TY  - EJOU
AU  - Prasanna, R. 
AU  - Govindarajan, Uma 
AU  - Bhuvaneswari, N. S. 

TI  - Optimized Model Based Controller with Model Plant Mismatch for NMP Mitigation in Boost Converter
T2  - Computer Systems Science and Engineering

PY  - 2023
VL  - 46
IS  - 2
SN  - 

AB  - In this paper, an optimized Genetic Algorithm (GA) based internal model controller-proportional integral derivative (IMC-PID) controller has been designed for the control variable to output variable transfer function of dc-dc boost converter to mitigate the effect of non-minimum phase (NMP) behavior due to the presence of a right-half plane zero (RHPZ). This RHPZ limits the dynamic performance of the converter and leads to internal instability. The IMC PID is a streamlined counterpart of the standard feedback controller and easily achieves optimal set point and load change performance with a single filter tuning parameter λ. Also, this paper addresses the influences of the model-based controller with model plant mismatch on the closed-loop control. The conventional IMC PID design is realized as an optimization problem with a resilient controller being determined through a genetic algorithm. Computed results suggested that GA–IMC PID coheres to the optimum designs with a fast convergence rate and outperforms conventional IMC PID controllers.
KW  - Boost converter; non-minimum phase; internal model control; dynamic controller

DO  - 10.32604/csse.2023.032424