Differential Power Processing for Increased Energy Production and Reliability of Photovoltaic Systems

被引：361

作者：

Shenoy, Pradeep S. ^{[1
]}

Kim, Katherine A. ^{[2
]}

Johnson, Brian B. ^{[2
]}

Krein, Philip T. ^{[2
]}

机构：

[1] Texas Instruments Inc, Kilby Labs, Dallas, TX 75243 USA

[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 06期

基金：

美国国家科学基金会;

关键词：

Differential power processing; local control; maximum power point tracking (MPPT); photovoltaic power; renewable energy; CONNECTION; CONVERTER; ARRAY;

D O I：

10.1109/TPEL.2012.2211082

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Conventional energy conversion architectures in photovoltaic (PV) systems are often forced to tradeoff conversion efficiency and power production. This paper introduces an energy conversion approach that enables each PV element to operate at its maximum power point (MPP) while processing only a small fraction of the total power produced. This is accomplished by providing only the mismatch in the MPP current of a set of series-connected PV elements. Differential power processing increases overall conversion efficiency and overcomes the challenges associated with unmatched MPPs (due to partial shading, damage, manufacturing tolerances, etc.). Several differential power processing architectures are analyzed and compared with Monte Carlo simulations. Local control of the differential converters enables distributed protection and monitoring. Reliability analysis shows significantly increased overall system reliability. Simulation and experimental results are included to demonstrate the benefits of this approach at both the panel and subpanel level.

引用

页码：2968 / 2979

页数：12

共 30 条

[1]

Bergveld H. J., 2011, P IEEE INT TEL EN C

[2]

Brainard G. L., 1995, U.S. Patent, Patent No. [5 479 083, 5479083]

[3] Reliability of PV modules and balance-of-system components [J].

Dhere, NG .

CONFERENCE RECORD OF THE THIRTY-FIRST IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2005, 2005, :1570-1576

[4] 20 years of life and more: Where is the end of life of a PV module? [J].

Dunlop, ED ;

Halton, D ;

Ossenbrink, HA .

CONFERENCE RECORD OF THE THIRTY-FIRST IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2005, 2005, :1593-1596

[5]

Esram T., 2008, P IEEE EN 2030 C NOV

[6] Comparison of photovoltaic array maximum power point tracking techniques [J].

Esram, Trishan ;

Chapman, Patrick L. .

IEEE TRANSACTIONS ON ENERGY CONVERSION, 2007, 22 (02) :439-449

[7]

Kadri R., 2011, P INT C POW ENG EN E

[8]

Kim Katherine A., 2011, 8th International Conference on Power Electronics - ECCE Asia, P393

[9] Photovoltaic Converter Module Configurations for Maximum Power Point Operation [J].

Kim, Katherine A. ;

Krein, Philip T. .

PROCEEDINGS OF THE 2010 POWER AND ENERGY CONFERENCE AT ILLINOIS (PECI), 2010, :77-82

[10] Minimum Energy and Capacitance Requirements for Single-Phase Inverters and Rectifiers Using a Ripple Port [J].

Krein, Philip T. ;

Balog, Robert S. ;

Mirjafari, Mehran .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2012, 27 (11) :4690-4698

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