Title
I-LQG control of DC-DC boost converters
Abstract
We present a detailed design of a linear quadratic Gaussian control system with integral action (I-LQG) for a switched-mode DC-DC boost converter. Initially, identification tests were carried out to obtain an adequate linear model of the converter - using a black-box simulation model in MATLAB and Simulink. Then, we proceeded with the design of LQG and I-LQG control systems in three steps. First, we designed a linear quadratic regulator (LQR). After that, we constructed a linear quadratic estimator (LQE) of Kalman type and completed a LQG control system using the separation principle. Finally, we added integral action to the system and derived new LQR and LQE to construct the I-LQG control system. We tested the LQG and I-LQG control systems in the black-box model. These tests showed the effectiveness of the controllers for the regulation of the converter's output, for the rejection of constant perturbations, and for the attenuation of noise in measurements.
Year
DOI
Venue
2014
10.1109/ICEEE.2014.6978327
CCE
Keywords
DocType
Citations 
dc-dc power convertors,control system synthesis,estimation theory,linear quadratic gaussian control,linear systems,switching convertors,i-lqg control,kalman type,lqe,lqg control system,matlab simulation,simulink simulation,blackbox simulation model,constant perturbation rejection,identification testing,linear quadratic gaussian control system with integral action,linear quadratic estimator,linear quadratic regulator,noise attenuation measurement,separation principle,switched-mode dc-dc boost converter,kalman filter,lqg,lqr,boost converter,switched-mode power supply
Conference
0
PageRank 
References 
Authors
0.34
0
4