Title :
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
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;
Conference_Titel :
American Control Conference (ACC), 2014
Conference_Location :
Portland, OR
Print_ISBN :
978-1-4799-3272-6
DOI :
10.1109/ACC.2014.6859476
