Quantitative Feedback Design-Based Robust PID Control of Voltage Mode Controlled DC-DC Boost Converter

Abstract

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Nonlinear robust‐optimal control of boost converter in photovoltaic applications

“…To comparison with other robust controllers, a quantitative feedback theory (QFT)-based PID controller is considered. 17 In this case the boost converter is used to convert 10-v input voltage to 15-v output voltage. In this study, as a popular disturbance in PV systems, the input voltage is reduced from 10 to 7 v in second 0.2.…”

“…16 To evaluate the proposed technique, a conventional PI controller and a quantitative feedback theory (QFT)-based PID controller are considered for comparison with proposed robust-optimal controller. 17 The advantage of the robust-optimal controller over the QFT PID controller and conventional PI controller is shown by numerical simulations using MATLAB/Simulink software. The article is organized as follows: system description is reviewed in Section 2; the robust optimal controller is designed in Section 3; simulation results are given in Section 4; finally, conclusion is stated in Section 5.…”

“…Also, in this technique, there is no need to linearize the nonlinear system equations for using in LQR theory 16 . To evaluate the proposed technique, a conventional PI controller and a quantitative feedback theory (QFT)‐based PID controller are considered for comparison with proposed robust‐optimal controller 17 . The advantage of the robust‐optimal controller over the QFT PID controller and conventional PI controller is shown by numerical simulations using MATLAB/Simulink software.…”

Comparação de Controladores Pids Robustos Otimizados Para Aplicação em Conversores de Potência

“…Na literatura, há muitos trabalhos que utilizam controladores PIDs em conversores de potência, em especial conversores CC-CC, sendo que importantes diretrizes para o projeto podem ser encontradas em [14], com base em características no domínio da frequência ou na resposta ao degrau do sistema de malha fechada. De fato, considerando que boa parte destes conversores podem ser adequadamente aproximados por plantas com dinâmicas de ordem relativamente baixa, os controladores PID são frequentemente utilizados como referência de desempenho nesta aplicação, aliando boa qualidade de rastreamento em regime permanente e rápidas respostas transitórias [10], [15]- [17].…”

Multivariable Unconstrained Pattern Search Method for Optimizing Digital PID Controllers Applied to Isolated Forward Converter

“…In [16], the adaptive nonsingular TSMC was integrated with neural networks (NNs) to realize fault-tolerant control for the simultaneous compensation of model uncertainties and disturbances, as well as actuator faults. Authors in [17] proposed a robust PID controller with quantitative feedback theory (QFT) to ensure stability in the presence of model uncertainties and external disturbances. The control approaches, however, may require a time-consuming trial-and-error tuning procedure to ensure superior performance.…”