Résumé

A control system for power conditioning and uninterruptible power supply systems is presented. The design is based on the theory of variable-structure systems with sliding mode. Results of an analytical study and digital simulation of both the power and control systems are reported, showing good agreement. The high dynamics and the robustness of the implemented system, indicated by the simulation results, confirm the validity of the control scheme and suggest the possibility of adopting it for three-phase systems, variable frequency supplies, and measuring equipment.

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