This work presents a novel grid integration scheme for a solar photo voltaic source through a distributed static shunt compensator (DSTATCOM). The proposed system used a Super Lift Luo Converter (SLLC) as an interface between the Solar Photo Voltaic (SPV) source and the DC link of the DSTATCOM. Two Proportional Integral converters were employed for the management of the real and reactive power transactions between the DSTATCOM and the point of common coupling (PCC). Since the grid integration of the harvested SPV energy was carried out by the DSTATCOM and the energy supplied through the SPV channel was unpredictable and varied over a wide range, the tuning of the PI controllers of the DSTATCOM became critical. The novelty of this paper lies in the fact that the two PI controllers of the DSTATCOM were tuned by means of the Gravitational Search Algorithm (GSA). The circuit model of the proposed system was developed in the MATLAB/SIMULINK environment. Further on, a scaled-down experimental prototype of the proposed model was developed. The obtained simulation results showed that the proposed system which used the GSA for tuning the PI controllers outperformed the Particle Swarm Optimization (PSO) Algorithm and the Ziegler-Nichols based tuning technique.
Grid integration of Solar Photo Voltaic power, DSTATCOM, Reactive power compensation, Tuning of PI controllers, Gravitational Search Algorithm.
Saravanan INDIRANGATHA PANDIAN, Ponmani CHELLADURAI, Vimala VELARUMUGAM, "Novel GSA-tuned PI Controllers for Grid Integration Scheme of Solar DSTATCOM", Studies in Informatics and Control, ISSN 1220-1766, vol. 33(3), pp. 73-82, 2024. https://doi.org/10.24846/v33i3y202407
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