Volume 4 Issue 4 September - November
2016
Research Paper
Romi Choudhary*, A.N. Tiwari**
* PG Scholar, Department of Power
Electronic and Drives Engineering from Madan Mohan Malaviya University,
Gorakhpur, India.
** Associate Professor, Department of
Electrical Engineering, Madan Mohan Malaviya University of Technology,
Gorakhpur, India.
Choudhary, R., and Tiwari, A.N.
(2016). Fuzzy Logic Controller for Three Phase Neutral Point Clamped Inverter
with PV System. i-manager’s Journal on Circuits and Systems, 4(4),
6-11. https://doi.org/10.26634/jcir.4.4.12393
Abstract
The main
contribution of the paper is the proposal of Fuzzy Logic Controller (FLC) for
three phase transformerless neutral point clamped inverters to eliminate
harmonics in photovoltaic systems without requiring any modification on the
multilevel inverter or any additional hardware. Multilevel level inverter
technology has been widely used in the high power Medium voltage energy control
systems [1]. In this paper, the authors have proposed a Fuzzy Logic Controller
for three phase neutral point clamped inverter with PV system. They have used
the neutral point clamped inverter in this paper because NPC inverter results
in the low frequency voltage harmonics in the NP, which is the point between
the two DC-link capacitors [7]. In primary side, PV system eliminates the
harmonics by using the FLC, and the voltage controller is to produce regulated
output voltage with low distortions under all loading conditions. A Fuzzy Logic
Controller is developed by using MATLAB/SIMULINK for the chosen inverter having
applications in the PV system. FLC is found to have better performance. This
paper presents a methodology to generate gating signal to control NPCVSI using
MATLAB/SIMULINK.
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