Abstract
This work addresses the problem of controlling single-phase half bridge series active power filter (SAPF) in presence of perturbations in single-phase power supply grid voltage. The control objective of the SAPF is to compensate the voltage perturbations (voltage harmonics and voltage sags) in order to protect the sensitive load against the disturbances mentioned above. A nonlinear controller is designed, using the Backstepping technique, to cope with the compensation issue. A stability analysis is carried out using average theory to describe the control performances. These latter have been validated by numerical simulation in MATLAB/ SIMULINK.
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