A novel current controller design for grid-integrated PV inverter system

Author:

Ahmad AyazORCID,Rajaji L.,Iqbal A.

Abstract

AbstractDistributed generators are playing a vital role in supporting the grid in ever-increasing energy demands. Grid code regulation must be followed when integrating the photovoltaic inverter system to the grid. The paper investigates and analyzes a controller model for grid-connected PV inverters to inject sinusoidal current to the grid with minimum distortion. To achieve better tracking and disturbance rejection, a DSP-based current controller is designed with LCL filter. The controller gets the current feedback from the grid, compares it with reference current, and calculates duty cycle to generate PWM pulses to trigger H-bridge converters. The grid voltage is loaded to the initial value in proposed PR controller to ensure the initial inverter voltage to match the grid voltage. The paper presents a novel current controller algorithm for grid-connected inverter system, and simulation is done. A detailed analysis has been carried out to validate the proposed design algorithm. Experimental implementation of the current controller in the DC/AC converter circuits with an LCL filter is done for 5.4 kW to validate and match the simulation model.

Publisher

Springer Science and Business Media LLC

Subject

General Earth and Planetary Sciences,General Physics and Astronomy,General Engineering,General Environmental Science,General Materials Science,General Chemical Engineering

Reference29 articles.

1. Vijayakumari BR, Warrier and N Devarajan (2014) Topologies and control of grid connected power converters International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014], Nagercoil, pp. 401–410,

2. Rhili H, Trabelsi and Hmad J (2019) PI and PR current controllers of single phase grid connected PV system: analysis, comparaison and testing. 16th International Multi-Conference on Systems, Signals & Devices (SSD), Istanbul, Turkey, 2019, pp. 700–705, doi: https://doi.org/10.1109/SSD.2019.8893232.

3. Daniel Zammit, Cyril Spiteri Staines, Maurice Apap, John Licari. (2017) Design of PR current control with selective harmonic compensators using Matlab. Journal of Electrical Systems and Information Technology, Volume 4, Issue 3, Pages 347–358, ISSN 2314–7172, https://doi.org/https://doi.org/10.1016/j.jesit.2017.01.003.

4. Yaosuo Xue, Liuchen Chang, Sren Baekhj Kjaer, J. Bordonau and T. Shimizu (2004) Topologies of single-phase inverters for small distributed power generators: an overview in IEEE Transactions on Power Electronics, vol. 19, no. 5, pp. 1305–1314

5. Teodorescu R, Blaabjerg F, Borup U, Liserre M (2004) A new control structure for grid-connected LCL PV inverters with zero steady-state error and selective harmonic compensation Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, APEC '04., Anaheim, CA, USA, 2004, pp. 580–586 Vol.1.

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3