Power Quality Improvement for Grid Connected Renewable Energy System using FLC

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2017 by IJETT Journal
Volume-53 Number-2
Year of Publication : 2017
Authors : Mr. R. Sampath Kumar, Dr. G. Saravanakumar, Mr. B. Suresh
DOI :  10.14445/22315381/IJETT-V53P213


Mr. R. Sampath Kumar, Dr. G. Saravanakumar, Mr. B. Suresh "Power Quality Improvement for Grid Connected Renewable Energy System using FLC", International Journal of Engineering Trends and Technology (IJETT), V53(2),74-79 November 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Power management for a hybrid power system (solar and wind power) is done by fuzzy logic system using a seven level cascaded multilevel inverter. The implementation of the seven level cascaded inverter is to maintain the THD level of the power system within IEEE standard (5%). This system comprises one set of rectifier unit which is connected to the wind system. PV voltage and rectifier voltage is given as input to the seven level inverter. The proposed inverter reduces the switching loss complexity, size and cost. The PWM signals are originated by using FLC (Fuzzy Logic controller). MPPT algorithm is implemented for the improvement of voltage level in PV panel. The inverted three phase voltage is obtained by functioning the FL membership functions which helps in maintaining the harmonics level below 5%. The fuzzy logic technique has been expectant in the field of converter, electric drives and other intelligent controllers. This process has quick access and it is simpler to integrate. Mamdani model of FL has enhanced in this paper to give linear output when compared to Tsukeno model. Fuzzy logic controller was developed and verified for three phase systems using the simulink MATLAB 2009a in which the components are arranged according to the circuit required. In MATLAB based defuzzification centroid method of fuzzification is done to defuzzify.

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Boost Converter, FLC (Fuzzy Logic controller), cascaded Multi-Level Inverter, MPPT.