Identification and Control of a Cryogenic Current Comparator Using Robust Control Theory

Author

Bierzychudek, Marcos Eduardo ; Sanchez-Pena, Ricardo S. ; Tonina, Alejandra

Author_Institution

Centro de Fis. y Metrol., Inst. Nac. de Tecnol. Ind., Buenos Aires, Argentina

Volume

64

Issue

12

fYear

2015

Firstpage

3451

Lastpage

3457

Abstract

This paper presents the model identification of a cryogenic current comparator (CCC). A dynamic model set is obtained and compared with the experimental data in order to provide a realistic dynamical behavior of the system. To improve the performance of the CCC, an H_∞ optimal controller is designed based on this model set. In this framework, a robust stability guarantee is provided and the simulations of the closed-loop system illustrate the performance and robustness improvements.

Keywords

H^∞ control; closed loop systems; control system synthesis; cryogenics; current comparators; robust control; CCC; H_∞ optimal controller design; closed-loop system simulations; cryogenic current comparator control; cryogenic current comparator identification; dynamic model set; robust control theory; robust stability guarantee; Cryogenic electronics; Electrical resistance measurement; H infinity control; Metrology; Robust control; SQUIDs; $ {mathcal H}_infty $ control; Current comparator; H∞ control; metrology; resistance measurement; superconducting quantum interference device (SQUID); superconducting quantum interference device (SQUID).;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2015.2459472

Filename

7181675