Nonlinear backstepping controller design for V2G applications with output LCL filters

2017 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2017-11-01 DOI:10.1109/AUPEC.2017.8282403

T. K. Roy, M. A. Mahmud, A. Oo

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引用次数: 1

Abstract

This paper presents a nonlinear backsteping control scheme to control the power injection into the grid from an electric vehicle as well as to improve the power quality. The proposed controller is design by considering the dynamical model of vehicle-to-grid (V2G) system along with the dynamics of an LCL filter. The control Lyapunov function is used to analyze the stability of the V2G system as the negative definiteness or semi-definiteness of its derivative indicates the stability of the system. Simulation results are carried out on a test V2G system using MATLAB/SIMULINK Sim-PowerSystems Toolbox. The performance of the proposed controller is compared with a similar backstepping controller used for the V2G system with an L filter in terms of both power injection capability into the grid and improvement in power quality. Simulation results demonstrate that the designed controller offers improved power quality with an LCL filter as compared to an L filter though there are no differences in the power injection capability. This improvement in power quality is demonstrated through the total harmonic distortion (THD) in the injected current into the grid.

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输出LCL滤波器的V2G应用非线性反步控制器设计

本文提出了一种非线性反步控制方案，以控制电动汽车向电网的功率注入，提高电能质量。该控制器的设计考虑了车辆到电网(V2G)系统的动态模型和LCL滤波器的动态特性。控制Lyapunov函数用于分析V2G系统的稳定性，其导数的负确定性或半确定性表示系统的稳定性。利用MATLAB/SIMULINK Sim-PowerSystems工具箱对V2G测试系统进行仿真。将所提出的控制器的性能与用于带有L滤波器的V2G系统的类似反步控制器在向电网注入功率和改善电能质量方面进行了比较。仿真结果表明，与L滤波器相比，LCL滤波器在功率注入能力上没有差异，但所设计的控制器提供了更好的电能质量。这种电能质量的改善通过注入电网电流的总谐波失真(THD)来证明。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 Australasian Universities Power Engineering Conference (AUPEC)

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