Publications by authors named "K Srairi"
Health monitoring and analysis of photovoltaic (PV) systems are critical for optimizing energy efficiency, improving reliability, and extending the operational lifespan of PV power plants. Effective fault detection and monitoring are vital for ensuring the proper functioning and maintenance of these systems. PV power plants operating under fault conditions show significant deviations in current-voltage (I-V) characteristics compared to those under normal conditions.
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- The paper explores the use of Model-Free Predictive Control (MFPC) in power electronic systems, focusing on an improved adaptive integral sliding mode observer (AISMO) to better estimate unknown factors in an ultra-local model (ULM).
- The proposed AISMO-MFPC aims to enhance control accuracy by estimating system parameters based on current errors, leading to independent control of the system.
- To achieve lower current ripple, the method incorporates active vector execution time (AVET), allowing for multiple vector selections during a sampling period, which results in faster system responses and reduced harmonics.
A new control strategy based on the root tree optimization (RTO) is presented in order to reduce the chattering phenomena in active and reactive powers, and to minimize the harmonic currents which appear mostly at the level of the rotor side converter (RSC), in a doubly-fed induction generator (DFIG). The root tree optimization is used to adjust the parameters (K,K) of PI controller (RTO-PI). Simulation results are presented to demonstrate the effectiveness of the new proposed technique.
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