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Comparison of first- and second-order sliding-mode controllers for a dc-dc dual active bridge
(Institute of Electrical and Electronics Engineers (IEEE), 2022-04-12)
Article
Open AccessThis paper compares four sliding-mode control strategies for a dual active bridge. The proposed control algorithms define different switching functions resulting in first-and second-order controllers, and using both ... -
Sliding modes in a class of complex-valued nonlinear systems
(2021-07)
Article
Open AccessA number of physical systems allow a complex-valued representation. This article extends the theory of sliding modes to a class of nonlinear systems described by complex-valued variables. Hence, states, parameters, control ... -
A Multiple-Reference Complex-Based Controller for Power Converters
(Institute of Electrical and Electronics Engineers (IEEE), 2021-12-01)
Article
Open AccessA multiple-reference complex-based controller is proposed for three-phase power converters feeding nonlinear and unbalanced loads. The control scheme incorporates a stable multiple-complex coefficient filter with bandwidths ... -
Three-phase phase-locked loop algorithms based on sliding modes
(Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
Article
Open AccessThis article proposes a family of phase-locked loop schemes based on sliding modes. The use of sliding mode algorithms ensures fast response and global stability. In particular, two new algorithms are presented, both based ... -
Mechanical sensor fault-tolerant controller in pmsm drive: experimental evaluation of observers and signal injection for position estimation
(2021-01-01)
Article
Restricted access - publisher's policyThis paper presents the operating principle, results and conclusions for a FTC mechanical sensor that can guarantee continuity of operation on the whole speed range. This active FTC is based on analytical redundancy using ... -
A behavioural dynamic model for constant power loads in single-phase AC systems
(2021-09-01)
Article
Restricted access - publisher's policyConstant power loads (CPLs) in power systems have a destabilizing effect that gives rise to significant oscillations or to network collapse, motivating the development of new methods to analyse their effect in AC and DC ... -
Herramientas para la docencia de control digital en grados de ingeniería
(Elsevier, 2021-04-06)
Article
Open AccessEn este trabajo se describen un conjunto de materiales pedagógicos que han sido desarrollados para dar soporte a la docencia del control digital. En particular, se presentan un conjunto de herramientas interactivas y el ... -
An adaptive observer-based controller design for active damping of a DC network with a constant power load
(2021)
Article
Open AccessThis article explores a nonlinear, adaptive controller aimed at increasing the stability margin of a direct-current (dc), small-scale, electrical network containing an unknown constant power load (CPL). Due to its negative ... -
Mechanical sensor fault-tolerant controller in PMSM drive: experimental evaluation of observers and signal injection for position estimation
(2021-08-13)
Article
Restricted access - publisher's policyThis paper presents the operating principle, results and conclusions for an FTC mechanical sensor that can guarantee continuity of operation on the whole speed range. This active FTC is based on analytical redundancy using ... -
Ageing of an oscillator due to frequency switching
(2021-11-01)
Article
Restricted access - publisher's policyIf an oscillator is driven by a force that switches between two frequencies, the dynamics it exhibits depends on the precise manner of switching. Here we take a one-dimensional oscillator and consider scenarios in which ... -
Enhanced DC-link voltage utilization for sliding mode controlled PMSM drives
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Article
Open AccessSliding mode control (SMC) can be considered for torque regulation of permanent magnet synchronous machines (PMSMs) when fast transient response and/or robustness under parameter uncertainties are required. In some particular ... -
Modelling and nonlinear control of a magnetically coupled multiport DC-DC converter for automotive applications
(Institute of Electrical and Electronics Engineers (IEEE), 2021-04-21)
Article
Open AccessThis work presents a nonlinear control strategy for a magnetically coupled multiport dc-dc converter aimed at automotive applications. First, a behavioural dynamic model, based on averaging the power flowing among the ...