Real-Time Selective Harmonic Mitigation Technique for Power Converters Based on the Exchange Market Algorithm

Abraham Marquez Alcaide, Jose I. Leon, Marta Laguna, Francisco Gonzalez-Rodriguez, Ramon Portillo, Eduardo Zafra-Ratia, Sergio Vazquez, Leopoldo G. Franquelo, Sertac Bayhan and Haitham Abu-Rub
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Abraham Marquez Alcaide: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Jose I. Leon: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Marta Laguna: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Francisco Gonzalez-Rodriguez: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Ramon Portillo: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Eduardo Zafra-Ratia: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Sergio Vazquez: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Leopoldo G. Franquelo: Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
Sertac Bayhan: Qatar Environment and Energy Research Institute, Doha, Qatar
Haitham Abu-Rub: Texas A & M University at Qatar, Doha, Qatar

Energies, 2020, vol. 13, issue 7, 1-17

Abstract: Hand-in-hand with the smart-grid paradigm development, power converters used in high-power applications are facing important challenges related to efficiency and power quality. To overcome these issues, the pre-programmed Pulse-Width Modulation (PWM) methods have been extensively applied to reduce the harmonic distortion with very low power switching losses for high-power converters. Among the pre-programmed PWM techniques, Selective Harmonic Elimination (SHE) has been the prevailing solution, but recently, Selective Harmonic Mitigation (SHM) stands as a superior alternative to provide further control of the harmonic spectrum with similar losses. However, the large computational burden required by the SHM method to find a solution confines it as an off-line application, where the switching set valid solutions are pre-computed and stored in a memory. In this paper, for the first time, a real-time implementation of SHM using an off-the-shelf mid-range microcontroller is presented and tested. The Exchange Market Algorithm (EMA), initially focused on optimizing financial transactions, is considered and executed to achieve the SHM targets. The performance of the EMA-based SHM is presented showing experimental results considering a reduced number of switching angles applied to a specific three-level converter, but the method can be extrapolated to any other three-level converter topology.

Keywords: power converters; harmonic distortion; pulse-width modulation; metaheuristic search algorithms (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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