A robust hybrid control algorithm for a single-phase DC/AC inverter with variable input voltage

Author

Jun Chai ; Sanfelice, Ricardo G.

Author_Institution

Dept. of Aerosp. & Mech. Eng., Univ. of Arizona, Tucson, AZ, USA

fYear

2014

fDate

4-6 June 2014

Firstpage

1420

Lastpage

1425

Abstract

In this paper, we analyze the properties of the vector fields associated with all possible configurations of a single-phase DC/AC inverter with the objective of designing a hybrid controller for the generation of an approximation of a sinusoidal reference signal. Using forward invariance tools for general hybrid systems, a hybrid controller is designed for the switched differential equations capturing the dynamics of the DC/AC inverter. Then, global asymptotic stability of a set of points nearby the reference trajectory, called the tracking band, is established. This property is found to be robust to small perturbations, and variation of the input voltage. Simulations illustrating the major results are included.

Keywords

DC-AC power convertors; asymptotic stability; control system synthesis; differential equations; hybrid power systems; invariance; perturbation techniques; robust control; time-varying systems; voltage control; forward invariance tools; general hybrid systems; global asymptotic stability; hybrid controller design; reference trajectory; robust hybrid control algorithm; single-phase DC/AC inverter dynamics; sinusoidal reference signal; small perturbations; switched differential equations; tracking band; variable input voltage; vector fields; Closed loop systems; Inverters; Silicon; Trajectory; Vectors; Voltage control; Hybrid systems; Power systems; Stability of hybrid systems;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference (ACC), 2014

Conference_Location

Portland, OR

ISSN

0743-1619

Print_ISBN

978-1-4799-3272-6

Type

conf

DOI

10.1109/ACC.2014.6859476

Filename

6859476