Development and Operational Control of Two-String Maximum Power Point Trackers in DC Distribution Systems

被引：35

作者：

Chang, Yuan-Chih ^{[1
]}

Kuo, Chia-Ling ^{[1
]}

Sun, Kun-Han ^{[1
]}

Li, Tsung-Chia ^{[1
]}

机构：

[1] Natl Chung Cheng Univ, Dept Elect Engn, Chiayi 621, Taiwan

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 04期

关键词：

Current balancing; dc distribution system; maximum power point tracking; photovoltaic (PV); solar power; TRACKING;

D O I：

10.1109/TPEL.2012.2210737

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：

This paper develops the operational control of two maximum power point trackers (MPPTs) for two-string photovoltaic (PV) panels in dc distribution systems. This dc distribution system is connected to ac grid via a bidirectional inverter. Two PV strings and two MPPTs are implemented in this system. The proposed MPPT topology consists of buck and boost converters to deal with wide output voltage range of PV panels. To accurately determine the input current of MPPTs, the PV-string configuration check is accomplished online. The perturbation and observation method are applied for maximum power point tracking. Moreover, the current balancing of two MPPT modules in parallel is achieved. In this paper, the system configuration and the operational principle of the proposed MPPT are first introduced. Afterward, the perturbation and observation method and the mode transition are demonstrated. Flowcharts of the online PV-string configuration check and current balancing are explained. The validity of configuration check and current balancing is verified via the experimental results. Maximum power tracking performance and power conversion efficiency are also obtained.

引用

页码：1852 / 1861

页数：10

共 22 条

[1] High-Performance Adaptive Perturb and Observe MPPT Technique for Photovoltaic-Based Microgrids [J].

Abdelsalam, Ahmed K. ;

Massoud, Ahmed M. ;

Ahmed, Shehab ;

Enjeti, Prasad N. .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2011, 26 (04) :1010-1021

[2]

Adly M, 2011, IEEE INT CONF FUZZY, P1918

[3] Fuzzy-Logic-Control Approach of a Modified Hill-Climbing Method for Maximum Power Point in Microgrid Standalone Photovoltaic System [J].

Alajmi, Bader N. ;

Ahmed, Khaled H. ;

Finney, Stephen J. ;

Williams, Barry W. .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2011, 26 (04) :1022-1030

[4]

[Anonymous], 2007, Power Engineering Society General Meeting, Tampa, FL, DOI DOI 10.1109/PES.2007.386130

[5] DC distribution for industrial systems: Opportunities and challenges [J].

Baran, ME ;

Mahajan, NR .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2003, 39 (06) :1596-1601

[6] Establishment of a Switched-Reluctance Generator-Based Common DC Microgrid System [J].

Chang, Yuan-Chih ;

Liaw, Chang-Ming .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2011, 26 (09) :2512-2527

[7] DC/DC Conversion Systems Consisting of Multiple Converter Modules: Stability, Control, and Experimental Verifications [J].

Chen, Wu ;

Ruan, Xinbo ;

Yan, Hong ;

Tse, Chi K. .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2009, 24 (5-6) :1463-1474

[8] Analysis of Classical Root-Finding Methods Applied to Digital Maximum Power Point Tracking for Sustainable Photovoltaic Energy Generation [J].

Chun, Seunghyun ;

Kwasinski, Alexis .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2011, 26 (12) :3730-3743

[9]

Coelho Roberto F., 2009, 2009 Brazilian Power Electronics Conference. COBEP 2009, P673, DOI 10.1109/COBEP.2009.5347723

[10] 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

← 1 2 3 →