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PSO-Based Nonlinear PI-type Controller Design for Boost Converter
Sang-Wha Seo*, Yong Kim and Han Ho Choi**
Abstract This paper designs a nonlinear PI-type controller for the robust control of a boost DC-DC converter using a particle swarm optimization (PSO) algorithm. Based on the common knowledge that the transient responses can be improved if the P and I gains increase when the transient error is big, a nonlinear PI-type control design method is developed. A design procedure to autotune the nonlinear P and I gains is given based on a PSO algorithm. The proposed nonlinear PI-type controller is implemented in real time on a Texas Instruments TMS320F28335 floating-point DSP. Simulation and experimental results are given to demonstrate the effectiveness and practicality of the proposed method.
Keyword Particle swarm optimization (PSO), PI control, Boost converter, Uncertainty, Nonlinear system
Status Before proofreading
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