NDLI: Convex combination of least mean square for grid-tied PV system

Content Provider	IET Digital Library
Author	Jain, Vandana Hussain, Ikhlaq Kandpal, Maulik Singh, Bhim
Abstract	Here, an implementation of three-phase grid-tied single-stage solar photovoltaic (PV) system is done at adverse grid situations of voltage unbalances. The proposed convex combination of least mean square (CCLMS) control approach is adaptive in nature, which extracts the fundamental component of load current (FCI) with fast convergence and provides good performance than conventional controls. The CCLMS algorithm overcomes the compromise of LMS filters between precision and tracking capability due to fixed stepping by providing a combination of two filters for precision and fast tracking. The perturb and observe (P&O)-based maximum power point tracking (MPPT) is employed for peak power extraction from a PV array. The system is tested in the laboratory on a developed prototype at several adverse conditions like voltages unbalance, load currents unbalances, and irradiation changes. The system performance is acceptable and harmonics distortion is in the limits according to the IEEE-519 standard while supplying energy to the utility and to the loads.
Starting Page	2319
Ending Page	2327
Page Count	9
ISSN	17521416
Volume Number	13
e-ISSN	17521424
Issue Number	Issue 13, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/13/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2018.5552
Journal	IET Renewable Power Generation
Publisher Date	2019-06-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Filter Adverse Condition Adverse Grid Situations CCLMS Algorithm Control of Electric Power System Conventional Controls Convergence Convex Combination Fast Convergence Fast Tracking Fixed Stepping Fundamental Component Grid-tied PV System Harmonic Distortion Interpolation And Function Approximation Least Mean Squares Method LMS Filter Load Current Load Current Unbalances Maximum Power Point Trackers Mean Square Control Approach Numerical Analysis Peak Power Extraction Photovoltaic Power System Power Generation Control Power Grid PV Array Solar Photovoltaic System Solar Power Stations System Performance Three-phase Grid-tied Single-stage Tracking Capability Voltage Unbalance Voltage Unbalances
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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