Design and Development of Intelligent and Robust Grid Integrated Solar PV System with Improved Power Quality for Roof Top Applications Especially For Abnormal Indian Distribution Feeder

Students of Indian Institute of Technology Delhi, Amresh Kumar Singh, Ikhlaq Hussain won the award for research work of Design and Development of Intelligent and Robust Grid Integrated Solar PV System with Improved Power Quality for Roof Top Applications Especially For Abnormal Indian Distribution Feeder. They carried her project work under guidance of Prof. Bhim Singh.

This work deals with a novel, intelligent and robust control approach for a three phase grid connected solar PV (Photovoltaic) system, which is based on FZA-NLMF (Fast Zero AttractingNormalized Least Mean Fourth) algorithm and few other robust control techniques. Simultaneously, improvement of traditional maximum power point technique (MPPT) is done here, which enhance the tracking performance of conventional MPPT approach. Moreover, this investigation has done for both single stage as well as double stage solar PV system interfaced with local distribution feeder. These control algorithms achieve the objective of mitigation of power quality issues such as harmonics reduction and power factor correction together with extraction of peak power generated by the PV array. The system uses a PV array, a VSC (Voltage Source Converter), linear and nonlinear loads. Here, VSC is connected to a PV array to transfer the active power to the three phase load and the grid. The dependency on tuning of proportionalintegral (PI) controller is reduced because of feedforward term of the PV power. Due to this, the system dynamic response is improved, which makes the system quite robust. The system goals are to mitigate power quality problems and to provide current conditioning while operating in coherence with a weak distribution grid like abnormal Indian distribution feeder, which has poor quality of power, in terms of voltage distortions with imbalances. MATLAB/ Simulink is used to develop the model of the proposed system. The validation of proposed control is done at varying linear and nonlinear loads and under different environmental conditions on a prototype developed in the laboratory.

Dr. Harsh Vardhan, Minister of Science and Technology, awarded the Gandhian Young Technological Innovation (GYTI) Appreciation to  Amresh Kumar Singh, Ikhlaq Hussain, Indian Institute of Technology Delhi at the GYTI 2018 Awards function held at Rashtrapati Bhawan on March 19, 2018.

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