Modeling and Experimental Investigation on Vector Control of Grid-connected Inverter-Based Distributed Generation

Authors

  • Mohamayee Mohapatra IGIT Sarang, Odisha. India
  • B. Chitti Babu Electrical Engineering from National Institute of Technology Rourkela, India
  • Kanungo Barada Mohanty Life Member of Solar Energy Society of India

DOI:

https://doi.org/10.13052/dgaej2156-3306.3141

Keywords:

Current Controller, Delta modulator, Delta-sigma modulator, Distributed Generation (DG), Total Harmonic Distortion (THD), Vector Control, Voltage Source Inverter (VSI),

Abstract

As the distributed generation (DG) systems based on small hydro,
wind turbine and solar energy etc., are intermittent power sources, the
grid-connected inverter is employed as an interfacing device to maintain
voltage at the point of common coupling (PCC) and power quality. If
these systems are not well controlled then their connection to the utility
network can lead to grid instability or even failure. In order to solve this
problem, current controller plays an important role on grid-connected
inverter system. In this article vector control of grid connected-inverter
system based on grid-flux oriented reference frame is presented. In addition, a modified delta-sigma modulator in the inner feedback loop is
proposed to maintain voltage quality at the utility end with sinusoidal
current injection. Moreover, the proposed control strategy ensures independent control of active and reactive power flowing into the grid. The
overall performance of proposed control strategy is analyzed in MATLAB-Simulink environment and the obtained results are validated with
experimental results in the laboratory prototype using a TMS320F2812
DSP platform.

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Author Biographies

Mohamayee Mohapatra, IGIT Sarang, Odisha. India

Mohamayee Mohapatra received the B.E degree from Biju Patnaik
University of Technology (BPUT), Rourkela, India, in 2003, and the
M.Tech (By Res.,) degree from National Institute of Technology Rourkela, India, in 2012. She is currently working as a lecturer in IGIT Sarang,
Odisha. India. Her interests include power electronics and drives, distributed power generation system, and power quality. E-mail: mohamayee@gmail.com

B. Chitti Babu, Electrical Engineering from National Institute of Technology Rourkela, India

B. Chitti Babu (corresponding author) received the B.E degree in
Electrical & Electronics Engineering from Madurai Kamaraj University,
India and M.E degree in Power Electronics & Drives from Anna University Chennai, India and Ph.D. in Electrical Engineering from National
Institute of Technology Rourkela, India in 2003, 2006 and 2012, respectively. He is currently a Postdoctoral Research Fellow with the Centrum
ENET, VSB-Technical University of Ostrava, Czech Republic. He is a recipient of Post-Doctoral Research fellowship from STRONGTiES/European Union Project, U.K to carry out research work at Wroclaw University of Technology (WUT), Poland from 2013- 2014. His research interests
include power electronics applications in distributed power generation
systems and low-power electronics design, including photovoltaic energy systems. He is a senior member of IEEE, USA. E-mail: bcbabunitrkl@
gmail.com

Kanungo Barada Mohanty, Life Member of Solar Energy Society of India

Kanungo Barada Mohanty has received B.E. degree from Sambalpur Univ., M.Tech. and Ph.D. degrees from Indian Institute of Technology, Kharagpur in the years 1989, 1991 and 2002 respectively, in Electrical
Engineering. He is a faculty member of Electrical Engg. Dept, National
Institute of Technology, Rourkela since 1991, and currently serving as
an Associate Professor. He has published 17 journal papers and more
than 40 conference papers. His research interests include control and
estimation in induction machine specifically vector control, DTC and
wind energy conversion systems. Dr. Mohanty is a Senior Member of the
IEEE, Fellow of the IE (India), Fellow of IETE, and Life Member of Solar
Energy Society of India. E-mail: kbmohanty@nitrkl.ac.in

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Published

2016-10-25

How to Cite

Mohapatra, M. ., Babu, B. C. ., & Mohanty, K. B. . (2016). Modeling and Experimental Investigation on Vector Control of Grid-connected Inverter-Based Distributed Generation. Distributed Generation &Amp; Alternative Energy Journal, 31(4), 6–26. https://doi.org/10.13052/dgaej2156-3306.3141

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