NDLI: Impact of partial shading on the output power of PV systems under partial shading conditions

Content Provider	IET Digital Library
Author	Balasubramanian, Indu Rani Ganesan, Saravana Ilango Chilakapati, Nagamani
Abstract	A major challenge in the photovoltaics (PV) systems is to make it energy efficient. Partial shading reduces the energy yield of PV systems and introduces multiple peaks in the P–V characteristics. The maximum power point trackers (MPPTs) work in conjunction with the boost converter and track the global peak in the P–V characteristics. The boost converter used for MPPT is generally designed to operate with high efficiency at the maximum power point (MPP) voltage of the array by assuming a single peak power point on the P–V characteristics. However, the efficiency of the boost converter varies with the input voltage, and the MPP of the load when the converter efficiency is considered is different from the MPP of the PV array. Since the maximisation of power in the load is ultimately desirable, this study focuses on the maximisation of power to the load. The power transferred to load under different shading patterns is analysed and the results of the study are demonstrated through simulation and experimental results.
Starting Page	657
Ending Page	666
Page Count	10
ISSN	17554535
Volume Number	7
e-ISSN	17554543
Issue Number	Issue 3, Mar (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/7/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0143
Journal	IET Power Electronics
Publisher Date	2013-10-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Boost Converter Efflciency Converter Efflciency Energy Conservation Energy Efficiency Energy Yield Reduction Maximum Power Point Trackers MPP Voltage MPPT P-V Characteristic Partial Shading Condition Partial Shading Impact Photovoltaic Power System Power Converter Power Maximisation Power Supplies to Apparatus PV Array PV System Shading Pattern Solar Power Stations
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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