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Control Of Fuel Cell Power Systems Principles Modeling Analysis And Feedback Design

A parametric simulation of the wireless power transfer with inductive coupling for electric vehicles, and modelling with artificial bee colony algorithm

The charging unit of battery electric vehicle (BEV) is one of the primary subsystems which allows its interconnection with the charging facility. Due to the nonlinear behavior of the power conditioning circuitry and its sensitivity to external disturbances, robust nonlinear controller is required to achieve various control objectives like output voltage regulation and power factor correction in grid to vehicle (G2V) mode. For this purpose, an integral backstepping sliding mode controller (IBS-SMC) and backstepping sliding mode controller (BS-SMC) is designed in order to achieve these objectives. But their responses exhibit the phenomenon of chattering which is highly undesirable and can cause heat and power losses in the system. In order to mitigate the effect of chattering, supertwisting sliding mode controller (ST-SMC) has been designed which not only reduces the effect of chattering but also exhibits a better dynamic performance in controlling the BEV charger in G2V mode. The global asymptotic stability of the system for the proposed controllers has been proved using Lyapunov stability criterion. The proposed controllers have been simulated on Matlab/Simulink in which ST-SMC has been compared with IBS-SMC and other nonlinear controllers in the literature. The robustness of the designed controllers have also been checked by adding external disturbances in the plant. The results show negligible chattering and better dynamic response of ST-SMC as compared to other controllers. To further validate the designed controller experimentally in G2V mode, hardware in the loop (HIL) simulations have been done using Delfino F28379D dual core microcontroller which further prove the effectiveness of the proposed controller for BEV charger.

Robust nonlinear control of battery electric vehicle charger in grid to vehicle applications

An adaptive fuzzy sliding-mode control for regenerative braking system of electric vehicles

In order to design a high efficiency Wireless Electric Vehicle Charging (WEVC) system, the design of the different system components needs to be optimized, particularly the design of a high-coupling, misalignment-tolerant inductive link (IL), comprising primary and secondary charging coils. Different coil geometries can be utilized for the primary and the secondary sides, each with a set of advantages and drawbacks in terms of weight, cost, coupling at perfect alignment and coupling at lateral misalignments. In this work, a Finite Element Method (FEM)-based systematic approach for the design of double-D (DD) charging coils is presented in detail. In particular, this paper studies the effect of different coil parameters, namely the number of turns and the turn-to-turn spacing, on the coupling performance of the IL at perfect alignment and at ±200 mm lateral misalignment, given a set of space constraints. The proposed design is verified by an experimental prototype to validate the accuracy of the FEM model and the simulation results. Accordingly, FEM simulations are utilized to compare the performance of rectangular, DD and DDQ coils. The FEM results prove the importance of utilizing an additional quadrature coil on the secondary side, despite the added weight and cost, to further improve the misalignment tolerance of the proposed inductive link design.

https://www.mdpi.com/2032-6653/12/3/89/pdf

Design and Performance Analysis of Misalignment Tolerant Charging Coils for Wireless Electric Vehicle Charging Systems

This paper presents the state of the art of the most promising wireless power transfer (WPT) techniques for charging electric vehicle (EV) batteries, namely inductively coupled power transfer (ICPT) and capacitive power transfer (CPT). The working principle, compensation topologies and other related topics are addressed for these two methods. A particular attention is given to the ICPT and its application in dynamic charging is discussed, finally a comparison between the CPT and ICPT is given.

Battery Charger for Electric Vehicles Based ICPT and CPT - A State of the Art

In this work, we consider the problem of controlling a single‐phase on‐board battery electric vehicle (BEV) charger with vehicle‐to‐grid (V2G) technology. The BEV charger consists of a bid...

Nonlinear output feedback control of V2G single‐phase on‐board BEV charger

In this paper, the major factors that affect the performance of wireless power transfer systems, such as coil inner radius and coil number of turns, are discussed. A comparison of three coil shapes covering the coreless case, the case with ferrite, and the case with ferrite and aluminum is also carried out. Another comparison is proposed by addressing the combination of different coil shapes in the wireless power transfer (WPT)system. The analysis covers the coupling coefficient, the mutual inductance, and the self-inductance. Due to the complexity of calculating these parameters, the finite element analysis (FEA) method is adopted by using the Ansys Maxwell software. An introduction to the typical WPT system for electric vehicle charging is also presented.

https://www.mdpi.com/2032-6653/12/1/45/pdf

Analysis of Coil Parameters and Comparison of Circular, Rectangular, and Hexagonal Coils Used in WPT System for Electric Vehicle Charging

This paper deals with the problem of sampled-data observer design to estimate the state of health (SoH), the state of charge (SoC), and the internal temperature for batteries The observation is ba

Sampled-Data Observer for Estimating the State of Charge, State of Health, and Temperature of Batteries

This paper presents a base for understanding and analyzing the behavior of a typical wireless power transfer (WPT) circuit for electric vehicle battery charging applications. A critical analysis of some circuit characteristics is given. Firstly, the phase shift angle technique used to generate the control signals of the inverter is described and the Total Harmonic Distortion (THD) of the produced output AC voltage is analyzed. Secondly, the static and dynamic behavior of the load voltage regarding the phase shift angle is derived. Finally, simulation results are performed to validate the theoretical results.

Abdellah Lassioui

Papers

Battery Charger for Electric Vehicles Based ICPT and CPT - A State of the Art

Nonlinear output feedback control of V2G single‐phase on‐board BEV charger

Analysis of Coil Parameters and Comparison of Circular, Rectangular, and Hexagonal Coils Used in WPT System for Electric Vehicle Charging

Sampled-Data Observer for Estimating the State of Charge, State of Health, and Temperature of Batteries

Characterestics Analysis of Wireless Power Transfer System for Electric Vehicle Charging Applications