Ravi K

Department of Electrical Engineering

School of Electrical Engineering

Vellore Campus

Sakthigokulrajan, C.

Sakthigokulrajan C

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Journal of Building Engineering

This paper focuses on control design of three phase neutral point clamped multilevel inverters (NPC-MLI) interconnected with PV array to the existing grid together equipped with boost converter. To achieve synchronized pulse width modulation and nominal harmonic performance space vector modulation (SVM) is adopted. The controller method of feed forward as well as integrator anti-windup is adopted for the proportional integral (PI) controllers to minimize the degradation problem. The synchronization and stability of the tracking performance of the controllers are verified by the bode diagram. In the proposed method harmonic current from filter capacitance is tracked and transformed to dq controller to reduce the total harmonic distortion (THD). Different three phase transformer-less inverter topologies with the proposed controller are compared with the traditional method. The reliability of the converters is determined by the thermal behavior of the semiconductor devices which equally affects the robustness and cost of the converters. Therefore a simulation platform is developed in a Matlab/Simulink and PLECS simulation environment to analyze the dynamics of the system. The controllers examine feasible option for three phase grid connected PV inverters. © 2015 Elsevier Ltd. All rights reserved © 2015 Elsevier Ltd. All rights reserved.

Modeling and control strategy of three phase neutral point clamped multilevel PV inverter connected to the grid

The abundance and non-polluting nature of solar energy has aroused the interest of many researchers. This worldwide attention of photovoltaic panels has led to the need of generating accurate model for solar photovoltaic (PV) module before proceeding to the installation part. However, accurate modeling of solar PV characteristics is difficult; since the manufacturer's datasheet provides only four values such as Vmp, Imp, Voc, and Isc. Further, for accurate modeling precise estimation of model parameters at different environmental conditions are very essential. On the other hand, optimization technique is a very powerful tool to obtain solutions to complex non-linear problems. Hence, in this paper, Bacterial Foraging Algorithm is proposed to model the solar PV characteristics accurately. A new equation has been evolved to determine the values of Voc, Vmp accurately; since these values decides the closeness of the simulated characteristics. Model parameters are extracted for three different types of solar PV panels. A systematic evaluation and performance comparison of Bacterial Foraging Algorithm with other optimization techniques such as Genetic Algorithm and Artificial Immune System has been done and the best computational technique is derived based on performance criteria such as accuracy, consistency, speed of convergence and absolute error. Extensive computations are carried out for the proposed method, as well as for Genetic Algorithm and Artificial Immune System to substantiate the findings. © 2013 Elsevier Ltd.

Solar Energy

Bacterial Foraging Algorithm based solar PV parameter estimation

Comparison of different physical models for PV power output prediction

2014 9th International Forum on Strategic Technology (IFOST)

Modeling of MATLAB-Simulink based photovoltaic module using flyback converter

IEEE Journal of Photovoltaics

Investigation on Performance Decay on Photovoltaic Modules: Snail Trails and Cell Microcracks

RETRACTED:Combined role of derived array configurations and MPSO based MPPT in improving the energy yield under partial shading conditions

Journal	Data powered by TypesetJournal of Building Engineering
Publisher	Data powered by TypesetElsevier BV
ISSN	2352-7102
Open Access	0