DocumentCode :
713380
Title :
Modern design of classical controllers: Digital PI controllers
Author :
Diaz-Rodriguez, Ivan D. ; Bhattacharyya, Shankar P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
fYear :
2015
fDate :
17-19 March 2015
Firstpage :
2112
Lastpage :
2119
Abstract :
In this paper we describe a new approach to the design of digital Proportional-Integral (PI) controllers. The approach consists of first parametrizing constant magnitude and constant phase loci in the space of controller gains. These loci consist of ellipses and straight lines respectively. The set of stabilizing controllers S is then computed using methods described in [1]. The final step is to specify the desired closed-loop stability margins and crossover frequencies and determine the sets of controllers achieving these specifications that lie in S. The design procedure is simple and graphical and is illustrated by a numerical example and a power electronics application of a voltage source inverter.
Keywords :
PI control; closed loop systems; control engineering computing; digital control; invertors; stability; classical controller design; closed-loop stability margins; constant phase loci; controller gain; crossover frequencies; digital PI controller; digital proportional-integral controller design; parametrizing constant magnitude; power electronics application; voltage source inverter; Aerospace electronics; Frequency response; Gain; Inverters; Numerical stability; Polynomials;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Technology (ICIT), 2015 IEEE International Conference on
Conference_Location :
Seville
Type :
conf
DOI :
10.1109/ICIT.2015.7125408
Filename :
7125408
Link To Document :
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