Title :
Experimental evaluation of an adaptive nonlinear controller for single-phase UPS
Author :
Noriega-Pineda, D. ; Espinosa-Perez, G. ; Varela-Vega, A. ; Horta-Mejía, S.
Author_Institution :
DEPFI-UNAM, Mexico
Abstract :
A previously reported (Campos-Canton and Espinosa-Perez, 1999) control law that solves the output voltage control problem for a single-phase voltage-source UPS inverter is experimentally evaluated. The adaptive nonlinear controller was developed considering a half-bridge DC-AC power converter connected to a (linear) resistance load. The evaluation procedure considers the following topics: verification of the stability and convergence theoretical properties, evaluation of the dynamic practical response, disturbance (load change) rejection capability, behavior under low size (and then cost) passive elements and (relative) low switching frequency. It is shown that the controller under study satisfies in a remarkable way all the above evaluation criteria
Keywords :
DC-AC power convertors; adaptive control; closed loop systems; control system analysis; convergence; nonlinear control systems; stability; uninterruptible power supplies; adaptive nonlinear controller; convergence; disturbance rejection capability; dynamic practical response; half-bridge DC-AC power converter; resistance load; single-phase UPS; stability; uninterruptible power supplies; Adaptive control; Costs; Filters; Programmable control; Pulse width modulation; Pulse width modulation inverters; Size control; Sliding mode control; Uninterruptible power systems; Voltage control;
Conference_Titel :
Control Applications, 2001. (CCA '01). Proceedings of the 2001 IEEE International Conference on
Conference_Location :
Mexico City
Print_ISBN :
0-7803-6733-2
DOI :
10.1109/CCA.2001.973873
