Transformer-Less Grid Feeding Current Source Inverter for Solar Photovoltaic System

被引：106

作者：

Anand, Sandeep ^{[1
]}

Gundlapalli, Saikrishna Kashyap ^{[1
]}

Fernandes, B. G. ^{[2
]}

机构：

[1] Indian Inst Technol, Bombay 400076, Maharashtra, India

[2] Indian Inst Technol, Dept Elect Engn, Bombay 400076, Maharashtra, India

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2014年 / 61卷 / 10期

关键词：

Current source inverter (CSI); grid feeding system; operation life; solar photovoltaic (PV); CURRENT-SOURCE CONVERTER; POWER POINT TRACKING; CONNECTED INVERTER; LOSSES;

D O I：

10.1109/TIE.2014.2300038

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

080201 [机械制造及其自动化];

摘要：

High efficiency and operating life of grid feeding solar photovoltaic (PV) inverters are demanded. Due to reduced dc-link capacitor requirement, current source inverter (CSI) offers higher reliability than the voltage source based solar inverter. However, conventional three-phase pulse width modulated (PWM) current source based solar inverter injects high earth leakage current into the grid. In order to suppress this current, an isolation transformer can be used. Use of this transformer increases the cost and size, and decreases overall efficiency. In order to address the aforementioned limitations, a modified CSI is proposed in this paper. The proposed inverter suppresses the earth leakage current without using an isolation transformer, thereby increasing the efficiency and reducing cost as compared to conventional current source based solar inverters. A mathematical model of the system is derived based on which controller for the operation of the inverter is designed. The effectiveness of the scheme is verified through detailed simulation study. To confirm the viability of the scheme, experimental studies are carried out on a scaled-down laboratory prototype.

引用

页码：5334 / 5344

页数：11

共 26 条

[1]

Sensorless Control of CSC-Fed IPM Machine for Zero- and Low-Speed Operations Using Pulsating HFI Method [J].

Al-nabi, Ehsan ;

Wu, Bin ;

Zargari, Navid R. ;

Sood, Vijay .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2013, 60 (05) :1711-1723

[2]

A Maximum Power Point Tracking Technique for Partially Shaded Photovoltaic Systems in Microgrids [J].

Alajmi, Bader N. ;

Ahmed, Khaled H. ;

Finney, Stephen J. ;

Williams, Barry W. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2013, 60 (04) :1596-1606

[3]

EMC Issues in High-Power Grid-Connected Photovoltaic Plants [J].

Araneo, Rodolfo ;

Lammens, Sergio ;

Grossi, Marco ;

Bertone, Stefano .

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2009, 51 (03) :639-648

[4]

Highly Efficient Single-Phase Transformerless Inverters for Grid-Connected Photovoltaic Systems [J].

Araujo, Samuel Vasconcelos ;

Zacharias, Peter ;

Mallwitz, Regine .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2010, 57 (09) :3118-3128

[5]

Bierhoff MH, 2004, IEEE POWER ELECTRON, P2836

[6]

Modulation for Three-Phase Transformerless Z-Source Inverter to Reduce Leakage Currents in Photovoltaic Systems [J].

Bradaschia, Fabricio ;

Cavalcanti, Marcelo C. ;

Ferraz, Pedro E. P. ;

Neves, Francisco A. S. ;

dos Santos, Euzeli C., Jr. ;

da Silva, Joao H. G. M. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2011, 58 (12) :5385-5395

[7]

Eliminating Leakage Currents in Neutral Point Clamped Inverters for Photovoltaic Systems [J].

Cavalcanti, Marcelo C. ;

Farias, Alexandre M. ;

Oliveira, Kleber C. ;

Neves, Francisco A. S. ;

Afonso, Joao L. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2012, 59 (01) :435-443

[8]

Chen Y, 2006, IEEE IND APPLIC SOC, P995

[9]

Three-Phase Boost-Type Grid-Connected Inverter [J].

Chen, Yang ;

Smedley, Keyue .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2008, 23 (05) :2301-2309

[10]

Dynamic Modeling and Performance Analysis of a Grid-Connected Current-Source Inverter-Based Photovoltaic System [J].

Dash, Prajna Paramita ;

Kazerani, Mehrdad .

IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, 2011, 2 (04) :443-450

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