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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Geometric-based PID control design with selective harmonic mitigation for DC-DC converters by imposing a norm bound on the sensitivity function

Full text
Author(s):
Magossi, Rafael F. Q. [1, 2] ; Han, Sangjin [3] ; Machado, Ricardo Q. [1] ; Oliveira, Vilma A. [1] ; Bhattacharyya, Shankar P. [3]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Dept Elect & Comp Engn, Sao Carlos, SP - Brazil
[2] CEFET RJ, Fed Ctr Technol Educ, Rio De Janeiro - Brazil
[3] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX - USA
Total Affiliations: 3
Document type: Journal article
Source: IET Control Theory and Applications; v. 14, n. 19, p. 3330-3337, DEC 21 2020.
Web of Science Citations: 0
Abstract

The DC-DC converters usually interfaces renewable energy sources in DC microgrids which may be contaminated by harmonic perturbations that adversely affect performance, creates stability and protection problems in a DC grid system. In this paper, the authors propose the use of the popular proportional-integral-derivative (PID) controller to mitigate selected harmonics. The solution is obtained by computing the complete set of stabilising controllers and imposing a bound on the sensitivity function. Using matrix representation of conic sections, the geometric-based PID controller is derived in the controller parameter space. The main result finds a subset of the stabilising set in which the controller mitigate harmonics with prescribed levels of attenuation which are constructively determined for each frequency of the selected harmonics. Simulation and experimental results using a boost converter are provided for validation. (AU)

FAPESP's process: 16/21120-2 - Tuning an adaptive PID controller obtained via linear optimization with constraints and pointwise Thévenin equivalent
Grantee:Rafael Fernando Quirino Magossi
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 16/25017-1 - Measurement-Based Control and Its Applications
Grantee:Vilma Alves de Oliveira
Support Opportunities: Regular Research Grants
FAPESP's process: 17/21577-5 - Use of stabilizers sets as linear constraints to obtain the gains of a PID controller obtained via quadratic optimization
Grantee:Rafael Fernando Quirino Magossi
Support Opportunities: Scholarships abroad - Research Internship - Master's degree