The environmental impact of conventional vehicles, mainly due to the air pollutants and greenhouse gas emissions associated with their operation, has accelerated the development of electric transportation. Among the available alternatives, battery electric vehicles (BEVs) have gained considerable attention as a practical approach to reducing emissions from the transport sector. Most electric traction systems use three-phase permanent magnet synchronous machines (PMSMs), mainly because they provide high efficiency, compact size, and accurate torque control. Their performance can be further improved by supplying them through a three-phase, three-level neutral-point-clamped (NPC) inverter. Compared with a conventional two-level inverter, this topology reduces the voltage stress applied to each semiconductor device and produces output voltages with lower harmonic distortion. It can also limit switching losses and improve the quality of the currents supplied to the machine. In this work, Active Disturbance Rejection Control (ADRC) is applied to the current and speed control loops of the traction drive. The closed-loop performance is evaluated in terms of reference tracking accuracy and disturbance rejection capability.
Oumaima Joraiche, A. Abouloifa, E. Elbouchikhi et al.· EPJ Web of Conferences· 0 citations
This paper deals with the control design of a single-phase Modular Multilevel Converter (MMC) interfaced with a photovoltaic (PV) system. The proposed strategy aims to simultaneously achieve two main objectives: i) power factor correction (PFC) on the grid side to improve power quality, and ii) regulation of the PV voltage to ensure precise maximum power point tracking (MPPT). To fulfill these objectives, a cascaded two-loop control structure is developed, in the outer loop, a filtered proportional-integral (FPI) controller is employed, while an Active Disturbance Rejection Control (ADRC) technique is adopted in the inner loop to enhance dynamic performance and disturbance rejection capability. In addition, a comparative analysis with conventional control approaches is carried out to highlight the effectiveness and robustness of the proposed method. The performance of the suggested controller is verified using MATLAB/Simulink simulation, and the obtained results demonstrate fast dynamic response, accurate tracking performance, and stable operation under different operating conditions.
Amine El Boudali, A. Abouloifa, Ouijdane Arich et al.· EPJ Web of Conferences· 0 citations
As renewable energy becomes increasingly essential to global energy strategies, grid-connected photovoltaic (PV) systems are gaining prominence. However, these systems introduce challenges related to power quality and system stability. This paper presents a unified nonlinear cascaded control strategy tailored for a multilevel single-input dual-output (SIDO) boost converter-based grid-connected PV system. The proposed approach is aimed at integrating the sliding mode control (SMC) for both maximum power point tracking (MPPT) and power factor correction (PFC) tasks, while a filtered proportional-integral (PI) controller is employed to stabilize DC voltage regulation. This combination control framework ensures these objectives under varying environmental conditions, all while taking advantage of multilevel conversion, such as reduced component stress and high voltage gain without transformers. Simulations studied within the MATLAB/Simulink environment confirm the proposed approach effectiveness, demonstrating reliable performance and enhanced improvements in system stability compared with the widely conventional approach.
Ouijdane Arich, A. Abouloifa, Amine El Boudali et al.· EPJ Web of Conferences· 0 citations
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