Author
Ramon Costa-Castelló
Other affiliations: Polytechnic University of Catalonia, ETSEIB
Bio: Ramon Costa-Castelló is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Repetitive control & Control theory. The author has an hindex of 20, co-authored 140 publications receiving 1812 citations. Previous affiliations of Ramon Costa-Castelló include Polytechnic University of Catalonia & ETSEIB.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, an all-digital approach based on the repetitive control technique was proposed for the control of a single-phase shunt active power filter with a full-bridge boost topology.
Abstract: Shunt active power filters have been proved as useful elements to correct distorted currents caused by nonlinear loads in power distribution systems. This work presents an all-digital approach, based on the repetitive control technique, for their control. In particular, a special digital repetitive plug-in controller for odd-harmonic discrete-time periodic references and disturbances is used. This approach does not introduce high gain at those frequencies for which it is not needed, and thus it improves robustness. Additionally, the necessary data memory capacity is lower than in traditional repetitive controllers. The design is performed for the particular case of single-phase shunt active filter with a full-bridge boost topology. Several experimental results are also presented to show the good behavior of the closed-loop system.
225 citations
TL;DR: An all-digital approach based on a particular repetitive control technique for odd-harmonic discrete-time periodic references and disturbances is used for the current control loops of the active filter to improve robustness of the controlled system.
Abstract: Shunt active power filters have been proved as useful elements to correct distorted currents caused by nonlinear loads in power distribution systems. This paper presents an all-digital approach based on a particular repetitive control technique for their control. Specifically, a digital repetitive plug-in controller for odd-harmonic discrete-time periodic references and disturbances is used for the current control loops of the active filter. This approach does not introduce a high gain at those frequencies for which it is not needed and, thus, improves robustness of the controlled system. The active power balance of the whole system is assured by an outer control loop, which is designed from an energy-balancing perspective. The design is performed for a three-phase four-wire shunt active filter with a full-bridge boost topology. Several experimental results are also presented to show the good behavior of the closed-loop system
207 citations
TL;DR: This work develops a digital repetitive plug-in controller for odd-harmonic discrete-time periodic references and disturbances that has a lower data memory occupation than the usual repetitive controllers because it takes advantage of the particular characteristics of the signals to track or attenuate.
115 citations
TL;DR: In this article, a review of the existing literature on supervisory control for improving the energy flexibility provided by heat pumps in buildings is presented, where a distinction was drawn between rule-based controls (RBC) and model predictive controls (MPC), given the clear differences in their concept and complexity.
103 citations
TL;DR: In this article, an energy management strategy based on the estimation of short-term future energy demand and aiming at maintaining the state of energy of the supercapacitor between two limits is presented.
99 citations
Cited by
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Journal Article•
28,685 citations
01 Jan 2002
TL;DR: In this paper, the interactions learners have with each other build interpersonal skills, such as listening, politely interrupting, expressing ideas, raising questions, disagreeing, paraphrasing, negotiating, and asking for help.
Abstract: 1. Interaction. The interactions learners have with each other build interpersonal skills, such as listening, politely interrupting, expressing ideas, raising questions, disagreeing, paraphrasing, negotiating, and asking for help. 2. Interdependence. Learners must depend on one another to accomplish a common objective. Each group member has specific tasks to complete, and successful completion of each member’s tasks results in attaining the overall group objective.
2,171 citations
09 Oct 2006
TL;DR: The proportional-resonant (PR) controllers and filters, and their suitability for current/voltage control of grid-connected converters, are described in this article.
Abstract: The recently introduced proportional-resonant (PR) controllers and filters, and their suitability for current/voltage control of grid-connected converters, are described. Using the PR controllers, the converter reference tracking performance can be enhanced and previously known shortcomings associated with conventional PI controllers can be alleviated. These shortcomings include steady-state errors in single-phase systems and the need for synchronous d-q transformation in three-phase systems. Based on similar control theory, PR filters can also be used for generating the harmonic command reference precisely in an active power filter, especially for single-phase systems, where d-q transformation theory is not directly applicable. Another advantage associated with the PR controllers and filters is the possibility of implementing selective harmonic compensation without requiring excessive computational resources. Given these advantages and the belief that PR control will find wide-ranging applications in grid-interfaced converters, PR control theory is revised in detail with a number of practical cases that have been implemented previously, described clearly to give a comprehensive reference on PR control and filtering.
1,483 citations
TL;DR: In this article, a review of recent advances in supercapacitor (SC) technology with respect to charge storage mechanisms, electrode materials, electrolytes (e.g., particularly paper/fiber-like 3D porous structures), and their practical applications is presented.
1,058 citations