in 2002 and 2008, respectively. He is Independent Researcher of CONICET and Adjunct Professor at the National Technological University (UTN-FRRo). Currently, he is the head of the Process Systems Engineering Group (PSEG) at the French-Argentine Center for Information and Systems Sciences (CIFASIS), Rosario, Argentina. He is the author of two books and more than one hundred works. His main research topics are plant-wide control, process monitoring, and control performance assessment

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Published

2022-01-21

How to Cite

Rullo, P. G., Braccia, L., Feroldi, D., & Zumoffen, D. (2022). Multivariable Control Structure Design for Voltage Regulation in Active Distribution Networks. IEEE Latin America Transactions, 20(5), 839–847. Retrieved from https://latamt.ieeer9.org/index.php/transactions/article/view/6104