NDLI: Converter Rating Analysis for Photovoltaic Differential Power Processing Systems

Content Provider	IEEE Xplore Digital Library
Author	Kim, K.A. Shenoy, P.S. Krein, P.T.
Copyright Year	1986
Abstract	When photovoltaic (PV) cells are connected in series, they experience internal and external mismatch that reduces output power. Differential power processing (DPP) architectures achieve high system efficiency by processing a fraction of the total power while maintaining distributed local maximum power point operation. This paper details the computational methods and analysis used to determine the operation of PV-to-bus and PV-to-PV DPP architectures with rating-limited converters. Simulations for both DPP architectures are used to evaluate system performance over 25 years of operation. Based on data from field studies, a PV power coefficient of variation can be estimated as 0.086 after 25 years. An improvement figure of merit reflecting the ratio of energy produced to that delivered in a conventional system is introduced to evaluate comparative performance. Converter ratings of 15-17% for PV-to-bus and 23-33% for PV-to-PV architectures are identified as appropriate ratings for a 15-submodule system (five PV panels in series). Both DPP architectures with these ratings are shown to deliver up to 2.8% more power compared to a conventional series-string architecture based on the expected panel variation over 25 years of operation. DPP converters also outperform dc optimizers in terms of lifetime performance.
Sponsorship	IEEE Power Electronics Society
Starting Page	1987
Ending Page	1997
Page Count	11
File Size	757316
File Format	PDF
ISSN	08858993
Volume Number	30
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Computer architecture Power generation Topology Short-circuit currents Switches Inverters solar cell variation Dc power optimization differential power processing (DPP) photovoltaic (PV) solar cell degradation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
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
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Novel Transformerless Grid-Connected Power Converter With Negative Grounding for Photovoltaic Generation System

Nondissipative String Current Diverter for Solving the Cascaded DC–DC Converter Connection Problem in Photovoltaic Power Generation System

New topology of DC/DC converter for battery discharging circuit in PV syetem

Extreme high efficiency PV-power converters

Classification and Comparative Evaluation of PV Panel-Integrated DC–DC Converter Concepts

A High-Efficiency PV Module-Integrated DC/DC Converter for PV Energy Harvest in FREEDM Systems

Two soft start methods for bi-directional DC-DC converter in stand-alone PV system

Photovoltaic-Battery-Powered DC Bus System for Common Portable Electronic Devices

An optimized sensorless MPPT method for PV generation system

Converter Rating Analysis for Photovoltaic Differential Power Processing Systems

Similar Documents

Novel Transformerless Grid-Connected Power Converter With Negative Grounding for Photovoltaic Generation System

Nondissipative String Current Diverter for Solving the Cascaded DC–DC Converter Connection Problem in Photovoltaic Power Generation System

New topology of DC/DC converter for battery discharging circuit in PV syetem

Extreme high efficiency PV-power converters

Classification and Comparative Evaluation of PV Panel-Integrated DC–DC Converter Concepts

A High-Efficiency PV Module-Integrated DC/DC Converter for PV Energy Harvest in FREEDM Systems

Two soft start methods for bi-directional DC-DC converter in stand-alone PV system

Photovoltaic-Battery-Powered DC Bus System for Common Portable Electronic Devices

An optimized sensorless MPPT method for PV generation system

Converter Rating Analysis for Photovoltaic Differential Power Processing Systems