Switching Pattern Improvement for One-Cycle Zero-Integral-Error Current Controller

[EN] The one-cycle current control is a non-linear technique based on the cycle-by-cycle calculation of the ON time of the power converter switches. Its application is not common in tracking fast-changing reference currents, due to the necessity of fast and accurate measurements, and high-speed comp...

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Bibliographic Details
Authors: Orts-Grau, Salvador|||0000-0003-4057-620X, Martínez Navarro, German|||0000-0002-1904-7322, Gimeno Sales, Francisco José|||0000-0001-5129-1184, Segui-Chilet, Salvador|||0000-0002-2927-6938, Balaguer-Herrero, P., Alfonso-Gil, J. Carlos, Martínez-Márquez, Camilo I.
Format: article
Publication Date:2022
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/187380
Online Access:https://riunet.upv.es/handle/10251/187380
Access Level:Open access
Keyword:Current control
Power converters
One-cycle controller
Active filters
Power quality
TECNOLOGIA ELECTRONICA
09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación
Description
Summary:[EN] The one-cycle current control is a non-linear technique based on the cycle-by-cycle calculation of the ON time of the power converter switches. Its application is not common in tracking fast-changing reference currents, due to the necessity of fast and accurate measurements, and high-speed computing. In a previous study, a one-cycle digital current controller based on the minimization of the integral error of the current was developed and applied to the control of a three-phase shunt active power filter. In the present work, the one-cycle controller has been improved by proposing a new switching pattern. It allows an easy implementation that reduces the critical computational cost and avoids the main drawbacks of the previous implementation. The controller has been applied in a three-leg four-wire shunt active power filter, including a stability analysis considering the proposed switching pattern. Simulated and experimental results are presented to validate the proposed controller.

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