Robust structured controller synthesis for interleaved boost converters using an H_∞ control method

Abstract

The regulation of output voltage and equivalent distribution of phase currents of multi-phase converters which have non-minimum phase characteristic are still challenges, especially in the presence of uncertainties in real parameters, duty cycle, input voltage, and load disturbances. However, in classical third-order integral-lead (Type-III) controller design methodologies, the controller is synthesized considering only the nominal performance conditions. This paper proposes a structured [Formula: see text] synthesis framework based on an optimization methodology to the design of a robust Type-III controller for interleaved boost converters. The structured [Formula: see text] control approach is adapted for optimization of Type-III feedback and feedforward controllers in two-degree-of-freedom (2-DOF) control system configuration. The robust stability of the closed-loop interleaved boost converter system against model uncertainties is ensured via the classical [Formula: see text]-analysis technique. Numerical comparisons are made among the classical, i.e. unstructured or full order, [Formula: see text]-based controller design method, a dual-loop PI controller, and proposed 1-DOF and 2-DOF structured controller synthesis approaches on an interleaved boost converter model. Simulation results verify the effectiveness and advantages of the proposed approach from the viewpoint of the output voltage regulation under different disturbance points.

Multi-Objective Optimisation-based Robust H∞ Controller Design Approach for a Multi-Level DC-DC Voltage Regulator

“…The closed-loop power system of the IBC is presented in Fig. 1 The control-to-output variable model of the converter is given in (17) with all possible parasitic resistances [35] Fig. 1.…”

Implementation of Nonlinear Controller to Improve DC Microgrid Stability: A Comparative Analysis of Sliding Mode Control Variants

“…The selection of capacitor and inductor values holds great importance as it directly affects the performance of the DC-DC converters [15]. H ∞ control has been employed in one of the approaches to controlling the output from a DC-DC interleaved boost converter [16]. The goal is to have minimum ripples and harmonics in the current to increase the lifetime of the FC and HESS, for which a smaller component size is preferred [17].…”

Design and experimental implementation of DC-DC converter based self-tuning fuzzy PI controller

“…Keskin vd. [35] serpiştirilmiş yükselten dönüştürücüde Tip-III denetleyicinin tasarımına bir optimizasyon yöntemine dayalı yapılandırılmış H∞ sentez yaklaşımı önermişlerdir. Yapılandırılmış H∞ yaklaşımı, iki serbestlik dereceli (2-DOF) denetim sistemi konfigürasyonunda Tip-III geri besleme ve ileri beslemeli denetleyicilerin optimizasyonu için uyarlanmıştır.…”