scholarly journals A comparative study between PI and cascaded sliding regulator based on rotor flux oriented control for photovoltaic pumping system and fuzzy MPPT optimization

Energetika ◽  
2020 ◽  
Vol 66 (1) ◽  
Author(s):  
Ines Zerimeche ◽  
Abdeslam Haouam ◽  
Fateh Mehazzem ◽  
Khalil Nabti ◽  
Rachid Chenni
Keyword(s):  
Comparative Study ◽  
Sliding Mode ◽  
Tracking System ◽  
Pumping System ◽  
Three Phase ◽  
Speed Range ◽  
Rotor Flux ◽  
Phase Converter ◽  
Proper Operation ◽  
Parametric Robustness

In this paper, a comparative study between the PI and the cascaded sliding regulator is made, based on rotor flux oriented control for the photovoltaic pumping system. In order for the motor-pump to be always optimized and operate at the maximum power for each change of illumination or temperature, it is necessary to integrate the MPPT tracking system, we used the fuzzy MPPT technique. The three-phase converter is controlled by the technique of vector width modulation (SVPWM), characterized by low response time and oscillation. Simulations of the proposed structures are validated under Matlab/Simulink. The obtained results show the superiority of cascaded sliding mode control combined with fuzzy MPPT technique, they confirm the effectiveness of this control structure in terms of parametric robustness and ensure proper operation over the entire speed range.

scholarly journals Modeling and Control of a Multifunctional Three-Phase Converter for Bidirectional Power Flow in Plug-In Electric Vehicles

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2591
Author(s):  
Reza Sabzehgar ◽  
Yaser M. Roshan ◽  
Poria Fajri
Keyword(s):  
Electric Vehicles ◽  
Power Flow ◽  
Sliding Mode ◽  
Nonlinear Controller ◽  
Modeling And Control ◽  
Vehicle To Grid ◽  
Operating Modes ◽  
Three Phase ◽  
Phase Converter ◽  
Bidirectional Power Flow

A nonlinear sliding-mode controller for a three-phase converter, utilized in plug-in electric vehicles (PEVs), is proposed in this paper. The proposed controller enables the utilized converter to perform multiple functions during different operating modes of the vehicle, i.e., grid-to-vehicle (G2V) and vehicle-to-grid (V2G) modes. The bidirectional three-phase converter and the proposed controller operate as a power factor correction circuit, bridgeless boost converter, and rectifier during G2V mode (i.e., plug-in charging), and it operates as a conventional single-stage inverter during V2G mode. The stability analysis of the proposed controller is performed by defining a proper Lyapunov function. The functionality of the proposed nonlinear controller is first evaluated through simulation studies. The feasibility and effectiveness of the proposed control strategy is then validated using an industrial control card through a hardware-in-the-loop (HIL) experimental testbed.

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